CN103589867A - Method and device for treating ironmaking ash, mud and mill tailings by plasma torch heating technology - Google Patents
Method and device for treating ironmaking ash, mud and mill tailings by plasma torch heating technology Download PDFInfo
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- 238000000034 method Methods 0.000 title claims abstract description 63
- 238000005516 engineering process Methods 0.000 title claims abstract description 39
- 238000010438 heat treatment Methods 0.000 title claims abstract description 24
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 133
- 229910052742 iron Inorganic materials 0.000 claims abstract description 54
- 238000003723 Smelting Methods 0.000 claims abstract description 53
- 239000002893 slag Substances 0.000 claims abstract description 53
- 239000007789 gas Substances 0.000 claims abstract description 27
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims abstract description 26
- 238000006722 reduction reaction Methods 0.000 claims abstract description 24
- 239000002994 raw material Substances 0.000 claims abstract description 23
- 239000004566 building material Substances 0.000 claims abstract description 6
- 239000000203 mixture Substances 0.000 claims description 19
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 14
- 229910052799 carbon Inorganic materials 0.000 claims description 13
- 238000006243 chemical reaction Methods 0.000 claims description 12
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 10
- 229910052751 metal Inorganic materials 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 10
- 238000005272 metallurgy Methods 0.000 claims description 10
- 239000010703 silicon Substances 0.000 claims description 10
- 229910052710 silicon Inorganic materials 0.000 claims description 10
- 238000002844 melting Methods 0.000 claims description 9
- 230000008018 melting Effects 0.000 claims description 9
- 238000012545 processing Methods 0.000 claims description 7
- 238000010791 quenching Methods 0.000 claims description 7
- 230000009970 fire resistant effect Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 6
- 238000011084 recovery Methods 0.000 claims description 6
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 5
- 235000008733 Citrus aurantifolia Nutrition 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 5
- 235000011941 Tilia x europaea Nutrition 0.000 claims description 5
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 claims description 5
- 229910002091 carbon monoxide Inorganic materials 0.000 claims description 5
- 238000009833 condensation Methods 0.000 claims description 5
- 230000005494 condensation Effects 0.000 claims description 5
- 238000007599 discharging Methods 0.000 claims description 5
- 239000010436 fluorite Substances 0.000 claims description 5
- 239000002737 fuel gas Substances 0.000 claims description 5
- 239000004571 lime Substances 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 5
- 239000007921 spray Substances 0.000 claims description 5
- 239000010959 steel Substances 0.000 claims description 5
- 230000004927 fusion Effects 0.000 claims description 4
- 238000002203 pretreatment Methods 0.000 claims description 4
- 230000009286 beneficial effect Effects 0.000 claims description 3
- 239000011449 brick Substances 0.000 claims description 3
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- 238000000926 separation method Methods 0.000 description 2
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- CWYNVVGOOAEACU-UHFFFAOYSA-N Fe2+ Chemical compound [Fe+2] CWYNVVGOOAEACU-UHFFFAOYSA-N 0.000 description 1
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- 230000009466 transformation Effects 0.000 description 1
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- 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
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Abstract
The invention relates to a method and a device for treating ironmaking ash (mud) and mill tailings by a plasma torch heating technology. The method comprises the steps that: 1, the powdered ironmaking ash (mud) and the mill tailings are added into a plasma technical smelting furnace after pretreatment and ingredient adjustment; 2, smelting raw materials perform reduction reaction; generated high temperature furnace gas is exhausted from the upper part of a furnace body; molten slag and ferrosilicon or reduced iron can realize slag and iron layering, and flow out from the lower part of the furnace body; 3, the furnace gas exhausted from the plasma technical smelting furnace is dedusted and subjected to waste heat utilization; and 4, after the molten and layered slag, and the ferrosilicon or the reduced iron flowing out of the smelting furnace are chilled, the slag and the iron are further separated; the ferrosilicon serves as a steelmaking raw material; and the slag can be used for building materials. The method and the device employs the plasma torch heating technology to treat the mill tailings, a blank in the field is filled, and the method and the device have positive significances of advancement, high efficiency, full use of resources and environmental protection.
