CN216521683U - Kitchen waste pyrolysis and gas treatment device and treatment vehicle - Google Patents
Kitchen waste pyrolysis and gas treatment device and treatment vehicle Download PDFInfo
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- CN216521683U CN216521683U CN202122344229.5U CN202122344229U CN216521683U CN 216521683 U CN216521683 U CN 216521683U CN 202122344229 U CN202122344229 U CN 202122344229U CN 216521683 U CN216521683 U CN 216521683U
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Abstract
The utility model provides a kitchen waste pyrolysis and gas treatment device, which comprises: the pyrolysis furnace comprises an inner furnace body and a heating sleeve sleeved on the periphery of the inner furnace body, and high-temperature gas flows through the heating sleeve to heat the inner furnace body so that kitchen garbage in the pyrolysis furnace is pyrolyzed to form pyrolysis gas and coke; and the incinerator is connected with the pyrolysis furnace to receive pyrolysis gas, the incinerator is provided with a heat accumulator, a coal gas nozzle and a flue gas pipeline, air flows into the heat accumulator, one end of the flue gas pipeline is connected with the incinerator, the other end of the flue gas pipeline is connected with the heating sleeve, the heat accumulator is arranged on the flue gas pipeline, high-temperature flue gas formed by combustion of the pyrolysis gas in the incinerator flows through the heat accumulator along the flue gas pipeline to the heating sleeve, and the high-temperature flue gas exchanges heat with air in the heat accumulator to cool to the temperature required by pyrolysis of kitchen waste. The utility model has the beneficial effects that: high-temperature flue gas burnt by pyrolysis gas is circulated to the heating jacket to supply heat to the pyrolysis furnace, so that heat is recycled, energy is saved, emission is reduced, and preliminary resource utilization and heat energy recovery are performed on kitchen garbage.
Description
Technical Field
The utility model relates to the technical field of kitchen waste treatment, in particular to a kitchen waste pyrolysis and gas treatment device and a treatment vehicle.
Background
With the continuous improvement of the quality of life of people and the rapid development of social economy, the amount of kitchen waste is increased day by day, and the treatment mode of the kitchen waste also becomes a difficult problem of urban waste treatment. At present, most of kitchen garbage in China is still directly incinerated or buried. The kitchen waste landfill occupies urban land, the service life of the landfill is short, and a large amount of odor can be emitted to cause great pollution to the environment. The direct burning method can effectively treat the kitchen waste, but heavy metal elements, sulfur elements, halogen elements and the like contained in the kitchen waste can generate secondary pollution gases such as sulfur dioxide and the like after burning, and a great amount of waste of organic matters is also caused.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a kitchen waste pyrolysis and gas treatment apparatus and a treatment vehicle, which are provided to overcome the above-mentioned disadvantages of the existing kitchen waste treatment technology.
The embodiment of the utility model provides a kitchen waste pyrolysis and gas treatment device, which comprises:
the pyrolysis furnace comprises an inner furnace body and a heating sleeve sleeved on the periphery of the inner furnace body, wherein high-temperature gas flows through the heating sleeve to heat the inner furnace body, so that kitchen garbage in the pyrolysis furnace is pyrolyzed to form pyrolysis gas and coke;
and the incinerator is connected with the pyrolysis furnace to receive pyrolysis gas, the incinerator is provided with a heat accumulator, a gas nozzle and a flue gas pipeline, air flows into the heat accumulator, one end of the flue gas pipeline is connected with the incinerator, the other end of the flue gas pipeline is connected with the heating sleeve, the heat accumulator is arranged on the flue gas pipeline, high-temperature flue gas formed by combustion of the pyrolysis gas in the incinerator flows through the heat accumulator along the flue gas pipeline to flow to the heating sleeve, and the high-temperature flue gas exchanges heat with air in the heat accumulator to be cooled to the temperature required by pyrolysis of kitchen waste.
