CN108676942A - The materials such as a kind of iron content and/or zinc lead bronze tin cooperate with processing recovery method with molten steel slag - Google Patents
The materials such as a kind of iron content and/or zinc lead bronze tin cooperate with processing recovery method with molten steel slag Download PDFInfo
- Publication number
- CN108676942A CN108676942A CN201810527784.1A CN201810527784A CN108676942A CN 108676942 A CN108676942 A CN 108676942A CN 201810527784 A CN201810527784 A CN 201810527784A CN 108676942 A CN108676942 A CN 108676942A
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- Prior art keywords
- slag
- iron
- air
- furnace
- gold
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 715
- 239000002893 slag Substances 0.000 title claims abstract description 535
- 229910052742 iron Inorganic materials 0.000 title claims abstract description 350
- 239000000463 material Substances 0.000 title claims abstract description 179
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- 229910000831 Steel Inorganic materials 0.000 title claims abstract description 144
- 238000012545 processing Methods 0.000 title claims abstract description 104
- 238000000034 method Methods 0.000 title claims abstract description 76
- 229910000906 Bronze Inorganic materials 0.000 title claims abstract description 40
- 239000010974 bronze Substances 0.000 title claims abstract description 40
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 title claims abstract description 40
- JQJCSZOEVBFDKO-UHFFFAOYSA-N lead zinc Chemical compound [Zn].[Pb] JQJCSZOEVBFDKO-UHFFFAOYSA-N 0.000 title claims abstract description 38
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 title claims abstract description 21
- 238000011084 recovery Methods 0.000 title claims description 19
- 230000009467 reduction Effects 0.000 claims abstract description 191
- 238000003723 Smelting Methods 0.000 claims abstract description 161
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- 239000002184 metal Substances 0.000 claims abstract description 121
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- 239000010931 gold Substances 0.000 claims abstract description 80
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- JEGUKCSWCFPDGT-UHFFFAOYSA-N h2o hydrate Chemical compound O.O JEGUKCSWCFPDGT-UHFFFAOYSA-N 0.000 description 1
- FAHBNUUHRFUEAI-UHFFFAOYSA-M hydroxidooxidoaluminium Chemical compound O[Al]=O FAHBNUUHRFUEAI-UHFFFAOYSA-M 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- JEIPFZHSYJVQDO-UHFFFAOYSA-N iron(III) oxide Inorganic materials O=[Fe]O[Fe]=O JEIPFZHSYJVQDO-UHFFFAOYSA-N 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000155 melt Substances 0.000 description 1
- 230000015689 metaplastic ossification Effects 0.000 description 1
- XZWYZXLIPXDOLR-UHFFFAOYSA-N metformin Chemical compound CN(C)C(=N)NC(N)=N XZWYZXLIPXDOLR-UHFFFAOYSA-N 0.000 description 1
- QMQXDJATSGGYDR-UHFFFAOYSA-N methylidyneiron Chemical compound [C].[Fe] QMQXDJATSGGYDR-UHFFFAOYSA-N 0.000 description 1
- 239000010813 municipal solid waste Substances 0.000 description 1
- MOFOBJHOKRNACT-UHFFFAOYSA-N nickel silver Chemical compound [Ni].[Ag] MOFOBJHOKRNACT-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910000510 noble metal Inorganic materials 0.000 description 1
- 239000002686 phosphate fertilizer Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 238000012958 reprocessing Methods 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000003923 scrap metal Substances 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 239000011787 zinc oxide Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B3/00—General features in the manufacture of pig-iron
- C21B3/04—Recovery of by-products, e.g. slag
- C21B3/06—Treatment of liquid slag
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21B—MANUFACTURE OF IRON OR STEEL
- C21B11/00—Making pig-iron other than in blast furnaces
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B5/00—General methods of reducing to metals
- C22B5/02—Dry methods smelting of sulfides or formation of mattes
- C22B5/10—Dry methods smelting of sulfides or formation of mattes by solid carbonaceous reducing agents
-
- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22B—PRODUCTION AND REFINING OF METALS; PRETREATMENT OF RAW MATERIALS
- C22B7/00—Working up raw materials other than ores, e.g. scrap, to produce non-ferrous metals and compounds thereof; Methods of a general interest or applied to the winning of more than two metals
- C22B7/001—Dry processes
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/20—Recycling
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Environmental & Geological Engineering (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Manufacture And Refinement Of Metals (AREA)
Abstract
The invention discloses the waste materials such as a kind of iron content and/or zinc lead bronze tin and molten steel slags etc. to cooperate with continuous processing online, separate and recover a kind of process of the substances such as metals and slag such as iron zinc lead bronze tin, it is characterized in that pelletizing made of the waste materials such as iron content zinc lead bronze tin, the block materials such as particle and iron content zinc lead bronze tin and high-temperature fusion slag are added in reduction volatilization smelting furnace, pass through air blast, the flux material such as fuel and high-silicon high aluminium such as gangue are added, high temperature reduction, volatilization is handled, the molten iron of acquisition is discharged from reduction volatilization smelting furnace tapping hole, Collection utilization in dust-precipitator is sucked together with the substances such as the zinc lead of volatilization and flue gas, the metals such as the gold, silver and bronze tin-lead of enrichment are recycled from the discharge of reduction volatilization smelting furnace bottommost outlet, slag is discharged through slag notch, converter is returned at grain slag etc. or slag to recycle.Waste materials, molten steel slag and the gangue waste residues such as iron content zinc lead bronze tin etc. cooperate with continuous processing to separate and recover useful metal, have notable energy conservation and environmental protection Social benefit and economic benefit.
Description
Technical field
The present invention relates to the industrial ferrous contained and/or zincy leads such as a kind of steel and iron industry, non-ferrous metals industry, relieving haperacidity chemical industry
The materials such as the solid waste of non ferrous metallic materials such as copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium and steelmaking converter (or electricity
High oxidation iron high alkalinity high-temperature fusion slag (including steel-making molten steel slag, the Con casting ladle being discharged when stove, similarly hereinafter) steel-making is slagged tap
Note recrement, stainless steel molten steel slag etc.) etc. online collaboration continuous processing recycling a kind of manufacturing technique method, more particularly to one
Kind using carbon containing reducer and/or the non-ferrous metals pelletizing such as iron content and/or zincy lead copper and tin indium cadmium bismuth antimony gold and silver nickel chromium triangle potassium sodium (or
Claim agglomerate), particulate material and/or the metallicses block material such as iron content and/or zincy lead copper and tin, the high temperature high oxidation with converter discharge
Iron high alkalinity molten steel slag (is contained in STEELMAKING PRODUCTION area of steel plant in a high temperature reduction volatile smelting furnace apparatus by air blast
Carrier of oxygen), be added the flux material such as the carbon containing fuel and/or high-silicon high aluminium such as gangue waste residue, lump coal, at high temperature reduction, volatilization
Reason, the separation and recovery non-ferrous metals elemental substance such as iron and/or zinc lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, slag
The manufacturing technique method of online collaboration continuous processing recycling.It is useless to belong to the comprehensive utilization of progress secondary resource and solid in steel plant
Material administers energy conservation and environmental protection field.
Background technology
In a variety of different nonferrous metal mines, concentrate, chats, the tailing of ore dressing generation contain more high-grade iron and zinc
The different non-ferrous metals and rare precious metal such as lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver, in the row such as non-ferrous metal and relieving haperacidity chemical industry
Industry, non-ferrous metals smelting works and various chemical plant, the dedusting ash of processing factory (such as zinc-plated factory, plating nickel chromium triangle factory, sulfuric acid plant), sludge
Also contain a certain amount of iron (generally being differed 10~60%) with various metallurgical slags, rotary kiln scum, processing waste residue, red mud etc.
And/or various non-ferrous metals and the rare precious metal such as zinc lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle；In steel and ferroalloy etc.
Metallurgy industry, the equipment such as the smelting furnaces such as blast furnace, steelmaking converter, electric furnace, ferro-alloy furnace and sintering, kiln, machine also will produce when producing
The industrial residues such as non-ferrous metals element dust dedusting ash, the sludge such as a large amount of carbon containing and/or iron content zincy lead potassium sodium chlorine nickel chromium triangle are useless
Material, if the sintering being incorporated as ferrous material before iron uses, the harmful elements such as these zincy lead potassium sodium chlorine enter blast furnace, will be tight
Ghost image rings blast furnace and normally produces.These waste materials of the industry such as coloured, steel are powder-material, mud, generally use wet method point mostly
It is various coloured that iron and zinc lead etc. are carried out from, flotation, Webster stove, fuming furnace, rotary kiln, rotary hearth furnace, shaft furnace, Circulation fluidized-bed furnace etc.
The processing and recycling of the waste material of metallics, that there are equipment investments is big for these methods, operating cost is high, of high cost, iron and slag etc.
Do not detach or detach halfway problem, there is also reagent consumptions big, the secondary dirt of waste water and dregs of wet-leaching method, floatation
Contaminate environmental issue.However, in converter (including electric furnace etc.) STEELMAKING PRODUCTION of steel plant, will produce large numbers of containing iron oxide
(with FeO, Fe2O3Based on) and more metal abrasive grit high alkalinity (high calcium CaO, high magnesium MgO) molten steel slag, fusing point is high, flowing
Property it is poor, slag sluicing system is poor, slightly cooling is that solidification at once is not flowed, and wraps up a large amount of metal abrasive grits in slag, full iron generally 25~
30% or more, basicity is mostly 2.8 or more, and high reaches 4.0, and temperature is also up to 1600 DEG C or more, each steel mill's generally use
Heat dials method, is connect away the molten steel slag that converter is poured out with slag pan, is transferred to, is fetched water cold with carborne to slag processing place
But, residual steel of the size block with slag is sucked out, is selected with crushing-magnetic selection method using the methods of electromagnet sucker by a large amount of steam of emerging
Go out the metallic iron carried secretly in steel-making slag powder.Preferable big steel mill is fetched water hot bored, slag water after cooling in the bored case of heat using heat bored processing
Change explosion.After recycling metallic iron processing, clinker, steel-making slag powder containing part metals abrasive grit and iron oxide composition, tail mud are taken out.
Due to the discharge of slag interruption, easily solidification, iron content, all it is difficult to realize using water quenching or wind quenching, steelmaking converter dephosphorization, slag is phosphorous
Height constrains slag recycling inside steel mill.Currently, each steel mill carries out cold conditions processing after slag cooling, all exist
Technique is coarse, and ferro element difficult separation and recycling, the rate of recovery are low, and occupied ground is big, and get up steam airborne dust, and environment is poor, uncomfortable
The environmental requirement that iron and steel enterprise is increasingly stringenter, high temperature thermal resource is answered to waste, be not utilized.
Inside coloured industry, these iron content and/or zincy lead to generations such as smeltings are (below by iron content and/or containing zinc
Lead is referred to as iron content zincy lead) the waste material pyrogenic attack recycling of the metals such as copper and tin, to volatile zinc lead and other elements to restore cigarette
Based on change method, to elements such as not volatile copper based on copper matte regulus absorption method, etc..These processing methods, to recycle high price
Coloured and rare precious metal as the main purpose, then exist in the form of aoxidizing scum as inexpensive substance to ferro element therein,
Slag is often abandoned it, iron not recycles.Non-ferrous smelt enterprise disperses, and the colored waste ingredient of discharge is miscellaneous, and pyrogenic attack heating is high
Warm melting, its processing cost of consumption amount of heat is high, and recovering effect is poor, is forced mostly using wet-leaching processing recycling.In steel
The industries such as iron and chemical industry, a large amount of iron containing sludge are in muddy, and iron content dedusting ash granularity is extremely fine, the useful member such as iron contained therein
Plain quality is also irregular, some are also considered as the substances such as the zinc lead of harmful element containing the more steel industry in part, it is difficult to
It utilizes, or even is considered as rubbish and abandons everywhere, pollute environment.
In steel industry, many researchs have been done to the processing of the lower converter slag of this value ratio.Chinese patent application
Numbers 201610833748.9《A method of improving slag iron component recovery》, one kind is disclosed by toppling over slag in converter
While modification agent is added, pouring into cinder ladle impact stirring using high-temperature fusion slag carries out certain modifications reactions, to be more convenient for
Magnetic separation recovery after slag processing, the rate of recovery of ferro element when improving magnetic separation.Since the time of slagging tap is especially short, interruption, reaction
Effect is poor, it is obvious that the rate of recovery of ferro element when these methods only improve magnetic separation slag iron to a certain extent, it is existing with each steel mill
Modern slag cooling magnetic separation processing has no much differences, and pollution environment pours into cinder ladle modification there is no changing, in high-temperature fusion slag
When processing, thick smoke of even more emerging, slag boiling are general relatively difficult to achieve in steel-making work area workshop.Slag produced from steel-smelting value compared with
Low, cold conditions processing is really simple, but its useful resources and high temperature heat do not utilize, if only handling single steel under hot
Slag is also faced with technique and a series of problems economically, and to the processing of slag, there has been no big breakthroughs at present.
《It is Chinese metallurgical》8 phases of volume 21《The recycling new approaches of iron and phosphorus are recycled in slag simultaneously》, it is contemplated to one
Kind recycles iron phosphorus new approaches in slag in an ad hoc converter specifically for dephosphorized slag, by top blast oxygen bottom blowing stirring, converts
Enter the phosphorus that restores in carbon saturation molten iron rich absorbent slag, and by reducing viscosity coefficient of dross after modification, enable iron phosphorus with
Slag is smoothly detached, to recycle more phosphor resources.But it is practical in steelmaking converter area, then to set a block converter salvage value very low
Slag, shunt for pneumatic steelmaking it is blast-melted come handle converter smelting discharge slag, first do not say molten iron shunting reduce
The production scale of steel-making, technology arrangement and organization of production and stove and stove can be reduced, there is very greatly per stove with being connected per stove
Problem, converter often fall a clinker stove under slag, be transported to stokehold platform by slag be blended into processing converter, the iron making of handling molten iron, with
And the discharge trend etc. of the iron, slag after the stove that often blows of itself, discontinuous by this pneumatic steelmaking smelter of stove blowing
The compact anxiety of skill feature (adds steel scrap, hot metal charging, lower rifle oxygen blast blowing, thermometric to see tapping, nitrogen flushing slag splashing one after sample, stove
A smelting cycle only has short dozens of minutes, and converter is overturn back and forth, driving is shuttled after the stove of stokehold) Converter before, then
Add a converter for handling the slag poured out to intersect therewith operation, almost without the possibility of realization, does not also see ad hoc turn at present
Stove handles the engineering example of phosphorous slag, and converter oxygen top blown is easily formed oxidizing atmosphere and is not easy to be formed by force also Primordial Qi
Atmosphere.Moreover the molten iron for being originally used for steel-making is diverted to processing slag and absorbs enriched phosphorus, becomes phosphorous pig, is molten iron
The big still molten iron of benefit for becoming steel becomes the problem of phosphorous pig benefit is big and one need of steel mill are weighed, and therefore, this one
Imagination is still difficult to carry out, meanwhile, this imagination is also limited to only handle single converter slag, it is expected that recycling therein few
Iron and phosphor resource.