Description
Technical field
The present invention relates to Metal smelting field, more specifically be that a kind of safety and environmental protection is processed the solid waste of Steel Plant's ironmaking generation and the solid waste that Iron Mine quarry produces, and fill part and utilize its composition condition (carbon containing, iron, silicon etc.), produce method and the device of ferro-silicon and reduced iron.
Background technology
China's steel and iron smelting industry is developing rapidly preclude the election, also produces a large amount of iron gray (mud) and mineral processing tailings, is a famous industrial solid waste, land occupied by a large number of stockpiling both have environmental pollution risks and libraries destroyed risk.Meanwhile, the breeze containing in ironmaking ash (mud), coke powder and ground flux etc. is again-a little useful compositions (iron content approximately 35%, carbon containing approximately 40%, also Han You ?etc. non-ferrous metal composition); And remove in some beneficiation tailing, contain iron, outside carbon, go back the silicon that Han You More is many.As treated as the resource that can again utilize smelting iron ash (mud) and beneficiation tailing, safety and environmental protection is processed and is carried out resource recovery, not only can turn waste into wealth and create new economic benefit, and protection of the environment is had to very large meaning:
For solve ironmaking ash (mud) that steel industry produces this-the difficult problem of environmental protection, state Inner has done a lot of effort outward.Current test (demonstration) case be substantially with carbonaceous pelletizing mode smelt iron or Dui Han ?do reduction calcining after dust moulding, Hui Shou ?and make prereduced burden (for steel-making).Its technique all exists and raw materials for metallurgy pressure ball and moulding will will be forged to baked and prereduction in 1 stove, then by producing metallized furnace charge, is transferred to the problem of doing slag iron melting separation in another 1 stove.Not only reaction is not continuous, complex processes and plant equipment, production efficiency Gao, also produce dust contamination and molding pressure the ball, but not direct and convenient way of recycling; problems these technical deficiencies and therefore on the process leading to the above process - has been unable to continue to promote.And for iron content, carbon, the beneficiation tailing of the compositions such as silicon, the processing that also See is not relevant and the Case Report of the utilization of resources, still belong to blank.Therefore, develop processing ironmaking ash (mud) and beneficiation tailing that make new advances and more advanced and applicable, and can fill part utilization wherein method and the device of contained useful resources, become smelting iron and steel and iron ore Bian and selected industry solid waste processing anxious to be resolved difficult.
Summary of the invention
The present invention overcomes the deficiencies of the existing processes, thus providing - kind of production processes and equipment is relatively simple, Gao production efficiency, no dust pollution, recycling and processing of iron directly facilitate ash (mud) and mineral processing tailings method and apparatus.
In order to realize object of the present invention, following technical scheme is proposed:
A method for using plasma torch heat treated ironmaking ash, mud and beneficiation tailing, comprises the step of carrying out in the following order:
1) by powdery ironmaking ash, mud with beneficiation tailing is done pre-treatment and to carbon, iron, after the amount of silicon composition and fluorite or lime is adjusted, directly joins and adopt in plasma technology smelting furnace as raw materials for metallurgy;
2) there is reduction reaction in raw materials for metallurgy in plasma technology smelting furnace, powder raw material reaction produce contain carbon monoxide composition or Han You ? high-temperature furnace gas, from upper of furnace body, discharge; Under furnace high-temperature condition, the slag of molten state and ferro-silicon Ge reduced iron are realized the layering of slag iron and are flowed out from body of heater 1 bottom; Reaction is continuous, and reduction reaction and the melting of slag iron are separated in stove and complete; It in stove, is the operational condition of normal pressure or micro-negative pressure; Plasma torch provides thermal source for reduction reaction, and described plasma torch is in stove, to spray into the gas-jet of high temperature and high heat density for reduction reaction provides thermal source, and direct heating and fusion smelting raw material are guaranteed to hold the bath temperature of furnace bottom and impel the layering of slag iron;
3) furnace gas of discharging from plasma technology smelting furnace through dedusting and/or reclaim condensation get off ?element, furnace gas is used as fuel gas with low heat value;
4) molten state flowing out from plasma technology smelting furnace and the slag of layering and ferro-silicon Ge reduced iron are after Quench, and slag iron enters-walk separated, and ferro-silicon is as product, and reduced iron is as steelmaking feed, and slag is for building materials; The molten state flowing out from plasma technology smelting furnace and the slag of layering and ferro-silicon Ge reduced iron are after Quench, and slag iron can enter-walk separation, and ferro-silicon can be used as product and reduced iron can be used as steelmaking feed.