Further, the discharge gate department of pyrolysis oven be equipped with transport the coke the ejection of compact flood dragon and with the seal box that the ejection of compact flood dragon is connected, be equipped with the shower nozzle in the seal box, thereby the shower nozzle is used for spraying kitchen garbage pre-treated's waste liquid to the coke makes waste liquid purification, coke cooling.
Furthermore, the two ends of the incinerator are both conical head structures, and one end of the incinerator is a pyrolysis gas inlet and is connected with the inner furnace body; the other end is provided with the heat accumulator and the coal gas nozzle, and the hot air nozzle and the coal gas nozzle of the heat accumulator are arranged opposite to the pyrolysis gas inlet.
Further, the heat accumulator is a honeycomb ceramic heat accumulator.
Furthermore, the lower part of the heating sleeve is provided with a flue gas inlet, and the upper part of the heating sleeve is provided with a flue gas outlet.
Furthermore, a high-pressure extrusion bin is arranged at the upper part of the feed inlet of the inner furnace body.
Further, the absorption tower is arranged between the pyrolysis furnace and the incinerator and used for absorbing water vapor in pyrolysis gas.
The utility model also provides a kitchen waste pyrolysis and gas treatment vehicle which comprises the kitchen waste pyrolysis and gas treatment device.
The technical scheme provided by the embodiment of the utility model has the following beneficial effects: according to the kitchen waste pyrolysis and gas treatment device and the treatment vehicle, the heating sleeve is used for heating the pyrolysis furnace to pyrolyze and decompose the kitchen waste to generate pyrolysis gas, the pyrolysis gas is combusted by the incinerator to purify the gas, and meanwhile, the combusted high-temperature flue gas is circulated into the heating sleeve to supply heat to the pyrolysis furnace, so that the cyclic utilization of heat is realized, the energy is saved, the emission is reduced, and the primary resource utilization and the heat energy recovery are performed on the kitchen waste; the movable kitchen waste pyrolysis vehicle is suitable for in-situ treatment of the movable kitchen waste pyrolysis vehicle, and the burden of kitchen waste treatment in cities is reduced.
Drawings
FIG. 1 is a schematic diagram of the kitchen garbage pyrolysis and gas treatment device according to the present invention;
FIG. 2 is a schematic view of a pyrolysis furnace of the kitchen garbage pyrolysis and gas treatment apparatus according to the present invention;
FIG. 3 is a schematic view of an incinerator of the kitchen garbage pyrolysis and gas treatment apparatus according to the present invention.
In the figure: 1-pyrolysis furnace, 101-inner furnace body, 102-heating jacket, 103-flue gas inlet, 104-flue gas outlet, 105-feeding hole, 106-discharging hole, 107-high pressure extrusion bin, 108-discharging screw dragon, 109-seal box, 2-incinerator, 201-heat accumulator, 202-coal gas nozzle, 203-flue gas pipeline, 204-air inlet, 205-hot air nozzle and 206-pyrolysis gas inlet.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, embodiments of the present invention will be further described with reference to the accompanying drawings.
Referring to fig. 1, 2 and 3, an embodiment of the present invention provides a kitchen waste pyrolysis and gas treatment apparatus, which mainly includes a pyrolysis furnace 1, an incinerator 2 and an absorption tower.
Referring to fig. 1, in particular, the pyrolysis furnace 1 includes an inner furnace body 101 and a heating jacket 102 sleeved on the periphery of the inner furnace body 101. The interior pyrolysis space that is kitchen garbage of interior furnace body 101, the feed inlet 105 upper portion of interior furnace body 101 is equipped with high-pressure extrusion storehouse 107, high-pressure extrusion storehouse 107 bottom with feed inlet 105 is connected, high-pressure extrusion storehouse 107 is used for receiving outside kitchen garbage and carries out compression treatment to kitchen garbage.
