CN211316185U - Domestic waste anaerobic sectional type pyrolysis furnace - Google Patents
Domestic waste anaerobic sectional type pyrolysis furnace Download PDFInfo
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- CN211316185U CN211316185U CN201922239761.3U CN201922239761U CN211316185U CN 211316185 U CN211316185 U CN 211316185U CN 201922239761 U CN201922239761 U CN 201922239761U CN 211316185 U CN211316185 U CN 211316185U
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Abstract
The utility model discloses a domestic waste anaerobic sectional type pyrolysis furnace, including the heat preservation furnace body and fix the dry furnace body in the heat preservation furnace body, the thermal-insulated furnace body, the pyrolysis furnace body, the carbon is peeled off the furnace body, the deposition bucket, the dry furnace body, the thermal-insulated furnace body, the pyrolysis furnace body, the carbon is peeled off the furnace body, the deposition bucket is equipped with thermal-insulated picture peg each other, the dry furnace body is used for dry domestic waste, thermal-insulated section furnace body can separate the pyrolysis furnace body of high temperature from the dry furnace body, the pyrolysis furnace body is used for pyrolyzing domestic waste, the separation of pyrolytic carbon under anaerobic state is realized to the carbon peeling off furnace body, the deposition bucket is used for pyrolytic carbon, the intermediate layer between pyrolysis furnace body and the heat preservation furnace body is the combustion chamber, gas that gas supply system produced the pyrolysis furnace body is carried to combustion chamber and deposition bucket in, the heat in drying system; the utility model provides high domestic waste's utilization ratio, rubbish becomes nonhazardous gas and carbon dust after burning decomposes, has avoided secondary pollution's problem.
Description
Technical Field
The utility model belongs to domestic waste processing apparatus field, especially a domestic waste anaerobic sectional type pyrolysis oven.
Background
The existing household garbage treatment technology generally adopts household garbage incineration power generation, the technology carries out incineration treatment on the garbage in a mode of adding a combustion improver, and then the power generation is carried out by using the residual heat after the garbage is treated. The technology needs to establish a huge collection system, a large amount of combustion improver is needed for waste incineration power generation, the operation cost is high, secondary pollution can be caused in the incineration process of the waste, and dioxin substances, sulfides, nitrogen oxides, chlorides, fly ash and the like which influence the environment are generated. These pollutants can cause harm to the environment and human body, and seriously affect the health of human beings. Therefore, the key of the domestic garbage disposal is to solve the problems of operation cost and secondary pollution in the garbage incineration process.
Disclosure of Invention
The utility model provides a domestic waste anaerobic sectional type pyrolysis furnace solves prior art and has operation cost and secondary pollution's problem.
In order to solve the technical problem, the technical scheme of the utility model is that: domestic waste anaerobic sectional type pyrolysis furnace, its characterized in that: comprises a heat preservation furnace body, a drying furnace body, a heat insulation furnace body, a pyrolysis furnace body, a carbon stripping furnace body and an ash deposition hopper, wherein the drying furnace body, the heat insulation furnace body, the pyrolysis furnace body, the carbon stripping furnace body and the ash deposition hopper are sequentially arranged in the heat preservation furnace body from top to bottom, a heat insulation inserting plate is arranged between the drying furnace body, the heat insulation furnace body, the pyrolysis furnace body, the carbon stripping furnace body and the ash deposition hopper, the drying furnace body is used for drying domestic garbage, the pyrolysis furnace body with high temperature can be separated from the drying furnace body through a heat insulation section furnace body, the pyrolysis furnace body is used for pyrolyzing the domestic garbage, the carbon stripping furnace body realizes the separation of pyrolytic carbon in an anaerobic state, the ash deposition hopper is used for pyrolyzing carbon, an interlayer between the pyrolysis furnace body and the heat preservation furnace body forms a combustion chamber through two annular clapboards, the gas supply system conveys combustible gas generated by the pyrolysis furnace body to the pyrolysis heating burner and the furnace ash heating burner, the drying system is arranged on the outer side surface of the heat preservation furnace body, and the drying system can convey heat in the combustion chamber and the ash deposition bucket to the inside of the drying furnace body.