Chinese Patent Application No. 201611133558.2《A kind of method of slag metallurgy melting also original production》, disclose one
The method of kind slag metallurgy melting also original production, the slag (iron-holder is less than 1%) of the molten steel slag of steel-making or blast furnace is added
In one cool-bag, or addition one can carry out slag bath processing in electrically heated melting reaction device, pass through three necessary items
Part：1. alkalinity or acid material is added to adjust slag basicity, fuel and Electric heating temperature raising is 2. added or chalybeate is added
Material and flux cool down to adjust slag temperature, are 3. mixed using the strength such as stirring, the processing of slag are completed with this, then second
Step makes slag-gold separation (i.e. slag is detached with iron), slag recycle, final " realize fused reduction iron-smelting, it is obtained by the reaction molten
Slag is through processing, and the metallic iron aggregation that makes to be mingled with the pig iron and continue to be reduced is grown up and settled, and phosphorus component is enriched in rich phosphorus phase, logical
Cross separation, obtain metallic iron or steel, rich phosphorus phase " patent purpose.The emphasis of process technology scheme is recycling phosphor resource, Yi Jitong
It crosses a variety of methods and handles the slag after the separation of one gold medal of slag repeatedly, including being blown into oxidizing atmosphere makes slag iron oxide improve, so that
Slag quality, at being grouped as, to make the value of low value slag improve, is deposited in a small amount of so-called of bottom closer to clinker
Metallic iron or steel send pneumatic steelmaking.To the slag slag or blast furnace slag (hardly iron content) of this low value, take charging or
Electrical heating temperature adjustment alkali tune degree, separation reprocessing utilize " two step method " processing method, and there is problems with：1, the technical staff
Skill route fixes P (phosphorus), enrichment P with slag, and then it is direction to detach P recycling P in slag, by P2O5It controls, P is made not gone back
Original enters molten iron, still with P2O5It is retained in slag, obtains 2CaOSiO2-3CaO·P2O5Rich phosphorus phase, cooling are precipitated and recycle P
Element, it can only be that one kind being in oxygen blast that processing procedure entire in this way, which restores in a kind of Fe and controls the smelting situation that P is not restored,
In the weakly reducing atmosphere for seeming oxidizing atmosphere under the property changed gas, therefore takes electrical heating to provide heat source, is stirred and comes by force
Change treatment progress, to influence the reduction rate of iron, is in and faces a difficult choice among may restoring and do not restore between control iron and phosphorus
Condition, the oxidisability or reducing atmosphere of processing are more difficult to control.2, it " is realized in mixing slag described in patent to realize
The high efficiente callback of iron, silicon, calcium, phosphorus component " reaches the technique effect or purpose of " production molten iron, Silicon-rich calcium phase and rich phosphorus phase ", work
Skill scheme takes " two step method " processing, the second last step " separation recycles slag-gold separation phase ", is not only forced using more
Kind of sedimentation method, and it is prominent to the slag after separation, oxygen blast carries out oxidation processes again, improve iron oxide content in slag >=
2wt%, to improve it as the value of the clinker of standard quality, even if in this way, slag is as cement raw material, value is still
So is not too high, the cost that time and effort consuming, slag are converted to cement raw material is higher, economically there is a problem of it is certain, although phosphorus
Resource is valuable, and still, the rich phosphorus using the recycling of this technique is mutually also limited.Due to discontinuity processing, charging heating melting processing
One stove, slag is clean after having detached, empty stove thermal loss, then adds batch of material heating melting, then handles a stove again, then cold
But sedimentation separation, it is this to press the discontinuous process for producing mode of heat discontinuity, it is too cumbersome, be not easy to grasp, be not suitable for extensive big
Bulk industrial organization of production especially takes electrical heating temperature raising mode, and power consumption is of high cost, it is expected that being excavated at a low price using this technique
The slag of value or the inherent resource value of blast furnace slag, or the value of slag or blast furnace slag as clinker is promoted, meaning is not
It is too big.
Invention content
The purpose of the present invention：From the prior art, non-ferrous metal industry is in gold such as processing recycling iron content zincy lead copper and tins
When the waste material of category, consider how that recycling extracts costly coloured and rare precious metal, to cheap ferro element therein
Then slag is used as to abandon；And in steel industry, face iron containing sludge, dedusting ash and the slag produced from steel-smelting of quantum of output bigger, of consideration
It is recycling ferro element therein, since quantum of output is big, iron content is not often high, some also have steel industry to be considered as having for harmful element
Non-ferrous metal impurity, although slag iron content calcium-magnesium-containing also limits it and recycle because of phosphorous height.Respectively based on coloured and steel
Process characteristic, it is proposed that a kind of that two industries are combined, the new iron content in iron and steel enterprise's steel mill production district contains
The materials such as non-ferrous metal solid waste cooperate with the life that continuous processing recycles with steelmaking converter (or electric furnace) molten steel slag " two solid wastes "
Production. art method drives processing iron content to contain coloured gold with the extra high molten steel slag of the king-sized temperature of the discharge rate of steel industry
Belong to the materials such as solid waste, separates and recovers the iron and zinc lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium in both solid wastes
Equal non-ferrous metals, to play with greatly with the effect small, art is good for strength.The purpose of this technology is exactly to overcome current coloured and steel mill
Etc. the defect of the prior art that respectively individually handles of the various fixed-end forces of industries and steel mill slag processing, provide one kind at one
It is equivalent to the high temperature reduction for pouring into high-temperature fusion slag of half of blast furnace almost without top bulk indirect reduction area
In volatile smelting furnace apparatus, carbon containing reducer and/or iron content zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium is added
The metallicses block material such as pelletizing and iron content zincy lead copper and tin made of material Deng one or more of metallic element substances, with
One of the high temperature high oxidation iron high alkalinity molten steel slag poured out after the converter smelting of addition, by blasting oxygen-containing gas and/or containing
The fuel such as carbonaceous reducing agent or pulvis, that the carbon-containing fuels and/or high-silicon high aluminium etc. such as high-silicon high aluminium carbon containing gangue, lump coal are added is molten
Agent material, high temperature reduction, volatilization, separation and recovery iron and/or zinc lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc. have coloured gold
Belong to, the online collaboration continuous processing remanufacture process of slag, makes full use of steelmaking converter high temperature high oxidation iron molten steel
Carbonaceous reducing agent and air (or the oxygen-enriched air blasted in the high temperature heat of slag, slag stream impact force and high temperature reduction volatile smelting stove
Or oxygen) and/or fuel or the carbon containing pulvis such as carbon containing reducer, combustion reaction, reduction reaction, volatilization are generated, addition high temperature is made
Substances pelletizing, the particulate materials such as the iron content zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium in reduction volatilization smelting furnace with
And iron in the metallicses block material such as iron content zincy lead copper and tin and zinc lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
The iron in iron oxide in substance and molten steel slag restores, and precipitates, evaporates, the metallic iron and molten steel restored
The metallic iron that itself is carried secretly in slag becomes the heavy collection of molten iron in reduction volatilization smelting furnace lower part (including the meltable nickel chromium triangle in molten iron together
Deng), phosphorus reduction enters molten iron, and phosphorous molten iron is discharged from tapping hole, the zinc lead bronze tin indium cadmium bismuth antimony germanium thallium gallium for restoring, evaporating
The various non ferrous metallic materials such as silver-colored nickel chromium triangle potassium sodium, low boiling point, readily volatilized zinc lead indium cadmium germanium thallium gallium silver potassium sodium etc. part or
All metal oxide species are collected or are oxidized in volatilization becomes cigarette ash, is exported through smoke hood, by flue, with flue gas (cigarette
Dirt) Collection utilization in sucking dust-precipitator, the metals such as not volatile, not volatilizing, gold and silver copper and tin bismuth antimony lead for easily precipitating are rich
Collection sinks to reduction volatilization smelting furnace bottommost, is recycled from the discharge of bottommost metal mixture outlet, slag is dropped through basicity
After low melting point reduces mobility improvement, (it can also cancel slag notch through the slag notch above tapping hole, be shared with tapping hole, slag iron
When discharging out of the furnace from tapping hole using skimming tool synchronize carry out slag detached with molten iron) be discharged or water quenching at grain slag or it is air-cooled at
Clinker becomes high grade cement material or quenched after-pouring into devitrified glass, or the other materials such as mineral wool is made, or at dephosphorization
Slag composition after reason, high-temperature slag are back to use converter and make the use of flux cycle stock.To make full use of the height of high-temperature fusion slag
High calcium (CaO) high magnesium (MgO) basic solvent substance in warm amount waste heat and slag passes through reduction, volatiling reaction, recycling steel-making
Iron in slag and various ferrous materials, obtain phosphorous molten iron or iron block product (it is meltable when the nickel chromium triangle of molten iron is high as nickel chromium triangle
Iron block product, molten iron is for steel-making or molten iron copper coin after carrying out dephosphorization processing as Fhigh phosphorus pig iron iron block product or again when molten iron phosphorus is high
Element carried out when high except after Copper treatment molten iron for steel-making, or optionally the substances such as the phosphorus after recycling dephosphorization copper removal and copper be used as it is other
On the way), metal mixtures and the zincy lead indiums such as the various non-ferrous metal elements such as enrichment gold, silver and bronze tin bismuth antimony lead can especially be obtained
Half product of non-ferrous metals cigarette ash powder, the slags that separated in synchronization obtains such as cadmium germanium thallium gallium silver potassium sodium can do the cement such as grain slag, clinker
Material, or other available materials such as can make devitrified glass, mineral wool, improve the value of cheap slag, after obtained dephosphorization
High-temperature slag can also be used as dephosphorization slag material and be back to use converter recycling, can preferably recycle high temperature sensible heat, reduce new
Slag material dosage, reduce the output of slag, with realize iron, coloured and rare precious metal, reaction being totally separated of slag, recycle,
It efficiently utilizes, achieves many things at one stroke.By being added high-temperature fusion slag, the materials such as iron content zincy lead copper and tin and molten steel slag " two is solid
It is useless " collaboration processing, it is effectively utilized the high temperature sensible heat of molten steel slag and has recycled ferro element therein, but slag basicity is excessively high,
CaO/SiO2Mostly 2.8 or more, not only CaO high, but also Al2O3Especially low, therefore, slag fusing point is high, viscosity is high, unfavorable each
Kind reaction carries out and slag sluicing system, needs that the high silicon high alumina acid ingredients such as silica are added to neutralize the high magnesium alkalinity of the high calcium in slag
Ingredient reduces slag fusing point and viscosity to reduce slag basicity, improves slag fluidity, and coal industry exploitation generation is big
Just silicon high alumina is high for the flyash containing carbon residue, cinder that the carbon containing gangue tailings and power plant of amount accumulation is discharged etc.,
And reduction volatilization processing also needs to increase more carbonaceous reducing agent and exothermic mixture, the carbon containing gangue waste residue of high-silicon high aluminium, fine coal
(gangue waste residue is carbon containing generally 20~40%, and part flyash, cinder contain carbon residue 8~20%, largely for ash, cinder etc.
Coal ash content is all with SiO2And Al2O3Based on acid ingredient) just act as high-silicon high aluminium acidic flux material and carbon containing reducer
The double action of grade fuel, it is both fuel and high-silicon high aluminic acid to take and largely use gangue waste residue, flyash, cinder conduct
Property flux material substitute the acidic fluxs material such as the height silicon high alumina such as the conventional fuels such as carbon containing lump coal and silica, carry out iron content zincy lead copper
" steel "+" coloured "+" coal " three of the waste materials such as tin, molten steel slag, gangue waste residue (including the flyash etc. containing carbon residue)
The collaboration of industry " three solid wastes " is handled, and is turned waste into wealth, be more advantageous to the useless drop of further profit this, increase economic efficiency and Environmental Effect
The resolution of benefit, a large amount of flyash of a large amount of gangue waste residues and power plant generation that are also generated for coal industry exploitation has found one
Item profit is given up new outlet.By continuous production, production technology and line of products are more reasonable, operation is more easy to control, technically more may be used
Row, especially by prominent collaboration processing, largely the solid wastes such as non-ferrous metal containing high value and hazardous waste, processing recycling obtain
The coloured product with rare precious metal higher value such as zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver enables to obtain better
Economic benefit to realize existing energy conservation and environmental protection social benefit, and has significant economic benefit, it is economic and environment-friendly more to reach energy-saving and emission-reduction
Comprehensive effect.