In step 3), the furnace gas treatment system of plasma technology smelting furnace is to operate under airtight normal pressure or micro-condition of negative pressure, guarantees safety, is beneficial to protection of the environment and the recovery to ?metal.
The invention allows for a kind of using plasma torch heating technique and process the plasma torch heats technology smelting furnace of the method for ironmaking ash, mud and beneficiation tailing, comprise upright columnar body of heater 1; The inner side integral body of described body of heater 1 is provided with refractory masses 2; The top of body of heater 1 is provided with charging opening 3; The top of body of heater 1 is provided with furnace gas export 4; The bottom of body of heater 1 is provided with plasma torch 5; The bottom of body of heater 1 is provided with slag iron outlet 6.
Described refractory masses 2 comprises at least fire brick layer, fire-resistant flaggy and the fire-resistant casting bed of material.
Described charging opening 3 comprises 1 axial admission pipe.
Described furnace gas export 4 comprises 2 radially escape pipes.
Described plasma torch 5 comprises 1 group of plasma torch along the circumferential direction.
Described plasma torch 5 is direct current metal anode and untransferable arc plasma gun.
Described slag iron outlet 6 comprises 2 radial discharge pipes.
The method that provided by the invention-kind of Bian processes ironmaking grey (mud) and beneficiation tailing by plasma torch heating technique is with Zhuan Catching-rabbits, both simple flow and energy-conservation and reduce costs, enhance productivity, the dust pollution producing while avoiding again pressure ball and moulding, has protected environment; Present technique is compared by the technique that carbonaceous pelletizing mode is processed ironmaking ash (mud) with existing; saved the operation of pressure ball and moulding; energy-conservation; reduce costs and raise the efficiency; avoided dust pollution; be conducive to solid waste to be processed and the upgrading of protection of the environment technology and the technological transformation that advances Dui Xian You Installed to put, and play a role for changing the style of economic increase of industry and adding the Strong capability of sustainable development.
Accompanying drawing explanation
Fig. 1 is the schema that using plasma torch heating technique of the present invention is processed the method for ironmaking ash (mud).
Fig. 2 is the schematic diagram of plasma technology smelting furnace of the present invention.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with the drawings and specific embodiments, the present invention is described in more detail.
The invention provides a kind of using plasma torch heating technique and process the method for ironmaking ash (mud) and beneficiation tailing, comprise that order is carried out according to the following steps:
1, the powdered iron gray (clay) and pretreatment and beneficiation tailings composition adjustment (carbon, iron, silicon composition and amount of fluorite or lime), the need for pressure the ball and molding materials directly as smelting added to the plasma technology and other specialized structures smelting furnace; both energy efficiency and streamline processes and reduce costs, but also avoid the pressure the ball and dust pollution generated during molding to protect the environment.
2, there is reduction reaction in raw materials for metallurgy in plasma technology smelting furnace, and powder raw material speed of reaction is fast, and the high-temperature furnace gas of generation (contain the compositions such as carbon monoxide, the also Han You having ?) is discharged from upper of furnace body; Under furnace high-temperature condition, the slag of molten state and ferro-silicon Ge reduced iron can be realized the layering of slag iron and flow out from lower portion of furnace body; Reaction is continuous, and reduction reaction and the melting of slag iron are separated in 1 stove and complete; It in stove, is normal pressure (micro-negative pressure) operational condition; Plasma torch provides thermal source for reduction reaction; Plasma torch can be to the gas-jet that sprays into high temperature and high heat density in stove, can direct heating and fusion smelting raw material, and can keep the bath temperature of furnace bottom and impel the layering of slag iron.
The furnace gas of 3, discharging from plasma technology smelting furnace through dedusting and UTILIZATION OF VESIDUAL HEAT IN (as furnace gas Han You ?, also should reclaim condensation get off ?element), can be used as fuel gas with low heat value and be used; Plasma technology smelting furnace and furnace gas treatment system are all normal pressure (micro-negative pressure) conditions, have both guaranteed safety and protection of the environment, also You Li ?etc. the recovery of metal.
