CN113217916A - Integrated organic garbage pyrolysis gasification combustion reaction device and application - Google Patents
Integrated organic garbage pyrolysis gasification combustion reaction device and application Download PDFInfo
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- 239000010813 municipal solid waste Substances 0.000 title claims abstract description 99
- 238000002485 combustion reaction Methods 0.000 title claims abstract description 66
- 238000000197 pyrolysis Methods 0.000 title claims abstract description 24
- 238000002309 gasification Methods 0.000 title claims abstract description 22
- 239000007789 gas Substances 0.000 claims abstract description 59
- 238000000746 purification Methods 0.000 claims abstract description 13
- 239000002893 slag Substances 0.000 claims abstract description 10
- 239000010815 organic waste Substances 0.000 claims abstract description 6
- 238000000354 decomposition reaction Methods 0.000 claims abstract description 5
- 238000004064 recycling Methods 0.000 claims abstract description 4
- 239000002956 ash Substances 0.000 claims description 30
- 238000005192 partition Methods 0.000 claims description 18
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 16
- 239000003546 flue gas Substances 0.000 claims description 16
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 15
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 9
- 239000000047 product Substances 0.000 claims description 9
- 229910052757 nitrogen Inorganic materials 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 238000005265 energy consumption Methods 0.000 claims description 5
- 235000012055 fruits and vegetables Nutrition 0.000 claims description 5
- 239000010893 paper waste Substances 0.000 claims description 5
- 239000004033 plastic Substances 0.000 claims description 5
- 238000002156 mixing Methods 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 4
- -1 packaging boxes Substances 0.000 claims description 4
- 239000013589 supplement Substances 0.000 claims description 4
- 239000011269 tar Substances 0.000 claims description 4
- 239000002023 wood Substances 0.000 claims description 4
- 238000007599 discharging Methods 0.000 claims description 3
- 239000010881 fly ash Substances 0.000 claims description 3
- 239000011368 organic material Substances 0.000 claims description 3
- 238000004806 packaging method and process Methods 0.000 claims description 3
- 238000005507 spraying Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 17
- HGUFODBRKLSHSI-UHFFFAOYSA-N 2,3,7,8-tetrachloro-dibenzo-p-dioxin Chemical compound O1C2=CC(Cl)=C(Cl)C=C2OC2=C1C=C(Cl)C(Cl)=C2 HGUFODBRKLSHSI-UHFFFAOYSA-N 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000010354 integration Effects 0.000 abstract description 2
- 230000000694 effects Effects 0.000 abstract 1
- 239000002912 waste gas Substances 0.000 abstract 1
- 238000005516 engineering process Methods 0.000 description 8
- 239000000126 substance Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000003912 environmental pollution Methods 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 239000000571 coke Substances 0.000 description 1
- 238000004939 coking Methods 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000012856 packing Methods 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 239000002910 solid waste Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/006—General arrangement of incineration plant, e.g. flow sheets
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/02—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment
- F23G5/027—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage
- F23G5/0276—Incineration of waste; Incinerator constructions; Details, accessories or control therefor with pretreatment pyrolising or gasifying stage using direct heating
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/08—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating
- F23G5/10—Incineration of waste; Incinerator constructions; Details, accessories or control therefor having supplementary heating electric
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/442—Waste feed arrangements
- F23G5/444—Waste feed arrangements for solid waste
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G5/00—Incineration of waste; Incinerator constructions; Details, accessories or control therefor
- F23G5/44—Details; Accessories
- F23G5/46—Recuperation of heat
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2201/00—Pretreatment
- F23G2201/30—Pyrolysing
- F23G2201/302—Treating pyrosolids
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2204/00—Supplementary heating arrangements
- F23G2204/20—Supplementary heating arrangements using electric energy
- F23G2204/204—Induction
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2205/00—Waste feed arrangements
- F23G2205/12—Waste feed arrangements using conveyors
- F23G2205/121—Screw conveyor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23G—CREMATION FURNACES; CONSUMING WASTE PRODUCTS BY COMBUSTION
- F23G2206/00—Waste heat recuperation
- F23G2206/10—Waste heat recuperation reintroducing the heat in the same process, e.g. for predrying
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Processing Of Solid Wastes (AREA)
