CN106799387A - The method for preparing derivatived fuel RDF, biological organic fertilizer and inorganic building material as raw material with rubbish - Google Patents
The method for preparing derivatived fuel RDF, biological organic fertilizer and inorganic building material as raw material with rubbish Download PDFInfo
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- CN106799387A CN106799387A CN201611193140.0A CN201611193140A CN106799387A CN 106799387 A CN106799387 A CN 106799387A CN 201611193140 A CN201611193140 A CN 201611193140A CN 106799387 A CN106799387 A CN 106799387A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE NOT OTHERWISE PROVIDED FOR
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
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- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B14/00—Use of inorganic materials as fillers, e.g. pigments, for mortars, concrete or artificial stone; Treatment of inorganic materials specially adapted to enhance their filling properties in mortars, concrete or artificial stone
- C04B14/02—Granular materials, e.g. microballoons
- C04B14/022—Carbon
-
- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
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- C—CHEMISTRY; METALLURGY
- C05—FERTILISERS; MANUFACTURE THEREOF
- C05F—ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE
- C05F9/00—Fertilisers from household or town refuse
- C05F9/04—Biological compost
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- C—CHEMISTRY; METALLURGY
- C10—PETROLEUM, GAS OR COKE INDUSTRIES; TECHNICAL GASES CONTAINING CARBON MONOXIDE; FUELS; LUBRICANTS; PEAT
- C10L—FUELS NOT OTHERWISE PROVIDED FOR; NATURAL GAS; SYNTHETIC NATURAL GAS OBTAINED BY PROCESSES NOT COVERED BY SUBCLASSES C10G OR C10K; LIQUIFIED PETROLEUM GAS; USE OF ADDITIVES TO FUELS OR FIRES; FIRE-LIGHTERS
- C10L5/00—Solid fuels
- C10L5/40—Solid fuels essentially based on materials of non-mineral origin
- C10L5/46—Solid fuels essentially based on materials of non-mineral origin on sewage, house, or town refuse
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
- Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/10—Biofuels, e.g. bio-diesel
-
- 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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Engineering & Computer Science (AREA)
- Ceramic Engineering (AREA)
- Structural Engineering (AREA)
- Materials Engineering (AREA)
- Civil Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Molecular Biology (AREA)
- Oil, Petroleum & Natural Gas (AREA)
- Processing Of Solid Wastes (AREA)
Abstract
The invention discloses a kind of method from derivatived fuel RDF, biological organic fertilizer and inorganic building material is prepared as raw material with rubbish, its step such as including the sorting of rubbish and the preparation of broken, trommelling, the preparation of derivatived fuel RDF, biofermentation dehydration, biological organic fertilizer and inorganic building material, derivatived fuel RDF, biological organic fertilizer and inorganic building material are disposably prepared as raw material with high humidity mixed city garbage, waste resources is made full use of, is reduced environmental pollution and energy consumption, thoroughly realizes that garbage disposal is innoxious.
Description
Technical field
The present invention relates to technical field of municipal refuse treatment, specifically disposable as raw material with high humidity mixed city garbage
The method for preparing derivatived fuel RDF, biological organic fertilizer and inorganic building material.
Background technology
In traditional trash processing way, sanitary landfill method：Because floor space is big, processing cost is high, wastes a large amount of soils
Resource, and applied value is gradually reduced；Composting process：Because organic matter utilization not exclusively, fertilizer complicated, minimizing is smaller etc.
Factor, will progressively be eliminated；The burning of rubbish is innoxious because its many particular advantages having will turn into domestic waste
The main flow for the treatment of.It is mainly manifested in：1st, rubbish after burning disposal, utterly destroy by the pathogen in rubbish, is produced in combustion process
Raw pernicious gas and flue dust reaches emission request after treatment, and innoxious degree is high.2nd, rubbish after burning can loss of weight 80%,
Volume reduction more than 90%, reduced training is good, saves a large amount of soils.Tail gas, heat energy can fully be reclaimed and utilized.
But limited by component of refuse, incinerator and the output of heat and power system heat energy are low with the rate of recovery, operating cost is big, generating
High cost, while the influence of the factor such as tail vapour and slag emission environmental protection index are poor, treatment cost is high, the popularization and application of this technology compared with
It is difficulty.
The original of good effect is not obtained in the numerous engineering practices at home of many international waste disposal methods
Because：Influenceed by consumption habit and environmental consciousness, the rubbish of external most countries is delivered and collection method is classification and connects
Receive, the rubbish before treatment facility is entered, by good classification, while being influenceed the food waste and swill in rubbish by habits and customs
The less moisture of amount and putrescible matter of pin class material are relatively low, packed specification, for comprehensive reutilization creates good condition.
And the collection method of Chinese rubbish is mixing and receives, the amount of food waste and hogwash class material in rubbish is higher, water
Divide and putrescible matter is higher, packed lack of standardization, raw refuse is almost that " bag in bag " form is delivered, and material composition is answered in bag
Miscellaneous to classify, so we lead to and are called " high humidity composting " in field of environmental engineering, it possesses following characteristic：
1. mixing receives complicated component, and bagged articles content is high, and conventional method normally cannot effectively classify；
2. moisture is big：Average moisture 50%, limit moisture is up to 70%；Calorific value is low：Food waste, dregs class content are higher, put down
50% is accounted for, separation is larger with dehydration difficulty, and treatment energy consumption is higher；
3. easily corruption content of material is higher, deals with improperly and easily causes seriously secondary pollution, while the recovery profit of rubbish
Security and commodity with product is poor, and its typical composition see the table below：
Typical composition statistics list (table one, unit of Chinese rubbish：Weight %)
With 2005, Shanghai and Nanjing, Nanning, the ground of Chongqing four typical case's component content took the knot of integrated value to the list of above composition
Really.
In sum because three kinds of conventional waste disposal methods have larger defect in implementation of China, so in recent years
Research and engineering application practice in, the country occur in that some prepare derivatived fuel, inorganic building material and pottery with rubbish as raw material
The technique and method of grain, it is intended that more make full use of waste resources, more fully process rubbish.