The heating jacket 102 is a cylindrical hollow structure and made of a heat conducting material, and the inner wall of the heating jacket is in contact with the outer wall of the inner furnace body 101 for heat transfer. The lower part of the heating sleeve 102 is provided with a flue gas inlet 103, the upper part of the heating sleeve is provided with a flue gas outlet 104, high-temperature gas can be introduced into the heating sleeve 102 through the flue gas inlet 103, the high-temperature gas heats the inner furnace body 101 when flowing through the inside of the heating sleeve 102, and kitchen garbage is pyrolyzed to form pyrolysis gas and coke after the heating temperature reaches the pyrolysis temperature, wherein the pyrolysis gas mainly comprises micromolecular combustible gas and gasified pyrolysis oil.
And a discharging flood dragon 108 for conveying coke and a sealing box 109 connected with the discharging flood dragon 108 are arranged at a discharging port 106 of the pyrolysis furnace 1. Specifically, the feed end of ejection of compact flood dragon 108 set up in the discharge gate 106 below of interior furnace body 101, the discharge end of ejection of compact flood dragon 108 extends to in the seal box 109. The sealing box 109 is made of high-temperature-resistant sealing materials, the discharging screw conveyer 108 conveys coke generated by pyrolysis into the sealing box 109, and the sealing box 109 stores the coke, so that the coke is cooled and prevented from spontaneous combustion after being contacted with air. Simultaneously can also be in set up the shower nozzle in seal box 109, spray the waste liquid that produces among the rubbish pretreatment processes from cooking through the focusing carbon through the shower nozzle, carry out one-level waste water purification treatment, reach the effect of cooling coke simultaneously, the coke is transported out and is turned into the biological charcoal through subsequent processing and utilizes.
The absorption tower is used for absorbing water vapor in the pyrolysis gas. Here, an absorption tower is disposed between the pyrolysis furnace 1 and the incineration furnace 2. Specifically, the absorption tower adopts a design of a packed tower and mainly comprises a pyrolysis gas inlet, a pyrolysis gas outlet and a packing layer, wherein pyrolysis gas enters from the pyrolysis gas inlet, flows through the packing layer and then flows out from the pyrolysis gas outlet. The packing layer uses anhydrous calcium chloride solid with obvious dehumidification effect to absorb a large amount of vapor in the pyrolysis gas, and the effect of combustion of the pyrolysis gas is prevented from being influenced after the vapor enters the incinerator 2.
Referring to fig. 2, the incinerator 2 is used for burning pyrolysis gas and supplying heat to the heating jacket 102. The incinerator 2 is connected with the pyrolysis furnace 1 through the absorption tower, and pyrolysis gas dried by the absorption tower enters the incinerator 2. The incinerator 2 is provided with a heat accumulator 201 for air to flow in, a gas nozzle 202 and a flue gas pipeline 203, wherein one end of the flue gas pipeline 203 is connected with a combustion chamber of the incinerator 2, the other end of the flue gas pipeline 203 is connected with the heating jacket 102, and the heat accumulator 201 is arranged on the flue gas pipeline 203.
The incinerator 2 has two conical ends, wherein one end is a pyrolysis gas inlet 206 and is connected with the inner furnace body 101; the other end is provided with the heat accumulator 201 and the gas nozzle 202, and the hot air nozzle 205 and the gas nozzle 202 of the heat accumulator 201 are arranged opposite to the pyrolysis gas inlet 206. The heat accumulator 201 is specifically a honeycomb ceramic heat accumulator, an air inlet 204 is arranged on one side of the heat accumulator, which is far away from the incinerator 2, and external air enters the heat accumulator 201 from the air inlet 204 to be preheated and then is sprayed into the incinerator 2 through the hot air nozzle 205.