- Gasification And Melting Of Waste (AREA)
Abstract
An integrated organic garbage pyrolysis gasification combustion reaction device comprises a screw conveyor, an integrated device, a primary heat exchanger, a secondary heat exchanger, an air separator and a tail gas purification device. The continuous addition of the organic garbage is adopted, tail gas generated by gradual decomposition by utilizing different heat energy of an anaerobic zone, an anoxic zone and a combustion zone in the integrated device is purified and then discharged, and ash and slag are discharged through an ash discharge port, so that the integration of the organic garbage is realized, the high-efficiency reduction, the harmlessness and the recycling are realized, and the pollution of organic wastes in the household garbage to the environment is effectively removed. The invention has the advantages that: the treatment device has the characteristics of simple process, easiness in operation, low operating cost, harmlessness of organic wastes, high reduction speed, good effect, standard emission of generated waste gas after treatment, no generation of dioxin and the like, and the whole treatment process has no secondary pollution to the environment and has remarkable economic, social and environmental benefits.
Description
Technical Field
The invention relates to a pyrolysis, gasification and combustion treatment method of organic solid waste, in particular to an integrated organic garbage pyrolysis, gasification and combustion reaction device and application.
Background
The organic garbage is a substance which is difficult to utilize and is generated in the process of human life, and mainly comprises kitchen garbage, fruit and vegetable garbage, waste paper, packing boxes, plastic products, wood products and the like. Although we have established garbage classification, the knowledge level of villagers is low for remote villages, the development of garbage classification is still difficult, and the garbage transportation distance in the areas is long, so that the cost is high, the problems of leakage, leakage and the like during transportation cause environmental pollution, and meanwhile, a serious financial burden is caused.
The existing garbage treatment and disposal methods comprise methods such as landfill, incineration, pyrolysis and gasification. Land resources are occupied by landfill; because the domestic garbage has higher water content and low incineration heat value, the potential safety hazard in the incineration process is high; the pyrolysis gasification process is easy to coke, slag and block pipelines, and the potential safety hazard is serious. In order to solve the problems of long transportation distance, high treatment cost, heavy pollution, large amount of manual screening, coking, slagging and the like of the household garbage, the invention develops an integrated organic garbage pyrolysis gasification combustion reaction device and an application method thereof.
Disclosure of Invention
The invention aims to solve the existing problems and provides an integrated organic garbage pyrolysis gasification combustion reaction device and an application method thereof.
The technical scheme of the invention is as follows:
an integrated organic garbage pyrolysis gasification combustion reaction device comprises a screw conveyor, an integrated device, a primary heat exchanger, a secondary heat exchanger, an air separator and a tail gas purification device. The system is provided with a feed inlet, an ash outlet, a tail gas outlet and a pipeline, and organic garbage and nitrogen separated by an air separator are mixed by a screw conveyor and then are sent into the integrated device from the bottom. The bottom of the device is provided with an electromagnetic pulse generator which provides a heat source for organic garbage in a bottom oxygen-free area; organic materials continuously enter the integrated device, so that the materials are continuously lifted upwards; a partition plate I is arranged between the anoxic zone and the anoxic zone, and the material enters the anoxic zone through a channel in the middle of the partition plate I; the anoxic zone is connected with the combustion zone through a partition plate II, oxygen is sprayed from an oxygen spraying inlet in the combustion zone, combustion is carried out on the partition plate II, and ash generated by combustion is discharged through an ash discharging port along a partition plate groove; gas and fly ash generated by combustion enter a flue gas pipeline through a flue gas outlet, a primary heat exchanger and a secondary heat exchanger are arranged in the flue gas pipeline, and heat exchanged by the primary heat exchanger enters a heat exchange jacket of an anoxic zone through a primary heat exchange pipe to provide a heat source for the anoxic zone; the heat exchanged by the secondary heat exchanger enters the heat exchange jacket of the anoxic zone through the secondary heat exchange pipe to provide a heat source for the anoxic zone; the gas after heat exchange enters a flue gas purification device, and the purified tail gas is directly discharged through a tail gas discharge port.
