CN112852490A - Efficient pyrolysis gasification equipment and method for heterogeneous organic solid waste - Google Patents
Efficient pyrolysis gasification equipment and method for heterogeneous organic solid waste Download PDFInfo
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- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
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- C10J3/00—Production of combustible gases containing carbon monoxide from solid carbonaceous fuels
- C10J3/72—Other features
- C10J3/82—Gas withdrawal means
- C10J3/84—Gas withdrawal means with means for removing dust or tar from the gas
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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
- F23G5/02—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
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- C10J2300/00—Details of gasification processes
- C10J2300/09—Details of the feed, e.g. feeding of spent catalyst, inert gas or halogens
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- C10J2300/00—Details of gasification processes
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- C10J2300/0913—Carbonaceous raw material
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- C10J2300/00—Details of gasification processes
- C10J2300/16—Integration of gasification processes with another plant or parts within the plant
- C10J2300/1603—Integration of gasification processes with another plant or parts within the plant with gas treatment
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Abstract
The invention provides high-efficiency pyrolysis gasification equipment and a method for heterogeneous organic solid wastes, wherein the heterogeneous organic solid wastes are dried, sorted and mixed by an organic solid waste sorting unit, and are sent into a pyrolysis gasification furnace through a spiral feeder, the carbon content in ash is identified through bottom slag image identification equipment, and the pyrolysis working condition of the pyrolysis gasification furnace is controlled through the carbon content; monitoring the combustion temperature and the pyrolysis temperature of the pyrolysis gasifier through temperature detection feedback equipment; monitoring pollutants generated by pyrolysis and gasification in real time through a flue gas real-time detection device; oil gas is separated by electric tar capture, pyrolysis gas is directionally absorbed by using MOFs materials in a product purification and collection device and is sent into a waste heat boiler, and heat is generated for drying organic solid waste; the invention utilizes a plurality of feedback devices to control the pyrolysis gasification system, ensures the highest efficiency of the pyrolysis gasification system, utilizes novel materials to directionally absorb pyrolysis gas, and improves the treatment capacity of domestic solid waste.
Description
Technical Field
The invention belongs to the field of pyrolysis gasification, and particularly relates to high-efficiency pyrolysis gasification equipment and method for heterogeneous organic solid wastes.
Background
With the rapid development of economy, the amount of generated organic solid wastes is increased day by day, the total amount of industrial solid wastes stockpiled throughout the year in China reaches 600-700 hundred million tons, and the solid waste wastes still contain higher energy, so that the environmental pressure can be relieved by fully utilizing the solid wastes, and the utilization rate of energy can be improved. In recent years, the development of pyrolysis gasification technology opens up a new way for treating solid waste garbage.
Pyrolysis gasification refers to a comprehensive technology for decomposing and converting macromolecular organic matters into micromolecular high-quality energy fuels under a certain temperature condition in an oxygen-deficient atmosphere, so as to realize energy utilization. Effectively converts the organic matters in the materials into usable forms, and has lower secondary pollution emission and higher energy utilization rate.
The existing pyrolysis gasification equipment mainly takes a fixed bed pyrolysis gasification furnace and a fluidized bed pyrolysis gasification furnace as main parts. The fixed bed type pyrolysis gasification furnace has simple structure, wide raw material adaptability, low sensitivity to slag formation and low gas fly ash content, but is only suitable for small-scale gasification operation and is difficult to realize large-scale production; fluidized bed formula pyrolysis gasifier is efficient, and the calorific value is high, but the structure is more complicated, has certain requirement to the granularity of fuel, homogeneity, water content, natural stack angle, and lacks the mummification letter sorting to the raw materials, and lacks high-quality product collection device, is unfavorable for pyrolysis gasification's utilization as a resource.
Disclosure of Invention
Aiming at the defects in the prior art, the invention provides equipment and a method for efficiently pyrolyzing and gasifying heterogeneous organic solid waste, and effectively solves the problems of raw material sorting and drying, product collection and waste heat utilization.
