CN115041508A - Distributed domestic garbage low-temperature reduction harmless treatment method - Google Patents
Distributed domestic garbage low-temperature reduction harmless treatment method Download PDFInfo
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- CN115041508A CN115041508A CN202210647868.5A CN202210647868A CN115041508A CN 115041508 A CN115041508 A CN 115041508A CN 202210647868 A CN202210647868 A CN 202210647868A CN 115041508 A CN115041508 A CN 115041508A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/40—Destroying solid waste or transforming solid waste into something useful or harmless involving thermal treatment, e.g. evaporation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/30—Particle separators, e.g. dust precipitators, using loose filtering material
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/02—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography
- B01D53/04—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols by adsorption, e.g. preparative gas chromatography with stationary adsorbents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B03—SEPARATION OF SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS; MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C—MAGNETIC OR ELECTROSTATIC SEPARATION OF SOLID MATERIALS FROM SOLID MATERIALS OR FLUIDS; SEPARATION BY HIGH-VOLTAGE ELECTRIC FIELDS
- B03C3/00—Separating dispersed particles from gases or vapour, e.g. air, by electrostatic effect
- B03C3/017—Combinations of electrostatic separation with other processes, not otherwise provided for
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B3/00—Destroying solid waste or transforming solid waste into something useful or harmless
- B09B3/30—Destroying solid waste or transforming solid waste into something useful or harmless involving mechanical treatment
- B09B3/35—Shredding, crushing or cutting
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B09—DISPOSAL OF SOLID WASTE; RECLAMATION OF CONTAMINATED SOIL
- B09B—DISPOSAL OF SOLID WASTE
- B09B2101/00—Type of solid waste
- B09B2101/25—Non-industrial waste, e.g. household waste
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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
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/78—Recycling of wood or furniture waste
Abstract
The invention provides a low-temperature reduction harmless treatment method for distributed household garbage, and relates to the technical field of household garbage treatment. The distributed domestic garbage low-temperature reduction harmless treatment method is characterized by comprising the following steps: the method comprises the following steps: the method comprises the steps of S1 crushing pretreatment, S2 material preheating, S3 deep cracking, S4 residue collection and waste heat recovery, and the links of centralized pretreatment, feeding, crushing, preheating, cracking, purification, ash collection, waste heat recovery and the like of the dispersed domestic garbage are completed. The low-oxygen low-temperature cracking technology is utilized to effectively carry out on-site reduction and harmlessness on the dispersed household garbage, the generation of dangerous objects such as dioxin and the like is avoided, combustible gas in the cracking gas belongs to clean energy and is used as auxiliary energy and waste heat recovery, the reduction rate reaches 92-98%, the amount of solid residues is small and harmless, the residues can be used as fertilizers for common forest trees and flowers and plants, and the use efficiency of comprehensive energy of substances is improved.
Description
Technical Field
The invention relates to the technical field of household garbage treatment, in particular to a distributed household garbage low-temperature reduction harmless treatment method.
Background
The household 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, a packaging box, plastic products, wood products, lime soil, waste paper, waste plastics, cigarette ends, fallen leaf branches, waste carbohydrates and the like.
In the process of treating the domestic garbage, the existing domestic garbage in the market at present often has two defects when in use, firstly, the existing domestic garbage treatment method often cannot realize the reduction and harmless treatment of the dispersed domestic garbage when in use, and secondly, the existing domestic garbage treatment method often cannot realize the reduction of the labor intensity of users when in use.
Disclosure of Invention
Aiming at the defects of the prior art, the invention provides a distributed domestic garbage low-temperature reduction harmless treatment method, which solves the problems that the reduction harmless treatment of the domestic garbage can not be realized and the labor intensity of users can not be reduced when the existing domestic garbage treatment method is used.