An application method of an integrated organic garbage pyrolysis gasification combustion reaction device adopts continuous addition of organic garbage, tail gas generated by gradual decomposition by using different heat energy of an anaerobic zone, an anoxic zone and a combustion zone in the integrated device is purified and then discharged, ash and slag are discharged through an ash discharge port, so that the integrated organic garbage is efficiently reduced, harmless and recycled, and the pollution of organic wastes in household garbage to the environment is effectively removed, and the method comprises the following steps:
1) mixing organic garbage with nitrogen by using a screw conveyer, feeding the mixture into an integrated device, entering an anoxic zone, starting electromagnetic pulse to provide a heat source for the organic garbage, and keeping the temperature of the anoxic zone at 400-;
2) with the continuous entering of the organic garbage into the anoxic zone, the organic garbage stays in the anoxic zone for 4-6 hours, and 20-35% of the organic garbage is decomposed to generate combustible gas, oxygen, tar gas and other gases;
3) the organic garbage and gas after the pyrolysis reaction in the anoxic zone enter the anoxic zone, the temperature of the anoxic zone is 700-;
4) the organic garbage and gas reacted in the anoxic zone enter a combustion zone, and the organic garbage and the gas are mixed with high-purity oxygen obtained by an air separation device in the combustion zone and then are combusted, wherein the combustion temperature is 1000-;
5) high-temperature gas generated after combustion enters a tail gas purification device after passing through a two-stage heat exchanger, and is discharged after being purified;
6) the heat exchanged by the first-stage heat exchanger is reused for energy supply of the anoxic zone, and the heat exchanged by the second-stage heat exchanger is reused for the anoxic zone to supplement energy consumption of the anoxic zone;
7) and ash slag generated after combustion is discharged out of the system through an ash discharge port of the combustion area.
The urban and rural mixed household garbage is one or more of kitchen garbage, fruit and vegetable garbage, waste paper, packaging boxes, plastic products, wood products and the like.
The ash produced after the reaction has a thermal ignition loss of less than 3%.
The invention has the advantages and beneficial effects that:
the reaction process technology has the advantages of simple and convenient operation, simple flow, high automation degree, small occupied area and the like, and can effectively reduce energy consumption by recycling heat energy generated by electromagnetic heating and combustion in a gradient manner; meanwhile, the technology effectively changes a pyrolysis gasification and combustion separate system in the existing treatment process, realizes effective integration of the technology, and realizes synchronous operation of pyrolysis gasification and combustion in one system; the organic dry garbage recycling rate can reach more than 90% by the technology of the invention; the application of the technology can effectively solve the problems of high cost and environmental pollution of waste disposal, and has remarkable environmental, social and economic benefits.
Drawings
Fig. 1 is a schematic front view structure diagram of an integrated organic garbage pyrolysis gasification combustion reaction device.
Fig. 2 is a plan view of the separator II.
In the figure: 1. screw conveyer 2, organic rubbish feed inlet 3, integrated device feed inlet
4. Electromagnetic generator 5, oxygen-free zone 6, air separation equipment 7, nitrogen gas conveying pipeline 8, oxygen gas injection port
9. Partition plate I10, anoxic zone 11, partition plate II 12, combustion zone 13 and flue gas outlet
14. Primary heat exchanger 15, secondary heat exchanger 16, flue gas pipeline 17 and primary heat exchange pipe
18. Anoxic zone heat exchange jacket 19, secondary heat exchange tube 20, anoxic zone heat exchange jacket
21. The device comprises a flue gas purification device 22, a tail gas discharge port 23, an ash discharge port 24 and a partition plate groove.
