CN101565647A - Pretreatment method and device for utilizing domestic garbage as fuel - Google Patents
Pretreatment method and device for utilizing domestic garbage as fuel Download PDFInfo
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- CN101565647A CN101565647A CNA200810149849XA CN200810149849A CN101565647A CN 101565647 A CN101565647 A CN 101565647A CN A200810149849X A CNA200810149849X A CN A200810149849XA CN 200810149849 A CN200810149849 A CN 200810149849A CN 101565647 A CN101565647 A CN 101565647A
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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
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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
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
Abstract
The invention discloses a pretreatment method and a pretreatment device for utilizing domestic garbage as fuel, and relates to prophase treatment technology for garbage fuel. The method is characterized in that: the domestic garbage is subjected to primary sorting, crushing or bag breaking, screening, airflow suspension air separation and air drying treatment, wherein in an air separation functional chamber of an airflow suspension air separator, working airflow makes mixed garbage suspend and roll to reach a loose state; and garbage materials are layered according to the density, low-moisture light organic matters, high-moisture heavy organic matters and heavy inorganic matters are discharged from corresponding outlets and then subjected to post treatment, and the garbage fuel has the moisture content less than 15 percent, the inorganic content less than 5 percent and the low caloric power over 9,700 kj/kg, so that the domestic garbage can be utilized as a gasification raw material of a gasification furnace, or can realize stable combustion in an incinerator or an industrial boiler without adding conventional fuel, or be prepared into briquette fuel with high density so as to realize processing the domestic garbage with environmental protection, decontamination, minimization and resource in real sense.
Description
Technical field
The present invention relates to the treatment technology in early stage of garbage fuel, specially refer to the pretreatment process and the equipment of domestic refuse.
Background technology
Current, energy shortage, the situation is tense in environmental protection.Rubbish is along with the continuous expansion of the development of Chinese national economy and city size and increase sharply, and the content of its objectionable constituent is also more and more higher, as handle bad, to pollute the environment, threaten people health, the progress that this not only can restrict society also has influence on the Sustainable development of national economy.Current, China handles domestic refuse and mainly contains Sanitary Landfill Technology, compost (biochemistry) technology and incineration technology, the major part area adopts sanitary landfill method to handle domestic refuse, and this not only need take a large amount of soils, waste resource, and easy contaminated land and underground water; The employing composting process is only utilized the organism about 40%, need to build supporting burning process equipment, also need sanitary filling field and match, there is contaminated soil in the heavy metal in the compost goods and enters the possibility of food cycle crop, has the hidden danger of secondary pollution equally; Adopt burning-power generating method to handle domestic waste, domestic refuse acted as a fuel utilize, can accomplish minimizing, recycling treatment domestic refuse, but because domestic refuse water content height (40～60%), calorific value are low by (3349～6699kj/kg), general garbage incinerating system needs the conventional fuel for combustion supporting with coal or fuel oil and so on when operation, have problem of environmental pollution simultaneously.Handling the most promising mode of domestic refuse is by gasification or liquefaction technology domestic refuse to be converted into secondary clean energy, and the resource utilization degree height is avoided environment is polluted, and realizes environmental friendliness ground processing domestic refuse.
Because domestic refuse complicated component, comprise food waste, the melon skin shell, waste paper, plastic waste, useless fabric, waste and old furniture, disposable chopsticks, human and animal excreta, organism of agriculture and forestry organic waste material and so on and masonry, silt particle, pottery, glass, refuse battery, inorganicss such as scrap metal are mixed in together, it constitutes in the thing high-moisture and low moisture, soft and hard, lightweight and heavy, inflammable and difficult combustion, the difference of organism and inorganics, composting as handle sends into incinerator or vapourizing furnace is handled, to the energy consumption in the stove be increased, can not carry out stable burning in the incinerator, vapourizing furnace can not be produced the synthetic gas of quality better, simultaneously easy damage equipment.Existing garbage incinerating power plant only is that rubbish is mixed in the storage hole to the pre-treatment of garbage fuel, store certain hour then, by compressing naturally and fermentative action, to reduce the water content of rubbish, improve the calorific value of going into stove rubbish, improve the burning effect of rubbish, but the garbage fuel calorific value through handling like this is not high, often need interpolation coal or fuel oil are combustion-supporting could realize stable burning in the stove, and such garbage fuel at all can not be as the gasified raw material utilization of vapourizing furnace.