In order to achieve the purpose, the technical scheme adopted by the invention is as follows: the high-efficiency pyrolysis gasification equipment for the heterogeneous organic solid waste comprises an organic solid waste sorting platform, a belt conveyor, a feed inlet, a spiral feeder, a pyrolysis gasification furnace, a rotary grate, an electric tar precipitator, gas purification and collection equipment, a waste heat boiler, a slag outlet, a slag extractor, a water pool, a blower and an MOFs purification module;
the organic solid waste sorting platform is connected with a feed inlet of a spiral feeder through a belt conveyor, sorted organic solid waste is conveyed into a pyrolysis gasification furnace for pyrolysis gasification of the organic solid waste, primary air enters from the bottom of the pyrolysis gasification furnace through a blower, and slag enters a water tank through a slag outlet through a rotary furnace discharge and is transported out through a slag discharging machine;
discharging pyrolysis gas of the pyrolysis gasifier from the top of the pyrolysis gasifier, allowing the pyrolysis gas to enter an electric tar precipitator to remove tar in the pyrolysis gas, wherein the electric tar precipitator is connected with gas purification and collection equipment, an MOFs purification module is installed in the gas purification and collection equipment, purifying the pyrolysis gas through a metal organic framework compound material in the MOFs purification module, and adsorbing and separating H in the pyrolysis gas2、CH4And CO;
the gas purification and collection equipment is connected with the waste heat boiler, the purified pyrolysis gas is conveyed to the waste heat boiler for waste heat recovery, and the generated heat is conveyed to the organic solid waste sorting platform through a pipeline and used for drying organic solid waste.
Further, the organic solid waste sorting platform comprises a manual sorting platform and a mechanical sorting platform, organic solid waste is subjected to manual and mechanical double sorting, the calorific value of the solid waste entering the furnace is improved, and the solid waste is conveyed to the spiral feeder through the belt conveyor.
Further, the screw feeder is installed with an inclination of 15 ° to prevent viscous materials and materials having a large water content from being stuck in the feeder.
Furthermore, three thermocouples are installed in the pyrolysis gasifier, and the thermocouples are connected with temperature monitoring feedback equipment to monitor the pyrolysis and combustion temperatures in the pyrolysis gasifier; according to the combustion condition in the pyrolysis furnace, the primary air flow and the feeding speed of the organic solid waste are changed, so that the pyrolysis efficiency is improved.
Furthermore, the pyrolysis gasifier is respectively a preheating layer, a pyrolysis layer, a gasification layer, a combustion layer, a burnout layer and an ash layer from bottom to top, and a heat preservation layer is arranged outside the pyrolysis gasifier to reduce the heat dissipation of the furnace body. The preheating layer is kept at the temperature of 200 ℃ to preheat the organic solid waste entering the furnace, and the residual moisture in the organic solid waste is removed; the organic solid waste enters a pyrolysis layer to start pyrolysis, the temperature of the pyrolysis layer is kept at 550-700 ℃, and different pyrolysis temperatures are selected according to different product requirements; the combustion layer provides heat for the pyrolysis layer; the ash slag generated in the burning-out layer is cooled in the cold slag layer through the rotary grate, then is introduced into the water pool, and then is discharged through the slag extractor.
And further, identifying the carbon content of the ash slag discharged by the slag extractor through bottom slag image identification equipment, and controlling the pyrolysis working condition of the pyrolysis gasifier according to the residual carbon content in the ash slag in a feedback manner.
Furthermore, a pyrolysis gas discharge port of the pyrolysis gasification furnace is provided with a real-time flue gas monitoring device for detecting pollutants such as CO2, CO, NOx and the like generated by the pyrolysis gasification furnace.
Furthermore, four precipitation electrodes are arranged in the electrical tar precipitator and are provided with oil outlets, so that tar liquefaction and pyrolysis gas are separated and discharged through the oil outlets, and the discharged tar can be utilized by fractionation.