Chinese patent 200510021985.7 discloses a kind of preparation method of city refuse incineration furnace granular fuel：The work
With Chinese high humidity composting as raw material, after broken removal hard material is sorted in mechanization, remaining part all passes through skill
Rod shape fuel is squeezed into after crushing/dewatering treatment.The fuel is mainly used in the pretreatment of raw material operation of all refuse-burning plants, by
Then high humidity composting is converted into specification granular fuel, is effectively improved calorific value, change incineration firing mode, improved
Rubbish thermoelectricity fan-out capability 40-50%, the zero padding for realizing garbage disposal is buried.But, the technology is mainly used in all rubbish
The pretreatment of raw material operation in power plant, but because garbage power project investment is big, disposal ability is big, and required quantity of refuse is especially big,
Therefore be not suitable for using for small and medium-sized cities, its restricted application；In addition due to complicated component, it is preserved the fuel for being produced
It is harsh with burning condition, it is not suitable for general industry boiler.
Chinese patent 02128993.X discloses a kind of solid fuel of utilization municipal refuse production high heat value and low pollution
Preparation method：The technique extracts film therein, bag, piece with Chinese high humidity composting as raw material after various methods are sorted
Shape waste plastics, heated bunching into irregular bar, it is block-shaped after be ground into little particle, then with the bamboo and wood system that sub-elects in rubbish
The crushed material of product, chemical ＆ blended fabric and shell class material is mixed and is rolled, and is made flat spherical fuel.The fuel value is higher,
Cleanliness factor is good, it is adaptable to which general industry boiler, application range of products is wider.But, the technology of garbage disposal is imperfect, reclaims not
Thoroughly, the easy corrupt substance of high humidity for accounting for total amount 70% is not utilized effectively, and surplus materials is processed according to a conventional method, high cost
And it is also easy to produce secondary pollution.
Chinese patent 99101469.3 discloses a kind of municipal refuse haydite and its production method：It is with high humidity composting
Raw material, by sorting, removal plastics, glass and other firm materials are crushed by drying, selection by winnowing, according to rubbish specifically into
Divide the clay for adding 5-15%, stir, then balling-up of pelletizing dries, and is calcined expanded into haydite.But, the garbage disposal
Technology is imperfect, reclaims not thoroughly, and a large amount of aqueous materials more than 50% are present, and raw material stoving is relatively costly, in ceramic product
Organic matter is higher, and the intensity for being calcined expanded rear haydite is smaller, influences the scope of application, and material composition is complicated in addition, roasting process tail
Gas discharge index is poor, pollutes environment.
Chinese patent 02109384.9 discloses the production technology and its equipment that a kind of utilization rubbish waste residue produces haydite：With
Composting is one of raw material, accounts for the 50-80% (depending on the content of organic matter in rubbish depending on) of total dosage, rubbish by screening,
Crush, carry out interworking with the flyash (or shale) of the 20-50% for accounting for total dosage afterwards and stir after granulating, be calcined it is expanded into
Haydite.But, rubbish is used as one of haydite raw materials for production, and consumption is small, because rubbish average moisture content is higher than 50%, produces
Journey is relatively costly, and material composition complexity roasting process exhaust emissions index is poor in addition, pollutes environment.
Chinese patent 02112598.8 discloses the method and retort of a kind of producing active carbon from municipal refuse：Its basic work
Skill be first by domestic waste after coarse crushing again through selection by winnowing, screening, removal rubbish in incombustibility material, then will have
Machine material part is through chopping, broken or crushing, then drying and dewatering is to 15-20%, and it is special that this raw material enters after being squeezed into block
Structure retort carbonization-activation, is made activated carbon (semifinished product).But, the technology of garbage disposal is imperfect, reclaims not thoroughly, rubbish
Incombustibility material in rubbish is not fully recycled, and a large amount of aqueous materials more than 50% are directly dried, raw material stoving
Relatively costly, refuse classification technique imperfection, because a certain amount of inorganic constituents is present in finished product, makes activated carbon product grade
Low, the market scope of application is limited.
Chinese patent 93114051.X discloses a kind of method that refuse classification separates production activated carbon：Rubbish is through disintegrating machine
Carry out dried process after broken, vibrations screening, then carry out the methods such as selection by winnowing, electromagnetic separation, electric network seizure to enter garbage drying
Row sorting, the activated carbon obtained through said process makes raw material, uniformly mixes with hydrochloric acid and liquor zinci chloridi after crushed, enters
Charcoal activation procedure processes to obtain semi-finished product, and semi-finished product must meet national standard by washing dregs, drift chlorine treatment after dries pulverizing
Activated carbon products.But, the technology of garbage disposal is imperfect, reclaims not thoroughly, and the incombustibility material in rubbish is had
Effect is recycled, and a large amount of aqueous materials more than 50% are directly dried, and raw material stoving is relatively costly, and refuse classification technique is not complete
Kind, assorting room complex process, equipment is complicated, and operating cost is high.
Because conventional garbage process for reclaiming technology has various technological deficiencies, the popularization that directly affects its technology should
With and effectiveness of operation, be mainly manifested in：
1. Integration ofTechnology is poor, and selective recovery is only carried out to rubbish, and production product category is single, is so limited, existing
Technology shows in engineering application, and scale is smaller, and cost recovery is high, after refuse classification the treatment disposal costs of residue compared with
Height, production process produces secondary pollution, and resource and recycling level are low, and environmental protection project is not environmentally.
2. refuse classification sorting technology falls behind, and causes this processing apparatus and labour to put into larger, and the efficiency of separation is low, can
Low using substance recovery, purity is low, increases production cost, is made quality of finished lowly, and resource recycling rate is low, very
Hardly possible embodies and reclaims benefit.
3. the working process of pair raw material for sub-electing uses the technique first dried and crush afterwards, production process energy equipment to throw
Enter greatly, energy consumption is higher, have impact on the popularization and application of technology.
4. process of manufacture does not consider the potential danger of various pathogenic microbes in rubbish to operating personnel, health and
Safety condition is poor.
Based on above-mentioned analysis, for the characteristic of Chinese high humidity composting, using process for comprehensively treating to different in rubbish
Material carry out classification recycling, produce different industrial products, by garbage disposal is thoroughly innoxious, resource
Primary study and developing direction as technology of garbage disposal.
The content of the invention
A kind of integrated treatment high humidity mixing city is provided it is an object of the invention to overcome the shortcoming of above-mentioned prior art
The method of rubbish, i.e., the method that derivatived fuel RDF, biological organic fertilizer and inorganic building material are disposably prepared with it as raw material, fully
Using waste resources, reduction environmental pollution and energy consumption, thoroughly realize that garbage disposal is innoxious.