Summary of the invention
The objective of the invention is will be the low heat value domestic refuse by pre-treatment, the water content that makes rubbish below 15%, inorganic content below 5%, low heat value reaches more than the 9700kj/kg, can produce high-quality synthetic gas as the gasified raw material of vapourizing furnace, or need not add conventional oil and just can realize in the incinerator or the stable burning in the Industrial Boiler, realize that environmental friendliness ground handles domestic refuse, thereby realize truly innoxious, minimizing, recycling treatment domestic refuse.
A kind of domestic refuse of the present invention is made the pretreatment process that fuel utilizes, the sorting technology that comprises garbage fuel, be by primary election with the low-calorie domestic refuse of various complicated ingredient blended, fragmentation or broken bag, screening, pneumatic floating selection by winnowing and air-dry operation, reach the moisture content and the inorganic content that reduce garbage fuel, improve the calorific value of garbage fuel, make the domestic refuse can be as the gasified raw material utilization of vapourizing furnace, or make domestic refuse need not add conventional fuel for combustion supporting just to be implemented in stable burning in the incinerator, wherein: the domestic refuse of complicated component is separated into Bulky Waste in the primary election operation, smallclothes rubbish, the bulk building waste; Bulky Waste is carried out fragmentation, sub-elects the utilization that acts as a fuel of waste wood particle by crusher, smallclothes rubbish by the laggard row filter of broken bag operation, is removed silt particle, the composting on the sieve is sent into the pneumatic floating air float separator carry out selection by winnowing and separate; Working air current in the pneumatic floating air float separator is the air draught that powerful high pressure blower blasts, in the selection by winnowing functional compartments, air-flow from bottom to top moves, wind speed is not all 5～50m/s by material size and unit weight, working air current from bottom to top rolls the composting suspension, reach loose condition (of surface), rubbish material is by density stratification; In the selection by winnowing functional compartments, form light material suspension zone and middle heavier feeds suspension zone, low-moisture lightweight organism is drawn by the lightweight organism outlet of light material suspension zone one side, high-moisture, middle heavy organism are drawn by the middle heavy organism outlet of middle heavier feeds suspension zone one side, and the heavy inorganics is discharged from the outlet of pneumatic floating selection by winnowing bottom; Send into air dryer from the isolated low moisture lightweight of pneumatic floating air float separator organism and carry out air-dry processing, the wind regime of air dryer is natural air or warm air, pump by induced draft fan or gas blower, wind speed in the air dryer is 0.5～3m/s, the residence time of material in air dryer is 1～3 hour or detects definite by on-site sampling, when adopting warm air as the wind regime of air dryer, the air themperature of sending into air dryer is controlled between 80～120 ℃, average operation temperature in the air dryer is controlled between 70～110 ℃, organic solid waste is by air-dry processing, remove moisture, become low heat value and reach the above garbage fuel of 9700kj/kg; The heavy organism is sent into squeezing dehydration device and is carried out processed from the isolated high-moisture of pneumatic floating air float separator, organic solid waste material after the dehydration is done the fuel utilization or is sent into air dryer and further remove moisture, becomes low heat value and reaches the above garbage fuel of 9700kj/kg; Adopt above-mentioned pretreated garbage fuel the wherein a kind of of following manner to utilize:
A. garbage fuel is sent into vapourizing furnace and be converted into synthetic gas by gasification reaction, synthetic gas is made domestic fuel or industrial fuel or is made industrial chemicals;
B. garbage fuel is sent into incinerator or Industrial Boiler carries out burning disposal, be converted into heat energy, generate electricity or heat supply;
C. garbage fuel is pulverized, added the additive of dechlorination sweetening agent and so on, produce highdensity shaped fuel with compressed moulding equipment, as Industrial Boiler fuel or domestic fuel utilization.
In the aforesaid method, the rubbish juice that produces from the extrusion dehydration operation is sent into digestive organ carry out anaerobically fermenting production biogas, the biogas that produces is done the fuel utilization; Isolated heavy inorganics from the pneumatic floating air float separator is sent into metal letter sorting operation, reclaim scrap metal and refuse battery, the refuse battery that reclaims is carried out special disposal.The equipment of metal letter sorting operation mainly contains magnetic separator, inertia sorting machine and metal measuring and control device, cooperates artificial off-line operation, iron, copper, aluminium, zinc, chromium, lead and refuse battery is sorted out reclaimed.