The invention also provides a high-efficiency pyrolysis gasification method of the heterogeneous organic solid waste, which comprises the following specific processes: heterogeneous organic solid waste gets into organic solid waste letter sorting platform after the heat that exhaust-heat boiler produced is dry, through manual sorting and mechanical sorting back, picks out the solid waste that is fit for pyrolysis gasification, gets into the feed inlet through band conveyer, sends into the pyrolysis gasifier through the spiral feeder and carries out the pyrolysis.
And cooling the pyrolyzed ash slag through a rotary grate, introducing the cooled ash slag into a water pool, and discharging the cooled ash slag through a slag discharging machine. The carbon content of the ash slag is identified through bottom slag image identification equipment, and the pyrolysis working condition of the pyrolysis gasifier is controlled according to the residual carbon content of the ash slag in a feedback mode. The primary air required by pyrolysis gasification is fed from the bottom of the pyrolysis gasification furnace through a blower, and the heat of combustion of the primary air is used for pyrolyzing the organic solid waste. The pyrolysis gasification furnace is provided with the thermocouple, the temperature of the furnace body is monitored in real time through the temperature monitoring feedback equipment, and the primary air flow and the feeding speed of the organic solid waste are changed according to the temperature in the furnace, so that the pyrolysis efficiency is improved.
Pyrolysis gas of the pyrolysis gasification furnace is discharged from the top of the pyrolysis gasification furnace, pollutants such as CO2, CO, NOx and the like generated by pyrolysis gasification of organic solid wastes are detected through a real-time flue gas monitoring device, then the pollutants enter an electric tar precipitator, and the tar is liquefied and separated from the pyrolysis gas through a precipitation electrode and discharged through an oil outlet. The separated pyrolysis gas enters gas purification and collection equipment, and is purified through an MOFs purification module to adsorb and separate H in the pyrolysis gas2、CH4And CO; and (4) sending the purified and separated pyrolysis gas into a waste heat boiler for waste heat recovery, and sending the generated waste heat to an organic solid waste sorting platform for drying organic solid waste.
Compared with the prior art, the invention has the beneficial effects that:
(1) the computer is used for monitoring the pyrolysis and gasification in real time, and the stability of the pyrolysis and gasification working condition in the furnace is ensured by adjusting the primary air quantity and the raw material charging quantity;
(2) the flue gas leaving the pyrolysis gasifier is monitored in real time, and reference data can be provided for screening of subsequent raw materials and control of pollutants;
(3) metal-organic framework Materials (MOFs) are used for directionally absorbing high-calorific-value combustible gas components in pyrolysis gas, so that the energy utilization rate of organic solid wastes is improved, and the economic benefit of understanding gasification is increased;
(4) compared with a common cyclone separator, the electric tar precipitator has better tar removal rate and improves the collection rate of gas products;
(5) through exhaust-heat boiler, the pyrolysis oil that the burning pyrolysis produced is to going into stove organic solid useless mummification, through this technology processing back, the organic solid useless clean free from admixture that obtains is favorable to the pyrolysis of useless admittedly in the pyrolysis furnace to the economic power of useless processing admittedly in county area has been increased.
Drawings
FIG. 1 is a schematic view of the heterogeneous organic solid waste high-efficiency pyrolysis gasification equipment of the invention.
The reference numbers in the figures are: 1. an organic solid waste sorting platform; 2. a manual sorting platform; 3. a mechanical sorting platform; 4. a belt conveyor; 5. a feed inlet; 6. a screw feeder; 7. a pyrolysis gasifier; 8. a thermocouple; 9. rotating the grate; 10. flue gas real-time monitoring equipment; 11. an electrical tar precipitator; 12. a precipitation pole; 13. an oil outlet; 14. a gas purification and collection device; 15. a waste heat boiler; 16. a slag outlet; 17. a slag discharging machine; 18. a pool; 19. a blower; 20. a temperature monitoring feedback device; a MOFs purification module; 22. and bottom slag image recognition equipment.