Technical scheme of the present invention：One kind is equivalent to one and does not almost have in a high temperature reduction volatile smelting furnace apparatus
There is the high temperature reduction volatile smelting stove dress for pouring into high-temperature fusion slag of half of blast furnace in top bulk indirect reduction area
In setting, the materials such as iron content solid waste containing non-ferrous metal cooperate with continuous place with steelmaking converter (or electric furnace) molten steel slag " two solid wastes "
Reason, high temperature reduction, volatilization, the utilities such as separation and recovery iron, non-ferrous metal and slag.1 device of reduction volatilization smelting furnace is equipped with
Slag mouth 2, charge door 3, air-blast nozzle (or spray gun) 4 and smoke hood outlet 5, are equipped with slag notch 6, tapping hole from top to bottom
7, metal mixture outlet 8, when cancelling slag notch 6, slag and molten iron are all discharged from tapping hole 7, when processing only has iron content
The material of non ferrous metallic materials such as zinc indium containing easy reduction volatilization of various materials or instrument iron content when, the metal for cancelling bottommost is mixed
Object outlet 8 is closed, only sets out cinder notch 6 and tapping hole 7, or only there are one tapping holes 7.Its method is：Be added carbon containing reducer and/
Or the material of one or more of metallic element substances such as iron content zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium is made
The metallicses block material 9, with the converter smelting of addition such as pelletizing, particulate material and/or other iron content zincy lead copper and tin gold and silver after
One of the high temperature high oxidation iron high alkalinity molten steel slag 12 poured out, by air-blast nozzle (or spray gun) 4 blast oxygen-containing gas 13 and/
Or the fuel such as carbon containing reducer or fine particles containing carbon 14 and the carbon-containing fuels such as the carbon containing gangue waste residue of high-silicon high aluminium, lump coal are added
(processing slag is tacky, and fluorite is added when necessary reduces slag viscosity, to improve clinker for the flux material such as 10 and/or high-silicon high aluminium 11
Mobility) processing of collaboration immediately online, high temperature reduction, volatilization separate and recover iron and zinc lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver
The continuous production processes method of the non-ferrous metals such as nickel chromium triangle potassium sodium, slag.Using the blast furnace gas cloth bag dedusting ash of carbon containing reducer
(also known as blast furnace dust) (or gas mud) and blast furnace gravitational dust collection ash and coal dust (coke powder, coking, dust removing ash or bastard coal mountain flour,
Flyash, cinder powder containing carbon residue etc.) etc. carbon containing reducers and/or iron content zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel
The one or more metallic element non-ferrous metal such as chromium potassium sodium concentrate, chats, tailing and various non-ferrous metal metallurgy slags, rotary kiln
The waste residues such as scum, dedusting ash, dedusting mud, galvanizing, wet-leaching slag, pyrite cinder, copper ashes, the cyanidation gold-extracted silver-colored tailings, red of carrying
The stove dedusting ash of the industry such as mud etc., steel and ferroalloy, sintering and ironmaking dedusting ash, steelmaking converter (or electric furnace) dedusting sludge
The iron cements such as (or dedusting ash), iron scale and reduced iron powder containing zinc, chemical industry and all kinds of iron containing sludges, iron powder etc. are a kind of or several
Kind powder, through being mixed and made into the common pelletizing (agglomerate) such as carbonaceous pelletizing (agglomerate) and/or iron content zincy lead.According to high temperature molten bath carbon
Thermal reduction is theoretical, the metal oxide high-temperatures such as carbonaceous pelletizing iron zinc lead bronze tin autoreduction theory and metallic compound high-temperature fusion
Carbon theory of reduction, molten slag CaO-MgO-SiO2-Al2O3- FeO slag system difference basicity melting temperature, fusing point and viscosity characteristics
Theory blasts the fuel such as oxygen-containing gas 13 and/or carbon containing reducer by air-blast nozzle 4 or powder 14, addition high-silicon high aluminium contains
(processing slag is tacky, when necessary for the flux material 11 such as the carbon containing fuel 10 and/or high-silicon high aluminium such as the gangue waste residue of carbon, lump coal
Fluorite, which is added, reduces slag viscosity, to improve slag fluidity), in stove, pelletizing (agglomerate) and/or iron content zincy lead copper and tin gold
The high temperature high oxidation iron high alkalinity molten steel slag 12 that the metallicses such as silver block material 9 is poured out with the converter smelting being added is online together
Cooperate with continuous processing recycling, make full use of steelmaking converter high-temperature fusion slag 12 be added when high temperature heat, slag stream impact force and
Carbonaceous reducing agent and the air (or oxygen-enriched air or oxygen) 13 blasted and/or carbon containing reducer in high temperature reduction volatile smelting stove 1
Equal fuel or powder 14, generate combustion reaction, reduction reaction, volatilization, according to each stage for the treatment of progress temperature and reduction volatilization
Difference requires, and adjustment is added or sprays into material in stove and brings heat and fuel combustion heat and reaction consumption of calorie balance into and add
Enter or spray into the acid-base balance of material in stove, 1 in-furnace slag of control reduction volatilization smelting furnace, 15 quaternary basicity (CaO+MgO)/
(SiO2+Al2O3) in 0.70~＜ of ＞ 2.5, or 15 dual alkalinity CaO/SiO of control slag2In 0.65~＜ of ＞, 2.0 ranges, control
15 temperature of slag processed increases slag fluidity, can increase fuel in 1350~＜ of ＞, 1650 DEG C of ranges to improve processing speed
Consumption, to control reaction in furnace slag temperature >=1650 DEG C, makes the iron content zincy lead copper in addition high temperature reduction volatile smelting stove l
The metallicses such as substances pelletizing, particulate material and the iron content zincy lead copper and tin gold and silver such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium
Block material 9 (includes the coloured smelting of the metallicses such as the iron content zincy lead copper and tin gold and silver of melting being added from charge door or slag mouth
Refine slag) in iron and the substances and molten steel slag 12 such as zinc lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium in iron oxidation
The iron of object is restored, precipitates, is evaporated, the metallic iron one that itself is carried secretly in the metallic iron and molten steel slag 12 that restore
Rising, which becomes phosphorus of the heavy collection of molten iron 16 in 1 lower part of reduction volatilization smelting furnace, slag, is reduced into molten iron 16, phosphorous molten iron 16 from
Tapping hole 7 discharge (it is meltable when the nickel chromium triangle of molten iron is high as nickel chromium triangle iron block product, when molten iron phosphorus is high as ferrorphosphorus block production
Product or carry out again are carried out when molten iron is high for steel-making or molten iron copper after dephosphorization processing except molten iron or is regarded for steel-making after Copper treatment
The substances such as phosphorus and copper after situation recycling dephosphorization copper removal make other purposes), the zincy lead copper and tin indium cadmium bismuth for restoring, evaporating
The various non ferrous metallic materials such as antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, low boiling point, readily volatilized zinc lead indium cadmium germanium thallium gallium silver potassium
The part or all of volatilization such as sodium or the substance for being oxidized to metal oxide become cigarette ash 17, export 5 through smoke hood, pass through cigarette
Road sucks the Collection utilization everywhere such as dust-precipitator with flue gas (flue dust), not volatile, the not volatilizing, gold, silver and bronze that easily precipitate
1 bottommost of reduction volatilization smelting furnace is sunk in the enrichment of the metals 18 such as tin bismuth antimony lead, (can be adopted from bottommost metal mixture outlet 8
With siphon passing away) discharge be recycled, slag 15 through basicity reduce fusing point reduce mobility improve after, through on tapping hole 7
The slag notch 6 of side (can also cancel slag notch 6, be shared with tapping hole 7, slag 15 and molten iron 16 are adopted when discharging out of the furnace through tapping hole 7
Equally being walked with skimming tool and carry out separation slag 15 and molten iron 16) discharge or water quenching at grain slag or air-cooled at clinker, become high-quality
Cement material or quenched after-pouring are at devitrified glass, or the other materials such as mineral wool are made, or the slag composition after dephosphorization processing
(largely reduction enters molten iron to phosphorus), high-temperature slag is returned into converter and is recycled as liquid slag charge, preferably recycling is high
Warm sensible heat reduces new slag material dosage, reduces the output of slag.
1, the pelletizing made of various powder mixings mainly has two class of carbonaceous pelletizing and common pelletizing：
1., blast furnace gas cloth bag dedusting ash (also known as blast furnace dust) (or gas mud) and blast furnace gravitational dust collection is grey and coal dust
One kind of carbon containing reducers or several such as (coke powder, coking, dust removing ash or bastard coal mountain flour, the flyash containing carbon residue, cinder powders etc.)
The one or more of metallic element non-ferrous metals of kind material and iron content zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
It is the waste residues such as concentrate, chats, tailing and various non-ferrous metal metallurgy slags, rotary kiln scum, dedusting ash, dedusting mud, galvanizing, wet
Method leached mud, pyrite cinder, copper ashes, the cyanidation gold-extracted stove dedusting for proposing the industry such as silver-colored tailings, red mud etc., steel and ferroalloy
Ash, sintering and ironmaking dedusting ash, steelmaking converter (or electric furnace) dedusting sludge (or dedusting ash), iron scale and reduced iron containing zinc
One or more of powders such as the iron cements such as powder, chemical industry, incineration of refuse flyash and various iron containing sludges, iron powder, are made through mixing and contain
Carbon pellets；
2., one or more of metallic elements such as iron content zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium have coloured gold
Belong to the waste residues such as concentrate, chats, tailing and various non-ferrous metal metallurgy slags, rotary kiln scum, dedusting ash, dedusting mud, galvanizing,
Wet-leaching slag, pyrite cinder, copper ashes, the cyanidation gold-extracted stove dedusting for proposing the industry such as silver-colored tailings, red mud etc., steel and ferroalloy
Ash, sintering and ironmaking dedusting ash, steelmaking converter (or electric furnace) dedusting sludge (or dedusting ash), iron scale and reduced iron containing zinc
One or more of powders such as the iron cements such as powder, chemical industry, incineration of refuse flyash and various iron containing sludges, iron powder, are made through mixing and contain
The common pelletizing such as iron zincy lead.
Autoreaction is rapid in pelletizing in the case where melting slag iron high temperature for carbonaceous pelletizing, reaction treatment effect be significantly better than it is not carbon containing only
The common pelletizing such as iron content zincy lead.Carbonaceous pelletizing occurs needed for the inside autoreduction reaction of the iron and various metallic compounds of carbon
Reducing agent carbon molal quantity coefficient of excess need to only reach 1.0~1.3, be incorporated excessive extra carbonaceous reducing agent carbon to supplement
Other metallic compound reduction reactions in stove, there be the carbon for the excess that other materials bring into molten bath in reduction volatilization smelting furnace
(being both reducing agent and exothermic mixture) substance.The mechanical equipments such as pelletizing (agglomerate) ball press, pelletizer (cuber, agglomeration machine)
It is made.
2, the material that slag mouth is added mainly has converter (or electric furnace etc.) to smelt the high-temperature fusion slag of discharge, other meltings
Iron content and/or the metallicses such as zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle nonferrous smelting slag, slag mouth sets
It sets on reduction volatilization smelting furnace side or top；The material that charge door is added mainly has：By various iron content zincy lead copper and tin gold and silver
The common pelletizing such as carbonaceous pelletizing, iron content zincy lead copper and tin gold and silver and particulate material, iron content zincy lead copper made of equal metal powder materials
The metallicses such as Sillim's silver material (mainly block material), the converter steel clinker of recycling, granulated iron, iron content zincy lead copper and tin gold and silver etc.
The block materials such as the lump ore of metallic element and the pellet sinter of firing, the difficult various iron content zincy lead copper and tins detached of difficult reduction
The block material of the metallicses such as the non ferrous metallic materials complicated ores such as indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle, the zinc oxide ore processed
Also include playing to increase SiO with the block materials such as metallurgical slags such as various iron content and/or zincy lead copper and tin2And Al2O3Acid ingredient is made
The high silicon high alumina such as low-grade high silicon iron ore, high-silicon high ferro-aluminum ore, high-silicon high aluminium iron content zincy lead copper and tin gold and silver is acid
Component material, the carbon containing fuel and silica such as also carbon containing high-silicon high aluminium gangue waste residue, lump coal, coke, cullet,
Flux material such as high-silicon high aluminium etc.；Further include that processing viscosity coefficient of dross is higher, the diluent fluorite being added when necessary.For convenience of operation,
Efficiency is improved, feeding device can be installed on charge door, feeding device includes there are one upper ends or multiple feed bins, has valve under feed bin
Door (or synchronous be furnished with meausring apparatus), tremie pipe is opposite under valve or connection charge door, and the materials such as various pelletizings, block material are added
Enter in reduction volatilization smelting furnace；In addition to feeding from feed bin, can manually directly it feed from charge door；It can be in reduction volatilization smelting furnace
Or the heating facilities such as setting preheating chute or preheating elephant trunk on flue gas pipeline, it is radiated using heat smoke in reduction volatilization smelting furnace,
It is preheated and is heated to the materials such as various pelletizings, block material in stove are added, or using the heat source of external heat, it is each in stove to being added
The materials such as kind pelletizing, block material are preheated and are heated, to improve the temperature for the various materials being added in stove.
3, the air for not preheating or preheating (or oxygen-enriched sky is blasted into stove by air-blast nozzle (top blast and bottom blowing claim spray gun)
Gas or oxygen) (First air), can also blast together the fuel such as producer gas, waste oil, coal dust (or coke powder, coking, dust removing ash
Deng), the carbon containing reducers powder such as carbon containing dedusting ash (conveyed and sprayed by Secondary Air), by in carbon in carbonaceous pelletizing and addition stove
The carbon and various metalliferous material pelletizings of addition of the fuel such as lump coal, coke, gangue, block material and flux reacts
Consumption of calorie matches, and grasps reduction treatment heat overall balance, control reduction volatilization melting in-furnace slag temperature is in 1350~＜ of ＞
1650 DEG C of ranges, according to the determining smelting of production suitable for slag basicity (slag basicity height is different, and fusing point is different, and viscosity is different,
Mobility is different, and required corresponding smelting temperature is different) with in-furnace slag Temperature Matching, determine that suitable tapping a blast furnace is slagged tap discharge
Temperature is tapped a blast furnace and can be arranged normal table as required with tapping hole to ensure in stove that various material reactions are smoothed out to slag tap with slag notch
Subject to going out.To improve processing speed, increases slag fluidity, can increase fuel consumption, control reaction in furnace slag temperature >=
1650℃.When air or the oxygen-enriched air preheating that air-blast nozzle blasts, preheating temperature is at 100~1180 DEG C.Sky is blasted into stove
Gas (or oxygen-enriched air or oxygen) blasts the fuel such as producer gas, waste oil, coal dust (or coke powder, coking, dust removing ash etc.), contains
The mode of the powders such as carbon iron content dedusting ash has one or more modes of side-blown, top blast and bottom blowing to be combined.Reduction volatilization melting
Stove internal upper part dead zone tertiary air can be automatically drawn into using suction pressure, can also be provided by the air or oxygen-enriched air preheated.
4, flux material includes the SiO such as silica, cullet2Higher high silicon materials, Al2O3Higher high alumina material.It is low-grade
The high acid ingredient materials such as high silicon iron ore, high-silicon high ferro-aluminum ore, high-silicon high aluminium iron content zincy lead copper and tin gold and silver also play
Increase SiO2And Al2O3Acid ingredient acts on, and the carbon containing gangue waste residue etc. of additional high-silicon high aluminium can reduce the basicity of slag,
Slag fusing point and viscosity are reduced, slag fluidity is improved.By the way that high silicon materials, high alumina material, high-silicon high ferro-aluminum ore, height is added
Fuel such as the high acid ingredient materials such as silicon high alumina iron content zincy lead copper and tin gold and silver and the carbon containing gangue waste residue of high-silicon high aluminium etc.