The technical scheme is further limited, an exhaust pipe is arranged on the top end face of the drying furnace body and used for being connected with a condenser, an air inlet pipe and a material conveying pipe are arranged on the side face of the drying furnace body, the air inlet pipe is used for being connected with an exhaust pipe of the drying system, and the material conveying pipe is used for being connected with a feeder.
The technical scheme is further limited, and a plurality of air overflow holes are distributed above the side wall of the pyrolysis furnace body.
The technical scheme is further limited, and an ash discharge valve is arranged on the lower port of the ash deposition bucket.
The technical scheme is further limited, the gas supply system is composed of a gas collecting hood, a cyclone dust collector, a fan and gas supply branch pipes, the gas collecting hood collects pyrolysis gas of the pyrolysis furnace body through gas overflow holes in the side wall of the pyrolysis furnace body, the cyclone dust collector is fixed on the outer side face of the heat preservation furnace body, the gas inlet end of the cyclone dust collector is connected with the gas outlet end of the gas collecting hood through a pipe body, and the gas outlet end of the cyclone dust collector is connected with the pyrolysis heating burner and the furnace ash heating burner through the two gas supply branch pipes respectively.
The technical scheme is further limited, the drying system is composed of a fan and a smoke exhaust pipe, the fan is fixed on an air inlet pipe of the drying furnace body, and the combustion chamber and the inner cavity of the ash deposition bucket furnace are connected with the air inlet pipe on the drying furnace body through the smoke exhaust pipe.
The technical scheme is further improved, temperature measuring instruments are arranged in the drying furnace body and the pyrolysis furnace body, and the drying furnace body is provided with a humidity instrument.
The utility model discloses beneficial effect: the utility model has the advantages of integrated pyrolysis of domestic waste, pollutant desorption, advance oxygen and temperature controllable, the feeding is even, the mode that adopts small-scale dispersion to deal with makes domestic waste in time handle on the spot, the long distance transportation link of rubbish has been saved, this technology does not have the oxygen supply in the pyrolysis process, the condition that dioxin produced has been destroyed, can effectually reduce the production of dioxin, rubbish produces combustible gas and carbon in the in-process of pyrolysis, the device utilizes combustible gas and carbon that rubbish pyrolysis produced to release heat once more and is used for cyclic processing domestic waste, the utilization ratio of domestic waste has been improved, the operation cost is reduced; the sectional furnace body, the heat insulation inserting plate and the partition plate can avoid rapid heat loss, and the heat utilization rate is improved.
Drawings
Fig. 1 is a schematic structural diagram of the invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a top view of fig. 1.
Detailed Description
As shown in fig. 1, 2 and 3, the anaerobic sectional type pyrolysis furnace for domestic garbage comprises a heat preservation furnace body 1, a drying furnace body 2, a heat insulation furnace body 3, a pyrolysis furnace body 4, a carbon stripping furnace body 5 and an ash deposition bucket 6, wherein the drying furnace body, the heat insulation furnace body, the pyrolysis furnace body, the carbon stripping furnace body and the ash deposition bucket are fixedly arranged in the heat preservation furnace body in sequence from top to bottom, a heat insulation inserting plate 7 is arranged between the drying furnace body, the heat insulation furnace body, the pyrolysis furnace body, the carbon stripping furnace body and the ash deposition bucket, the drying furnace body is used for drying the domestic garbage, the heat insulation section furnace body can separate the high-temperature pyrolysis furnace body from the drying furnace body, the heat insulation section furnace body can ensure that the temperature of the drying furnace body is