In the aforesaid method, the high-moisture that sub-elects from the pneumatic floating air float separator, the heavy organism send into soft, hard separator and separate again, the soft organism of isolated high-moisture is sent into digestive organ carry out anaerobically fermenting production biogas, the hard organism is sent into air dryer carry out air-dry processing or directly do the fuel utilization.
In the aforesaid method, the screening plant in the screening process comprises stationary screen, trommel screen, vibratory screening apparatus, disk unbalanced-throw screen one or more combination wherein; Adopt the multistage screening operation to segment rubbish material, make rubbish material become some grades by bodily form size separation, the follow-up setting of screening process at different levels is pneumatic floating air float separator equipment independently, with the resolving power that improves sorting and make things convenient for subsequent disposal.
A kind of pneumatic floating air float separator equipment of realizing aforesaid method of the present invention, the working air current that it is characterized in that equipment from bottom to top moves, naturally form light material suspension zone (22) and middle heavier feeds suspension zone (20) by operating mode, light material suspension zone (22) and middle heavier feeds suspension zone (20) constitute the selection by winnowing functional compartments.Equipment mainly is made up of circular cylindrical shell (23), opening for feed (1b) or (19), air blast interface (16), air outlet (1), lightweight organism outlet (2), middle heavy organism outlet (11), heavy inorganics outlet (12), light material suspension zone (22) and middle heavier feeds suspension zone (20), wherein: circular cylindrical shell (23) constitutes the agent structure of pneumatic floating air float separator, is vertical setting; Light material suspension zone (22) and middle heavier feeds suspension zone (20) are in circular cylindrical shell (23), be coaxial setting up and down, light material suspension zone (22) is on middle heavier feeds suspension zone (20), one side of light material suspension zone (22) has lightweight organism outlet (2) to pick out, and a side of middle heavier feeds suspension zone (20) has middle heavy organism outlet (11) to pick out; Heavy inorganics outlet (12) picks out from the bottom of pneumatic floating air float separator; Air blast interface (16) is gone into from a side joint of circular cylindrical shell (23) bottom; Air outlet (1) is in the top of light material suspension zone (22).Opening for feed is arranged on the top of pneumatic floating air float separator or is arranged on air blast interface (16) top of pneumatic floating air float separator bottom, when equipment is the operating mode of gap charging, gap discharging, opening for feed (1b) is at the top of pneumatic floating air float separator, and opening for feed is the double as air outlet simultaneously; When equipment is the operating mode of continuously feeding, discharging continuously, bottom, heavier feeds suspension zone (20) one side during opening for feed (19) is arranged on, and in the top of air blast interface (16), hopper (21) is connected on the opening for feed (19); Air flow inlet place in below, middle heavier feeds suspension zone (20) is provided with aditus laryngis (18), and aditus laryngis (18) forms the air-flow acceleration zone, stops organic solid waste to be discharged from heavy inorganics outlet (12).
Another kind of pneumatic floating air float separator equipment of the present invention, it is characterized in that being provided with air distribution plate (14) in the bottom of pneumatic floating air float separator, air distribution plate (14) is obliquely installed, and air compartment (15) is set below the air distribution plate (14), and air blast interface (16) is gone into from a side joint of air compartment (15).
In aforesaid device, the air outlet of high pressure positive blower (17) is connected on the air blast interface (16), the working air current of pneumatic floating air float separator blasts air by high pressure positive blower (17) and forms, wind speed in the pneumatic floating air float separator is not all 5～50m/s by the size and the unit weight of sorting material, during concrete enforcement, determine by field adjustable.
The invention has the beneficial effects as follows: domestic refuse by primary election, fragmentation or broken bag, screening, after pneumatic floating selection by winnowing and air-dry operation are handled, reach the moisture content and the inorganic content that reduce garbage fuel, improve the calorific value of garbage fuel, reaching low heat value is the above fuel level of 9700kj/kg, make the domestic refuse can be as the gasified raw material utilization of vapourizing furnace, the town gas of calorific value or hydrogen manufacturing or synthesizing methanol in being used for producing, dme, the secondary clean energy that makes garbage waste material be converted into high heating value becomes possibility, or need not add conventional fuel for combustion supporting and just can be implemented in stable burning in the incinerator, can save the great amount of conventional energy in the waste incineration field, in burning process, reduce pollutant emission, thereby realize truly innoxious, minimizing, the recycling treatment domestic refuse.