The various materials for reducing basicity make that fusing point and viscosity, the SiO for improving mobility can be reduced in slag2And Al2O3Acid ingredient increases
Add, slag quaternary basicity (CaO+MgO)/(SiO2+Al2O3) reduce, to significantly reduce in-furnace slag fusing point and viscosity,
Slag fluidity is improved, every reaction process is improved.(CaO+MgO)/(SiO2+Al2O3) control in 0.70~＜ of ＞ 2.5,
Or CaO/SiO2Control is in 0.65~＜ of ＞ 2.0.Wherein (CaO+MgO)/(SiO2+Al2O3) in 0.85~1.60 range, slag
Mobility it is preferable, advantageous various reactions carry out, and slag iron can be easily separated, and the phosphorus restored is easy to enter in molten iron from slag.
5, basic structure (including but not limited to this structure) such as attached drawing 2 of typical reduction volatilization melting furnace apparatus, by
1 furnace body of smelting furnace that refractory material is built into, is rectangle or the round furnace chamber erect, and the enough height of Proper Design are more to store
Metal molten iron and slag etc..Furnace body side or top set converter (or electric furnace) molten steel slag 12 (including the iron content of melting contain zinc
The nonferrous smelting slag of the metallicses such as lead bronze Sillim silver) slag mouth 2, charge door 3 is arranged at furnace body top, by carbonaceous pelletizing, iron content
Metallicses lump material 9, high-silicon high aluminium gangue waste residue, the blocks such as common pelletizing, the iron content zincy lead copper and tin gold and silver such as zincy lead
The fuel such as coal 10 and high-silicon high aluminium flux material 11 etc., are directly added into from charge door 3 in 1 stove of reduction volatilization smelting furnace.Using side-blown
When, there is the above air-blast nozzle of at least one set (or spray gun) 4 in furnace chamber surrounding slag area, and the air for not preheating or preheating is blasted into stove
(or oxygen-enriched air or oxygen) 13, or the powders such as the fuel such as carbon containing reducer or carbon containing iron content 14 are blasted together, using top blast
When, charge level or less is inserted by spray gun (4) and is sprayed into, when using bottom blowing, furnace body injection hole is inserted by spray gun 4 and is sprayed into, and is sealed, is prevented
Only leakage.The charge level above dead zone in slag area sets one group with top nozzle, blasts air (or oxygen-enriched air) etc., or automatic by negative pressure
Sucking releases heat so that oxidation reaction, oxidizing fire reaction occur for the metal vapors of C, CO and volatilization etc. in inner flue gas of the stove
Amount improves cavity temperature and slag iron temperature.At the top of furnace body or side is equipped with smoke evacuation smoke hood outlet 5.Furnace body is from top to bottom
Equipped with slag slag notch 6 (slag notch 6 can be cancelled, the outlet that taps a blast furnace of slagging tap, slag and molten iron are all discharged from tapping hole 7),
(processing only has iron-containing various materials or only iron content contains for the metal mixtures outlet 8 such as molten iron tapping hole 7 and tin-lead containing gold, silver and bronze
When the materials of non ferrous metallic materials such as the zinc indium of easy reduction volatilization, the metal mixture outlet of bottommost is not set) (rainbow can be used
Inhale discharge channel structure).Smoke hood outlet 5, flue and blast air preheating furnace (or air heat exchanger), waste heat boiler (or
Heat exchanger) it is connected, after flue gas cooling, cigarette ash is collected through the flue dust processing systems such as gather dust, is emptied flue gas by air-introduced machine.To improve
Converter life, the furnace body can wrap up coldplate to protect refractory material in furnace body and stove.Coldplate can be by cast iron or cast steel
Deng manufacture, there are cooling by water water jacket (cooling water plate) and the air-cooled two kinds of forms of coldplate of ventilation, is connect by the cooling wind of coldplate
Enter blast air preheating furnace (or air preheater) or furnace body shell encased steel plate, ventilation is air-cooled in double-layer plate cavity, by it
Access blast air preheating.
6, the present invention is by taking the basic structure (attached drawing 2) of the typical reduction volatilization melting furnace apparatus as an example, to describe it
Operating procedure：
Step 1：By the non-ferrous metals element such as iron content and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium
The materials 9 such as solid waste, the flux material 11 such as carbon containing fuel 10 and/or high-silicon high aluminium is by charge door 3, by steelmaking converter smelting
The slag ladle 23 that pours into of refining discharge transports the molten steel slag 12 to come by slag mouth 2, is separately added into reduction volatilization smelting furnace 1,
At the same time, oxygen-containing gas 13 and/or oxygen-containing gas 13 and carbon containing are blasted into reduction volatilization smelting furnace 1 by air-blast nozzle 4
The fuel such as reducing agent or powder 14 carry out high temperature reduction, volatilization processing.1. also, 15 quaternary basicity (CaO+ of control slag
MgO)/(SiO2+Al2O3) in 0.70~＜ of ＞, 2.5 ranges, or 15 dual alkalinity CaO/SiO of control slag2In 0.65~＜ of ＞
2. 2.0 ranges control interior 15 1350~＜ of temperature ＞, the 1650 DEG C of models of slag in reduction and reduction volatilization of reduction volatilization smelting furnace l
Enclose, for improve processing speed, increase slag fluidity, fuel consumption can be increased, with control reaction in furnace slag temperature >=
1650℃.Make iron and/or the zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc. in addition reduction volatilization smelting furnace 1
It is restored together with the substances such as non-ferrous metal element and the iron of the ferriferous oxide in molten steel slag 12, precipitates, evaporates；It adjusts simultaneously
Dead zone flue gas reoxidizes burning air capacity (tertiary air) on honest material face, ensures the oxidation of the metal vapors such as zinc and flue gas in inner flue gas of the stove
In C, CO burning, to improve slag iron temperature and flue-gas temperature in furnace chamber, and improve blast air or oxygen-enriched air 13 and preheat
The heat recovery and preheating and the heating such as the pelletizing being added on the interior preheating chute of stove and block material of temperature and waste heat boiler, preheating
13 temperature of air (or oxygen-enriched air) is at 100~1180 DEG C.
Step 2：According to reaction in furnace situation, adjustment charging and the blow rate required are more according to in-furnace slag 15 and 16 capacity of molten iron
Few and reaction process and converter are slagged tap rhythm, determine that opening slag notch 6 and 7 opportunity of tapping hole slag tap tapping a blast furnace.Reduction is waved
Hair smelting furnace 1 is taken stays slag to stay iron (retaining liquid slag iron operating method in stove) continuous producing method in right amount, can eliminate by stove
The empty stove heat loss and charging heating temperature raising process of secondary interruption production, make slag temperature and slag basicity fluctuate and reduce, accelerate anti-
Answer process, be rapidly achieved normal operation necessary requirement, thus make entire processing procedure it is easily controllable, production be easy to organize and coordinate,
Slag charging, air blast, reduction volatilization, slags tap, taps a blast furnace, recycling in the metals 18 such as furnace bottom lead bullion containing gold and silver and flue gas containing zinc
The collection recycling whole operation of the volatile substances such as lead cigarette ash 17 is all continuous, coherent, orderly, is suitable for high-volume large-scale industry metaplasia
Produce tissue.The metallic iron that itself is carried secretly in the metallic iron and molten steel slag 12 that are restored in various materials in stove becomes iron together
The heavy collection of water 16 enters molten iron in 1 lower part of reduction volatilization smelting furnace, molten steel slag 12 and the phosphorus reduction for smelting the various materials being added
16 (including meltable in metals such as the nickel chromium triangles of molten iron), phosphorous molten iron 16 are discharged from tapping hole 7, phosphorous molten iron 16 are obtained, for rear road
Process utilizes, and is easy reduction, the zinc lead indium cadmium germanium thallium gallium silver potassium sodium etc. of volatilization partly or entirely evaporates or be oxidized to metal
Oxide material etc. becomes cigarette ash 17, and 5 are exported through 1 smoke hood of reduction volatilization smelting furnace, by flue, is inhaled with flue gas (flue dust)
Enter the dust collecting systems such as dust-precipitator and collects pack recycling in ash bucket everywhere；Gold and silver copper and tin bismuth not having volatilization after reduction, easily precipitating
1 bottommost of reduction volatilization smelting furnace is sunk in the enrichment of the metal mixtures such as antimony lead 18, is discharged from bottommost metal mixture outlet 8
It is recycled, recycling is discharged through slag notch 6 in the slag 15 for handling reaction, and the row of molten steel slag 12 is smelted according to steelmaking converter
Go out rhythm, 1 slag of reduction volatilization smelting furnace, charging, blowing and the discharge collection of each product etc. is kept orderly to be carried out continuously.
7, the fusing point after basicity reduces of reduction volatilization smelting furnace discharge reduces the preferable slag of mobility or water quenching Cheng Shui
Slag or it is air-cooled become high grade cement material or quenched after-pouring into devitrified glass, or the other materials such as mineral wool are made at clinker,
Or the slag composition after dephosphorization processing, high-temperature slag are back to use converter, continue to use as converter high-temperature fusion flux material.
8, the high molten iron of nickel chromium triangle as nickel chromium triangle iron block product, high phosphorous molten iron as Fhigh phosphorus pig iron iron block international sale；Turn
When stove molten iron, molten iron remakes phosphate fertilizer etc. and economically utilizes for steel-making, dephosphorized slag after the higher progress dephosphorization treatment of phosphorus；If fusing into iron
Copper coin cellulose content is higher in water, molten iron cannot be directly used to pneumatic steelmaking need processing when, can be used be added FeO-SiO2-CaCl2
Molten iron is for coverter pig, copper volatilization recycling etc. after the methods of slag system material chlorination processing carries out decopper(ing) processing.
9, the enrichment being discharged from bottommost outlet contains the metal mixtures such as gold and silver copper and tin bismuth antimony lead, carries out electrolysis essence
Other nonferrous smelting separation method processing such as refining, distillation, to separate and recover various metals.
10, it is collected through smoke hood containing non-ferrous metals element flue gases such as zinc lead indium cadmium germanium thallium gallium silver potassium sodium, by flue,
In the ash bucket everywhere such as dust-precipitator of flue gas dust collection system, cigarette ash obtains collecting recycling, using nonferrous smeltings such as wet-leachings
Separating treatment mode is detached, refines the various metallicses of recycling；When flue gas sulfur-bearing is higher, desulfurization process is carried out to flue gas；
Reduction volatilization gas melting furnace flue is collected and cigarette ash collecting, can be fitted using steel mill itself secondary BOF dedusting system flue gas dust collection system
After transformation, it is incorporated to the dust collecting system after reduction volatilization gas melting furnace flue is collected recycling high temperature heat cooling, recycling is various to be had
Non-ferrous metal substance cigarette ash, to reduce investment outlay and reduce operating cost.
11, in the high-temperature flue gas recycling dust pelletizing system setting air preheat stove of reduction volatilization smelting furnace discharge, (or air changes
Hot device) and/or waste heat boiler (or heat exchanger), air preheat stokehold combustion chamber blast the progress such as coal gas in combustion air combustion product gases
The removal of the combustible combustions such as CO in flue gas is preheated the air from the air blast to stove or oxygen-enriched air of by temperature raising of burning, and waste heat boiler returns
High-temperature flue gas heat is received, steam or hot water are generated, for power generation or heat supply；Into stove, the air or oxygen-enriched air of air blast are through reduction
The preheating of volatile smelting furnace body, high-temperature flue gas recycling dust collecting system air preheat stove burning preheating or air heat exchanger preheating, or
Through steel mill's other energy heat exchange or burn stove and preheated, preheat air blast air or oxygen-enriched air temperature at 100~1180 DEG C, with
Slag iron temperature in stove is improved, accelerates the reaction speeds such as reduction, volatilization, reduces fuel consumption, reduce cost.
12, it is to adapt to steel mill production district technique, a reduction volatilization smelting furnace pair block converter, furnace body sets a slag
Mouthful, accept the molten steel slag of converter discharge；One two block converter of reduction volatilization smelting furnace pair, furnace body can set two slag mouths, point
The molten steel slag of two block converters discharge is not accepted；One reduction volatilization smelting furnace pair one or more block converters, can be used slag ladle or
The containers such as slag pan catch the high-temperature fusion slag that converter smelting is poured out, then pour into reduction volatilization smelting furnace；Reduction volatilization is molten
Furnace can be mainly designed as fixed according to place situation, may be designed as mobile etc. movable, or can fascinate, furnace body moves
The movable, tilting-type such as dynamic, advantageous slag, deslagging fall iron, advantageous maintenance movement, but are not easy to air blast and fume collection and cigarette
The operations such as the collection recycling of ash.
Beneficial effects of the present invention：Take in a high temperature reduction volatile smelting furnace apparatus, be added carbon containing reducer and/
Or the material of one or more of metallic element substances such as iron content and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium
Manufactured pelletizing, particulate material and/or the metallicses block material such as other iron content and/or zincy lead copper and tin, the converter smelting with addition
The high temperature high alkalinity molten steel slag poured out after refining together, passes through the carbon containing gangue waste residue of air blast, addition high-silicon high aluminium, lump coal etc.