Detailed Description
The invention provides high-efficiency pyrolysis gasification equipment and method for heterogeneous organic solid waste. To clarify the object, technical scheme and advantages of the present invention, the present invention will be described in further detail with reference to the accompanying drawings and embodiments, and it should be noted that, for those skilled in the art, various changes and modifications can be made without departing from the principle of the present invention, and these changes and modifications are also considered to fall within the scope of the present invention.
As shown in fig. 1, the invention provides a high-efficiency pyrolysis gasification device for heterogeneous organic solid waste, which comprises an organic solid waste sorting platform 1, a belt conveyor 4, a feed inlet 5, a spiral feeder 6, a pyrolysis gasification furnace 7, a rotary grate 9, an electric tar precipitator 11, a gas purification and collection device 14, a waste heat boiler 15, a slag outlet 16, a slag extractor 17, a water pool 18, a blower 19 and an MOFs purification module 21;
the organic solid waste sorting platform 1 comprises a manual sorting platform 2 and a mechanical sorting platform 3, organic solid waste is subjected to manual and mechanical double sorting, the calorific value of solid waste entering a furnace is improved, and a winnowing machine is installed behind the organic solid waste sorting platform 1 to crush raw materials. The organic solid waste sorting platform 1 is connected with a feed port 5 of a screw feeder 6 through a belt conveyor 4, and the screw feeder 6 is installed in an inclined way at an angle of 15 degrees so as to prevent viscous materials and materials with high water content from sticking in the feeder. The spiral feeder 6 conveys the sorted organic solid waste into the pyrolysis gasifier 7 for pyrolysis gasification of the organic solid waste, primary air enters from the bottom of the pyrolysis gasifier 7 through a blower 19, and slag is conveyed out through a slag discharger 17;
Three thermocouples 8 are arranged in the pyrolysis gasifier 7, the thermocouples 8 are connected with a temperature monitoring feedback device 20, and the pyrolysis and combustion temperatures in the pyrolysis gasifier are monitored; according to the combustion condition in the pyrolysis furnace, the primary air flow and the feeding speed of the organic solid waste are changed, so that the pyrolysis efficiency is improved.
Pyrolysis gas of the pyrolysis gasifier 7 is discharged from the top of the pyrolysis gasifier 7, and a real-time flue gas monitoring device 10 is installed at a pyrolysis gas discharge port of the pyrolysis gasifier 7 and used for detecting pollutants such as CO2, CO, NOx and the like generated by the pyrolysis gasifier. The pyrolysis gas enters an electric tar precipitator 11, four precipitation electrodes 12 are arranged in the electric tar precipitator 11, an oil outlet 13 is formed in the electric tar precipitator 11, the tar is liquefied and separated from the pyrolysis gas and discharged through the oil outlet 13, and the discharged tar can be fractionated and utilized. What is needed isThe front pipeline of the electrical tar precipitator 11 is provided with an insulating layer to prevent tar from condensing in the pipeline. The electrical tar precipitator 11 is connected with a gas purification and collection device 14, an MOFs purification module 21 is installed in the gas purification and collection device 14, and the pyrolysis gas is purified through a metal organic framework compound material in the MOFs purification module 21, and H in the pyrolysis gas is adsorbed and separated2、CH4And CO; the gas purification and collection device is provided with a waste gas collection air bag.
The gas purification and collection device 14 is connected with the waste heat boiler 15, the purified pyrolysis gas is conveyed to the waste heat boiler 15 for waste heat recovery, and the generated heat is conveyed to the organic solid waste sorting platform 1 through a pipeline and used for drying the organic solid waste. The carbon content of the ash slag discharged by the slag discharging machine 17 is identified by the bottom slag image identification device 22, and the pyrolysis working condition of the pyrolysis gasifier is controlled according to the residual carbon content of the ash slag in a feedback mode.