In order to achieve the purpose, the invention is realized by the following technical scheme: a low-temperature reduction harmless treatment method for distributed household garbage comprises the following steps:
s1 crushing pretreatment: the scattered household garbage is subjected to centralized treatment, the feeding machine is used for feeding the garbage, the garbage enters the crusher, the crusher can crush the garbage, and the crushed garbage falls onto the material conveyor;
preheating S2: the material conveying machine continuously operates, crushed garbage can be conveyed into the preheating tank, the crushed garbage can be preheated through the preheating tank, the temperature of materials at the preheating end is 140-;
s3 deep lysis: continuously heating the preheated garbage until the garbage is heated to 350 ℃ of 310-;
s4 residue collection and waste heat recovery: and conveying the cracking residues subjected to deep cracking into a collector, completing waste heat recovery and cooling in the collector to 160-200 ℃, and directly bagging the recovered residues.
Preferably, the household garbage to be treated is non-inorganic thermally-cleavable organic matter, and is any one or a combination of more of waste paper, waste plastics, cigarette ends, deciduous branches, and waste carbohydrates.
Preferably, the feeder in S1 is a screw feeder, and the crusher in S1 is a twin-roll or multi-roll crushing feeder.
Preferably, the induced draft fan in the S2 is a variable frequency induced draft fan.
Preferably, the purification process of the gas in the step S2 includes condensation, dust removal, neutralization and recycling, and includes the following steps:
a1, condensing, namely, carrying out air cooling condensation on the recovered waste heat pyrolysis gas to separate moisture;
a2, dust removal, which is to enrich smoke dust particles and tar droplets by using an electrostatic field;
a3, neutralizing, namely absorbing carbon dioxide or other acid gases or residual particles in the cracking gas after condensation and dust removal by using a honeycomb calcium oxide filling layer and an activated carbon layer;
a4, recycling the residual combustible gas after the gas is dedusted and purified, including synthesis gas and other non-condensable organic gases, such as CO and H 2 、CH 4 、C m H n And introducing an infrared burner for combustion, and providing waste heat for preheating the domestic garbage.
Preferably, the structures in S1-S4 are integrated into a whole by integrated optimization designs such as a bearing member, a gravity balance, an inner space structure layout, an outer hoisting mechanism, a quick transfer connecting mechanism and the like, so that high bearing strength, stable gravity, easy expansion, easy hoisting and easy transportation are ensured, the bearing member achieves a lightweight integrated design under the condition of meeting the requirement of 100% of the whole bearing margin, can bear the optimized design of 17.5-22.5 tons of total gross weight, can provide the optimized structural design of the structure bearing capacity and the space layout for all units in the whole method, and provides bearing and integrated spaces for other key links.
Preferably, in the step S4, the waste heat recovery is to recover the waste heat of the cracked gas and the cracked residues by high-efficiency tubular countercurrent heat exchange, and an auxiliary heat source is provided by a combustible gas infrared combustion device coupled with the recycling step in the gas dust removal link, the key link is the important embodiment of low energy consumption in the whole treatment method, and the waste heat recovery is realized to be 50-60%.
Preferably, the steps S1-S4 are all in a micro negative pressure environment, the air pressure in the integrated space is 0.08-0.09Mpa so as to ensure no odor or harmful gas is overflowed, the step S3 is intermittently and periodically closed, the feed end is closed after the preheating section provides materials, the feed end is restarted when the deep cracking is completed, and the steps are repeated
Preferably, the temperature, humidity, pressure, flow rate, voltage and current of each key link step of S1-S4 are regulated and controlled by a regulating and controlling mechanism, and the regulating and controlling mechanism consists of a monitoring sensor, a response controller, a data exchange center and a software system, and can complete online monitor, online control and emergency control of all instruments and meters.
The invention provides a low-temperature reduction harmless treatment method for distributed household garbage. The method has the following beneficial effects:
1. the invention can effectively carry out on-site reduction and harmlessness on the dispersed household garbage through an anaerobic low-temperature cracking technology, avoids the generation of dangerous objects such as dioxin and the like, realizes the reduction rate of 95 percent by recycling combustible gas in the cracking gas as clean energy and auxiliary energy and waste heat, has less and harmless solid residue, can use the residue as fertilizer for common forest trees and flowers and plants, improves the use efficiency of comprehensive energy of substances, has the characteristic of low carbon, can effectively realize energy conservation and consumption reduction, meets the requirement of green development, provides guarantee for up-to-standard emission of gas through a gas purification technology, effectively avoids the pollution of the emitted gas to the surrounding environment, and can realize the reduction and harmlessness treatment on the dispersed household garbage.