The flux material such as carbon containing fuel and/or high-silicon high aluminium cooperate with continuous processing to recycle online, high temperature reduction, volatilization, recycle iron and zinc
The non-ferrous metals such as lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, itself is pressed from both sides in the metallic iron and molten steel slag that restore
The metallic iron of band becomes the heavy collection of molten iron in reduction volatilization smelting furnace lower part together, is discharged from tapping hole；Restore, evaporate,
The part or all of volatilization such as low boiling point, readily volatilized zinc lead indium cadmium germanium thallium gallium silver potassium sodium is oxidized to metal oxide object
Matter becomes cigarette ash, is exported through smoke hood, and by flue, sucking dust-precipitator etc. with flue gas (flue dust), ash bucket is collected back everywhere
It receives；The metal enrichments such as not volatile, not volatilizing, the gold and silver copper and tin bismuth antimony lead that easily precipitates sink to reduction volatilization smelting furnace most
Bottom is recycled from the discharge of bottommost metal mixture outlet；Slag after processing is through the slag notch above tapping hole
Discharge, or be washed into grain slag or it is air-cooled become cement material at clinker, or make the other materials such as devitrified glass, mineral wool utilization,
Or it returns to converter regarding slag composition after dephosphorization and recycles.By the above thorough processing of online collaboration, separation and recycling, thus
Converter high-temperature fusion slag high temperature and heat and the high magnesium flux material of high calcium are efficiently used and recycled, steel-making steel has been recycled
Iron in slag and various ferrous materials, obtained phosphorous molten iron or iron block product (it is meltable when the nickel chromium triangle of molten iron is high as nickel chromium triangle
Iron block product, molten iron is for steel-making or molten iron copper coin after carrying out dephosphorization processing as Fhigh phosphorus pig iron iron block product or again when molten iron phosphorus is high
Element is carried out when high except molten iron or optionally makees it for steel-making to dephosphorization and the elements such as decopper(ing) product recycling phosphorus and copper after Copper treatment
Its purposes), recycling has obtained the zinc lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc. in the materials such as various solid wastes, dangerous waste
Nonferrous metal product (is such as enriched with the metal mixture and zincy lead indium cadmium germanium of the various non-ferrous metal elements of gold, silver and bronze tin bismuth antimony lead
The non-ferrous metals cigarette ashes such as thallium gallium silver potassium sodium), it has also been completely separated the slag of low value, has been allowed to and as value higher than after magnetic separation iron
Low value slag grain slag, blast furnace cement material, or other available materials such as can be fabricated to devitrified glass, mineral wool, inexpensively
Slag, which also becomes, to be worth as the good material that multiple use is used and want much higher, or the high-temperature slag after dephosphorization
It is back to use converter and continues cycling through use as slag charge, preferably recycled high temperature sensible heat, reduce the output of slag.Iron content is containing coloured
After scrap metal and molten steel slag " two solid wastes " collaboration processing, iron, coloured and rare precious metal among the two, reaction slag it is complete
Part from, recycling, efficiently utilize, serve multiple.It is handled by high temperature reduction volatile smelting, the rate of recovery of iron reaches 94~96%
More than, 92% or more, the metals such as gold and silver easily precipitated are easy to be enriched in the element recovery rates such as volatile zinc lead cadmium easily recycled
It is recycled in the metal mixtures such as lead bullion, the rate of recovery of gold and silver noble metal is 90% or more.However in past, these iron content
The non-ferrous metals generally use such as zincy lead copper and tin gold and silver wet separation, Webster stove, fuming furnace, rotary kiln, turns bottom at flotation
Stove, shaft furnace, Circulation fluidized-bed furnace etc. carry out the processing and recycling of the substances such as iron and various non-ferrous metals, and there are equipment for these methods
Investment is big, operating cost is high, of high cost, iron and slag etc. do not detach or detach halfway problem, wet-leaching method there is also
Reagent consumption is big, waste water and dregs secondary pollution environmental issue.And largely contain iron oxide and more metal abrasive grit in steel plant
High temperature high alkalinity molten steel slag, be usually all to be connect away molten steel slag with slag pan, with carborne to slag processing place, heat
It dials, overturn out, cooling, a large amount of steam of emerging of fetching water, or the bored processing of heat, slag of fetching water explosion, using the methods of electromagnet sucker,
The residual steel of size block is sucked out, the metallic iron carried secretly in steel-making slag powder is selected with crushing-magnetic selection method, recycles and contains portion after metallic iron
The clinker of parting category abrasive grit and iron oxide, steel-making slag powder, tail mud are taken out.It will be apparent that its of these conventional processes and appearance
In its some so-called new slag treatment new process, or there are treatment process coarse, slag ferriferous oxide ferro element be lost in, magnetic
It selects that iron recovery is low, iron is not detached with slag, or unclean, the halfway problem of separation, or is inhaled using carbon saturation molten iron enrichment
It receives in slag the phosphorus that restores there are techniques recycling phosphor resource new process that cumbersome, operation difficulty is big, stove is pressed with steelmaking converter
Two stoves are produced to intersect generation conflict, the big problem of field conduct difficulty or slag treatment recycling phosphorus and promote slag quality new process
Product " molten iron, Silicon-rich calcium phase, rich phosphorus phase " three is not easy to control, output, separation are not easy to grasp, processing speed is slow, electric consumption
Height discontinuously produces many technological deficiencies such as unfavorable large-scale industrial production tissue by heat interruption.The technical program overcomes
The defect of the prior art, steel and iron industry, non-ferrous metals industry, relieving haperacidity chemical industry etc. is industrial ferrous contained and/or zincy lead copper and tin
The material of the non-ferrous metals elements such as indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, the high temperature high oxidation iron with steel plant converters discharge
High alkalinity molten steel slag cooperates with continuous processing online, and it is especially big to have played especially high steel mill's molten steel slag temperature, heat and quantity
Advantage, play with the effect small, art is good for strength, efficiently use and recycled greatly converter high-temperature fusion slag high temperature and
Heat and the high magnesium flux material of high calcium realize iron, coloured and rare precious metal, react being totally separated, recycle, efficiently for slag
Utilization, the metals oxidation heat liberation such as sensible heat utilization, flue gas CO second-time burnings heat release, zinc of high-temperature fusion slag and high-temperature flue gas
The heat recovery and utilizations such as blast air preheating significantly increase heat income, improve reaction speed and treatment effect, drop significantly
Low processing cost, energy conservation and environmental protection have reached more preferable more fully effect, are conducive to solid waste and solid containing non-ferrous metal etc.
Useless, hazardous waste extensive high-volume decrement treatment.Due to the high magnesium of high calcium for high alkalinity molten steel slag and a large amount of cheap
Gangue waste residue and flyash containing carbon residue, the cinder just high complementary feature of silicon high alumina, take and largely use cheap bastard coal
Stone waste residue and contain the flyash of carbon residue, cinder substitutes carbon containing coal cinder as the double action of fuel and high-silicon high aluminium flux material
The equal flux material such as fuel and silica grade height silicon high alumina, carries out waste materials, molten steel slag, the gangue waste residues such as iron content zincy lead copper and tin
The collaboration of " three industries " " three solid wastes " of (including the flyash containing carbon residue, cinder etc.) is handled, cheap gangue waste residue and powder
Coal ash is turned waste into wealth again, is more advantageous to the useless drop of profit originally, is further improved economic benefit and environmental benefit, also opened for coal industry
It adopts a large amount of gangue waste residues of generation and the resolution of the powder ash such as a large amount of flyash that power plant generates has found a profit and gives up newly to go out
Road, the recycling of these low value energy of gangue waste residue, flyash and the dangerous wastes such as coloured processing, coloured and rare precious metal recycling,
It is a large amount of non-ferrous metal solid waste dangerous wastes, industry with more preferable more fully economic benefit and energy conservation and environmental protection social benefit
The total collaboration of sludge (dust), mine tailings waste residue, gangue waste residue, power plant fly ash and steelmaking converter slag is efficiently located
Reason has found the roads Tiao Xin, highly beneficial energy-saving and emission-reduction and environment protection treating.
Description of the drawings
The materials such as 1 iron content zincy lead copper and tin of attached drawing cooperate with processing recycling reduction volatilization melting furnace technology signal with molten steel slag
Figure
An a 2 typical stove pair converter of attached drawing or more block converter reduction volatilization smelting furnace apparatus structure schematic diagrams
3 one stove pair of an attached drawing converter reduction volatilization smelting furnace apparatus structure schematic diagram
4 one stove pair of an attached drawing converter reduction volatilization smelting furnace apparatus structure schematic diagram
The a mobile stove pair converter reduction volatilization smelting furnace apparatus structure schematic diagram of attached drawing 5
In the figures above, 1- reduction volatilization smelting furnaces, 2- slag mouths, 3- charge doors, (the spray at the top of Fig. 3,4- of 4- air-blast nozzles
Rifle, Fig. 4, the bottoms 4- spray gun), 5- hood outlets, 6- slag notches, 7- tapping holes, 8- metal mixture outlets, 9- iron content is containing zinc
The materials such as lead, the fuel such as 10- gangues, the flux material such as 11- high-silicon high aluminium, 12- molten steel slags, 13- oxygen-containing gas, 14- are carbon containing
Reducing agent fuel and/or carbon containing equal powders, 15- slags, the phosphorous molten iron of 16-, the cigarette ashes such as 17- zincy leads, 18- metal mixtures,
19- tertiary airs, 20- furnace body cooling winds, 21- cooling waters, 22- preheat chute (Fig. 3,22- preheat elephant trunk), 23- slag ladles, 24- cigarettes
Gas, 25- converters.
Specific implementation mode
Embodiment one：Got ready in the feed bin of converter producing area reduction volatilization melting furnace apparatus top dried by containing
Carbon containing iron content and zinc lead made of blast furnace dust, zinc lead water ground-slag, zincy lead dedusting ash, steel-smelting sewage sludge and dedusting ash of carbon etc.
Etc. compounds pelletizing, reducing agent carbon molal quantity coefficient of excess be 1.1, lumpiness about 40mm, and get lead skim block, gangue ready
Fuel, high silicon iron ore, silica, fluorite flux.
Step 1：(initial charge is added the lump materials such as carbonaceous pelletizing and molten steel slag is added without successively suitable for charging first
Sequence requirement) start to produce (see attached drawing 2), by carbonaceous pelletizing, high silicon iron ore 9, coal gangue fuel 10 and silica flux material 11 are logical
Charge door 3 is crossed, the slag ladle 23 that pours into of converter discharge is transported into the molten steel slag 12 to come by slag mouth 2, is separately added into reduction
In volatile smelting stove 1, at the same time, air 13 is blasted into reduction volatilization smelting furnace 1 by air-blast nozzle 4, carries out high temperature also
Former, volatilization processing.1. also, 15 quaternary basicity (CaO+MgO) of control slag/(SiO2+Al2O3) in 1.60~1.70 ranges, or
Control 15 dual alkalinity CaO/SiO of slag2In 1.50~1.60 ranges, and slag fluidity and response situation are regarded, can be added suitable
Fluorite slugging is measured, to ensure the mobility of higher alkalisation slag in stove.2. taking in expenditure overall balance, control by adjusting furnace heat
1 interior 15 1450~＜ of temperature of slag, 1650 DEG C of ranges in reduction and reduction volatilization of reduction volatilization smelting furnace processed, make addition restore
Together with the non-ferrous metals elements such as iron in volatile smelting stove 1 and zinc lead indium cadmium and the iron of the ferriferous oxide in molten steel slag 12 also
Original is precipitated, is evaporated.Dead zone flue gas on charge level is adjusted simultaneously and reoxidizes burning air capacity (tertiary air), ensures cigarette in stove
The burning of the metal vapors such as zinc oxidation and C, CO in flue gas in gas, improves the pelletizing and block material being added in stove on preheating chute
9 equal preheatings and heating, to improve slag iron temperature and flue-gas temperature in furnace chamber, meanwhile, adjust preheating furnace combustion-supporting air quantity, it is ensured that
Air preheat stove burning stove is normal, improves 13 preheating temperature of blast air, reaches 1000~1100 DEG C, and improve the heat of waste heat boiler
Amount recycling.
Step 2：According to reaction in furnace situation, adjustment charging and the blow rate required.Converter is slagged tap, and is then continued to high-temperature fusion
Slag 12 is added from slag mouth 2 in reduction volatilization smelting furnace 1, be added in stove from charge door suitable carbonaceous pelletizing, lead skim block,
Gangue, high silicon iron ore, silica require, the objects such as molten steel slag 12 and carbonaceous pelletizing, lead skim block according to highly basic slag reuse converter
The ratio of material 9 is substantially 10: (2~3) left and right adjusts the blow rate required, continues reduction volatilization processing operation, the good slag of stability contorting
Basicity and slag temperature reach operation standard and require control range, according to in-furnace slag 15 and 16 capacity of molten iron be how many and reaction
Process and converter are slagged tap rhythm, determine that opening slag notch 6 and 7 opportunity of tapping hole slag tap tapping a blast furnace.Reduction volatilization smelting furnace 1
Gold that is appropriate that slag is stayed to stay iron continuous production, itself being carried secretly in the metallic iron and molten steel slag 12 that are restored in various materials in stove
Category iron is together as the heavy collection of molten iron 16 in 1 lower part of reduction volatilization smelting furnace, molten steel slag 12 and the various materials of smelting addition
Phosphorus reduction enters molten iron 16, and phosphorous molten iron 16 is discharged from tapping hole 7, obtains phosphorous molten iron 16, molten iron casts iron block, as high phosphorus
Pig is for users to use.1 bottommost of reduction volatilization smelting furnace is sunk in the enrichment of the metal mixtures such as lead bullion 18, from bottommost metal
The discharge of mixture outlet 8 is recycled, and export trade coloured smelting factory is handled.The slag 15 of reaction is handled through 6 row of slag notch
Go out, directly return to converter and make the recycling of flux material, there is extra part slag water quenching to be utilized for cement plant at grain slag outward transport.It waves
The substances such as the zinc lead indium cadmium of hair become cigarette ash 17, and 5 are exported through smoke hood, and by flue, dust-precipitator is sucked with flue gas (flue dust)
Etc. dust collecting systems pack recycling is collected in ash bucket everywhere；Waste heat boiler recycles heat and generates steam, for power generation.According to steelmaking converter
The discharge rhythm of molten steel slag 12 is smelted, 1 slag of reduction volatilization smelting furnace, charging, blowing and the discharge collection of each product etc. are kept
Orderly it is carried out continuously.
Embodiment two：Got ready in the feed bin of converter producing area reduction volatilization melting furnace apparatus top dried by containing
Blast furnace dust, bastard coal mountain flour, steel-smelting sewage sludge, incineration of refuse flyash, copper ashes, pyrite cinder, cyanidation gold-extracted slag of carbon etc. are made
Carbon containing iron content and the compounds pelletizing such as zinc lead bronze gold and silver, reducing agent carbon molal quantity coefficient of excess be 1.3, lumpiness is about
40mm, and get high silicon iron ore, gangue, silica flux ready.Charging starts to produce (see attached drawing 2) first, is added from charge door 3
A certain amount of carbonaceous pelletizing, high silicon iron ore, gangue, silica, through slag ladle 23, pass through slag mouth then when converter is slagged tap
2, molten steel slag 12 is added in reduction volatilization smelting furnace 1, at the same time, by air-blast nozzle 4 into reduction volatilization smelting furnace 1
Oxygen-enriched air 13 is blasted, and sprays into producer gas and carbon containing blast furnace dust 14 together, at progress high temperature reduction, volatilization
Reason.Processing in reduction volatilization smelting furnace 1 is added in the fusion smelting slag shipped from Lead And Zinc Smelter by period together in due course, other
Operating process and embodiment one are essentially identical.1. controlling 15 quaternary basicity (CaO+MgO) of slag/(SiO2+Al2O3) 1.15~
1.35 ranges, or 15 dual alkalinity CaO/SiO of control slag2In 1.00~1.25 ranges.2. being taken in by adjusting furnace heat
Pay overall balance, 1 interior 15 temperature of slag, 1400~1600 DEG C of ranges in reduction and reduction volatilization of control reduction volatilization smelting furnace.