Detailed Description
The present invention is further described in detail by the following embodiments with reference to the drawings, but the technical content described in the embodiments is illustrative and not restrictive, and the scope of the present invention should not be limited thereby.
Example 1:
an integrated organic garbage pyrolysis gasification combustion reaction device comprises a screw conveyor 1, an integrated device 3, a primary heat exchanger 14, a secondary heat exchanger 15, an air separator 6 and a tail gas purification device 21. The system is provided with a feed inlet 2, an ash outlet 23, a tail gas outlet 22 and a pipeline, and organic garbage and nitrogen separated by an air separator 6 are mixed by a screw conveyor 1 and then are sent into an integrated device 3 from the bottom. The bottom of the device is provided with an electromagnetic pulse generator 4 which provides a heat source for the organic garbage in a bottom oxygen-free area 5; organic materials continuously enter the integrated device 3, so that the materials are continuously lifted upwards; a partition plate I9 is arranged between the anoxic zone 10 and the anoxic zone 5, and the material enters the anoxic zone 10 through a channel in the middle of the partition plate I; the anoxic zone 10 is connected with the combustion zone 12 through a partition plate II11, oxygen is sprayed into the combustion zone 12 through an oxygen spraying inlet 8, combustion is carried out on the partition plate II, and ash generated by combustion is discharged through an ash discharging port 23 along a partition plate groove 24; gas and fly ash generated by combustion enter a flue gas pipeline 16 through a flue gas outlet 13, a primary heat exchanger 14 and a secondary heat exchanger 15 are arranged in the flue gas pipeline, and heat exchanged by the primary heat exchanger 14 enters an anoxic zone heat exchange jacket 18 through a primary heat exchange pipe 17 to provide a heat source for an anoxic zone; the heat exchanged by the secondary heat exchanger 15 enters the heat exchange jacket 20 of the anoxic zone through the secondary heat exchange tube 19 to provide a heat source for the anoxic zone; the gas after heat exchange enters a flue gas purification device 21, and the purified tail gas is directly discharged through a tail gas discharge port 22.
In this embodiment, the screw conveyor, the integrated device, the air separation equipment, and the flue gas purification device are all produced by tianjin reputed science and technology development limited.
The following embodiment is to carry out the degradation application of the mixed domestic garbage by utilizing the urban and rural mixed domestic garbage on-site low-temperature integrated treatment device.
Example 2:
an application method of an integrated organic garbage pyrolysis gasification combustion reaction device adopts continuous addition of organic garbage, tail gas generated by gradual decomposition by using different heat energy of an anaerobic zone, an anoxic zone and a combustion zone in the integrated device is purified and then discharged, ash and slag are discharged through an ash discharge port, so that the integrated organic garbage is efficiently reduced, harmless and recycled, and the pollution of organic wastes in household garbage to the environment is effectively removed, and the method comprises the following steps:
1) mixing organic garbage consisting of kitchen garbage, fruit and vegetable garbage, waste paper, packaging boxes, plastic products and wood products with nitrogen by using a screw conveyor, feeding the mixture into an integrated device, entering an anoxic zone, starting electromagnetic pulses, providing a heat source for the organic garbage, and keeping the temperature of the anoxic zone at 500 ℃ and the conveying capacity at 1 t/h;
2) with the continuous entering of the organic garbage into the anoxic zone, the organic garbage stays in the anoxic zone for 6 hours, and 32% of the organic garbage is decomposed to generate combustible gas, oxygen, tar gas and other gases;
3) the organic garbage and gas which are subjected to the pyrolysis reaction in the anoxic zone enter the anoxic zone, the temperature of the anoxic zone is 900 ℃, the retention time is 1 hour, and 65 percent of the organic garbage is decomposed to generate mixed gas;
4) the organic garbage and gas reacted in the anoxic zone enter a combustion zone, and the organic garbage and the gas are mixed with high-purity oxygen obtained by an air separation device in the combustion zone and then are combusted, wherein the combustion temperature is 1250 ℃;
5) high-temperature gas generated after combustion enters a tail gas purification device after passing through a two-stage heat exchanger, and is discharged after being purified;
6) the heat exchanged by the first-stage heat exchanger is reused for energy supply of the anoxic zone, and the heat exchanged by the second-stage heat exchanger is reused for the anoxic zone to supplement energy consumption of the anoxic zone;
7) and ash slag generated after combustion is discharged out of the system through an ash discharge port of the combustion area.