controllable, the pyrolysis furnace body is used for pyrolyzing the domestic garbage, the carbon stripping furnace body realizes the separation of the pyrolytic carbon in an anaerobic state, the ash deposition, a pyrolysis heating burner 10 is arranged in the combustion chamber, a furnace ash heating burner 11 is arranged on the inner wall of the ash deposition hopper, an air supply system 12 is arranged on the outer side surface of the heat preservation furnace body, the air supply system conveys combustible gas generated by the pyrolysis furnace body to the pyrolysis heating burner and the furnace ash heating burner, a drying system 13 is arranged on the outer side surface of the heat preservation furnace body, and the drying system can convey heat in the combustion chamber and the ash deposition hopper to the inside of the drying furnace body;
as shown in fig. 1, 2 and 3, the heat-insulating furnace body 1 is a hollow cylinder in shape, the chamber wall of the heat-insulating furnace body is composed of multiple layers of heat-insulating materials, and the heat-insulating materials are micro-nano heat-insulating plates or refractory bricks, so that the chamber wall can resist high temperature of 850-;
as shown in fig. 1, 2 and 3, the drying furnace body 2 is cylindrical, an exhaust pipe 201 is arranged on the top end surface of the drying furnace body and is used for connecting a condenser, an air inlet pipe 202 and a material conveying pipe are arranged on the side surface of the drying furnace body, the air inlet pipe is used for connecting an exhaust pipe of the drying system, the material conveying pipe is used for connecting a feeder 204, and the feeder is a spiral feeder;
as shown in fig. 1, 2 and 3, the heat insulation furnace body 3 is a hollow cylinder;
as shown in fig. 1, 2 and 3, the pyrolysis furnace body 4 is a hollow cylinder, and a plurality of air vents 401 are distributed above the side wall of the pyrolysis furnace body and can accelerate the discharge of combustible gas;
as shown in fig. 1, 2 and 3, the carbon stripping furnace body 5 is a hollow cylinder;
as shown in fig. 1, 2 and 3, the dust hopper 6 is in a circular truncated cone shape, a carbon inlet is arranged at the upper end face of the dust hopper, and a dust discharge valve 601 is arranged at the lower port of the dust hopper;
as shown in fig. 1, 2 and 3, the heat insulation inserting plate 7 is composed of a heat insulation plate and a push-pull rod, one end of the push-pull rod is fixedly connected with the heat insulation plate, the push-pull rod extends out of the drying furnace body, and the push-pull rod is used for pushing and pulling the heat insulation plate;
as shown in fig. 1, 2 and 3, the gas supply system 12 is composed of a gas collecting hood 1201, a cyclone dust collector 1202 and gas supply branch pipes 1203, the gas collecting hood collects pyrolysis gas of the pyrolysis furnace body through gas overflow holes on the side wall of the pyrolysis furnace body, the cyclone dust collector is fixed on the outer side surface of the heat preservation furnace body, the gas inlet end of the cyclone dust collector is connected with the gas outlet end of the gas collecting hood through a pipe body, and the gas outlet end of the cyclone dust collector is respectively connected with the pyrolysis heating burner and the furnace ash heating burner through two gas supply branch pipes; the structure is simple, the production cost is low, and the heat generated by the garbage is fully utilized;
as shown in fig. 1, 2 and 3, the drying system 13 is composed of a fan 1301 and a smoke exhaust pipe 1302, the fan is fixed on an air inlet pipe of the drying furnace body, and the combustion chamber and the inner cavity of the ash bucket furnace are connected with the air inlet pipe of the drying furnace body through the smoke exhaust pipe; the structure is simple, the production cost is low, and the heat generated by the garbage is fully utilized;
as shown in fig. 1, 2 and 3, needle thermometers 14 are arranged in the drying furnace body and the pyrolysis furnace body, and needle humidifiers 15 are arranged in the drying furnace body, so that the drying and pyrolysis effects of the household garbage are ensured.