3. controlling situation according to slag basicity, the ratio of the materials 9 such as molten steel slag 12 and carbonaceous pelletizing, lead skim block is substantially 10: (3
~4) left and right is subject to and controls slag basicity and meet the requirements, and 4. opens slag notch 6 and tapping hole 7 slag tap tapping a blast furnace, slag 15
It is directly used for the production of later process devitrified glass after the discharge of slag notch 6, extra slag water quenching becomes cement material at grain slag
Material outward transport, molten iron 16 be discharged from tapping hole 7 after by ladle transfer to dephosphorizing station dephosphorization, molten iron and blast-melted one after dephosphorization
Road constantly carries out air blast charging, taps a blast furnace and slag tap in due course, keep continuous production for pneumatic steelmaking.5. from bottommost metal mixture
What outlet 8 was discharged is handled containing metal mixtures 18, export trade coloured smelting factories such as gold and silver copper-leads, each ash bucket of dust collecting system
The cigarette ashes such as the zincy lead indium of recycling 17 pack export trade.According to the discharge rhythm of converter smelting molten steel slag 12, reduction volatilization is kept
1 slag of smelting furnace, charging, blowing and the discharge collection of each product etc. are orderly carried out continuously.
Embodiment three：Got ready in the feed bin of converter producing area reduction volatilization melting furnace apparatus top dried by coal
Spoil powder, flyash, steel-smelting sewage sludge, sintering and ironmaking dedusting ash, iron scale, carbon containing iron content pelletizing made of iron cement etc.,
Reducing agent carbon molal quantity coefficient of excess is 1.2, lumpiness about 50mm, and it is molten to get coal gangue fuel, high silicon iron ore, fluorite ready
Agent.
Step 1：Charging starts to produce (see attached drawing 3) first, by carbonaceous pelletizing, high silicon iron ore 9, coal gangue fuel 10
By charge door 3, the high-temperature fusion slag 12 that converter 25 is discharged directly by slag mouth 2 (long slag conduit), is separately added into
In reduction volatilization smelting furnace 1, at the same time, oxygen 13 is blasted into reduction volatilization smelting furnace 1 by air-blast nozzle 4, and together
Coal dust 14 is sprayed into, high temperature reduction processing is carried out.1. also, 15 quaternary basicity (CaO+MgO) of control slag/(SiO2+Al2O3)
1.90~＜, 2.5 ranges, or 15 dual alkalinity CaO/SiO of control slag2In 1.80~＜, 2.0 ranges, 2. by adjusting in stove
Heat income expenditure overall balance, controls 15 temperature >=1650 DEG C of high alkalinity slag in reduction volatilization smelting furnace 1, and visual fusion slag flows
Property and response situation, can be added appropriate fluorite slugging, to ensure the mobility of high alkalinity slag in stove.Keep addition reduction volatilization molten
It is restored together with oxides-containing iron and the iron of the ferriferous oxide in molten steel slag 12 in furnace 1.It adjusts on charge level simultaneously
Dead zone flue gas reoxidizes burning air capacity (tertiary air), ensures C, CO in the oxidation of the metal vapors such as zinc and flue gas in inner flue gas of the stove
Burning, improve and pelletizing in stove on preheating chute and the equal preheating of block material 9 be added and heats, to improve slag iron temperature in furnace chamber
And flue-gas temperature, meanwhile, adjust preheating furnace combustion-supporting air quantity, it is ensured that air preheat stove burning stove is normal, improves blast air 13
Preheating temperature reaches 1100~1180 DEG C, and improves the heat recovery of waste heat boiler.
Step 2：According to reaction in furnace situation, adjustment charging and the blow rate required and injecting coal quantity, and pass through upper nozzle lances 4 in due course
Oxygen-enriched air 13 is sprayed into stove.Converter 25 is slagged tap, and then continues to the high-temperature fusion slag 12 reduction volatilization is added from slag mouth 2
In smelting furnace 1, suitable carbonaceous pelletizing, high silicon iron ore, gangue are added in stove from charge door 3, according to highly basic slag reuse
Converter requirement, the ratio of the materials 9 such as molten steel slag 12 and carbonaceous pelletizing, high silicon iron ore is substantially 10: (1~2), adjustment drum
Air quantity continues reduction volatilization processing operation, the good slag temperature of stability contorting and slag basicity, reaches operation standard and requires control model
Enclose, according to in-furnace slag 15 and 16 capacity of molten iron how much and reaction process and converter 25 slag tap rhythm, determine opening slag notch 6
Slag tap tapping a blast furnace with 7 opportunity of tapping hole.Reduction volatilization smelting furnace 1 stays slag to stay iron continuous production in right amount, in stove in various materials
It is molten in reduction volatilization that the metallic iron that itself is carried secretly in the metallic iron and molten steel slag 12 that restore becomes the heavy collection of molten iron 16 together
1 lower part of furnace flows into forehearth, and molten steel slag 12 and the phosphorus reduction for smelting the various materials being added enter molten iron 16, contain ferrophosphorus
Water 16 is discharged from the tapping hole 7 of forehearth, obtains phosphorous molten iron 16, molten iron casts iron block, for users to use as Fhigh phosphorus pig iron iron block.
The slag 15 for handling reaction is discharged through slag notch 6, directly returns to converter and makees the recycling of flux material, there is extra part slag water
Grain slag outward transport is quenched into utilize for cement plant.The dedusting ash that the dust collecting systems such as dust-precipitator are collected in ash bucket everywhere is low containing elements such as zinc,
Making pellet feed is made in return.Waste heat boiler recycles heat and generates steam, for power generation.Molten steel slag is smelted according to steelmaking converter 25
12 discharge rhythm keeps 1 slag of reduction volatilization smelting furnace, charging, blowing and the discharge collection of each product etc. to be orderly carried out continuously.
Example IV：Got ready in the feed bin of converter producing area reduction volatilization melting furnace apparatus top dried by refining
Steel sludge, sintering and ironmaking dedusting ash, reduced iron powder containing zinc, iron scale, the changes such as iron content and zinc lead made of chemical industry iron cement etc.
Object pelletizing, lumpiness about 45mm are closed, and gets coal gangue fuel, high silicon iron ore, silica, fluorite flux ready.Charging starts to give birth to first
It produces (see attached drawing 3), a certain amount of pelletizing, high silicon iron ore, gangue, silica is added from charge door 3, then slags tap in converter 25
When, by slag mouth 2, molten steel slag 12 is added in reduction volatilization smelting furnace 1, at the same time, by air-blast nozzle 4 to reduction
Oxygen-enriched air 13 is blasted in volatile smelting stove 1, and sprays into coal dust and waste oil 14 together, carries out high temperature reduction, volatilization processing.It is other
Operating process and embodiment three are essentially identical, in converting process, and oxygen-enriched air are sprayed into stove by upper nozzle lances 4 in due course
13.1. controlling 15 quaternary basicity (CaO+MgO) of slag/(SiO2+Al2O3) in 1.35~1.60 ranges, or control 15 binary of slag
Basicity CaO/SiO2In 1.25~1.50 ranges, and slag fluidity and response situation are regarded, appropriate fluorite slugging can be added, with true
Protect the mobility of high alkalinity slag in stove.2. taking in expenditure overall balance, control reduction volatilization smelting furnace 1 by adjusting furnace heat
Slag 15 1400~＜ of temperature, 1650 DEG C of ranges when inherence reduction and reduction volatilization.3. controlling situation, melting according to slag basicity
The ratio of the materials 9 such as slag 12 and pelletizing, high silicon iron ore is substantially 10: (2~3) left and right, to control slag basicity satisfaction
It subject to it is required that, 4. opens slag notch 6 and tapping hole 7 slag tap tapping a blast furnace, phosphorous molten iron 16 is discharged from the tapping hole 7 of forehearth, obtains
To phosphorous molten iron 16, molten iron casts iron block, for users to use as Fhigh phosphorus pig iron iron block.The slag 15 of reaction is handled through slag notch 6
Discharge directly returns to converter and makees the recycling of flux material, has extra 15 water quenching of part slag at grain slag outward transport for cement plant profit
With；5. the substances such as the zinc lead indium cadmium to volatilize become cigarette ash 17,5 are exported through smoke hood, by flue, is sucked with flue gas (flue dust)
The dust collecting systems such as dust-precipitator collect pack recycling in ash bucket everywhere；Waste heat boiler recycles heat and generates steam, for power generation.According to refining
Steel converter 25 smelts the discharge rhythm of molten steel slag 12, keeps 1 slag of reduction volatilization smelting furnace, charging, blowing and each product row
Go out collection etc. to be orderly carried out continuously.
Embodiment five：Got ready in the feed bin of converter producing area reduction volatilization melting furnace apparatus top dried by containing
The blast furnace dust of carbon, bastard coal mountain flour, flyash, steel-smelting sewage sludge, sintering and ironmaking dedusting ash, reduced iron powder containing zinc, iron oxide
The chemical combination such as carbon containing iron content and zinc lead bronze gold and silver made of skin, chemical industry iron cement, lead zinc grain slag, lead zinc leaching residue, cyanidation gold-extracted slag etc.
Object carbonaceous pelletizing is pressed into the agglomerate of the hollow cylinder of diameter 80mm, high 60mm, interior empty diameter 30mm, reducing agent carbon
Molal quantity coefficient of excess is 1.0, and gets high silicon iron ore, converter steel clinker, granulated iron, coal gangue fuel, silica flux ready.First
Charging starts to produce (see attached drawing 2), and a certain amount of carbonaceous pelletizing, high silicon iron ore, gangue, lump coal, silicon is added from charge door 3
Stone, by slag mouth 2, molten steel slag 12 is added in reduction volatilization smelting furnace 1 then when converter is slagged tap, and at the same time, is led to
It crosses air-blast nozzle 4 and blasts oxygen-enriched air 13 into reduction volatilization smelting furnace 1, and spray into carbon containing blast furnace dust and waste oil together
14, carry out high temperature reduction, volatilization processing.Other operating process and embodiment one are essentially identical.1. controlling 15 quaternary basicity of slag
(CaO+MgO)/(SiO2+Al2O3) in 1.30~1.45 ranges, or 15 dual alkalinity CaO/SiO of control slag21.15~
1.35 range.2. by adjusting furnace heat income expenditure overall balance, waved in reduction and reduction in control reduction volatilization smelting furnace 1
15 1400~＜ of temperature of slag, 1650 DEG C of ranges when hair.3. situation is controlled according to slag basicity, molten steel slag 12 and carbonaceous pelletizing,
The ratio of the materials such as lead skim block 9 is substantially 10: (3~5) left and right is subject to and controls slag basicity and meet the requirements, 4. opens out
Cinder notch 6 and tapping hole 7 slag tap tapping a blast furnace, and 15 direct-water-quenching of slag becomes cement material outward transport at grain slag, and molten iron 16 passes through iron
Water packet is transported to dephosphorizing station dephosphorization, after dephosphorization molten iron with it is blast-melted together for pneumatic steelmaking.Constantly carry out air blast charging, in due course
It taps a blast furnace and slags tap, keep continuous production.5. what is be discharged from bottommost metal mixture outlet 8 contains the metal mixeds such as gold and silver copper-lead
Object 18, export trade coloured smelting factory are handled.The cigarette ashes 17 such as the zincy lead indium of each ash bucket recycling of dust collecting system pack export trade.According to
The discharge rhythm of molten steel slag 12 is smelted in converter 25, keeps 1 slag of reduction volatilization smelting furnace, charging, blowing and the discharge of each product
Collection etc. is orderly carried out continuously.
Embodiment six：Got ready in the feed bin of converter producing area reduction volatilization melting furnace apparatus top dried by coal
The compounds pelletizing such as carbon containing stanniferous copper gold and silver of iron content made of powder, medium tin ore, lead water slag, hardhead, pyrite cinder etc., reduction
Agent carbon molal quantity coefficient of excess is 1.2, lumpiness about 35mm, and gets hardhead block, high silicon iron ore, gangue, silica ready
Cullet.
Step 1：Charging starts to produce (see attached drawing 4) first, by carbonaceous pelletizing, hardhead block, high silicon iron ore 9, bastard coal
Stone fuel 10, silica cullet 11 are by charge door 3, and the high-temperature fusion slag 12 that converter 25 is discharged is directly by slag mouth 2
(long slag conduit), is separately added into reduction volatilization smelting furnace 1, at the same time, by air-blast nozzle 4 to reduction volatilization smelting furnace
Oxygen-enriched air 13 is blasted in 1, and sprays into carbon containing blast furnace dust and waste oil 14 together, carries out high temperature reduction, volatilization processing.And
And 1. control 15 quaternary basicity (CaO+MgO) of slag/(SiO2+Al2O3) in 0.70~1.00 ranges of ＞, or control slag 15 2
First basicity CaO/SiO2In 0.65~0.90 ranges of ＞, expenditure overall balance 2. is taken in by adjusting furnace heat, control reduction is waved
Send out 1350~1500 DEG C of 15 temperature ＞ of high alkalinity slag in smelting furnace 1.Make the iron in addition reduction volatilization smelting furnace 1 and zinc slicker solder
It is restored together with the non-ferrous metals such as indium cadmium element and the iron of the ferriferous oxide in molten steel slag 12, precipitates, evaporates.It adjusts simultaneously
Dead zone flue gas reoxidizes burning air capacity (tertiary air) on honest material face, ensures the oxidation of the metal vapors such as zinc lead and cigarette in inner flue gas of the stove
The burning of C, CO in gas to improve slag iron temperature and flue-gas temperature in furnace chamber, and improve 13 preheating temperature of air blast oxygen-enriched air
With the heat recovery of waste heat boiler, preheating 13 temperature of oxygen-enriched air is at 700~900 DEG C.