Description of drawings
The invention provides following accompanying drawing and be further described, but each accompanying drawing and following embodiment all are not construed as limiting the invention:
Fig. 1 is the flow diagram of a kind of domestic refuse pretreatment process of the present invention.
Fig. 2 is the flow diagram of another kind of domestic refuse pretreatment process of the present invention.
Fig. 3 is the flow diagram of another domestic refuse pretreatment process of the present invention.
Fig. 4 is the equipment structure chart of a kind of pneumatic floating pneumatic separation device of the present invention.
Fig. 5 is the equipment structure chart of another kind of pneumatic floating pneumatic separation device of the present invention.
Fig. 6 is the equipment structure chart of another pneumatic floating pneumatic separation device of the present invention.
Fig. 7 is the equipment structure chart of another kind of again pneumatic floating pneumatic separation device of the present invention.
Among the figure: 1. air outlet, 1b. opening for feed, 2. lightweight organism outlet, 3. motorized valve, 4. motorized valve, 5. cyclone separator, 6. induced draft fan, 7. induced draft fan, 8. cyclone separator, 9. discharge nozzle, 10. discharge nozzle, heavy organism outlet in 11., 12. the outlet of heavy inorganics, 13. air nozzles, 14. air distribution plates, 15. air compartments, 16. the air blast interface, 17. high pressure positive blowers, 18. aditus laryngis, 19. opening for feeds, 20. middle heavier feeds suspension zone, 21. hoppers, 22. light material suspension zones, 23. circular cylindrical shells.
Embodiment
Among the embodiment shown in Figure 1, the flow process of domestic refuse pretreatment process mainly is made up of primary election, Bulky Waste fragmentation/smallclothes garbage bag breaking, screening, pneumatic floating selection by winnowing, high-moisture garbage dewatering and air-dry operation, wherein: the primary election operation is utilized loop wheel machine grab bucket operation, Bulky Waste is sent to crusher carry out break process, bulk building waste (brick, stone, glass) is disposed from refuse pit, made in the storage hole and stay smallclothes rubbish; Bulky Waste is mainly the shabby fabric of waste and old furniture, waste wood and bulk, sends into the inertia sorting unit and carry out sorting after crusher is handled, and the scrap metal that sub-elects reclaims, the utilization that acts as a fuel of the waste wood that sub-elects (bamboo), fabric particle; Send into screening process after smallclothes rubbish sent to broken bag device broken bag, remove silt particle by screening, composting on the sieve is sent into the pneumatic floating air float separator carry out the selection by winnowing separation, isolate heavy organism, heavy inorganics in low moisture lightweight organism, the high-moisture; Isolated low moisture lightweight organism is sent into air dryer carry out air-dry processing, become low heat value and reach the above garbage fuel of 9700kj/kg; Isolated high-moisture, middle heavy organism are sent into squeezing dehydration device carry out processed, the organic solid waste material after the dehydration is sent into air dryer and is further removed moisture, becomes low heat value and reaches the above garbage fuel of 9700kj/kg; Isolated heavy inorganics is reclaimed scrap metal and refuse battery by metal letter sorting operation; The garbage fuel after air-dry as the gasified raw material of vapourizing furnace or as the fuel of incinerator, or the garbage fuel after air-dry is pulverized, is added the additive of dechlorination/sweetening agent and so on again, produce highdensity shaped fuel by compressed moulding equipment, as Industrial Boiler fuel or domestic fuel utilization; The rubbish juice that produces from the extrusion dehydration operation is sent into digestive organ carry out anaerobically fermenting production biogas, the biogas that produces is done the fuel utilization.
Among the embodiment shown in Figure 2, with embodiment difference shown in Figure 1 be: the screening process in the domestic refuse pretreatment process is designed to three level screen, rubbish material is become Three Estate by bodily form size separation, independently subsequent processing device (not shown) all is set after the three level screen operation.