The pyrolysis gas is mixed with air and coal gas in the incinerator 2 and then combusted, the temperature of the inner cavity of the incinerator 2 can be maintained at about 1000 ℃, and thermal NOx is prevented from being generated and polluting air. Meanwhile, high-temperature flue gas formed by combustion flows through the heat accumulator 201 along the flue gas pipeline 203 and flows to the heating jacket 102, the high-temperature flue gas exchanges heat with air in the heat accumulator 201 and is cooled to about 800 ℃, and the high-temperature air enters the heating jacket 102 and then heats the pyrolysis furnace 1 to just reach the temperature required by pyrolysis of kitchen waste.
The utility model also provides a kitchen waste pyrolysis and gas treatment vehicle which comprises the kitchen waste pyrolysis and gas treatment device, wherein the kitchen waste pyrolysis and gas treatment device is carried on the kitchen waste pyrolysis and gas treatment vehicle, is movable, is suitable for in-situ treatment of the movable kitchen waste pyrolysis vehicle, and reduces the burden of city kitchen waste treatment.
In addition, referring to fig. 1, 2 and 3, the kitchen waste pyrolysis and gas treatment method based on the kitchen waste pyrolysis and gas treatment device includes the following steps:
s1, introducing flue gas generated by gas combustion into the heating jacket 102 to heat the kitchen garbage in the furnace body 101, and heating the kitchen garbage to about 500 ℃ to pyrolyze the kitchen garbage into pyrolysis gas and coke. The kitchen waste after pretreatment is preheated by about 200 ℃ and then enters the pyrolysis furnace 1 through the high-pressure pressurizing bin 107, and flue gas generated by gas combustion is input into the heating jacket 102 to be heated to the pyrolysis temperature of the kitchen waste.
The kitchen garbage is pyrolyzed to generate gas product pyrolysis gas and solid product coke, the pyrolysis gas is continuously combusted to heat the heating jacket 102, and the coke is transported to the sealing box 109 through the discharging auger 108 to be sealed and cooled. Meanwhile, waste liquid generated in the kitchen waste pretreatment process can be subjected to primary wastewater purification treatment by coke stored in the seal box 109, the effect of cooling the coke is achieved, and the coke is conveyed out and converted into biochar for utilization through subsequent treatment.
S2, inputting the pyrolysis gas into the incinerator 2, respectively introducing air and coal gas into the incinerator through the heat accumulator 201 and the coal gas nozzle 202, and burning the mixed pyrolysis gas, air and coal gas to form high-temperature flue gas with the temperature reaching about 1000 ℃.
Specifically, pyrolysis gas generated by pyrolysis in the pyrolysis furnace 1 is subjected to moisture absorption and drying treatment by the absorption tower and then is introduced into the incinerator 2, and meanwhile, air and coal gas in a proper proportion are introduced into the incinerator 2, and the air and the coal gas are fully and uniformly mixed and then are combusted to generate flue gas with the temperature as high as about 1000 ℃. The temperature of the incinerator 2 is maintained at around 1000 c because the pyrolysis gas is more completely combusted and less thermal NOx gas is generated at around 1000 c.
S3, high-temperature flue gas is introduced into the heating jacket 102 through the flue gas pipeline 203, the heat exchange temperature of the high-temperature flue gas and air is reduced to about 800 ℃ when the high-temperature flue gas passes through the heat accumulator 201, and the kitchen waste in the furnace body 101 is heated to about 500 ℃ by the high-temperature flue gas at about 800 ℃.
Here, the high temperature flue gas at about 800 ℃ is introduced into the heating jacket 102 to reach the pyrolysis temperature of the kitchen waste, and then the flue gas generated by gas combustion is not needed to heat the heating jacket 102. Meanwhile, the high-temperature flue gas in the flue gas pipeline 203 preheats air, so that the pyrolysis gas can be more efficiently combusted. Therefore, the heat recycling is realized, the resource utilization of the kitchen garbage is realized, and the effects of energy conservation and emission reduction are achieved.