Found by long-term research, for the high humidity mixed city garbage of China, the difficult point of its treatment is how to divide
How class, divided class, only on the premise of classification, is only possible to realize abundant effective utilization of rubbish, therefore, the present invention is proposed
The technical scheme of following classification：
The present invention is effectively classified first according to the characteristics of Chinese urban high-humidity mixed domestic, then according to
The characteristic of classification material uses different processes, is allowed to complete resource, and final output product is three kinds：1st, it is suitable for
The derivatived fuel RDF of Industrial Boiler of the coefficient of excess air more than 1.5 in any combustion process；2nd, it is suitable for agricultural and reaches state
The biological organic fertilizer of family's relevant criterion；3rd, as building material and it is suitable for the inorganic building material that various industries are used.
Concrete technical scheme of the invention is as follows：
The method for preparing derivatived fuel RDF, biological organic fertilizer and inorganic building material as raw material with rubbish, it includes dividing for rubbish
Choosing and broken, trommelling, also comprise the following steps：
(1) preparation of derivatived fuel RDF：
(1-1) semi-moist crushing and drying：By after the oversize of trommelling carries out secondary semi-moist crushing to lumpiness≤
The block of 40mm, is then dried to water content≤20% raw material for obtaining final product derivatived fuel RDF to block again；
(1-2) is granulated：Helping equivalent to rubbish block weight 4-7% is added in block to above-mentioned particle diameter≤40mm
Agent, carries out extruder grain again after being well mixed, form granulated garbage material；
(1-3) is dried：Above-mentioned granulated garbage material is dried between 100-200 DEG C, to water content≤20%, derivative is obtained final product
Fuel RDF；
(2) biofermentation dehydration will be carried out in fermentation tank by the screenings of trommelling, 1-3 cubic metres of sky is pressed daily
Gas/every cubic metre of material is passed through air, and deep aeration is turned over and pushed away at a temperature of 60 DEG C -70 DEG C, fermentation process 16-19 days, until sieve
Untill lower thing water content≤30%；
(3) postsearch screening：Screenings after biofermentation is dehydrated is carried out into postsearch screening by the screen cloth of 6-10 mesh,
Obtain secondary oversize and secondary screenings；
(3-1) prepares inorganic building material：
(3-1-1) steam flow selection by winnowing：Secondary oversize to screening out carries out steam flow selection by winnowing, obtains light fraction as carbon containing
Purity is up to the inorganic building material raw material that more than 91%, water content is 30%；
(3-1-2) semi-moist crushing：With half wet crushing mill by water content 30-35% the semi-moist crushing of inorganic building material raw material
To 6-40 mesh；
The addition and stirring of (3-1-3) activator：Using cartridge type tank diameter is by the inorganic building material raw material after crushing and activates
Agent mixes, and is mixed thoroughly by inorganic building material 100 grams: activator 300-400ml and is blended into the raw material that next step need to be processed；Wherein activator
Preparation method be：After cadmia or zinc gray are mixed, add hydrochloric acid replace to PH be 3-4 when, take the liquid system of 38-42 ° of Baume degrees
Into zinc chloride activation agent；
(3-1-4) charcoal is activated：Above-mentioned raw materials charcoal is activated with vertical revolving carbon activation furnace, removes zinc chloride therein and big
Partial oxidation hydrogen, when in tail vapour zinc chloride Baume degrees position 0 degree when, charcoal activation process terminates, the inorganic building material after must activating；
(3-1-5) pickling desliming：To go out carbon activation furnace material using New Type Cylinder Agitator to add by the 10-18% of activation charcoal weight
Enter hydrochloric acid, acid is carried out with more than 95 DEG C hot water (hot water heating comes from upper operation water cooling process to zinc chloride waste gas cooling treatment)
Boil 7-9 hours, then activation charcoal is transferred in dirt sand agitator, make carbon, husky separation, husky mud sinks to a barrel bottom discharge；
(3-1-6) floats chlorine：The activation charcoal of pickling desliming is stirred in the case where water is continuously replenished using New Type Cylinder Agitator
Drift chlorine to solution pH value is 6-7, the hydrogen chloride in removal activation charcoal；
(3-1-7) centrifugal dehydration：To enter carry out centrifugal dehydration, Jiang Qishui through floating the qualified carbon of chlorine using link-suspended basket centrifuge
Divide and be down to less than 55%；
(3-1-8) inorganic building material is dried：Using cyclone type steam flow drying machine by the material after centrifugal dehydration by sealing spiral shell
In rotation feeding drying tower, clean hot blast is blasted to material heat drying with air blower, caught in cyclone separator and cloth bag trap
Collect finished product inorganic building material on 120 mesh, what is be not collected is the thick charcoal below 120 mesh；
The grinding of (3-1-9) thick carbon is crushed：Using porcelain ball ball mill by the thick carbon below 120 mesh in ball mill, porcelain ball
Reach 120-140 mesh within ball milling 2-6 hours, obtain finished product inorganic building material.
Screenings after biofermentation is dehydrated is carried out postsearch screening by (3-2) by the screen cloth of 6-10 mesh, is screened out
Secondary screenings inorganic content >=80%, as biological organic fertilizer raw material；
(3-2-1) raw material grinds：Using Raymond mill by biological organic fertilizer Raw material processing to granularity 160-240 mesh；
(3-2-2) stirs homogenization：160-240 mesh biological organic fertilizers raw material is stirred using continuity biaxial rneader
Homogeneous, while some functional materials can be added according to circumstances in good time；
(3-2-3) extrusion forming is granulated；The raw material for having stirred is carried out using drum-type Squeezinggranulator orthopedic round as a ball, obtained
To a diameter of 4-25mm particulate materials；
(3-2-4) sintering processes：Drying sintering is carried out to extruded granule using drum-type drying sintering integrated machine,
Drying temperature is 900-1100 DEG C, and into the material moisture 4-7% of sintering process after drying, sintering temperature is 900-1100 DEG C；
(3-2-5) cooling treatment unit：Using drum-type cooler, by 900-1100 DEG C of biological organic fertilizer of temperature,
Cooled down 11-13 minutes under the conditions of tiny structure, obtain final product bio-organic fertilizer product.
Wherein, the auxiliary agent for being added in (1-2) granulation step is that calcium oxide, calcium carbonate or white lime are therein any one
Kind, the particle diameter of the granulated garbage material of formation is 20-30mm, length is 40~100mm, water content≤36%；
Wherein, the temperature employed in (1-3) baking step is 150 DEG C；
Wherein, in order to better profit from resource, by the heavies after (3-1-1) steam flow selection by winnowing for biological organic fertilizer is former
Material, merges with the biological organic fertilizer raw material in (3-2) and uses.