Among the embodiment shown in Figure 3, with embodiment difference shown in Figure 1 be: the isolated high-moisture of pneumatic floating air float separator, middle heavy organism again by soft, hard separator sorting, the soft organism of the high-moisture that sub-elects is sent into digestive organ and is carried out anaerobically fermenting production biogas, sub-elect hard rubbish and be generally the combustiblematerials of waste wood (bamboo) material, plastics class, vapourizing furnace can be sent into directly or incinerator is done the fuel utilization, or by pulverizing back adding additive, boil down to shaped fuel.Described soft, hard separator equipment is trajectory separator, bounce-back cylinder separator and swash plate delivering sorting machine one or more combination wherein, equipment outsourcing or adopt the known technology manufacturing.
Among the embodiment shown in Figure 4, pneumatic floating air float separator equipment mainly is made up of circular cylindrical shell (23), opening for feed (1b) or (19), air blast interface (16), air outlet (1), lightweight organism outlet (2), middle heavy organism outlet (11), heavy inorganics outlet (12), light material suspension zone (22) and middle heavier feeds suspension zone (20), wherein: circular cylindrical shell (23) constitutes the agent structure of pneumatic floating air float separator, is vertical setting; Light material suspension zone (22) and middle heavier feeds suspension zone (20) are in circular cylindrical shell (23), be coaxial setting up and down, light material suspension zone (22) is on middle heavier feeds suspension zone (20), one side of light material suspension zone (22) has lightweight organism outlet (2) to pick out, and a side of middle heavier feeds suspension zone (20) has middle heavy organism outlet (11) to pick out; Heavy inorganics outlet (12) picks out from the bottom of pneumatic floating air float separator; Air blast interface (16) is gone into from a side joint of circular cylindrical shell (23) bottom; The air outlet is in the top of light material suspension zone (22), and the cross section in zone, air outlet is the expansion design and leaves stroke leeway, to reduce wind speed, avoids material web to go out air float separator; Opening for feed (1b) is at the top of pneumatic floating air float separator, and opening for feed is the double as air outlet simultaneously; Air flow inlet place in bottom, middle heavier feeds suspension zone (20) is provided with aditus laryngis (18), and aditus laryngis (18) forms the air-flow acceleration zone, stops organic solid waste to be discharged from heavy inorganics outlet (12).The peripheral accessory of present embodiment has: high pressure positive blower (17), motorized valve (3) and (4), cyclone separator (5) and (8), induced draft fan (6), and the mode of connection between each equipment is: the air outlet of high pressure positive blower (17) is connected on the air blast interface (16) of pneumatic floating air float separator; The lightweight organism outlet (2) of pneumatic floating air float separator is connected to the charging interface of cyclone separator (5) by motorized valve (3); The middle heavy organism outlet (11) of pneumatic floating air float separator is connected to the charging interface of cyclone separator (8) by motorized valve (4); Be connected to the air-breathing interface of induced draft fan (6) after the air outlet of the air outlet of cyclone separator (5) and cyclone separator (8) merges, the exhaust port of induced draft fan (6) is connected to purifying air treatment facility (not shown) or is connected to the blast inlet (not shown) of high pressure positive blower (17).Present embodiment is taked the gap charging, the operating mode of gap discharging, charging and discharging are staggered and are carried out, during the equipment operation, blast air by high pressure positive blower (17) and form the selection by winnowing working air current, working air current from bottom to top moves, wind speed is not all 5～50m/s by the size and the unit weight of sorting material, naturally the light material suspension zone (22) and the middle heavier feeds suspension zone (20) that form by operating mode in the selection by winnowing functional compartments, the composting material enters the interior selection by winnowing functional compartments of air float separator from the opening for feed (1b) at pneumatic floating air float separator top, inlet amount is a selection by winnowing functional compartments volumetrical 1/3, from bottom to top working air current suspends composting to roll in the selection by winnowing functional compartments, reach loose condition (of surface), continue 1～3 minute, make rubbish material by density stratification, low-moisture lightweight organism is suspended in zone, light material suspension zone (22), high-moisture organism and middle heavy organism are suspended in middle zone, heavier feeds suspension zone (20), at this moment, start induced draft fan (6) and open motorized valve (3), low-moisture lightweight organism is introduced into cyclone separator (5) and carries out gas solid separation, and isolated solid-state organism is discharged by discharge nozzle (10); Then, close motorized valve (3), open motorized valve (4) simultaneously, make high-moisture organism and middle heavy organism be introduced in cyclone separator (8) and carry out gas solid separation, isolated solid-state organism is discharged by discharge nozzle (9); In the said process, the heavy inorganics descends in below, middle heavier feeds suspension zone (20), locates to obtain to separate at aditus laryngis (18), and the heavy inorganics is discharged from outlet (12); After finishing, close induced draft fan and motorized valve, charging again repeats said process.Discharge nozzle in the present embodiment (9), discharge nozzle (10) and heavy organism outlet (12) need to stop the air suck-back, can isolate or valve is set by material and realize.