2. According to the invention, the operation process is intelligent and convenient through the regulating mechanism, heavy operation of personnel is avoided, occupational diseases caused by contact of personnel and hazardous substances are also avoided, the physical and mental health of the personnel is guaranteed, meanwhile, the device is integrated into a whole, the device has the characteristics of remarkable maneuverability, is easy to hoist and transport safely, the land utilization rate is improved, and meanwhile, the practical problems of high requirement on site selection of garbage disposal and difficulty in land acquisition are effectively avoided, so that the labor intensity of the user can be reduced.
Drawings
FIG. 1 is a schematic flow chart of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
the embodiment of the invention provides a low-temperature reduction harmless treatment method for distributed household garbage, which comprises the following steps:
s1, centralized treatment is carried out on the dispersed household garbage, the garbage is fed by a feeding machine to enter a crusher, the garbage can be crushed by the crusher, and the crushed garbage falls onto a material conveying machine;
s2, the conveyor continuously operates, crushed garbage can be conveyed into the preheating tank, the crushed garbage can be preheated through the preheating tank, the temperature of a material at the preheating end is 140 ℃, water vapor generated in the preheating process can be purified through the induced draft fan and then is guided into the waste heat recovery system, and the waste heat recovery technology has the characteristic of low carbon, can effectively realize energy conservation and consumption reduction, and meets the requirement of green development;
s3, continuously heating the preheated garbage until the garbage is heated to 310 ℃, and carrying out low-oxygen thermal cracking on the garbage, wherein the low-oxygen thermal cracking refers to a process that under an oxygen-free or low-oxygen environment, biomass is heated and heated to cause molecular decomposition to generate coke, condensable liquid and gas products, and gas generated in the low-oxygen thermal cracking is synthesis gas and other combustible gas, a small amount of tar droplets, carbon dioxide and water;
s4, conveying the cracked residues subjected to deep cracking into a collector, recovering waste heat in the collector, cooling to 160 ℃, wherein the reduction rate reaches 92%, directly bagging the recovered residues, and the residues are small in solid residue and harmless, can be used as fertilizers for common forest trees and flowers and plants, and improve the use efficiency of comprehensive energy of substances.
The domestic garbage to be treated is non-inorganic thermally-cleavable organic matter, and is any one or combination of waste paper, waste plastics, cigarette ends, fallen leaf branches and waste carbohydrates.
The feeder in the S1 is a screw feeder, and the crusher in the S1 is a double-roller or multi-roller crushing feeder.
And the induced draft fan in the S2 is a variable-frequency induced draft fan.
The purification process of the gas in the S2 comprises condensation, dust removal, neutralization and recycling, and comprises the following steps:
a1, condensing, namely, carrying out air cooling condensation on the recovered waste heat pyrolysis gas to separate moisture;
a2, dust removal, which is to enrich smoke dust particles and tar droplets by using an electrostatic field;
a3, neutralizing, namely absorbing carbon dioxide or other acid gases or residual particles in the cracking gas after condensation and dust removal by using a honeycomb calcium oxide filling layer and an activated carbon layer;
a4, recycling the residual combustible gas after the gas is dedusted and purified, including synthesis gas and other non-condensable organic gases, such as CO and H 2 、CH 4 、C m H n The method comprises the steps of introducing an infrared burner for combustion, preheating domestic garbage to provide waste heat, collecting condensate and dust in a key link of gas dust removal and purification in respective storage tanks, separating and purifying the condensate by oil and water, discharging the water phase, using the oil phase as heavy oil, further carbonizing the dust, and using the dust as activated carbon for purification.