It should be noted that the sorting of rubbish and broken, trommelling are the conventional public affairs classified in advance to rubbish
Know technology.
The sorting of rubbish and it is broken be usually using mechanical sorting and broken, basic requirement be ensure broken bag rate >=
95%, discharge lumpiness≤100mm, and automatic sorting goes out the big part of hardness material and leatherware, clothes etc. such as brick, rubble, metal, battery
Article.
Trommelling is in special rotary screen to the remaining water content after sorting and be broken up to 50% shredding refuse
In the process screened, be configured to for refuse classification into oversize and screenings two parts, the typical case of wherein oversize by it：
By typical composition list (table two, unit of the oversize after above-mentioned treatment：Weight %)
By typical composition list (table three, unit of the screenings after above-mentioned treatment：Weight %)
, it is apparent that oversize has following feature：
Predominantly the not degradable material of paper, plastics and other calorific values occurred frequently, accounts for the 21.45% of total amount, integrated water
Divide 40% or so, rubbish from cooking is substantially free of and the corrupt substance that easily ferments in addition to dregs is adhered to, above-mentioned substance has the characteristics that：
1. can not carry out compost treatment, cannot be degraded in fermentation process, and the secondary dirt of soil is caused after bringing finished product compost into
Dye；
2. the direct recovery value amounts of are small, it is difficult to thoroughly classification, and comprehensive moisture 40% is preserved and poor using sanitary condition, directly
Taking back receipts can not utilize completely, and the rate of recovery is low；
3. calorific values content is high, and the average heat generation value of over dry material is higher than 4500Kcal/kg；
4. possesses the very good material condition of the clean derivatived fuel RDF productions of production, is mainly manifested in：High humidity mixing city
The precursorses of dioxins materials generation are chlorine-bearing compound in incineration process of domestic garbage, consumption habit according to Chinese its
It is mainly derived from the salt of remaining in rubbish from cooking, the maximum minimizing by the way that chlorine-bearing compound can be realized after screening.
These features show, oversize possesses the characteristic as derivatived fuel RDF, but its granularity is larger, water content
Also it is higher, it is necessary to the requirement by can be only achieved derivatived fuel RDF after the method treatment that the present invention is provided；
Secondary semi-moist crushing refers to, in the case where material moisture is higher than 30%, material to be not required to make drying and processing directly to enter
Row pulverizing processing, it is therefore an objective to which above-mentioned oversize is ground into the bulk of lumpiness≤40mm in the case of water content (40%) higher
Thing, beneficial to follow-up drying and processing；
The block to above-mentioned lumpiness≤40mm is dried again, various drying modes can be used, usually using special
High-efficiency tobacco vapour formula stirring drier, dries to water content≤20%, then again to above-mentioned particle diameter at 250-300 DEG C
The auxiliary agent of rubbish block weight 4-7% is added in the block of≤40mm, these auxiliary agents can be calcium oxide, calcium carbonate or ripe stone
Ash it is therein any one, it is well mixed after carry out extruder grain again, granulated garbage material is formed, finally by above-mentioned granulated garbage material
Dried at a temperature of 100 DEG C, to water content≤20%, obtain final product derivatived fuel RDF.
Typical composition according to screenings can be seen that screenings and have the property that：
Screenings accounts for the 77.5% of total amount, is that four class materials are constituted：
1. food waste, pericarp, dish root, etc. putrefactive material；
2. dregs (containing crushed hard material)；
3. the mixture of the fiber substance such as paper scrap, peanut melon seed cases, Chinese medicine slag, tealeaf residue, leaf deadwood；
4. remaining plastics and rag class material.
Composition analysis result is：1. food waste, pericarp, dish root, etc. putrefactive material account for the 50% of screenings mass fraction,
Average moisture 70%；2. dregs (containing hard material has been crushed) accounts for the 23.5% of screenings mass fraction, average moisture 30%；③
The fiber substances such as paper scrap, peanut melon seed cases, Chinese medicine slag, tealeaf residue, leaf deadwood account for the 25% of screenings mass fraction, averagely
Moisture 55%；4. remaining plastics and rag class material account for screenings mass fraction 1.5%, average moisture 15%.
Above material has following feature：Component is 1. because containing a large amount of unrighted acids and protein matter, moisture is larger
Easily ferment, fermentation temperature is high under aerobic condition, high-temperature duration is long with stronger moisture evaporation ability, and fermentation is completed
Product is humic acid material and part long fibre, is the good foaming agent for producing porous expanded ceramsite；2. dregs (contains component
Broken hard material) in containing 50% or so cinder, remaining is dust and ceramics, the mixture of stone metallic substance, its component is complete
Possesses the framework material condition of production bore expanded ceramsite；Component is 3. because a large amount of cellulosic compositions (account for certainly dry biomass point rate
Presence 90%), the good condition with production wood activated charcoal, 4. remaining plastics and rag class material account for screenings matter
An amount point rate 1.5%, because of content low pass after operation treatment be distributed to the raw materials for production of two class products in following process will not be made
Into considerable influence.Wherein, four class materials synthesis moisture 50-60%.Conventional method is difficult to be separated, sorts in the case.
Reason is：1. inter-adhesive between moisture high material, easy adhesion is united in screening plant, in addition food waste, pericarp, dish root,
The fiber such as granularity and paper scrap, peanut melon seed cases, Chinese medicine slag, tealeaf residue, leaf deadwood when not being decomposed etc. putrefactive material
Class material grainses degree cannot quite be separated, and such as easily block sieve aperture using method for sieving, inefficiency, and separation rate is less than 60%.
2. four kinds of material bulk density gaps are smaller in the case of High water cut, poor fluidity, it is impossible to separated using selection by winnowing.Secondly, should
Also contain a large amount of pathogenic microbes in screenings, very easily influence the health of operator.
Therefore, this two classes raw material cannot be effectively separated using conventional separation method, it is necessary to find one kind
Moisture therein is reduced and killed pathogenic microbes by effective method, therefore, the invention provides such as lower section
Method-biofermentation dehydration is carried out to screenings：Fermented through aerobic high-heat, large quantity of moisture can be removed, vapour turning is exposed in depth
Under the conditions of, it is down to less than 35% by the moisture content of its raw material after the fermentation process of 16-19 days；Food waste, pericarp, dish root are completely rotten
It is ripe, all pathogenic microbes total loss activity, the processing of raw material and security performance are preferable.Simultaneously because raw refuse is effective
Sorting is broken and strict screening process, the content of its remaining plastics and rag class material is less than 2%, and operation is former after satisfaction
Material is required.