As shown in fig. 1, fig. 2 and fig. 3, the working principle of the present invention is as follows: 1) the household garbage is pressed into the drying furnace body in a closed state through the feeder 1, the drying furnace body 5 directly dries the garbage in the drying furnace body by utilizing heat permeated by the heat-insulating layer and heat of a drying system, a combustion chamber and a smoke exhaust pipe of an ash accumulation hopper furnace chamber, hot air enters from the bottom of the drying furnace body to take away water in the garbage, water vapor enters a condenser through an exhaust pipe on the drying furnace body, the water vapor is changed into liquid water, and generated odor is treated through a deodorization device; the temperature of a temperature instrument in the drying furnace body is controlled to be 100-150 ℃, and the temperature of the temperature instrument is higher than the temperature range, and a drying system carries out cooling treatment on a drying section (namely, a reversing valve on a smoke exhaust pipe changes the heat conveying direction, and a fan pumps outside air to dry garbage); the humidity on a humidity meter in the drying furnace body is controlled to be 1% -20%, and a plurality of overhigh humidities adjust the heat quantity conveyed by the drying system; after the garbage is dried, the next treatment link is carried out;
2) after the domestic garbage is dried, the heat insulation furnace body separates heat from the pyrolysis furnace body through a cavity of the heat insulation furnace body, and meanwhile, the heat insulation furnace body plays a role in sealing the pyrolysis furnace body; after the garbage drying is finished, pulling the heat insulation plugboard among the drying furnace body, the heat insulation furnace body and the pyrolysis furnace body, enabling the garbage to fall into the pyrolysis furnace body, and pushing the heat insulation plugboard to isolate the furnace chamber;
3) the garbage in the pyrolysis furnace body starts to be pyrolyzed, combustible gas generated by pyrolysis is conveyed into the pyrolysis heating burner through the gas collecting hood, the cyclone dust collector and the gas supply branch pipe, the combustible gas and oxygen are mixed and then are combusted in the combustion chamber, and heat generated by combustion provides pyrolysis energy for the pyrolysis furnace body; a temperature instrument in the pyrolysis furnace body is used for judging the pyrolysis completion condition, and when the temperature exceeds the set pyrolysis temperature range, the pyrolysis of the living garbage is completed and the next link is entered; the pyrolysis furnace body is used for igniting combustible gas generated by pyrolysis of the garbage to circularly heat the pyrolysis furnace body 11, the pyrolysis heating burner adopts a gas and oil dual-purpose burner, the pyrolysis heating burner is adjusted when the heat provided by the combustible gas generated by pyrolysis of the household garbage is insufficient, and waste gas generated by ignition of the combustible gas and a combustion improver is discharged through a smoke exhaust pipe and conveyed into the drying furnace body;
4) pulling a heat insulation inserting plate between the pyrolysis furnace body and the carbon stripping furnace body, and pushing the heat insulation inserting plate to isolate the furnace chamber, wherein pyrolytic carbon generated after pyrolysis of garbage falls into the carbon stripping furnace body;
5) pulling a heat insulation inserting plate between the carbon stripping furnace body and the ash deposition bucket, enabling pyrolytic carbon to fall into the ash deposition bucket, and pushing the heat insulation inserting plate to isolate a furnace chamber so as to prevent air (oxygen) from entering a pyrolysis section; pyrolysis gas (combustible gas) for the pyrolytic carbon is used for heating a burner through furnace ash to support oxygen for combustion so as to ignite and oxidize the pyrolytic carbon, the released heat is used for heating a heat preservation furnace body, and waste gas generated by the pyrolytic carbon is discharged through a smoke exhaust pipe and conveyed into a drying furnace body; discharging ash residues after the pyrolysis carbon is oxidized through an ash discharging valve, wherein the ash residue discharging amount is required to ensure that oxygen cannot enter an ash deposition hopper through the ash discharging valve;
6) when the exhaust pipe generates exhaust gas with higher temperature, the exhaust gas is conveyed to a rear flue gas treatment system through a reversing valve for treatment.
Adopt the utility model discloses handle domestic waste, have following benefit: 1) the operation cost is only 1/3 compared with the cost of the household garbage incineration power generation; 2) the utility model has simple structure, is convenient to be built near the refuse dump, and the refuse collection and transportation distance is 1/10 of the refuse incineration power generation collection and transportation distance on average; 3) the application of the technology can treat the household garbage in situ in real time, avoid secondary transportation of the garbage and secondary pollution formed in the transportation process, and reduce the generation of dioxin from the source; 4) the method makes full use of combustible gas and carbon generated by the garbage, and reduces the cost of garbage treatment; 5) the device is flexibly suitable for villages, towns, counties and remote areas in treatment scale, solves the problem of high transportation cost of the domestic garbage and saves the construction and operation cost of a transportation system.