4, the molten state flowing out from plasma technology smelting furnace and the slag of layering and ferro-silicon Ge reduced iron are after Quench, slag iron can enter-walk separated, ferro-silicon can be used as product and reduced iron can be used as steelmaking feed, and slag is harmless vitreum material, can be used for building materials.Based on its Cheng Fen Te Dian (carbon containing and iron), can there is reduction reaction and the fusing of slag iron in ironmaking ash (mud), generate reduced iron in plasma technology smelting furnace; Based on its composition (carbon containing, silicon and iron), can in plasma technology smelting furnace, there is reduction reaction and generate ferro-silicon in siliceous beneficiation tailing; All can realize the recycling of resource.
In described step 1), powdery ironmaking ash (mud) and beneficiation tailing are made to pre-treatment and composition adjustment (carbon, iron, the amount of silicon composition and fluorite or lime) after, do not need to do pressure ball and moulding, directly as raw materials for metallurgy, join in the plasma technology smelting furnace of specialized structure; Both simple flow and energy-conservation and reduce costs, enhanced productivity, and the dust pollution producing while avoiding again pressure ball and moulding, has protected environment;
Described step 2) in there is reduction reaction in raw materials for metallurgy in plasma technology smelting furnace, and powder raw material speed of reaction is fast, and the high-temperature furnace gas of generation (contain the compositions such as carbon monoxide, the also Han You having ?) is discharged from upper of furnace body; Under furnace high-temperature condition, the slag of molten state and ferro-silicon Ge reduced iron can be realized the layering of slag iron and flow out from lower portion of furnace body; Reaction is continuous, and reduction reaction and the melting of slag iron are separated in 1 stove and complete; It in stove, is normal pressure (micro-negative pressure) operational condition; Plasma torch provides thermal source for reduction reaction; Plasma torch can be to the gas-jet that sprays into high temperature and high heat density in stove, can direct heating and fusion smelting raw material, and can keep the bath temperature of furnace bottom and impel the layering of slag iron;
The furnace gas of discharging from plasma technology smelting furnace in described step 3) through dedusting and UTILIZATION OF VESIDUAL HEAT IN (as furnace gas Han You ?, also should reclaim condensation get off ?element), can be used as fuel gas with low heat value and be used; Plasma technology smelting furnace and furnace gas treatment system are all airtight normal pressure (micro-negative pressure) operational conditions, have both guaranteed safety and protection of the environment, also Li Yu ?etc. the recovery of metal;
Described step 4) molten state flowing out from plasma technology smelting furnace in and the slag of layering and ferro-silicon Ge reduced iron are after Quench, slag iron can enter-walk separated, ferro-silicon can be used as product and reduced iron can be used as steelmaking feed, and slag is harmless vitreum material, can be used for building materials.Based on its Cheng Fen Te Dian (carbon containing and iron), can there is reduction reaction and the fusing of slag iron in ironmaking ash (mud), generate reduced iron in plasma technology smelting furnace; Based on its composition feature (carbon containing, silicon and iron), can in plasma technology smelting furnace, there is reduction reaction and generate ferro-silicon in siliceous beneficiation tailing; All can realize the recycling of resource.
The present invention also provides a kind of plasma technology smelting furnace of specialized structure, comprises upright cylindrical furnace 1, is arranged on base 7.Furnace body inside integral body is provided with refractory masses 2; Body of heater top is provided with charging opening 3; Upper of furnace body is provided with furnace gas export 4, and lower portion of furnace body is provided with plasma torch 5; Bottom of furnace body is provided with melting slag iron outlet 6.
Described furnace body inside integral body is provided with refractory masses 2, comprises the fire brick layer of at least 3 kinds of different performances, fire-resistant flaggy and the fire-resistant casting bed of material.
Described body of heater top is provided with charging opening 3, comprises 1 axial admission pipe.
Described upper of furnace body is provided with furnace gas export 4, comprises 2 radially escape pipes.
Described lower portion of furnace body is provided with plasma torch 5, comprises and along the circumferential direction has 1 group of plasma torch.
Described plasma torch is direct current metal anode and untransferable arc plasma gun.
Described bottom of furnace body is provided with melting slag iron outlet 6, comprises 2 radial discharge pipes.