To by the screenings after biofermentation dewater treatment, its separation just becomes simple and easy to apply.Because this stage is former
The moisture content of material below 35%, so by the screen cloth of 6-10 mesh can by coal ash, dregs and a large amount of hogwash classes become thoroughly decomposed,
The materials such as animal class are separated into secondary screenings；Secondary oversize be mainly fiber, crushed waste paper scrap, peanut melon seed cases,
The long fibrous materials such as Chinese medicine slag, tealeaf residue, leaf deadwood and a small amount of gluing take the hardness material such as soil and pieces of glass, ceramics.
Wherein, the characteristic of the secondary oversize to screening out is analyzed, and it includes these characteristics：Oversize accounts for original rubbish
Rubbish total amount 13-18% or so, fiber, has crushed the long fibres such as waste paper scrap, peanut melon seed cases, Chinese medicine slag, tealeaf residue, leaf deadwood
Material accounts for 15-17%；The viscous hardness material such as soil and pieces of glass, ceramics that takes accounts for 1-3%.Be can be seen that by above constituent analysis
Wherein more than 85% material is long fibrous materials, picks out the viscous hardness material such as soil and pieces of glass, ceramics that takes and possesses production
The condition of wood activated charcoal, so processed according to the following steps, can produce be suitable for that various industries use reach country
The inorganic building material of relevant criterion：
Air-flow selection by winnowing is carried out to secondary oversize, the screen cloth that the screenings after biofermentation is dehydrated is passed through into 6-10 mesh
Carry out postsearch screening, the secondary oversize to screening out carries out air-flow selection by winnowing, i.e., according to material bulk density and size distribution feature,
Air advection speed is in 5-6 meter per seconds, initial steam pressure 200mm water columns in air-classifier；Solid in air-classifier casing
Thing filling rate less than in the case of 20%, can be settled from floating object the light fraction for obtaining be carbon containing purity up to 90% with
On, aqueous 35% active carbon raw material, it is pieces of glass, ceramics etc. to be deposited on the heavies in air-classifier casing；
Wherein, the heavier substances for separate are due to being the first-class raw material for preparing biological organic fertilizer containing substantial amounts of element silicon；Then will be living
Property carbon raw material crushed successively, add activator, charcoal activation, pickling desliming, drift chlorine, centrifugal dehydration, activated carbon drying, thick charcoal
Grinding crush, obtain high-quality inorganic building material product.
Secondary screenings is analyzed, it is found that it has following characteristic：Secondary screenings is coal ash, dregs and has been become thoroughly decomposed
The materials such as a large amount of hogwash classes, animal class, can also be plus in garbage classification system recovery hard material, and inorganic building material production process
Hard material produced by selection by winnowing is reclaimed, and three parts are configured to after collecting：Inorganic content accounts for 80% (ceramics, glass, stone matter material
Accounted for Deng material)；Organic principle accounts for 20%；By typical composition it can be seen that such material accounts for the 10-11% of crude waste total amount.
The composition of above-mentioned substance complies fully with domestic standard biologic porous ceramic grain production feedstock specifications, possesses production biological stephanoporate haydite
Condition, as building material and be suitable for the multiporous biological organic fertilizer raw material that various industries use and use.
It should be noted that above-mentioned three kinds of raw materials are processed into derivatived fuel RDF products, activated carbon products, porous respectively
The method of bio-organic fertilizer product can be using corresponding method in background technology, or other are mentioned in this application
Known method, as long as being obtained in that corresponding raw material, into the method for corresponding product be by these Raw material processings it is a lot,
But, the technical scheme that the present invention is provided is the most preferred technical scheme after checking experiment.
The present invention has the following advantages compared to prior art：
Due to present invention employs conventional separation steps such as the broken, trommellings of sorting, adding special biofermentation and taking off
Water technology, then it is aided with postsearch screening, you can high humidity mixed city garbage is disposably separated into three kinds and meets processing request
Raw material, by respective processing method, can obtain three kinds of products：One is high-grade commodity and the fabulous derivative of security
Fuel RDF；2nd, it is suitable for the inorganic building material product for reaching relevant national standard that various industries are used；3rd, built as new
Material and it is suitable for the multiporous biological organic fertilizer product that various industries are used.Realize that zero padding is buried substantially in the middle of whole processing procedure,
The basic non-secondary pollution thing of processing procedure is produced, and had both been embodied good environmental benefit and has been got back great Reclaiming benefit, is one
Important technology is broken through.Secondly, using the heavies after steam flow selection by winnowing as biological organic fertilizer raw material, more fully make use of money
Source, the technique for separating whole rubbish has obtained perfect, realizes the target of harmless treatment rubbish.
Brief description of the drawings
Fig. 1 is process chart of the invention.
Specific embodiment
The present invention is further described below in conjunction with the accompanying drawings.
Embodiment 1：The method for preparing derivatived fuel RDF, biological organic fertilizer and inorganic building material as raw material with rubbish, including such as
Lower step：
First, the sorting of rubbish and broken：Effective mechanization is carried out to high humidity mixed city garbage to sort and broken, it is ensured that
Broken bag rate >=95%, discharge lumpiness≤100mm, and automatic sorting goes out the hardness material such as brick, rubble, metal, battery and leatherware, clothing
The large piece articles, the wherein large piece article such as leatherware, clothes return system second-time breakage after big part break process such as clothes；
2nd, trommelling：It is in special rolling to the remaining water content after sorting and be broken up to 50% shredding refuse
The process screened in shaft screen, it constitutes refuse classification into oversize and screenings two parts, the typical case of wherein oversize
For：
By typical composition list (table four, unit of the oversize after above-mentioned treatment：Weight %)
By typical composition list (table five, unit of the screenings after above-mentioned treatment：Weight %)
3rd, derivatived fuel RDF is prepared：10 percentage points of oversize refuse moisture reduction can be realized by trommelling,
Average moisture content is 40%, simultaneously because the removal of easily corrupt substance ensure that the calorific value and holding time, applicable model of fuel
Enclose and security.