As shown in fig. 1, the present invention further provides a high-efficiency pyrolysis gasification method for heterogeneous organic solid waste, which comprises the following specific processes: heterogeneous organic solid waste gets into organic solid useless letter sorting platform 1 after the heat that exhaust-heat boiler 15 produced is dry, through manual sorting platform 2 and mechanical letter sorting platform 3, picks out the solid useless that is fit for pyrolysis gasification, gets into feed inlet 5 through band conveyer 4 after the air separator is broken, carries out the pyrolysis in sending into pyrolysis gasifier 7 through spiral feeder 6.
The pyrolysis gasifier 7 is divided into five layers, namely a preheating layer, a pyrolysis layer, a combustion layer, a burnout layer and a cold slag layer from top to bottom. The preheating layer is kept at the temperature of 200 ℃ to preheat the organic solid waste entering the furnace, remove the residual moisture in the organic solid waste and make the organic solid waste reach a certain temperature; the organic solid waste enters a pyrolysis layer to start pyrolysis, the temperature of the pyrolysis layer is kept at 550-700 ℃, and different pyrolysis temperatures are selected according to different product requirements; the combustion layer provides heat for the pyrolysis layer; the ash slag generated in the burning layer is cooled in the cold slag layer through the rotary grate 9, then is introduced into the water pool 18 and is discharged through the slag extractor 17. The bottom slag image recognition equipment comprises a camera device and a computer, the carbon content of the ash slag is recognized through the bottom slag image recognition equipment 22, and the pyrolysis working condition of the pyrolysis gasifier is controlled in a feedback mode according to the residual carbon content of the ash slag. The required primary air of pyrolysis gasification is sent into from pyrolysis gasifier bottom through air-blower 19, gets into the combustion layer and reacts with the bed charge, provides the required heat of pyrolysis gasification, and the remaining incombustible gas of primary air through the burning takes the heat to get into the pyrolysis layer, carries out the pyrolysis to organic solid useless. It should be noted that 3 thermocouples 8 are arranged in the pyrolysis gasifier 7, the furnace body temperature is monitored in real time through the temperature monitoring feedback device 20, the primary air flow and the feeding speed of the organic solid waste are changed according to the furnace temperature, and therefore the pyrolysis efficiency is improved.
The flue gas of pyrolysis gasifier is discharged from pyrolysis gasifier top, through flue gas real-time supervision equipment 10, detects the pollutant that organic solid useless pyrolysis gasification produced, then gets into electrical tar precipitator 11, through sediment utmost point 12, makes tar liquefaction and pyrolysis gas separate and discharge through oil-out 13, and the tar of discharging can be utilized through subsequent fractionation. The separated pyrolysis gas enters a gas cleaning and collecting device 14. H is produced due to pyrolysis2And gases such as CO, light alkane and the like, the gas components are complex, so that three MOFs purification modules 21 are arranged in the gas purification and collection device 14 side by side, and the high-heat-value combustible gas in the pyrolysis gas is directionally absorbed by using Metal Organic Framework (MOFs) compound materials. MOFs are crystalline porous materials with periodic network structures formed by connecting inorganic metal centers (metal ions or metal clusters) and bridged organic ligands with each other through self-assembly. MOFs are an organic-inorganic hybrid material, also called coordination polymer, which is different from inorganic porous materials and common organic complexes, and have the characteristics of rigidity of inorganic materials and flexibility of organic materials, high porosity and good chemical stability. MOFs can adsorb and separate H due to the ability to control the pore structure and large specific surface area2、CO4The light alkanes have great potential in storing a large amount of fuel gas such as methane, hydrogen and the like. The pyrolysis gas (including methane, hydrogen and other light alkanes) purified and separated by the MOFs purification module 21 is sent to the waste heat boiler 15 for reuse, and the generated waste heat can be used for heterogeneous organic solidsAnd (4) drying the waste.