Method provided by the invention, powdery ironmaking ash (mud) and beneficiation tailing are done after pre-treatment and composition adjustment (carbon, iron, the amount of silicon composition and fluorite or lime), do not need to do pressure ball and moulding, directly as raw materials for metallurgy, join in the plasma technology smelting furnace of specialized structure; Compare by the technique that carbonaceous pelletizing mode is processed ironmaking ash (mud) with existing; in flow process of the present invention, saved pressure ball and molding procedure, both simple flow and energy-conservation and reduce costs, enhanced productivity; dust pollution while also having avoided pressure ball and moulding, has protected environment.
Provided by the invention-kind of Bian processes the method for ironmaking ash (mud) and beneficiation tailing by plasma torch heating technique, in plasma technology smelting furnace, there is reduction reaction in raw materials for metallurgy, powder raw material speed of reaction is fast, the high-temperature furnace gas producing (contain the compositions such as carbon monoxide, the also Han You having ?) is discharged from upper of furnace body; Under furnace high-temperature condition, the slag of molten state and ferro-silicon Ge reduced iron can be realized the layering of slag iron and flow out from lower portion of furnace body; Reaction is continuous, and reduction reaction and the melting of slag iron are separated in 1 stove and complete; It in stove, is normal pressure (micro-negative pressure) operational condition; Plasma torch provides thermal source for reduction reaction; Compare by the technique that carbonaceous pelletizing mode is processed ironmaking ash (mud) with existing; in flow process of the present invention, filling part utilizes the plasma torch can be to the advantageous feature that sprays into high temperature and high heat density gas-jet in stove; only with 1 stove, can complete reduction reaction separated with the melting of slag iron; both simple flow, reduced costs and enhanced productivity; Also innovate Bian and process beneficiation tailing by plasma torch heating technique, fill up this field blank.
Provided by the invention-kind of Bian processes the method for ironmaking ash (mud) and beneficiation tailing by plasma torch heating technique, the furnace gas of discharging from plasma technology smelting furnace through dedusting and UTILIZATION OF VESIDUAL HEAT IN (as furnace gas Han You ?, also should reclaim condensation get off ?element), can be used as fuel gas with low heat value and be used; Compare by the technique that carbonaceous pelletizing mode is processed ironmaking ash (mud) with existing; the reaction of flow process of the present invention is continuous and transports without intermediates; total system is all airtight normal pressure (micro-negative pressure) operational condition; not only guaranteed safety but also protection of the environment, also You Li ?etc. the recovery of metal.
A kind of Bian provided by the invention processes the method for ironmaking ash (mud) and beneficiation tailing by plasma torch heating technique; the molten state flowing out from plasma technology smelting furnace and the slag of layering and ferro-silicon Ge reduced iron are after Quench; slag iron can enter-walk separated; ferro-silicon can be used as product and reduced iron can be used as steelmaking feed; slag is harmless vitreum material, can be used for building materials; Compare by the technique that carbonaceous pelletizing mode is processed ironmaking ash (mud) with existing, the product of flow process of the present invention is the end product reduced iron that degree of metalization degree is the highest, resource way of recycling directly and efficiency high; The present invention goes back adoption of innovation plasma torch heating technique and processes siliceous beneficiation tailing and produce ferro-silicon product, has both filled up this field blank, also makes ore dressing field boundary solid waste turn waste into wealth equally, the new approach of developing resource reutilization and protection of the environment.