Embodiment shown in Figure 5, be air distribution plate (14) to be set in the pneumatic floating air float separator bottom of Fig. 4 embodiment, air nozzle (13) is arranged on the air distribution plate (14), air distribution plate (14) is obliquely installed, air compartment (15) is set below the air distribution plate (14), and air blast interface (16) is gone into from a side joint of air compartment (15); Heavy inorganics outlet (12) is arranged on a side of air distribution plate (14) inclined low-end.
Embodiment shown in Figure 6 is to increase induced draft fan (7) in the pneumatic floating air float separator peripheral accessory of Fig. 4 or Fig. 5 embodiment, and the air suction inlet of induced draft fan (7) is connected to the air outlet of cyclone separator (8).In the present embodiment: the air outlet of the air outlet of cyclone separator (5) and cyclone separator (8) is connected to separately on the air-breathing interface of induced draft fan (6) and (7) separately; Induced draft fan (6) and motorized valve (3) synchronous initiation are opened, and induced draft fan (7) and motorized valve (4) synchronous initiation are opened, and the resistance to air loss requirement that can reduce discharge nozzle (9), discharge nozzle (10) and heavy organism outlet (12) is set like this.
Embodiment shown in Figure 7 is that bottom, middle heavier feeds suspension zone (20) one side at the pneumatic floating air float separator of Fig. 4 or Fig. 5 embodiment is provided with opening for feed (19), has hopper (21) to be connected on the opening for feed (19) simultaneously.Present embodiment is the operating mode of continuously feeding, continuous discharging, and during the equipment operation, high pressure positive blower (17), motorized valve (3), motorized valve (4) and induced draft fan (6) synchronous initiation are opened.
Claims (9)
1. a domestic refuse is made the pretreatment process that fuel utilizes, the sorting technology that comprises garbage fuel, it is characterized in that domestic refuse by primary election, fragmentation or broken bag, screening, pneumatic floating selection by winnowing and air-dry operation, reach the moisture content and the inorganic content that reduce garbage fuel, improve the calorific value of garbage fuel, make the domestic refuse can be as the gasified raw material utilization of vapourizing furnace, or make domestic refuse need not add conventional fuel for combustion supporting just to be implemented in stable burning in the incinerator, wherein: the domestic refuse of complicated component is separated into Bulky Waste in the primary election operation, smallclothes rubbish, the bulk building waste; Bulky Waste is carried out fragmentation, sub-elects the utilization that acts as a fuel of waste wood particle by crusher, smallclothes rubbish by the laggard row filter of broken bag operation, is removed silt particle, the composting on the sieve is sent into the pneumatic floating air float separator carry out selection by winnowing and separate; Working air current in the pneumatic floating air float separator from bottom to top moves, composting rolls at selection by winnowing functional compartments inner suspension, reach loose condition (of surface), rubbish material is by density stratification, form light material suspension zone and middle heavier feeds suspension zone, low-moisture lightweight organism is drawn by the lightweight organism outlet of light material suspension zone one side, high-moisture, middle heavy organism are drawn by the middle heavy organism outlet of middle heavier feeds suspension zone one side, and the heavy inorganics is discharged from the outlet of pneumatic floating air float separator bottom; Send into air dryer from the isolated low moisture lightweight of pneumatic floating air float separator organism and carry out air-dry processing, become garbage fuel; The heavy organism is sent into squeezing dehydration device and is carried out processed from the isolated high-moisture of pneumatic floating air float separator, and the organic solid waste material after the dehydration is sent into air dryer and further removed moisture, becomes garbage fuel;
Adopting the wherein a kind of of following manner to utilize through pretreated garbage fuel:
A. garbage fuel is sent into vapourizing furnace and be converted into synthetic gas by gasification reaction;
B. garbage fuel is sent into incinerator or Industrial Boiler carries out burning disposal, be converted into heat energy;
C. garbage fuel is pulverized, added additive, produce highdensity shaped fuel with compressed moulding equipment.
2. a kind of domestic refuse according to claim 1 is made the pretreatment process that fuel utilizes, and it is characterized in that the rubbish juice that produces from the extrusion dehydration operation is sent into digestive organ carries out anaerobically fermenting production biogas.