The structures in S1-S4 are integrated into a whole, and are integrated and optimized by a bearing member, a gravity center balance mechanism, an inner space structure layout, an outer hoisting mechanism, a quick transfer connecting mechanism and the like, so that the high bearing strength, the stable gravity center, the easy expansion, the easy hoisting and the easy transportation are ensured, the bearing component achieves the integrated design of light weight under the condition of meeting the condition that the whole bearing margin is 100 percent, and can bear the optimized design of 17.5 tons of total gross weight, an optimized structural design of structural load-bearing capacity and spatial layout can be provided for all cells of the overall process, and provides bearing and integrated space for other key links, the stable energy supply of the equipment in S1-S4 is to utilize a power grid to directly or a photovoltaic power supply to provide stable power for all equipment and instruments, and comprises power transformation conversion, energy metering and real-time power monitoring, 380v, 220v, 0-120 v alternating current and 0-48 v direct current can be stably provided.
Remainder of S4The heat recovery is to recover the waste heat of the cracked gas and cracked residues by high-efficiency tubular countercurrent heat exchange, and provide an auxiliary heat source by a combustible gas infrared combustion device coupled with the recycling step in the gas dust removal link, the key link is the important embodiment of low energy consumption in the whole treatment method, the waste heat recovery is realized to 50 percent, and the material of a heat exchanger in the high-efficiency tubular countercurrent heat exchange is high-temperature resistant and can resist acid gas such as NO x 、SO 2 、HCl、H 2 S、P 2 O 5 And the like.
The steps S1-S4 are all in a micro negative pressure environment, the air pressure in the integrated space is 0.08Mpa, so that odor or harmful gas cannot overflow, the step S3 is intermittently and periodically closed, the feed end is closed after materials are provided by the preheating section, the feed end is restarted after deep cracking is completed, and the process is repeated.
The temperature, the humidity, the pressure, the flow rate, the voltage and the current of each key link step of S1-S4 are regulated and controlled by a regulation and control mechanism, the regulation and control mechanism consists of a monitoring sensor, a response controller, a data exchange center and a software system, online monitors, online controls and emergency controls of all instruments and meters can be completed, the operation process is intelligent and convenient through the regulation and control mechanism, heavy operation of personnel is avoided, occupational diseases caused by contact of personnel and hazardous substances are avoided, guarantee is provided for physical and mental health of the personnel, the monitoring sensor, the response controller and connecting circuits of each key link step are uniformly distributed, high-temperature, high-humidity and high-corrosion areas are avoided, and corresponding prevention and control measures are taken.
Example two:
the embodiment of the invention provides a low-temperature reduction harmless treatment method for distributed household garbage, which comprises the following steps:
s1, centralized treatment is carried out on the dispersed household garbage, the garbage is fed by a feeding machine to enter a crusher, the garbage can be crushed by the crusher, and the crushed garbage falls onto a material conveying machine;
s2, continuously operating the material conveyor, conveying the crushed garbage into a preheating tank, preheating the crushed garbage through the preheating tank, wherein the temperature of the material at the preheating end is 160 ℃, and purifying water vapor generated in the preheating process by an induced draft fan and then introducing the purified water vapor into a waste heat recovery system;
s3, continuously heating the preheated garbage until the garbage is heated to 350 ℃, and carrying out low-oxygen thermal cracking on the garbage, wherein the gas generated in the low-oxygen thermal cracking is synthesis gas and other combustible gas, a small amount of tar droplets, carbon dioxide and water;
s4, conveying the cracking residues subjected to deep cracking into a collector, recovering waste heat in the collector, cooling to 200 ℃, wherein the decrement rate reaches 98%, and directly bagging the recovered residues.
The domestic waste to be treated is non-inorganic thermally-cracked organic substance, and is any one or combination of waste paper, waste plastics, cigarette ends, fallen leaf branches and waste carbohydrates.
The feeder in S1 is a screw feeder, and the crusher in S1 is a two-roller or multi-roller crushing feeder.
And the induced draft fan in the S2 is a variable-frequency induced draft fan.