Above-described specific embodiment; object of the present invention, technical scheme and beneficial effect have been carried out to further detailed description; institute is understood that; the foregoing is only specific embodiments of the invention; be not limited to the present invention; within the spirit and principles in the present invention all, any modification of making, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (9)
1. a method for using plasma torch heat treated ironmaking ash, mud and beneficiation tailing, comprises the step of carrying out in the following order:
1) by powdery ironmaking ash, mud with beneficiation tailing is done pre-treatment and to carbon, iron, after the amount of silicon composition and fluorite or lime is adjusted, directly joins and adopt in plasma technology smelting furnace as raw materials for metallurgy;
2) there is reduction reaction in raw materials for metallurgy in plasma technology smelting furnace, powder raw material reaction produce contain carbon monoxide composition or Han You ? high-temperature furnace gas, from upper of furnace body, discharge; Under furnace high-temperature condition, the slag of molten state and ferro-silicon Ge reduced iron are realized the layering of slag iron and are flowed out from body of heater 1 bottom; Reaction is continuous, and reduction reaction and the melting of slag iron are separated in stove and complete; It in stove, is the operational condition of normal pressure or micro-negative pressure; Plasma torch provides thermal source for reduction reaction, and described plasma torch is in stove, to spray into the gas-jet of high temperature and high heat density for reduction reaction provides thermal source, and direct heating and fusion smelting raw material are guaranteed to hold the bath temperature of furnace bottom and impel the layering of slag iron;
3) furnace gas of discharging from plasma technology smelting furnace through dedusting and/or reclaim condensation get off ?element, furnace gas is used as fuel gas with low heat value;
4) molten state flowing out from plasma technology smelting furnace and the slag of layering and ferro-silicon Ge reduced iron are after Quench, and slag iron enters-walk separated, and ferro-silicon is as product, and reduced iron is as refining Steel raw material, and slag is for building materials; The molten state flowing out from plasma technology smelting furnace and the slag of layering and ferro-silicon Ge reduced iron are after Quench, and slag iron can enter-walk separated, and ferro-silicon can be used as product and reduced iron can be used as and refines Steel raw material.
2. the method for using plasma torch heat treated according to claim 1 ironmaking ash, mud and beneficiation tailing; it is characterized in that; in step 3); the furnace gas treatment system of plasma technology smelting furnace is to operate under airtight normal pressure or micro-condition of negative pressure; guarantee safety, be beneficial to protection of the environment He Dui ?the recovery of metal.
3. right to use requires the plasma torch heats technology smelting furnace of the method for using plasma torch heating technique processing ironmaking ash, mud and beneficiation tailing described in 1 or 2, comprises upright columnar body of heater (1); The inner side integral body of described body of heater (1) is provided with refractory masses (2); The top of body of heater (1) is provided with charging opening (3); The top of body of heater 1 is provided with furnace gas export (4); The bottom of body of heater (1) is provided with plasma torch (5); The bottom of body of heater (1) is provided with slag iron outlet (6).
4. plasma torch heating technique smelting furnace according to claim 3, is characterized in that, described refractory masses (2) comprises at least fire brick layer, fire-resistant flaggy and the fire-resistant casting bed of material.
5. plasma torch heating technique smelting furnace according to claim 4, is characterized in that, described charging opening (3) comprises 1 axial admission pipe.
6. plasma torch heating technique smelting furnace according to claim 5, is characterized in that, described furnace gas export (4) comprises 2 radially escape pipes.
7. plasma torch heating technique smelting furnace according to claim 6, is characterized in that, described plasma torch (5) comprises 1 group of plasma torch along the circumferential direction.
8. plasma torch heating technique smelting furnace according to claim 7, is characterized in that, described plasma torch (5) is direct current metal anode and untransferable arc plasma gun.
9. plasma torch heating technique smelting furnace according to claim 8, is characterized in that, described slag iron outlet (6) comprises 2 radial discharge pipes.