In this document, the terms front, back, upper and lower are used to define the components in the drawings and the positions of the components relative to each other, and are used for clarity and convenience of the technical solution. It is to be understood that the use of the directional terms should not be taken to limit the scope of the claims.
The features of the embodiments and embodiments described herein above may be combined with each other without conflict.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (8)
1. The utility model provides a kitchen garbage pyrolysis and gas treatment device which characterized in that includes:
the pyrolysis furnace comprises an inner furnace body and a heating sleeve sleeved on the periphery of the inner furnace body, wherein high-temperature gas flows through the heating sleeve to heat the inner furnace body, so that kitchen garbage in the pyrolysis furnace is pyrolyzed to form pyrolysis gas and coke;
and the incinerator is connected with the pyrolysis furnace to receive pyrolysis gas, the incinerator is provided with a heat accumulator, a gas nozzle and a flue gas pipeline, air flows into the heat accumulator, one end of the flue gas pipeline is connected with the incinerator, the other end of the flue gas pipeline is connected with the heating sleeve, the heat accumulator is arranged on the flue gas pipeline, high-temperature flue gas formed by combustion of the pyrolysis gas in the incinerator flows through the heat accumulator along the flue gas pipeline to flow to the heating sleeve, and the high-temperature flue gas exchanges heat with air in the heat accumulator to be cooled to the temperature required by pyrolysis of kitchen waste.
2. The apparatus for pyrolysis and gas treatment of kitchen waste according to claim 1, wherein: the discharging mouth department of pyrolysis oven be equipped with the ejection of compact flood dragon of transporting the coke and with the seal box that the ejection of compact flood dragon is connected, be equipped with the shower nozzle in the seal box, thereby the shower nozzle is used for making waste liquid purification, coke cooling to the coke spray the waste liquid of rubbish pretreatment in kitchen.
3. The apparatus for pyrolysis and gas treatment of kitchen waste according to claim 1, wherein: the incinerator is of a conical head structure with two ends, wherein one end is a pyrolysis gas inlet and is connected with the inner furnace body; the other end is provided with the heat accumulator and the coal gas nozzle, and the hot air nozzle and the coal gas nozzle of the heat accumulator are arranged opposite to the pyrolysis gas inlet.
4. The apparatus for pyrolysis and gas treatment of kitchen waste according to claim 1, wherein: the heat accumulator is a honeycomb ceramic heat accumulator.
5. The apparatus for pyrolysis and gas treatment of kitchen waste according to claim 1, wherein: the lower part of the heating sleeve is provided with a flue gas inlet, and the upper part of the heating sleeve is provided with a flue gas outlet.
6. The apparatus for pyrolysis and gas treatment of kitchen waste according to claim 1, wherein: and a high-pressure extrusion bin is arranged at the upper part of the feed inlet of the inner furnace body.
7. The apparatus for pyrolysis and gas treatment of kitchen waste according to claim 1, wherein: the absorption tower is arranged between the pyrolysis furnace and the incinerator and is used for absorbing water vapor in the pyrolysis gas.
8. The utility model provides a kitchen garbage pyrolysis and gas treatment car which characterized in that: the kitchen waste pyrolysis and gas treatment device comprises the kitchen waste pyrolysis and gas treatment device as claimed in any one of claims 1 to 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122344229.5U CN216521683U (en) | 2021-09-26 | 2021-09-26 | Kitchen waste pyrolysis and gas treatment device and treatment vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122344229.5U CN216521683U (en) | 2021-09-26 | 2021-09-26 | Kitchen waste pyrolysis and gas treatment device and treatment vehicle |
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| CN216521683U true CN216521683U (en) | 2022-05-13 |
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| CN202122344229.5U Active CN216521683U (en) | 2021-09-26 | 2021-09-26 | Kitchen waste pyrolysis and gas treatment device and treatment vehicle |
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| CN (1) | CN216521683U (en) |
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2021
- 2021-09-26 CN CN202122344229.5U patent/CN216521683U/en active Active
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