The purification process of the gas in the S2 comprises condensation, dust removal, neutralization and recycling, and comprises the following steps:
a1, condensing, namely, carrying out air cooling condensation on the recovered waste heat pyrolysis gas to separate moisture;
a2, dust removal, which is to enrich smoke dust particles and tar droplets by using an electrostatic field;
a3, neutralizing, namely absorbing carbon dioxide or other acid gases or residual particles in the cracking gas after condensation and dust removal by using a honeycomb calcium oxide filling layer and an activated carbon layer;
a4, recycling combustible gas (including synthesis gas and other non-condensable organic gases such as CO and H) left after gas dust removal and purification 2 、CH 4 、C m H n ) And introducing an infrared burner for combustion, and providing waste heat for preheating the domestic garbage.
The structures in S1-S4 are integrated into a whole, and are integrated and optimized by a bearing member, a gravity center balance mechanism, an inner space structure layout, an outer hoisting mechanism, a quick transfer connecting mechanism and the like, so that the high bearing strength, the stable gravity center, the easy expansion, the easy hoisting and the easy transportation are ensured, the bearing component achieves the integrated design of light weight under the condition of meeting the requirement of 100 percent of the whole bearing margin, can bear the optimized design of 17.5 tons of total gross weight, an optimized structural design of structural load-bearing capacity and spatial layout can be provided for all cells of the overall process, and provides bearing and integrated space for other key links, the stable energy supply of the equipment in S1-S4 is to provide stable electric power for all equipment and instruments by using a power grid directly or a photovoltaic power supply, and comprises power transformation conversion, energy metering and real-time electric power monitoring, 380v, 220v, 0-120 v alternating current and 0-48 v direct current can be stably provided.
In the S4, the waste heat recovery is to recover the waste heat of the cracked gas and the cracked residues through efficient tubular countercurrent heat exchange, and an auxiliary heat source is provided by a combustible gas infrared combustion device coupled with the recycling step in the gas dust removal link, the key link is the important embodiment of low energy consumption in the whole treatment method, and the waste heat recovery is up to 60%.
The steps S1-S4 are all in a micro-negative pressure environment, the air pressure in the integrated space is 0.09Mpa, so that odor or harmful gas cannot overflow, the step S3 is intermittently and periodically closed, the feed end is closed after materials are provided by the preheating section, the feed end is restarted after deep cracking is completed, and the process is repeated.
The temperature, humidity, pressure, flow rate, voltage and current of each key link step of S1-S4 are regulated and controlled by a regulation and control mechanism, the regulation and control mechanism consists of a monitoring sensor, a response controller, a data exchange center and a software system, and can complete online monitor, online control and emergency control of all instruments and meters.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (9)
1. A low-temperature reduction harmless treatment method for distributed household garbage is characterized by comprising the following steps: the method comprises the following steps:
s1 crushing pretreatment: the scattered household garbage is treated in a centralized manner, a feeding machine is used for feeding the garbage, the garbage enters the crusher, the crusher can crush the garbage, and the crushed garbage falls onto a material conveying machine;
preheating S2: the material conveying machine continuously operates, crushed garbage can be conveyed into the preheating tank, the crushed garbage can be preheated through the preheating tank, the temperature of materials at the preheating end is 140-;
s3 deep lysis: continuously heating the preheated garbage until the garbage is heated to 350 ℃ of 310-;
s4 residue collection and waste heat recovery: and conveying the cracking residues subjected to deep cracking into a collector, completing waste heat recovery and cooling in the collector to 160-200 ℃, and directly bagging the recovered residues.
2. The method for low-temperature reduction and harmless treatment of the distributed household garbage according to claim 1, which is characterized in that: the domestic waste to be treated is non-inorganic thermally-cracked organic substance, and is any one or combination of waste paper, waste plastics, cigarette ends, fallen leaf branches and waste carbohydrates.
3. The method for low-temperature reduction and harmless treatment of the distributed household garbage according to claim 1, which is characterized in that: the feeder in the S1 is a screw feeder, and the crusher in the S1 is a double-roller or multi-roller crushing feeder.