Example (b):
after pyrolysis is stable, sampling analysis is carried out on pyrolysis products and flue gas, and the obtained parameters are shown in table 1:
TABLE 1
| Sample (I) | Has water content of% | Calorific value kJ/kg | Proportion of pyrolysis gas% | Pyrolysis temperature C | CO mg/m3 |
| Refuse 1 | 19.8 | 17940 | 17 | 945 | 3 |
| Garbage 2 | 4.6 | 20370 | 21 | 1108 | 1.8 |
As can be seen from the data in Table 1, after the garbage pyrolysis device is used, the garbage with higher water content is dried by the waste heat of the garbage pyrolysis device and has similar pyrolysis effect and pyrolysis gas proportion to the garbage with lower water content; the CO concentration in the flue gas emission is lower than the national emission standard.
Finally, it should be noted that the above-mentioned list is only a specific embodiment of the present invention. It is obvious that the present invention is not limited to the above embodiments, but many variations are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the present invention are to be considered within the scope of the invention.
Claims (9)
1. The efficient pyrolysis gasification equipment for the heterogeneous organic solid waste is characterized by comprising an organic solid waste sorting platform (1), a belt conveyor (4), a feed inlet (5), a spiral feeder (6), a pyrolysis gasification furnace (7), a rotary grate (9), an electric tar precipitator (11), gas purification and collection equipment (14), a waste heat boiler (15), a slag outlet (16), a slag extractor (17), a water pool (18), an air blower (19) and an MOFs purification module (21);
the organic solid waste sorting platform (1) is connected with a feed inlet (5) of a spiral feeder (6) through a belt conveyor (4), sorted organic solid waste is conveyed into a pyrolysis gasification furnace (7) to be pyrolyzed and gasified, primary air enters from the bottom of the pyrolysis gasification furnace (7) through an air blower (19), and slag enters a water pool (18) through a rotary grate (9) through a slag outlet (16) and is transported out through a slag discharging machine (17);
pyrolysis gas of the pyrolysis gasifier (7) is discharged from the top of the pyrolysis gasifier (7) and enters the electric tar precipitator (11) to remove tar in the pyrolysis gas, the electric tar precipitator (11) is connected with gas purification and collection equipment (14), an MOFs purification module (21) is installed in the gas purification and collection equipment (14), and the pyrolysis gas is purified through metal organic framework compound materials in the MOFs purification module (21) to adsorb and separate H in the pyrolysis gas2、CH4And CO;
the gas purification and collection equipment (14) is connected with the waste heat boiler (15), the purified pyrolysis gas is conveyed to the waste heat boiler (15) for waste heat recovery, and the generated heat is conveyed to the organic solid waste sorting platform (1) through a pipeline and used for drying the organic solid waste.
2. The high-efficiency pyrolysis gasification equipment for heterogeneous organic solid waste according to claim 1, wherein the organic solid waste sorting platform (1) comprises a manual sorting platform (2) and a mechanical sorting platform (3), and the organic solid waste is subjected to manual and mechanical double sorting, so that the calorific value of the solid waste entering the furnace is increased, and the solid waste is conveyed to the screw feeder (6) through a belt conveyor (4).
3. The efficient pyrolysis gasification apparatus of heterogeneous organic solid waste according to claim 1, wherein the screw feeder (6) is installed with an inclination of 15 ° to prevent the material from being stuck in the screw feeder (6).
4. The efficient pyrolysis gasification equipment for heterogeneous organic solid waste according to claim 1, wherein three thermocouples (8) are installed in the pyrolysis gasifier (7), and the thermocouples (8) are connected with a temperature monitoring feedback device (20) to monitor the pyrolysis and combustion temperature in the pyrolysis gasifier; according to the combustion condition in the pyrolysis furnace, the primary air flow and the feeding speed of the organic solid waste are changed, so that the pyrolysis efficiency is improved.