But oversize granularity is relatively large, is easily wound in drying machine and material dewatering surface area is relatively small, it is unfavorable
In drying and granulate, therefore by the bulk after the oversize of trommelling carries out secondary semi-moist crushing to lumpiness≤40mm
Thing, is then dried, and can use various drying modes, usually using special high-efficiency tobacco vapour formula stirring drier,
Dried to water content≤20% at 250-300 DEG C, obtain final product derivatived fuel RDF raw materials.To make full use of resource, high-efficiency tobacco vapour
The thermal source of formula stirring drier carries out burning supply preferably with self-produced fuel.
It is by the method that above-mentioned derivatived fuel RDF raw materials are prepared into finished product：In rubbish block to above-mentioned particle diameter≤40mm
The calcium oxide of addition rubbish block weight 3%, extruder grain is carried out after being well mixed again, forms particle diameter for 20mm, length are 40
The granulated garbage material of~100mm；Then above-mentioned granulated garbage material is dried at a temperature of 100 DEG C again, to water content≤20%
Untill, derivatived fuel RDF finished products are obtained final product, the operation is completed using the fluidized drying cooling integrated machine of special construction.
The derivatived fuel RDF prepared by said process, is had the following characteristics that：
1. the security commodity of fuel is fabulous：Because the removal fuel of the materials such as the food waste in rubbish has good guarantor
Deposit and performance.The Storage period of 1 year or so, not efflorescence and secondary fermentation can be ensured under normal temperature.Simultaneously because chlorine-bearing compound
Maximum minimizing, the yield of burning generation dioxins materials is minimum, and ignition point is low, and the abundant bed drain purge of burning is less than
15%, deslagging clinker ignition loss is less than 3%, can be better than popular smokeless burning of coal tail directly as building materials raw material, tail gas index
Vapour is discharged, and is suitable for Industrial Boiler of the coefficient of excess air more than 1.5 in any combustion process；
2nd, calorific capacity is effectively improved：Experiment proves that the rubbish of low heat value 1100Kcal/kg is processed through said process
Calorific value is up to 3000Kcal/kg afterwards；
3rd, calorific value stabilization：Through the derivatived fuel RDF after above-mentioned processing, calorific value is basically identical, it is ensured that the operation of boiler is steady
It is qualitative；
4th, because burning condition improves, output is higher than 70% effectively using heat utilization rate；Both environmental benefit is embodied, and most
Limits are realized reclaiming benefit.
Using the derivatived fuel RDF prepared by the present invention, parameters are as follows compared with municipal refuse burns in incinerator
Table：These parameters are published by 2002 Nian8Yue Guangming Daily publishing houses《Municipal waste management and treatment disposal technology standard criterion
Using practice pandect》, Section five of p804-805, the content determination of important technological parameters and economic parameters：
In a word, after method provided by the present invention prepares derivatived fuel RDF, then burned, be to change existing
The optimal path of incinerator working condition, while reducing requirement of the incineration treatment of garbage to raw material, calorific value and moisture content, improves
The scope of application of incineration, reduces energy consumption and cost, improves disposal ability and heat energy output, and greatly reduce tail gas
Caused secondary pollution, is that an important technology is broken through, additionally, can again be opened the incinerator for having stopped production using the technology
It is dynamic to use, greatly save investment.
4th, screenings biofermentation dehydration：To be taken off by carrying out biofermentation in the screenings of trommelling again fermentation tank
Water, deep aeration is turned over and pushed away, fermentation process 16-19 days, untill screenings water content≤30%；Wherein, the regulation of throughput
Carried out according to temperature and moisture situation of change.It the 1-3 days is fermentation process warming-up section, fermentation tank that material enters fermentation process
Interior temperature rises to 75 DEG C by normal temperature, and to improve the reproduction speed of aerobic strain, oxygenation capacity should control the oxygen needed for culture propagation
Scope, need to be passed through air by 1 cubic metres of air/every cubic metre of material daily；It the 3-10 days is fermentation that material enters fermentation process
Process constant temperature zone, temperature is maintained at 60 DEG C -70 DEG C in this stage fermentation groove, to ensure the activity and breeding potential of aerobic strain, plus
Speed evaporation moisture, effectively kills various pathogenic microbes, need to be passed through air by 3 cubic metres of air/every cubic metre of material daily；
It is fermentation process temperature descending section in the 10-15 days to enter fermentation process in material, and temperature is down to normal temperature by 60 DEG C -70 DEG C in fermentation tank,
To ensure cooling rate, accelerate evaporation moisture, need to be passed through air by 0.8 cubic metres of air/every cubic metre of material daily；
5th, the preparation of inorganic building material：Screenings after biofermentation is dehydrated is carried out two by the screen cloth of 6-10 mesh
Secondary screening, the secondary oversize to screening out carries out air-flow selection by winnowing, i.e., according to material bulk density and size distribution feature, air-flow point
Air advection speed is in 5-6 meter per seconds, initial steam pressure 200mm water columns in screening device；Solid content filling in air-classifier casing
In the case that rate is less than 20%, the light fraction for obtaining can be settled from floating object and is carbon containing purity up to more than 90%, contained
The active carbon raw material of water 35%, it is pieces of glass, ceramics etc. to be deposited on the heavies in air-classifier casing.