4. The method for low-temperature reduction and harmless treatment of the distributed household garbage according to claim 1, characterized by comprising the following steps: and the induced draft fan in the S2 is a variable-frequency induced draft fan.
5. The method for low-temperature reduction and harmless treatment of the distributed household garbage according to claim 1, which is characterized in that: the purification process of the gas in the S2 comprises condensation, dust removal, neutralization and recycling, and comprises the following steps:
a1, condensing, namely, carrying out air cooling condensation on the recovered waste heat pyrolysis gas to separate moisture;
a2, dust removal, which is to enrich smoke dust particles and tar droplets by using an electrostatic field;
a3, neutralizing, namely absorbing carbon dioxide or other acid gases or residual particles in the cracking gas after condensation and dust removal by using a honeycomb calcium oxide filling layer and an activated carbon layer;
a4, recycling the residual combustible gas after the gas is dedusted and purified, including synthesis gas and other non-condensable organic gases, such as CO and H 2 、CH 4 、C m H n And introducing an infrared burner for combustion.
6. The method for low-temperature reduction and harmless treatment of the distributed household garbage according to claim 1, which is characterized in that: the structures in the S1-S4 are integrated into a whole through integrated optimization design of a bearing member, a gravity center balance mechanism, an inner space structure layout, an outer hoisting mechanism, a quick transfer connecting mechanism and the like, so that the bearing member is high in bearing strength, stable in gravity center, easy to expand, hoist and transport, achieves light-weight integrated design under the condition that the bearing member meets the requirement of 100% of the total bearing margin, can bear the optimized design of 17.5-22.5 tons of total gross weight, can provide the optimized structural design of structural bearing capacity and space layout for all units in the whole method, and provides bearing and integrated space for other key links.
7. The method for low-temperature reduction and harmless treatment of the distributed household garbage according to claim 1, which is characterized in that: in the step S4, the waste heat recovery is to recover the waste heat of the cracked gas and cracked residues by high-efficiency tubular countercurrent heat exchange, and an auxiliary heat source is provided by a combustible gas infrared combustion device coupled with the recycling step in the gas dust removal link.
8. The method for low-temperature reduction and harmless treatment of the distributed household garbage according to claim 1, which is characterized in that: the steps S1-S4 are all in a micro negative pressure environment, the air pressure in the integrated space is 0.08-0.09Mpa so as to ensure no odor or harmful gas to overflow, the step S3 is intermittently and periodically closed, the feed end is closed after the materials are provided by the preheating section, the feed end is restarted when the deep cracking is complete, and the process is repeated.
9. The method for low-temperature reduction and harmless treatment of the distributed household garbage according to claim 1, which is characterized in that: the temperature, the humidity, the pressure, the flow rate, the voltage and the current of each key link step of S1-S4 are regulated and controlled by a regulating and controlling mechanism, and the regulating and controlling mechanism consists of a monitoring sensor, a response controller, a data exchange center and a software system.
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| CN103464448A (en) * | 2013-09-23 | 2013-12-25 | 高州市中亮机械制造有限公司 | Garbage thermal cracking treatment technology |
| KR101400729B1 (en) * | 2014-01-29 | 2014-05-29 | 한국환경공단 | Power generation system and power generation method using gasification for domestic waste |
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2022
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001096256A (en) * | 1999-09-30 | 2001-04-10 | Jiro Sasaoka | Method and device for thermally recycling and reusing wastes |
| CN101352721A (en) * | 2007-07-23 | 2009-01-28 | 周鼎力 | Method for sequentially processing consumer waste |
| CN102719279A (en) * | 2012-07-03 | 2012-10-10 | 四川宏普微波科技有限公司 | Process for preparing gas by microwave carbon pyrolysis of municipal solid waste |
| CN103464448A (en) * | 2013-09-23 | 2013-12-25 | 高州市中亮机械制造有限公司 | Garbage thermal cracking treatment technology |
| KR101400729B1 (en) * | 2014-01-29 | 2014-05-29 | 한국환경공단 | Power generation system and power generation method using gasification for domestic waste |
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