Step 2：According to reaction in furnace situation, adjustment charging and the straying quatities such as the blow rate required and carbon containing blast furnace dust, and
Spray into air 13 into stove by bottom spray gun 4 in due course.Converter 25 is slagged tap, and is then continued to high-temperature fusion slag 12 from slag mouth
2 are added in reduction volatilization smelting furnace 1, and suitable carbonaceous pelletizing, gangue, hardhead block, high silicon are added in stove from charge door 3
Iron ore, silica cullet 11, require according to slag basicity, the materials 9 such as molten steel slag 12 and carbonaceous pelletizing, high silicon iron ore
Ratio is substantially 10: (5~6) adjust the blow rate required, continues reduction volatilization processing operation, the good slag temperature of stability contorting and molten
Basicity of slag reaches operation standard and requires control range, according to in-furnace slag 15 and 16 capacity of molten iron be how many and reaction process and
Converter 25 is slagged tap rhythm, determines that opening slag notch 6 and 7 opportunity of tapping hole slag tap tapping a blast furnace.Reduction volatilization smelting furnace 1 stays in right amount
Slag stays iron continuous production, the metallic iron one itself carried secretly in the metallic iron and molten steel slag 12 that are restored in various materials in stove
Rising becomes the heavy collection of molten iron 16 in 1 lower part of reduction volatilization smelting furnace, molten steel slag 12 and the phosphorus reduction for smelting the various materials being added
It into molten iron 16, opens tapping hole 7 and slag tap tapping a blast furnace, in the iron tap channel of stokehold, by iron tap channel tail end skimming tool by molten iron
16 and slag 15 detach.The high-temperature slag 15 separated is directly for high speed after the further adjusting component of later process mineral wool production
Mineral wool is blown out, extra slag is air-cooled at clinker, makees cement material etc..Molten iron 16 by ladle transfer to dephosphorizing station dephosphorization,
After dephosphorization molten iron with it is blast-melted together for pneumatic steelmaking.Air blast charging is constantly carried out, taps a blast furnace and slags tap in due course, keeps continuous raw
Production.What is be discharged from bottommost metal mixture outlet 8 contains the metal mixtures 18 such as gold, silver and bronze tin-lead, export trade coloured smelting factory
It is handled.The substances such as the zinc lead indium cadmium of volatilization become cigarette ash 17,5 are exported through smoke hood, by flue, with flue gas (flue dust)
It sucks the dust collecting systems such as dust-precipitator and collects pack recycling in ash bucket everywhere；Waste heat boiler recycles heat and generates steam, for power generation.Root
The discharge rhythm of molten steel slag 12 is smelted according to steelmaking converter 25, keeps 1 slag of reduction volatilization smelting furnace, charging, blowing and each production
Object discharge collection etc. is orderly carried out continuously.
Embodiment seven：The lead skim got ready is got ready in the feed bin of converter producing area reduction volatilization melting furnace apparatus top
Block, copper ashes block, rotary kiln scum and high silicon iron ore, additional anthracite lump coal.1. charging starts to produce (see attached drawing 4) first,
By lead skim block, copper ashes block, rotary kiln scum, high silicon iron ore, anthracite lump coal by charge door 3, the height that converter 25 is discharged
Warm molten steel slag 12 directly by slag mouth 2 (long slag conduit), is separately added into reduction volatilization smelting furnace 1, at the same time, is led to
It crosses air-blast nozzle 4 and blasts oxygen-enriched air 13 into reduction volatilization smelting furnace 1, and spray into coal dust 14 together, carry out high temperature reduction, wave
Hair processing.Other operating process and embodiment six are essentially identical, are carried out continuously charging, air blast, reduction volatilization processing and operation.②
Control 15 quaternary basicity (CaO+MgO) of slag/(SiO2+Al2O3) in 1.00~1.10 or CaO/SiO2Control 0.90~
1.00,15 temperature of slag is controlled at 1400~1550 DEG C.3. tapping hole 7 is opened slag tap tapping a blast furnace, in the iron tap channel of stokehold,
Molten iron 16 and slag 15 are detached by iron tap channel tail end skimming tool, molten iron 16 enters trough, and molten iron casts iron block export trade, melts
Slag 15 enters slag runner, is recycled at grain slag by high pressure water flushing, as cement material export trade.It constantly carries out air blast charging, tap a blast furnace in due course
It slags tap, keeps continuous production.4. what is be discharged from bottommost outlet 8 contains the metal mixtures 18 such as gold and silver copper-lead, export trade is coloured
Smeltery is handled.The cigarette ashes 17 such as the zincy lead indium cadmium of each ash bucket recycling of dust collecting system pack export trade.Waste heat boiler recycling heat
Amount generates steam, for power generation.The discharge rhythm of molten steel slag 12 is smelted according to steelmaking converter 25, keeps reduction volatilization smelting furnace 1
Slag, charging, blowing and the discharge collection of each product etc. are orderly carried out continuously.
Embodiment eight：It gets ready and has dried in the feed bin of converter producing area movable type reduction volatilization melting furnace apparatus top
By carbon containing blast furnace dust, blast furnace gravitational dust collection ash, steel-smelting sewage sludge, the sludge of Ni and Cr contained and waste residue, lateritic nickel ore mud etc.
Manufactured carbon containing iron content pelletizing, reducing agent carbon molal quantity coefficient of excess be 1.2, lumpiness about 35mm, and get ready gangue,
Silica and cullet.1. first charging start produce (see attached drawing 5), from charge door 3 be added a certain amount of carbon containing iron content pelletizing 9,
Then gangue 10, silica and cullet 11 are opened by reduction volatilization smelting furnace 1 to 25 stokehold of converter, converter is slagged tap, by connecing
Molten steel slag 12 is added in reduction volatilization smelting furnace 1 cinder notch 2, after having connect molten steel slag 12, then by reduction volatilization smelting furnace 1
It opens to blow position, collects flue dust to connecting top fume hood, be downwardly into stove from stove top by one or more spray gun 4
Under furnace charge, oxygen-enriched air 13 is sprayed into, is inserted into stove using another spray gun 4 (quite instead of tertiary air 19), to stove internal upper part dead zone
Air is sprayed into, carbon containing iron content pelletizing 9, gangue 10, silica and cullet 11 is added in due course into stove, is connected to slag instruction, then
Reduction volatilization smelting furnace 1 is opened to Converter, converter 25 is slagged tap, and by slag mouth 2, reduction volatilization is added in molten steel slag 12
In smelting furnace 1, after having connect molten steel slag 12, then reduction volatilization smelting furnace 1 opened to blow position, from stove top by spray gun 4 to
In lower insertion stove under furnace charge, oxygen-enriched air 13 is sprayed into, is inserted into stove using another spray gun 4, air is sprayed into stove internal upper part dead zone,
Meanwhile carbon containing iron content pelletizing 9, gangue 10, silica and cullet 11 is added in due course into stove, it is continuous orderly to carry out slag, add
Material sprays into oxygen-enriched air.2. controlling 15 quaternary basicity (CaO+MgO) of slag/(SiO2+Al2O3) in 1.00~1.20 or CaO/
SiO2Control is 0.90~1.10, by the control of 15 temperature of slag in 1650 DEG C of 1450~＜.3. opening tapping hole 7 slag tap
Iron is detached molten iron 16 and slag 15 by iron tap channel tail end skimming tool in the iron tap channel of stokehold, and molten iron 16 enters trough,
Molten iron casts nickel chromium triangle iron block export trade, and slag 15 enters slag runner, installed and transported with slag pan, clinker recycling is cooled to, as cement material
Expect export trade.The cigarette ashes 17 such as zincy lead indium cadmium of the flue gas that furnace roof range hood is collected through each ash bucket recycling of dust collecting system pack export trade.
Waste heat boiler recycles heat and generates steam, for power generation.The discharge rhythm of molten steel slag 12 is smelted according to steelmaking converter 25, keeps moving
1 slag of dynamic formula reduction volatilization smelting furnace, charging, blowing and the discharge collection of each product etc. are orderly carried out continuously.
Claims (10)
1. a kind of solid of the non-ferrous metals element such as iron content and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium is useless
The materials such as object cooperate with continuous processing online with steel-making molten steel slag, separate and recover iron and/or zinc lead bronze tin indium cadmium bismuth antimony germanium thallium gallium
A kind of process of the non-ferrous metals elemental substances such as gold and silver nickel chromium triangle potassium sodium, slag, it is characterized in that：It volatilizees in a high temperature reduction
Processing in smelting furnace (1) device, reduction volatilization smelting furnace (1) are equipped with slag mouth (2), charge door (3), air-blast nozzle (or spray gun)
(4) and smoke hood exports (5), is equipped with slag notch (6), tapping hole (7), metal mixture outlet (8) from top to bottom, when
When cancelling slag notch (6), slag and molten iron are all discharged from tapping hole (7), when processing only has iron-containing various materials or only iron content
When the material of the non ferrous metallic materials such as the zinc indium containing easy reduction volatilization, cancels the metal mixture outlet (8) of bottommost, only set
Slag notch (6) and tapping hole (7), or only there are one tapping holes (7)；Its process step 1：By iron content and/or zincy lead copper
The materials (9) such as the solid waste of non-ferrous metals element such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, carbon containing fuel (10)
And/or steelmaking converter (or electric furnace etc.) is smelted the molten steel slag of discharge by the flux such as high-silicon high aluminium material (11) by charge door (3)
(12) it by slag mouth (2), is separately added into reduction volatilization smelting furnace (1), at the same time, passes through air-blast nozzle (and/or spray gun)
(4) to blast in reduction volatilization smelting furnace (1) oxygen-containing gas (13) and/or oxygen-containing gas (13) and carbon containing reducer fuel or
Fine particles containing carbon (14) carries out high temperature reduction, volatilization processing, also, is 1. restoring and restoring in control reduction volatilization smelting furnace (1)
1650 DEG C of ranges of slag (15) 1350~＜ of temperature ＞ when volatilization increase slag fluidity, can increase to improve processing speed
Fuel consumption, control reaction in furnace slag (15) temperature >=1650 DEG C, 2. control slag (15) quaternary basicity (CaO+MgO)/
(SiO2+Al2O3) in 0.70~＜ of ＞, 2.5 ranges, or control slag (15) dual alkalinity CaO/SiO2In 0.65~＜ of ＞ 2.0
Range makes iron and/or zinc the lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium in addition reduction volatilization smelting furnace (1) etc. have
It is restored together with the substances such as non-ferrous metal element and the iron of the ferriferous oxide in molten steel slag (12), precipitates, evaporates；Step 2：
It is heavy as molten iron together that the metallic iron that itself is carried secretly in the metallic iron restored in material in stove and molten steel slag (12) is added
Collection enters molten iron (packet in reduction volatilization smelting furnace (1) lower part, molten steel slag (12) and the phosphorus reduction for smelting the various materials being added
Include meltable in metals such as the nickel chromium triangles of molten iron), phosphorous molten iron (16) is discharged from tapping hole (7), phosphorous molten iron (16) is obtained, for rear road
Process utilizes, and is easy reduction, the zinc lead indium cadmium germanium thallium gallium silver potassium sodium etc. of volatilization partly or entirely evaporates or be oxidized to metal
Oxide material etc. becomes flue dust, (5) is exported through reduction volatilization smelting furnace (1) smoke hood, by flue, with flue gas (flue dust)
The dust collecting systems such as dust-precipitator are sucked, obtains collecting in dust collecting system as cigarette ash (17) and recycle, do not have volatilization, Yi Chen after reduction
Reduction volatilization smelting furnace (1) bottommost is sunk in the enrichment of the metal mixtures (18) such as the gold and silver copper and tin bismuth antimony lead in shallow lake, from bottommost gold
Belong to mixture outlet (8) and be discharged and be recycled, handle the slag (15) of reaction through slag notch (6) (when cancelling slag notch (6),
When slag notch (6) is shared with tapping hole (7), slag (15) is equally discharged from tapping hole (7) with molten iron (16), then slag iron point
From) discharge recycling, the discharge rhythm of molten steel slag (12) is smelted according to steelmaking converter (or electric furnace etc.), keeps reduction volatilization
Smelting furnace (1) slag, charging, air blast blowing and the discharge collection of each product etc. are orderly carried out continuously.
2. a kind of iron content according to claim 1 and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
The materials such as the solid waste of non-ferrous metal element cooperate with continuous processing online with steel-making molten steel slag, separate and recover iron and zinc lead bronze
A kind of process of the non-ferrous metals elemental substances such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, slag, it is characterized in that：It connects
Cinder notch (2) be added material mainly have converter (or electric furnace etc.) smelt discharge high-temperature fusion slag (including steel-making molten steel slag,
Con casting ladle notes recrement, stainless steel molten steel slag etc.) (12) (including the iron content of other meltings and/or zincy lead copper and tin indium cadmium bismuth
Smelting slags of metallicses such as antimony germanium thallium gallium gold and silver nickel chromium triangle etc.), slag mouth (2) is arranged in reduction volatilization smelting furnace (1) side
Or top；The material that charge door (3) is added mainly has：1. by carbon containing and/or iron content and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium
Carbonaceous pelletizing (agglomerate), common pelletizing (agglomerate) made of the one or more metallic element material charge such as gallium gold and silver nickel chromium triangle potassium sodium
And one or more of metals such as particulate material, other iron content and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium
The materials such as elemental substance material (9) (mainly pelletizing and block material etc.), the converter steel clinker for wherein further including recycling, granulated iron,
It the block materials such as the lump ore of the metallic elements such as iron content zincy lead copper and tin gold and silver and the pellet sinter of firing, the oxidation that processes
The block materials such as the block material of the metallicses such as spelter mine and the metallurgical slags such as various iron content and/or zincy lead copper and tin also include playing
Increase SiO2And Al2O3The low-grade high silicon iron ore of acid ingredient effect, tailing, high-silicon high ferro-aluminum ore, high-silicon high aluminium iron content
The high silicon high alumina acid ingredient material such as zincy lead copper and tin gold and silver, 2. lump coal, coke, carbon containing high-silicon high aluminium gangue waste residue etc. are carbon containing
Fuel (10), 3. acidic fluxs material such as silica, cullet, high-silicon high aluminium (11) etc. further includes that processing viscosity coefficient of dross is higher, must
The diluent fluorite being added when wanting；For convenience of operation, efficiency is improved, charge door can install feeding device, feeding device on (3)
Including upper end there are one or multiple feed bins, have valve (or synchronous be furnished with meausring apparatus) under feed bin, under valve tremie pipe connection plus
The materials such as various pelletizings, block material (9) are added in reduction volatilization smelting furnace (1) material mouth (3)；In addition to feeding from feed bin, also may be used
Manually directly feed from charge door (3)；Setting preheating chute (22) or pre- in reduction volatilization smelting furnace (1) or on flue gas pipeline
The heating facilities such as hot elephant trunk (22) are radiated using the interior heat smoke of reduction volatilization smelting furnace (1), to various pelletizings, block in stove is added
The materials such as shape material (9) are preheated and are heated, or using the heat source of external heat, to the objects such as various pelletizings, block material in stove are added
Material (9) is preheated and is heated, to improve the temperature for the various materials being added in stove.