3. a kind of domestic refuse according to claim 1 is made the pretreatment process that fuel utilizes, it is characterized in that isolated heavy inorganics from the pneumatic floating air float separator is sent into metal letter sorting operation, reclaim scrap metal and refuse battery, the refuse battery that reclaims is carried out special disposal.
4. a kind of domestic refuse according to claim 1 is made the pretreatment process that fuel utilizes, it is characterized in that the high-moisture that sub-elects from the pneumatic floating air float separator, the heavy organism send into soft, hard separator and separate, the soft organism of isolated high-moisture is sent into digestive organ carry out anaerobically fermenting production biogas, the hard organism is sent into air dryer carry out air-dry processing or directly do the fuel utilization.
5. a kind of domestic refuse according to claim 1 is made the pretreatment process that fuel utilizes, and it is characterized in that adopting the multistage screening operation to segment rubbish material, and the follow-up setting of screening process at different levels is pneumatic floating air float separator equipment independently.
6. equipment of realizing the described method of claim 1, the working air current that it is characterized in that pneumatic floating air float separator equipment from bottom to top moves, naturally form light material suspension zone (22) and middle heavier feeds suspension zone (20) by operating mode, light material suspension zone (22) and middle heavier feeds suspension zone (20) constitute the selection by winnowing functional compartments; Equipment mainly is made up of circular cylindrical shell (23), opening for feed (1b) or (19), air blast interface (16), air outlet (1), lightweight organism outlet (2), middle heavy organism outlet (11), heavy inorganics outlet (12), light material suspension zone (22) and middle heavier feeds suspension zone (20), wherein: circular cylindrical shell (23) constitutes the agent structure of pneumatic floating air float separator, is vertical setting; Light material suspension zone (22) and middle heavier feeds suspension zone (20) are in circular cylindrical shell (23), be coaxial setting up and down, light material suspension zone (22) is on middle heavier feeds suspension zone (20), one side of light material suspension zone (22) has lightweight organism outlet (2) to pick out, and a side of middle heavier feeds suspension zone (20) has middle heavy organism outlet (11) to pick out; Heavy inorganics outlet (12) picks out from the bottom of pneumatic floating air float separator; Air blast interface (16) is gone into from a side joint of circular cylindrical shell (23) bottom; Air outlet (1) is in the top of light material suspension zone (22); Opening for feed is arranged on the top of pneumatic floating air float separator or is arranged on air blast interface (16) top of pneumatic floating air float separator bottom.
7. according to the described a kind of pneumatic floating air float separator equipment of claim 6, it is characterized in that when equipment is the operating mode of gap charging, gap discharging that opening for feed (1b) is at the top of pneumatic floating air float separator, opening for feed is the double as air outlet simultaneously; When equipment is the operating mode of continuously feeding, discharging continuously, bottom, heavier feeds suspension zone (20) one side during opening for feed (19) is arranged on, and in the top of air blast interface (16), hopper (21) is connected on the opening for feed (19).
8. according to claim 6 or 7 described a kind of pneumatic floating air float separator equipment, it is characterized in that aditus laryngis (18) being set at the air flow inlet place of below, middle heavier feeds suspension zone (20), aditus laryngis (18) forms the air-flow acceleration zone, stops organic solid waste to be discharged from heavy inorganics outlet (12).