Those skilled in the art will appreciate that the details of the present invention are not described in detail herein.
Claims (7)
1. Domestic waste anaerobic sectional type pyrolysis furnace, its characterized in that: comprises a heat preservation furnace body, a drying furnace body, a heat insulation furnace body, a pyrolysis furnace body, a carbon stripping furnace body and an ash deposition hopper, wherein the drying furnace body, the heat insulation furnace body, the pyrolysis furnace body, the carbon stripping furnace body and the ash deposition hopper are sequentially arranged in the heat preservation furnace body from top to bottom, a heat insulation inserting plate is arranged between the drying furnace body, the heat insulation furnace body, the pyrolysis furnace body, the carbon stripping furnace body and the ash deposition hopper, the drying furnace body is used for drying domestic garbage, the pyrolysis furnace body with high temperature can be separated from the drying furnace body through a heat insulation section furnace body, the pyrolysis furnace body is used for pyrolyzing the domestic garbage, the carbon stripping furnace body realizes the separation of pyrolytic carbon in an anaerobic state, the ash deposition hopper is used for pyrolyzing carbon, an interlayer between the pyrolysis furnace body and the heat preservation furnace body forms a combustion chamber through two annular clapboards, the gas supply system conveys combustible gas generated by the pyrolysis furnace body to the pyrolysis heating burner and the furnace ash heating burner, the drying system is arranged on the outer side surface of the heat preservation furnace body, and the drying system can convey heat in the combustion chamber and the ash deposition bucket to the inside of the drying furnace body.
2. The anaerobic segmented household garbage pyrolysis furnace according to claim 1, is characterized in that: the drying furnace is characterized in that an exhaust pipe is arranged on the top end face of the drying furnace body and used for being connected with a condenser, an air inlet pipe and a material conveying pipe are arranged on the side face of the drying furnace body, the air inlet pipe is used for being connected with an exhaust pipe of a drying system, and the material conveying pipe is used for being connected with a feeder.
3. The anaerobic segmented household garbage pyrolysis furnace as claimed in claim 1 or 2, is characterized in that: and a plurality of air overflow holes are distributed above the side wall of the pyrolysis furnace body.
4. The anaerobic segmented household garbage pyrolysis furnace according to claim 3, is characterized in that: and an ash discharge valve is arranged on the lower port of the ash deposition hopper.
5. The anaerobic segmented pyrolysis furnace for household garbage according to claim 1, 2 or 4, characterized in that: the gas supply system comprises a gas collecting hood, a cyclone dust collector, a fan and gas supply branch pipes, wherein the gas collecting hood collects pyrolysis gas of the pyrolysis furnace body through gas overflow holes in the side wall of the pyrolysis furnace body, the cyclone dust collector is fixed on the outer side surface of the heat preservation furnace body, the gas inlet end of the cyclone dust collector is connected with the gas exhaust end of the gas collecting hood through a pipe body, and the gas exhaust end of the cyclone dust collector is connected with the pyrolysis heating burner and the furnace ash heating burner through two gas supply branch pipes.
6. The anaerobic segmented household garbage pyrolysis furnace according to claim 5, is characterized in that: the drying system consists of a fan and a smoke exhaust pipe, the fan is fixed on an air inlet pipe of the drying furnace body, and the combustion chamber and the inner cavity of the ash deposition bucket furnace are connected with the air inlet pipe on the drying furnace body through the smoke exhaust pipe.
7. The anaerobic segmented household garbage pyrolysis furnace as claimed in claim 1, 2, 4 or 6, characterized in that: the drying furnace body and the pyrolysis furnace body are both internally provided with temperature measuring instruments, and the drying furnace body is provided with a humidity instrument.
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CN110779019A (en) * | 2019-12-14 | 2020-02-11 | 湖北中道环保科技股份有限公司 | Domestic waste anaerobic sectional type pyrolysis furnace |
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