3. a kind of iron content according to claim 1 and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
The materials such as the solid waste of non-ferrous metal element cooperate with continuous processing online with steel-making molten steel slag, separate and recover iron and zinc lead bronze
A kind of process of the non-ferrous metals elemental substances such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, slag, it is characterized in that：By
The one or more metallic element object such as carbon containing and/or iron content and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium
Carbonaceous pelletizing (agglomerate), common pelletizing (agglomerate) is made through mixing in matter material, specifically there is following two class：1., bag filter of blast furnace gases
Dedusting ash (also known as blast furnace dust) (or gas mud) and blast furnace gravitational dust collection ash and coal dust (coke powder, coking, dust removing ash or bastard coal
Mountain flour, the flyash containing carbon residue, cinder powder etc.) etc. carbon containing reducers one or more of materials and iron content and/or containing zinc (with
The lower iron content that is referred to as by iron content and/or containing zinc contains zinc) one or more such as lead bronze tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium
Metallic element non-ferrous metal concentrate, chats, tailing and various non-ferrous metal metallurgy slags, rotary kiln scum, dedusting ash, dedusting
The waste residues such as mud, galvanizing, pyrite cinder, copper ashes, cyanidation gold-extracted carry silver-colored tailings, red mud etc., steel and ferroalloy at wet-leaching slag
Deng the stove dedusting ash of industry, sintering and ironmaking dedusting ash, steelmaking converter (or electric furnace) dedusting sludge (or dedusting ash), iron oxide
One or more of powder such as the iron cements such as skin and reduced iron powder containing zinc, chemical industry, incineration of refuse flyash and various iron containing sludges, iron powder
Material, carbonaceous pelletizing is made through mixing；2., the one or more such as iron content zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium
Metallic element non-ferrous metal concentrate, chats, tailing and various non-ferrous metal metallurgy slags, rotary kiln scum, dedusting ash, dedusting
The waste residues such as mud, galvanizing, pyrite cinder, copper ashes, cyanidation gold-extracted carry silver-colored tailings, red mud etc., steel and ferroalloy at wet-leaching slag
Deng the stove dedusting ash of industry, sintering and ironmaking dedusting ash, steelmaking converter (or electric furnace) dedusting sludge (or dedusting ash), iron oxide
One or more of powder such as the iron cements such as skin and reduced iron powder containing zinc, chemical industry, incineration of refuse flyash and various iron containing sludges, iron powder
Material, the common pelletizing such as iron content zincy lead is made through mixing；The inside autoreduction reaction of the metallic compound of carbon occurs for carbonaceous pelletizing
Required carbonaceous reducing agent carbon molal quantity coefficient of excess need to only reach 1.0~1.3, if the extra carbonaceous reducing agent carbon that supplying is excessive
Other metallic compound reduction reactions and progress carbon burning reaction in element meeting supplementary furnace；Pelletizing (agglomerate) ball press, pelletizing
The mechanical equipments such as machine (cuber, agglomeration machine) are made.
4. a kind of iron content according to claim 1 and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
The materials such as the solid waste of non-ferrous metal element cooperate with continuous processing online with steel-making molten steel slag, separate and recover iron and zinc lead bronze
A kind of process of the non-ferrous metals elemental substances such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, slag, it is characterized in that：Contain
Carbon fuel (exothermic mixture and reducing agent) (10) includes：The carbon containing gangue waste residue of anthracite, bituminous coal, coke, semi-coke, high-silicon high aluminium
And the block material that the carbonaceous materials such as carbon containing blast furnace dust, gravitational dust are made；Flux material (11) includes silica, cullet etc.
SiO2Higher high silicon materials, Al2O3Higher high alumina material.
5. a kind of iron content according to claim 1 and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
The materials such as the solid waste of non-ferrous metal element cooperate with continuous processing online with steel-making molten steel slag, separate and recover iron and zinc lead bronze
A kind of process of the non-ferrous metals elemental substances such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, slag, it is characterized in that：It is logical
Cross air-blast nozzle (top blast, bottom blowing claim spray gun) (4) blasted into stove oxygen-containing gas (13) and/or oxygen-containing gas (13) and it is carbon containing also
Former agent fuel or fine particles containing carbon (14), there are three types of oxygen-containing gas (13)：1. 2. the air for not preheating or preheating is not preheated or is preheated
Oxygen-enriched air 3. oxygen, including First air and Secondary Air oxygen-containing gas, tertiary air oxygen-containing gas；Carbon containing reducer fuel contains
Carbon dust material (14) includes mainly：1. the carbon containing reducers fuel such as coal dust (or coke powder, coking, dust removing ash etc.) 2. producer gas, turn
The various carbonaceous gas such as producer gas, waste oil, liquid reducer fuel 3. powders such as dedusting ash such as carbon containing iron content；It blasts and contains into stove
The mode of carrier of oxygen (13) and carbon containing reducer fuel or fine particles containing carbon (14) has three ways, such as side-blown, top blast and bottom blowing, a kind of
Or various ways combination；Stove internal upper part dead zone tertiary air (19) is automatically drawn into air using suction pressure, also can be by not preheating
Or the air or oxygen-enriched air of preheating provide.
6. a kind of iron content according to claim 1 and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
The materials such as the solid waste of non-ferrous metal element cooperate with continuous processing online with steel-making molten steel slag, separate and recover iron and zinc lead bronze
A kind of process of the non-ferrous metals elemental substances such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, slag, it is characterized in that：Go out
Iron mouth (7) discharge phosphorous molten iron (16), molten iron phosphorus height as Fhigh phosphorus pig iron iron block product, the high nickel chromium triangle of high phosphorus molten iron as nickel chromium triangle
Iron block international sale；When making coverter pig molten iron, after the higher progress dephosphorization treatment of phosphorus molten iron for steel-making, when molten iron copper is higher into
Molten iron is for steel-making after the processing of row decopper(ing), or makees other purposes to dephosphorization and the elements such as decopper(ing) product recycling phosphorus and copper；From slagging tap
(or the slag (15) and molten iron (16) being discharged from tapping hole (7) equally walk through skimming tool and are divided the slag (15) of mouthful (6) discharge
Separate out the slag (15) come) or water quenching at grain slag or air-cooled at clinker, become high grade cement material or conditioned after-pouring at
Devitrified glass, or the other materials such as mineral wool are made, or the slag composition after dephosphorization processing, high-temperature slag are back to use converter and make flux
Cycle stock uses；The enrichment being discharged from bottommost metal mixture outlet (8) contains the metal mixeds such as gold and silver copper and tin bismuth antimony lead
Object (18) carries out other nonferrous smelting separation method processing such as electrorefining, distillation, to separate and recover various metals.
7. a kind of iron content according to claim 1 and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
The materials such as the solid waste of non-ferrous metal element cooperate with continuous processing online with steel-making molten steel slag, separate and recover iron and zinc lead bronze
A kind of process of the non-ferrous metals elemental substances such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, slag, it is characterized in that：Contain
There are the non-ferrous metals element flue dust such as zinc lead indium cadmium germanium thallium gallium silver potassium sodium, (5) is exported through smoke hood, by flue, with flue gas (cigarette
Dirt) dust collecting systems such as dust-precipitator are sucked, it is recycled as being collected in cigarette ash (17) throughout ash bucket, is had using wet-leaching etc.
Color smelts separating treatment mode and is detached, refines the various metallicses of recycling；When flue gas sulfur-bearing is higher, desulfurization is carried out to flue gas
Processing；Reduction volatilization smelting furnace (1) fume collection and cigarette ash (17) are collected, and steel mill itself secondary BOF dedusting system flue gas can be utilized
After dust collecting system makees appropriate reconstruction, gather dust this is incorporated to after the recycling high temperature heat cooling of reduction volatilization smelting furnace (1) fume collection
System recycles various non ferrous metallic material cigarette ashes (17), to reduce investment outlay and reduce operating cost.
8. a kind of iron content according to claim 1 and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
The materials such as the solid waste of non-ferrous metal element cooperate with continuous processing online with steel-making molten steel slag, separate and recover iron and zinc lead bronze
A kind of process of the non-ferrous metals elemental substances such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, slag, it is characterized in that：
The high-temperature flue gas recycling dust pelletizing system setting air preheat stove or air heat exchanger of reduction volatilization smelting furnace discharge preheat air blast
Air or oxygen-enriched air (13) and/or waste heat boiler (or heat exchanger etc.) recovered flue gas heat, air preheat stokehold combustion chamber drum
Enter the combustibles such as CO in combustion air combustion product gases and carry out burning temperature raising, preheats the air from the air blast to stove or oxygen-enriched air (13) of,
Waste heat boiler recovered flue gas heat generates steam or hot water, for power generation or heat supply；The air or oxygen-enriched air of air blast into stove
(13) it is preheated through gather dust recovery system air preheat stove or air heat exchanger of the preheating of reduction volatilization smelting furnace furnace body, high-temperature flue gas,
Or carry out heat exchange preheating through the other energy of steel mill, preheat air blast air or oxygen-enriched air (13) temperature at 100~1200 DEG C.
9. a kind of iron content according to claim 1 and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
The materials such as the solid waste of non-ferrous metal element cooperate with continuous processing online with steel-making molten steel slag, separate and recover iron and zinc lead bronze
A kind of process of the non-ferrous metals elemental substances such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, slag, it is characterized in that：For
Converter life is improved, reduction volatilization smelting furnace (1) furnace body carries out water cooling or air-cooled, and outer steel shell can wrap up coldplate to protect
Refractory material in furnace retaining body and stove, coldplate can be by manufactures such as cast iron or cast steels, and it is cooling water to have water cooling and air cooling way, water cooling
Set, air-cooled is ventilating and cooling plate；When air-cooled, blast air preheating furnace is can access to improve preheating air blast by the air blast of coldplate
Temperature or furnace body shell encased steel plate, the interior ventilation of double-layer plate cavity is air-cooled, it is accessed to the preheating of blast air preheating furnace again,
The air or oxygen-enriched air of preheating blast reduction volatilization smelting furnace (1).
10. a kind of iron content according to claim 1 and/or zincy lead copper and tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium etc.
The materials such as the solid waste of non-ferrous metal element cooperate with continuous processing online with steel-making molten steel slag, separate and recover iron and zinc lead bronze
A kind of process of the non-ferrous metals elemental substances such as tin indium cadmium bismuth antimony germanium thallium gallium gold and silver nickel chromium triangle potassium sodium, slag, it is characterized in that：For
Steel mill production district technique is adapted to, container (such as slag ladle can be used to one or more block converters in a reduction volatilization smelting furnace (1)
Or slag pan) catch the high-temperature fusion slag (12) that converter smelting is poured out, then pour into reduction volatilization smelting furnace (1)；One also
For former volatile smelting stove (1) to a block converter, furnace body sets a slag mouth (2), accepts the molten steel slag (12) of converter discharge；One
For reduction volatilization smelting furnace (1) to two block converters, furnace body can set two slag mouths (2), accept the melting of two block converters discharge respectively
Slag (12)；Reduction volatilization smelting furnace (1) can be mainly designed as fixed according to place situation, may be designed as mobile etc.
It is movable, or can fascinate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527784.1A CN108676942A (en) | 2018-05-18 | 2018-05-18 | The materials such as a kind of iron content and/or zinc lead bronze tin cooperate with processing recovery method with molten steel slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810527784.1A CN108676942A (en) | 2018-05-18 | 2018-05-18 | The materials such as a kind of iron content and/or zinc lead bronze tin cooperate with processing recovery method with molten steel slag |
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| Publication Number | Publication Date |
|---|---|
| CN108676942A true CN108676942A (en) | 2018-10-19 |
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| CN201810527784.1A Pending CN108676942A (en) | 2018-05-18 | 2018-05-18 | The materials such as a kind of iron content and/or zinc lead bronze tin cooperate with processing recovery method with molten steel slag |
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| CN (1) | CN108676942A (en) |
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| CN109834108B (en) * | 2019-03-06 | 2020-04-28 | 江苏尚美环保科技有限公司 | Diversified water-sinking type treatment equipment for chemical experiment medicine waste |
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| CN111074076A (en) * | 2019-11-29 | 2020-04-28 | 唐山鹤兴废料综合利用科技有限公司 | Comprehensive utilization system and method for metallurgical solid waste |
| CN110951972A (en) * | 2019-12-09 | 2020-04-03 | 上海宝田新型建材有限公司 | Method for reducing ironmaking and co-producing calcium-magnesium-aluminum-silicon product by using steel slag |
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| CN111378844A (en) * | 2020-04-27 | 2020-07-07 | 中国恩菲工程技术有限公司 | Method and system for treating copper-containing sludge |
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| CN112267021A (en) * | 2020-09-07 | 2021-01-26 | 钢研晟华科技股份有限公司 | System and method for coprocessing zinc-containing dust and molten steel slag |
| CN112746139A (en) * | 2021-01-01 | 2021-05-04 | 新疆互力佳源环保科技有限公司 | Method for cooperatively treating waste lead-acid storage battery by using liquid steel slag |
| CN112939489A (en) * | 2021-01-28 | 2021-06-11 | 天津水泥工业设计研究院有限公司 | Method for on-line adjusting slagging alkalinity of smelting reduction furnace by utilizing red mud |
| CN112960917A (en) * | 2021-01-28 | 2021-06-15 | 天津水泥工业设计研究院有限公司 | Method for on-line adjusting slagging alkalinity of smelting reduction furnace by using construction waste |
| CN112941324A (en) * | 2021-01-28 | 2021-06-11 | 赵江晨 | Novel process for comprehensively utilizing resources containing heavy metal hazardous wastes |
| CN112746141A (en) * | 2021-02-04 | 2021-05-04 | 北京科技大学 | Method for preparing phosphorus-rich slag by separating iron and phosphorus from steel slag and reoxidizing |
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