9. according to claim 6 or 7 described a kind of pneumatic floating air float separator equipment, it is characterized in that being provided with air distribution plate (14) in the bottom of pneumatic floating air float separator, air distribution plate (14) is obliquely installed, and air compartment (15) is set below the air distribution plate (14), and air blast interface (16) is gone into from a side joint of air compartment (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810149849A CN101565647B (en) | 2008-10-01 | 2008-10-01 | Pretreatment method and device for utilizing domestic garbage as fuel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810149849A CN101565647B (en) | 2008-10-01 | 2008-10-01 | Pretreatment method and device for utilizing domestic garbage as fuel |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101565647A true CN101565647A (en) | 2009-10-28 |
| CN101565647B CN101565647B (en) | 2012-10-03 |
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| CN101982532A (en) * | 2010-11-11 | 2011-03-02 | 沈阳航空航天大学 | System for preparing refuse derived fuel from high-calorific-value components of house refuse |
| CN102380454A (en) * | 2011-09-22 | 2012-03-21 | 栾清杨 | Winnowing device of solid wastes |
| CN102441560A (en) * | 2011-04-18 | 2012-05-09 | 深圳市龙澄高科技环保有限公司 | Domestic garbage compression-classification-comprehensive disposal-and-utilization system and device |
| CN102889597A (en) * | 2012-11-02 | 2013-01-23 | 武汉德合顺环境科技有限公司 | Process and system for domestic garbage incineration waste heat drying pretreatment |
| CN103028595A (en) * | 2012-12-03 | 2013-04-10 | 周鼎力 | Energy utilization method for household garbage |
| CN105127100A (en) * | 2015-09-12 | 2015-12-09 | 商丘金蓬实业股份有限公司 | Carbon-black and steel-wire separating device |
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| CN115090514A (en) * | 2022-06-24 | 2022-09-23 | 北京建工资源循环利用投资有限公司 | Control method and device of garbage screening system, electronic equipment and medium |
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| CN101982532B (en) * | 2010-11-11 | 2013-06-12 | 沈阳航空航天大学 | System for preparing refuse derived fuel from high-calorific-value components of house refuse |
| CN101982532A (en) * | 2010-11-11 | 2011-03-02 | 沈阳航空航天大学 | System for preparing refuse derived fuel from high-calorific-value components of house refuse |
| CN102441560A (en) * | 2011-04-18 | 2012-05-09 | 深圳市龙澄高科技环保有限公司 | Domestic garbage compression-classification-comprehensive disposal-and-utilization system and device |
| CN102441560B (en) * | 2011-04-18 | 2015-05-06 | 深圳市龙澄高科技环保有限公司 | Domestic garbage compression-classification-comprehensive disposal-and-utilization system |
| CN102380454A (en) * | 2011-09-22 | 2012-03-21 | 栾清杨 | Winnowing device of solid wastes |
| CN102889597A (en) * | 2012-11-02 | 2013-01-23 | 武汉德合顺环境科技有限公司 | Process and system for domestic garbage incineration waste heat drying pretreatment |
| CN103028595A (en) * | 2012-12-03 | 2013-04-10 | 周鼎力 | Energy utilization method for household garbage |
| CN106322387A (en) * | 2015-06-18 | 2017-01-11 | 中建材(北京)环保工程发展有限公司 | Rubbish disposal method |
| CN106322387B (en) * | 2015-06-18 | 2019-05-10 | 蓝天众成环保工程有限公司 | A kind of waste disposal method |
| CN105127100A (en) * | 2015-09-12 | 2015-12-09 | 商丘金蓬实业股份有限公司 | Carbon-black and steel-wire separating device |
| CN105127100B (en) * | 2015-09-12 | 2017-07-21 | 商丘金蓬实业股份有限公司 | Carbon black, steel wire separator |
| CN105268643A (en) * | 2015-11-06 | 2016-01-27 | 万世蓉 | Screening equipment for sorting waste materials automatically |
| CN106423870A (en) * | 2016-11-23 | 2017-02-22 | 益阳万维竹业有限公司 | Waste control door for foreign matter separating system for bamboo scrap raw materials |
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| CN111922043A (en) * | 2020-08-06 | 2020-11-13 | 安徽奉念城机电设计服务有限公司 | Processing technology of organic fertilizer |
| CN113736532A (en) * | 2021-10-12 | 2021-12-03 | 桦甸市润洁环保有限公司 | Processing technology of domestic garbage derived fuel |
| CN113883527A (en) * | 2021-10-18 | 2022-01-04 | 西安西热锅炉环保工程有限公司 | Construction waste disposal and resource utilization system and method based on pulverized coal fired boiler |
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| CN115444148A (en) * | 2022-10-31 | 2022-12-09 | 甘肃省农业科学院作物研究所 | Pepper shelling and crushing equipment for preparing linseed oil |
| CN117091138A (en) * | 2023-10-17 | 2023-11-21 | 中鹏未来有限公司 | Household garbage thermal conversion-thermal separation coupling process and device |
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