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| CN110029227A (en) * | 2019-05-15 | 2019-07-19 | 东北大学 | The method for producing ferro-silicon-aluminium as raw material plasma jet feeding using waste refractory materials |
| CN111549195A (en) * | 2020-05-12 | 2020-08-18 | 江苏柏瀚环境科技有限公司 | Process and system for reducing iron ore powder by plasma rapid gasification and pyrolysis of medical garbage |
| CN112427646A (en) * | 2020-12-02 | 2021-03-02 | 山东理工大学 | Method for preparing magnetic abrasive material by supercritical carbon dioxide assisted plasma spray |
| CN113245347A (en) * | 2021-05-10 | 2021-08-13 | 武汉理工大学 | Impurity removing method for solid waste of silicate and application thereof |
| CN114735938A (en) * | 2022-04-29 | 2022-07-12 | 武汉理工大学 | Method for preparing microcrystalline glass by using electromagnetic induction furnace |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5579705A (en) * | 1993-03-08 | 1996-12-03 | Kabushiki Kaisha Kobe Seiko Sho | Plasma furnace and a method of operating the same |
| EP0757972A2 (en) * | 1993-03-08 | 1997-02-12 | Kabushiki Kaisha Kobe Seiko Sho | Plasma furnace |
| CN1177013A (en) * | 1996-09-18 | 1998-03-25 | 中国科学院力学研究所 | Method and apparatus for smelting high melting metal by plasma |
| CN1186522A (en) * | 1995-05-03 | 1998-07-01 | 菲利普环境公司 | Process for recovering metals from iron oxide bearing masses |
| CN1295134A (en) * | 1999-11-08 | 2001-05-16 | 武汉科技大学 | Direct stainless steel smelting method and smelter by AC plasma melting to reduce concentrated nichromite |
| CN1298033A (en) * | 1999-11-24 | 2001-06-06 | 武汉科技大学 | AC plasma melting reduction process and equipment for direct smelting of ferroalloy with very low carbon content |
| CN202274732U (en) * | 2011-10-17 | 2012-06-13 | 武汉金拜尔工程设备有限公司 | Erect cylindrical plasma torch calcium carbid furnace |
| CN102816892A (en) * | 2011-06-10 | 2012-12-12 | 冯小军 | Method for smelting metal waste into steel |
-
2013
- 2013-11-20 CN CN201310583812.9A patent/CN103589867B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5579705A (en) * | 1993-03-08 | 1996-12-03 | Kabushiki Kaisha Kobe Seiko Sho | Plasma furnace and a method of operating the same |
| EP0757972A2 (en) * | 1993-03-08 | 1997-02-12 | Kabushiki Kaisha Kobe Seiko Sho | Plasma furnace |
| CN1186522A (en) * | 1995-05-03 | 1998-07-01 | 菲利普环境公司 | Process for recovering metals from iron oxide bearing masses |
| CN1177013A (en) * | 1996-09-18 | 1998-03-25 | 中国科学院力学研究所 | Method and apparatus for smelting high melting metal by plasma |
| CN1295134A (en) * | 1999-11-08 | 2001-05-16 | 武汉科技大学 | Direct stainless steel smelting method and smelter by AC plasma melting to reduce concentrated nichromite |
| CN1298033A (en) * | 1999-11-24 | 2001-06-06 | 武汉科技大学 | AC plasma melting reduction process and equipment for direct smelting of ferroalloy with very low carbon content |
| CN102816892A (en) * | 2011-06-10 | 2012-12-12 | 冯小军 | Method for smelting metal waste into steel |
| CN202274732U (en) * | 2011-10-17 | 2012-06-13 | 武汉金拜尔工程设备有限公司 | Erect cylindrical plasma torch calcium carbid furnace |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110004300A (en) * | 2019-05-15 | 2019-07-12 | 东北大学 | The method for producing Antaciron as raw material plasma jet feeding using aluminium ash |
| CN110029227A (en) * | 2019-05-15 | 2019-07-19 | 东北大学 | The method for producing ferro-silicon-aluminium as raw material plasma jet feeding using waste refractory materials |
| CN111549195A (en) * | 2020-05-12 | 2020-08-18 | 江苏柏瀚环境科技有限公司 | Process and system for reducing iron ore powder by plasma rapid gasification and pyrolysis of medical garbage |
| CN112427646A (en) * | 2020-12-02 | 2021-03-02 | 山东理工大学 | Method for preparing magnetic abrasive material by supercritical carbon dioxide assisted plasma spray |
| CN113245347A (en) * | 2021-05-10 | 2021-08-13 | 武汉理工大学 | Impurity removing method for solid waste of silicate and application thereof |
| WO2022237705A1 (en) * | 2021-05-10 | 2022-11-17 | 武汉理工大学 | Impurity removal method for silicate solid waste and use thereof |
| JP2023533270A (en) * | 2021-05-10 | 2023-08-02 | 武漢理工大学 | Method for removing impurities from silicate solid waste and its application |
| JP7492794B2 (en) | 2021-05-10 | 2024-05-30 | 武漢理工大学 | Method for removing impurities from silicate solid waste and its application |
| EP4338858A4 (en) * | 2021-05-10 | 2025-09-03 | Univ Wuhan Tech | METHOD FOR REMOVAL OF CONTAMINANTS FROM SILICA SOLID WASTE AND USE THEREOF |
| CN114735938A (en) * | 2022-04-29 | 2022-07-12 | 武汉理工大学 | Method for preparing microcrystalline glass by using electromagnetic induction furnace |
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