5. The efficient pyrolysis gasification equipment for heterogeneous organic solid waste according to claim 1, wherein the pyrolysis gasifier (7) comprises a preheating layer, a pyrolysis layer, a gasification layer, a combustion layer, a burnout layer and an ash layer from bottom to top, and an insulating layer is arranged outside to reduce heat dissipation of the furnace body. The preheating layer is kept at the temperature of 200 ℃ to preheat the organic solid waste entering the furnace, and the residual moisture in the organic solid waste is removed; the organic solid waste enters a pyrolysis layer to start pyrolysis, the temperature of the pyrolysis layer is kept at 550-700 ℃, and different pyrolysis temperatures are selected according to different product requirements; the combustion layer provides heat for the pyrolysis layer; the ash slag generated by the burning-out layer is cooled by the rotary grate (9) in the cold slag layer, then is introduced into the water pool (18), and then is discharged by the slag discharging machine (17).
6. The efficient pyrolysis gasification equipment for the heterogeneous organic solid waste according to claim 5, wherein the carbon content of the ash discharged from the slag extractor (17) is identified by the bottom slag image identification equipment (22), and the pyrolysis condition of the pyrolysis gasifier is feedback controlled according to the residual carbon content of the ash.
7. The efficient pyrolysis gasification equipment for the heterogeneous organic solid waste according to claim 1, wherein the pyrolysis gas outlet of the pyrolysis gasifier (7) is provided with a real-time flue gas monitoring device (10) for detecting pollutants such as CO2, CO, NOx and the like generated by the pyrolysis gasifier.
8. The apparatus for high efficiency pyrolysis gasification of heterogeneous organic solid waste according to claim 1, wherein the electric tar precipitator (11) is installed with four precipitation electrodes (12) and has an oil outlet (13), so that tar liquefaction and pyrolysis gas are separated and discharged through the oil outlet (13), and the discharged tar can be used by fractionation.
9. An efficient pyrolysis gasification method of the efficient pyrolysis gasification equipment for the heterogeneous organic solid waste according to any one of claims 1 to 8, which is characterized by comprising the following specific steps: heterogeneous organic solid waste gets into organic solid useless letter sorting platform (1) after the heat that exhaust-heat boiler (15) produced is dry, through manual sorting and mechanical sorting back, picks out the solid useless that is fit for pyrolysis gasification, gets into feed inlet (5) through band conveyer (4), carries out the pyrolysis in sending into pyrolysis gasifier (7) through spiral feeder (6).
The ash slag after pyrolysis is cooled by a rotary grate (9), then is introduced into a water pool (18) and is discharged by a slag extractor (17). The carbon content of the ash slag is identified through bottom slag image identification equipment (22), and the pyrolysis working condition of the pyrolysis gasifier is controlled in a feedback mode according to the residual carbon content of the ash slag. Primary air required by pyrolysis gasification is fed from the bottom of the pyrolysis gasification furnace (7) through a blower (19), and the heat of combustion of the primary air is used for pyrolyzing the organic solid waste. The pyrolysis gasifier (7) is internally provided with a thermocouple (8), the temperature of the furnace body is monitored in real time through temperature monitoring feedback equipment (20), the primary air flow and the charging speed of the organic solid waste are changed according to the temperature in the furnace, and therefore the pyrolysis efficiency is improved.
Pyrolysis gas of the pyrolysis gasification furnace is discharged from the top of the pyrolysis gasification furnace, pollutants such as CO2, CO, NOx and the like generated by pyrolysis gasification of organic solid wastes are detected through a real-time flue gas monitoring device (10), then the pollutants enter an electric tar precipitator (11), and the tar is liquefied and separated from the pyrolysis gas through a precipitation electrode (12) and discharged through an oil outlet (13). The separated pyrolysis gas enters gas purification and collection equipment (14), and is purified through an MOFs purification module (21) to adsorb and separate H, CH and CH in the pyrolysis gas4And CO; the purified and separated pyrolysis gas is sent to a waste heat boiler (15) for waste heat recovery, and the generated waste heat is sent to an organic solid waste sorting platform (1) for drying organic solid waste.
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