The ash produced after the reaction has a thermal ignition loss of less than 3%.
The invention has the advantages and beneficial effects that:
the technology of the invention can quickly realize the reduction and the harmlessness of the rural mixed domestic garbage, the resource rate of the organic dry garbage reaches 90 percent, the operation cost is low, the occupied area is small, the automation degree is high, the operation cost is low, and no toxic and harmful substances such as dioxin and the like are discharged.
Example 3:
an application method of an integrated organic garbage pyrolysis gasification combustion reaction device adopts continuous addition of organic garbage, tail gas generated by gradual decomposition by using different heat energy of an anaerobic zone, an anoxic zone and a combustion zone in the integrated device is purified and then discharged, ash and slag are discharged through an ash discharge port, so that the integrated organic garbage is efficiently reduced, harmless and recycled, and the pollution of organic wastes in household garbage to the environment is effectively removed, and the method comprises the following steps:
1) mixing organic garbage consisting of kitchen garbage, fruit and vegetable garbage, waste paper and plastic products with nitrogen by using a screw conveyor, feeding the mixture into an integrated device, entering an anoxic zone, starting electromagnetic pulse, providing a heat source for the organic garbage, and keeping the temperature of the anoxic zone at 600 ℃ and the conveying capacity at 1.6 t/h;
2) with the continuous entering of the organic garbage into the anoxic zone, the organic garbage stays in the anoxic zone for 6 hours, 35% of the organic garbage is decomposed and gas such as combustible gas, oxygen, tar gas and the like is generated;
3) the organic garbage and gas which are subjected to the pyrolysis reaction in the anoxic zone enter the anoxic zone, the temperature of the anoxic zone is 850 ℃, the retention time is 3 hours, and 62 percent of the organic garbage is decomposed to generate mixed gas;
4) the organic garbage and gas reacted in the anoxic zone enter a combustion zone, and the organic garbage and the gas are mixed with high-purity oxygen obtained by an air separation device in the combustion zone and then are combusted, wherein the combustion temperature is 1200 ℃;
5) high-temperature gas generated after combustion enters a tail gas purification device after passing through a two-stage heat exchanger, and is discharged after being purified;
6) the heat exchanged by the first-stage heat exchanger is reused for energy supply of the anoxic zone, and the heat exchanged by the second-stage heat exchanger is reused for the anoxic zone to supplement energy consumption of the anoxic zone;
7) and ash slag generated after combustion is discharged out of the system through an ash discharge port of the combustion area.
The ash produced after the reaction has a thermal ignition loss of less than 3%.
The technology of the invention can quickly realize the reduction and the harmlessness of the rural mixed domestic garbage, the resource rate of the organic dry garbage reaches 90 percent, the operation cost is low, the occupied area is small, the automation degree is high, the operation cost is low, and no toxic and harmful substances such as dioxin and the like are discharged.