It is by the method that above-mentioned inorganic building material raw material is made finished product：
1st, crush：With half wet crushing mill to activated carbon raw material moisture in the case of 30-35%, it is semi-moist to be crushed to 6-40
Mesh；
2nd, the addition and stirring of activator：The inorganic building material raw material after crushing is mixed with activator using cartridge type tank diameter
Close, mixed thoroughly by inorganic building material 100 grams: activator 300-400ml and be blended into the raw material that next step need to be processed；The wherein system of activator
Preparation Method is：After cadmia or zinc gray are mixed, add hydrochloric acid replace to PH be 3-4 when, the liquid for taking 38-42 ° of Baume degrees is made chlorine
Change zinc activator；
3rd, charcoal activation：Above-mentioned raw materials charcoal is activated with vertical revolving carbon activation furnace, body of heater upper end there are a large amount of Containing Zinc Chlorides to give up
Gas raises up income cooling tower, when being cooled to below 300 DEG C into falling within zinc chloride liquid hopper under viscous shape liquid, and in condensation
Tower top end is filled with cold water sprays, and less than 50 DEG C of hydrogen chloride vapor are cooled down mist formation, and falling into oblique louver with water flows into
In wastewater disposal basin, activated carbon is transferred to recovery zinc chloride to 0 degree of activation process of tail vapour Baume degrees and terminates, the activation charcoal after must activating；
4th, pickling desliming：To go out carbon activation furnace material using New Type Cylinder Agitator and add salt by the 10-18% of activation charcoal weight
Acid, carries out acid and boils 7- with more than 95 DEG C hot water (hot water heating comes from upper operation water cooling process to zinc chloride waste gas cooling treatment)
9 hours, then activation charcoal is transferred in dirt sand agitator, making carbon, husky separation, husky mud sinks to a barrel bottom discharge；
5th, chlorine is floated：The activation charcoal of pickling desliming is stirred into drift chlorine in the case where water is continuously replenished extremely using New Type Cylinder Agitator
Solution pH value is 6-7, the hydrogen chloride in removal activation charcoal；
Charcoal being activated using New Type Cylinder Agitator and gently floating chlorine under agitation with water, the water of outflow will integrate with precipitation with above-mentioned waste water
Supernatant is taken behind pond, fully precipitation to measure into neutralization reaction grain, plus the abundant reaction precipitation of precipitating reagent such as lime, supernatant is obtained,
After by 30-100 grams of active carbon adsorption under 3/100000ths i.e. waste water per ton, then sand filtration obtains clear water and can be supplied in production up to water supply standard
Recycle；
6th, centrifugal dehydration：To enter carry out centrifugal dehydration through floating the qualified carbon of chlorine using link-suspended basket centrifuge, by its moisture drop
To less than 55%, produced water returns to sedimentation basin, and secondary cycle is utilized；
7th, activated carbon drying：Centrifugal dehydration material is sent into drying tower by sealing screw using cyclone type steam flow drying machine
It is interior, clean hot blast is blasted to material heat drying with air blower, trapped on 120 mesh in cyclone separator and cloth bag trap
It is finished product inorganic building material, what is be not collected is the thick carbon below 120 mesh；
8th, the grinding of thick carbon is crushed：The thick carbon below 120 mesh is fallen into storage by cyclone separator using porcelain ball ball mill
In storehouse, open a sluice gate in the ball mill for flow into 20-25 revs/min, porcelain ball ball milling reaches 120-140 mesh in 2-6 hours, obtains finished product inorganic building material.
Inorganic building material product prepared by this method has the property that：
Because the primary raw material of domestic production inorganic building material is based on coal, thus the national standard of ature of coal Particulate inorganic building materials compared with
Perfect, the production of wooden inorganic building material is and implements, and simply defining the detection method of correlation will now produce for ease of control
Product major control index is compared.
Recycling design ature of coal Particulate inorganic building materials (GB7701.2-87) the key technical indexes and this handicraft product index pair
Compare list
6th, the preparation of biological organic fertilizer raw material：The screen cloth that screenings after biofermentation is dehydrated is passed through into 6-10 mesh
Postsearch screening is carried out, secondary screenings inorganic content >=80% for screening out, as biological organic fertilizer raw material；In order to preferably
Using resource, can be using the heavies after the air-flow selection by winnowing in the preparation of active carbon raw material as biological organic fertilizer raw material.
Above-mentioned biological organic fertilizer raw material is prepared into bio-organic fertilizer product, various methods can be used, such as：
1st, raw material grinds：Using Raymond mill by biological organic fertilizer Raw material processing to granularity 160-240 mesh；
2nd, homogenization is stirred：160-240 mesh biological organic fertilizers raw material is stirred into homogeneous using continuity biaxial rneader,
Some functional materials according to circumstances can be in good time added simultaneously, the silicates for improving intensity are such as added；
3rd, extrusion forming granulation：The raw material that will stir homogeneous using drum-type Squeezinggranulator carry out it is orthopedic round as a ball, with
Ensure the good sintering character of product, be made a diameter of 4-25mm particulate materials；
4th, sintering processes：Drying sintering is carried out to extruded granule using drum-type drying sintering integrated machine, this mistake
Journey is dried and sintering operation forms integrated operation, and barrel front end is drying section, and 900-1100 DEG C of cigarette vapour of high temperature is by cylinder middle part
Spray into, the suction of tail vapour is located at barrel front end, it is therefore an objective to make full use of the waste heat produced by sintering process, enter sintered after drying
The material moisture 4-7% of journey, 900-1100 DEG C of sintering temperature；
5th, cooling treatment unit：Using drum-type cooler；By the raw material after the sintering of 900-1100 DEG C of temperature, micro- negative
Packed after carrying out cooling treatment to normal temperature under the conditions of pressure, cooling procedure does not ftracture to ensure haydite, and cool time should ensure that
11-13 minutes, obtain final product bio-organic fertilizer product.
The bio-organic fertilizer product possesses following characteristic：
Lytag (standard GB/T 2838-81) main performance index is contrasted with this handicraft product index
Claims (6)
1. the method for preparing derivatived fuel RDF, biological organic fertilizer and inorganic building material as raw material with rubbish, it includes the sorting of rubbish
With broken, trommelling, it is characterised in that：Also comprise the following steps：
(1) preparation of derivatived fuel RDF：
(1-1) semi-moist crushing and drying：By after the oversize of trommelling carries out secondary semi-moist crushing to lumpiness≤40mm
Block, block is dried to water content≤20% again then and is obtained final product derivatived fuel RDF raw materials；
(1-2) is granulated：The auxiliary agent equivalent to rubbish block weight 4-7% is added in block to above-mentioned particle diameter≤40mm, is mixed