Claims (4)
1. An integrated organic garbage pyrolysis gasification combustion reaction device comprises a screw conveyor, an integrated device, a primary heat exchanger, a secondary heat exchanger, an air separator and a tail gas purification device; the system is provided with a feed inlet, an ash outlet, a tail gas outlet and a pipeline, and organic garbage and nitrogen separated by an air separator are mixed by a screw conveyor and then are sent into the integrated device from the bottom; the bottom of the device is provided with an electromagnetic pulse generator which provides a heat source for organic garbage in a bottom oxygen-free area; organic materials continuously enter the integrated device, so that the materials are continuously lifted upwards; a partition plate I is arranged between the anoxic zone and the anoxic zone, and the material enters the anoxic zone through a channel in the middle of the partition plate I; the anoxic zone is connected with the combustion zone through a partition plate II, oxygen is sprayed from an oxygen spraying inlet in the combustion zone, combustion is carried out on the partition plate II, and ash generated by combustion is discharged through an ash discharging port along a partition plate groove; gas and fly ash generated by combustion enter a flue gas pipeline through a flue gas outlet, a primary heat exchanger and a secondary heat exchanger are arranged in the flue gas pipeline, and heat exchanged by the primary heat exchanger enters a heat exchange jacket of an anoxic zone through a primary heat exchange pipe to provide a heat source for the anoxic zone; the heat exchanged by the secondary heat exchanger enters the heat exchange jacket of the anoxic zone through the secondary heat exchange pipe to provide a heat source for the anoxic zone; the gas after heat exchange enters a flue gas purification device, and the purified tail gas is directly discharged through a tail gas discharge port.
2. The application of the integrated organic garbage pyrolytic gasification combustion reaction device according to claim 1, wherein the organic garbage is continuously added, tail gas generated by gradual decomposition by using different heat energy of the anaerobic, anoxic and combustion zones in the integrated device is purified and discharged, ash and slag are discharged through an ash discharge port, so that the integrated organic garbage pyrolytic gasification combustion reaction device is capable of realizing the integrated efficient reduction, harmlessness and recycling of the organic garbage, and effectively removing the pollution of organic wastes in domestic garbage to the environment, and the steps are as follows:
1) mixing organic garbage with nitrogen by using a screw conveyer, feeding the mixture into an integrated device, entering an anoxic zone, starting electromagnetic pulse to provide a heat source for the organic garbage, and keeping the temperature of the anoxic zone at 400-;
2) with the continuous entering of the organic garbage into the anoxic zone, the organic garbage stays in the anoxic zone for 4-6 hours, and 20-35% of the organic garbage is decomposed to generate combustible gas, oxygen, tar gas and other gases;
3) the organic garbage and gas after the pyrolysis reaction in the anoxic zone enter the anoxic zone, the temperature of the anoxic zone is 700-;
4) the organic garbage and gas reacted in the anoxic zone enter a combustion zone, and the organic garbage and the gas are mixed with high-purity oxygen obtained by an air separation device in the combustion zone and then are combusted, wherein the combustion temperature is 1000-;
5) high-temperature gas generated after combustion enters a tail gas purification device after passing through a two-stage heat exchanger, and is discharged after being purified;
6) the heat exchanged by the first-stage heat exchanger is reused for energy supply of the anoxic zone, and the heat exchanged by the second-stage heat exchanger is reused for the anoxic zone to supplement energy consumption of the anoxic zone;
7) and ash slag generated after combustion is discharged out of the system through an ash discharge port of the combustion area.
3. The application of the integrated organic garbage pyrolysis gasification combustion reaction device according to claim 2, wherein: the urban and rural mixed household garbage is one or more of kitchen garbage, fruit and vegetable garbage, waste paper, packaging boxes, plastic products, wood products and the like.
4. The application of the integrated organic garbage pyrolysis gasification combustion reaction device according to claim 2, wherein: the ash produced after the reaction has a thermal ignition loss of less than 3%.
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Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| JPH1150059A (en) * | 1997-08-05 | 1999-02-23 | Ootsuka:Kk | Garbage-carbonizing treatment apparatus |
| JPH11138123A (en) * | 1997-11-06 | 1999-05-25 | Babcock Hitachi Kk | Waste gasification device and waste gasification power generation system |
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