Extruder grain is carried out after closing uniformly again, granulated garbage material is formed；
(1-3) is dried：Above-mentioned granulated garbage material is dried between 100-200 DEG C, to water content≤20%, derivatived fuel is obtained final product
RDF；
(2) biofermentation dehydration will be carried out in fermentation tank by the screenings of trommelling, daily press 1-3 cubic metres of air/
Every cubic metre of material is passed through air, and deep aeration is turned over and pushed away at a temperature of 60 DEG C -70 DEG C, fermentation process 16-19 days, until screenings
Untill water content≤30%；
(3) postsearch screening：Screenings after biofermentation is dehydrated is carried out into postsearch screening by the screen cloth of 6-10 mesh, is obtained
Secondary oversize and secondary screenings；
(3-1) prepares inorganic building material：
(3-1-1) steam flow selection by winnowing：Secondary oversize to screening out carries out steam flow selection by winnowing, obtains light fraction and is carbon containing purity
Up to the inorganic building material raw material that more than 91%, water content is 30%；
(3-1-2) semi-moist crushing：Inorganic building material raw material with half wet crushing mill by water content in 30-35% semi-moist is crushed to 6-
40 mesh；
The addition and stirring of (3-1-3) activator：The inorganic building material raw material after crushing is mixed with activator using cartridge type tank diameter
Close, mixed thoroughly by inorganic building material 100 grams: activator 300-400ml and be blended into the raw material that next step need to be processed；The wherein system of activator
Preparation Method is：After cadmia or zinc gray are mixed, add hydrochloric acid replace to PH be 3-4 when, the liquid for taking 38-42 ° of Baume degrees is made chlorine
Change zinc activator；
(3-1-4) charcoal is activated：Above-mentioned raw materials charcoal is activated with vertical revolving carbon activation furnace, removes zinc chloride therein and major part
Hydrogen chloride, when 0 degree of zinc chloride Baume degrees position in tail vapour, charcoal activation process terminates, and charcoal after must activate is activated；
(3-1-5) pickling desliming：To go out carbon activation furnace material using New Type Cylinder Agitator and add salt by the 10-18% of activation charcoal weight
Acid, carries out acid and boils 7- with more than 95 DEG C hot water (hot water heating comes from upper operation water cooling process to zinc chloride waste gas cooling treatment)
9 hours, then activation charcoal is transferred in dirt sand agitator, making carbon, husky separation, husky mud sinks to a barrel bottom discharge；
(3-1-6) floats chlorine：The activation charcoal of pickling desliming is stirred into drift chlorine in the case where water is continuously replenished using New Type Cylinder Agitator
It is 6-7, the hydrogen chloride in removal activation charcoal to solution pH value；
(3-1-7) centrifugal dehydration：Centrifugal dehydration will be carried out through floating the qualified activation charcoal of chlorine using link-suspended basket centrifuge, by its moisture
It is down to less than 55%；
(3-1-8) inorganic building material is dried：The material after centrifugal dehydration is sent by sealing screw using cyclone type steam flow drying machine
Enter in drying tower, clean hot blast is blasted to material heat drying with air blower, in cyclone separator and cloth bag trap trapping 120
Finished product inorganic building material on mesh, what is be not collected is the thick charcoal below 120 mesh；
The grinding of (3-1-9) thick carbon is crushed：Using porcelain ball ball mill by the thick carbon below 120 mesh in ball mill, porcelain ball ball milling
Reach 120-140 mesh within 2-6 hours, obtain finished product inorganic building material；
Screenings after biofermentation is dehydrated is carried out postsearch screening by (3-2) by the screen cloth of 6-10 mesh, two for screening out
Secondary screenings inorganic content >=80%, as biological organic fertilizer raw material；
(3-2-1) raw material grinds：Using Raymond mill by biological organic fertilizer Raw material processing to granularity 160-240 mesh；
(3-2-2) stirs homogenization：It is using continuity biaxial rneader that the stirring of 160-240 mesh biological organic fertilizers raw material is equal
Matter；
(3-2-3) extrusion forming is granulated；The raw material for having stirred homogeneous is carried out using drum-type Squeezinggranulator it is orthopedic round as a ball, directly
To particle diameter 4-25mm；
(3-2-4) sintering processes：Drying sintering is carried out to extruded granule using the sintering integrated machine of drum-type drying, is dried
Temperature is 900-1100 DEG C, and into the material moisture 4-7% of sintering process after drying, sintering temperature is 900-1100 DEG C；
(3-2-5) cooling treatment unit：Using drum-type cooler, by 900-1100 DEG C of biological organic fertilizer of temperature, micro-
Cooled down 11-13 minutes under condition of negative pressure, obtain final product bio-organic fertilizer product.
2. method according to claim 1, it is characterised in that the auxiliary agent added in (1-2) granulation step is oxidation
Calcium, calcium carbonate or white lime it is therein any one.
3. method according to claim 1, it is characterised in that in (1-2) granulation step, the granulated garbage material of formation
Particle diameter is 20-30mm, length is 40~100mm.
4. method according to claim 1, it is characterised in that in (1-2) granulation step, the granulated garbage material of formation contains
Water≤35%.
5. method according to claim 1, it is characterised in that the temperature employed in (1-3) baking step is 180 DEG C.
6. method according to claim 1, it is characterised in that by the heavies after (3-1-1) steam flow selection by winnowing be biology
Organic fertilizer raw material, merges with the biological organic fertilizer raw material in (3-2) and uses.
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| CN109078965A (en) * | 2018-09-17 | 2018-12-25 | 东莞理工学院 | Municipal waste resourceful treatment system |
| CN110523469A (en) * | 2019-09-23 | 2019-12-03 | 万元坤 | Wet refuse processing and reutilization system and its method |
| CN110788112A (en) * | 2019-09-29 | 2020-02-14 | 中原环资科技有限公司 | Fine classification and sorting process method for industrial wastes |
| CN111282951A (en) * | 2019-12-27 | 2020-06-16 | 庞强 | Landfill stale refuse treatment system and method |
| CN111662044A (en) * | 2020-06-30 | 2020-09-15 | 湖南翰坤实业有限公司 | Quick-setting concrete and preparation method thereof |
| CN112355017A (en) * | 2020-10-06 | 2021-02-12 | 深圳市泽源环境科技有限公司 | Method and equipment for preparing RDF (refuse derived Fuel) from wet garbage |
| TWI849278B (en) * | 2020-01-15 | 2024-07-21 | 隆順綠能科技股份有限公司 | A system for estimating the calorific value of solid recycled fuel |
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| CN110788112A (en) * | 2019-09-29 | 2020-02-14 | 中原环资科技有限公司 | Fine classification and sorting process method for industrial wastes |
| CN111282951A (en) * | 2019-12-27 | 2020-06-16 | 庞强 | Landfill stale refuse treatment system and method |
| TWI849278B (en) * | 2020-01-15 | 2024-07-21 | 隆順綠能科技股份有限公司 | A system for estimating the calorific value of solid recycled fuel |
| CN111662044A (en) * | 2020-06-30 | 2020-09-15 | 湖南翰坤实业有限公司 | Quick-setting concrete and preparation method thereof |
| CN112355017A (en) * | 2020-10-06 | 2021-02-12 | 深圳市泽源环境科技有限公司 | Method and equipment for preparing RDF (refuse derived Fuel) from wet garbage |
| CN112355017B (en) * | 2020-10-06 | 2023-12-29 | 深圳市泽源环境科技有限公司 | Method and equipment for preparing RDF from wet garbage |
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Application publication date: 20170606 |