CN213771917U - Garbage and biomass gasification coupling power generation system - Google Patents

Garbage and biomass gasification coupling power generation system Download PDF

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Publication number
CN213771917U
CN213771917U CN202022748007.5U CN202022748007U CN213771917U CN 213771917 U CN213771917 U CN 213771917U CN 202022748007 U CN202022748007 U CN 202022748007U CN 213771917 U CN213771917 U CN 213771917U
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China
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inlet
communicated
outlet
gas
biomass
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CN202022748007.5U
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魏星
王一坤
柳宏刚
张广才
聂鑫
成汭珅
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Xian Thermal Power Research Institute Co Ltd
Xian Xire Boiler Environmental Protection Engineering Co Ltd
Huaneng Power International Inc
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Xian Thermal Power Research Institute Co Ltd
Xian Xire Boiler Environmental Protection Engineering Co Ltd
Huaneng Power International Inc
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Abstract

The utility model discloses a garbage and biomass gasification coupling power generation system, a biomass or garbage conveying pipeline is communicated with an inlet of a grate type drier, a material outlet of the grate type drier is communicated with an inlet of a spiral conveyer, a gas outlet of the grate type drier is communicated with a gas side inlet of a cyclone separator, a gas side outlet of the cyclone separator is communicated with an inlet of a draught fan, the material outlet of the cyclone separator is communicated with the material inlet of the grate drier, the gas outlet of the draught fan is divided into two paths, one path goes to a coal-fired boiler, the other path is communicated with the gas side inlet of a heat exchanger through a bypass valve, cold air is communicated with the air side inlet of the heat exchanger through a blower, the air outlet of the heat exchanger is communicated with the air side inlet of a cyclone gasification furnace, the gas outlet of the heat exchanger is communicated with the gas side inlet of the cyclone gasification furnace, the ash produced at the material outlet of the cyclone gasification furnace is comprehensively utilized.

Description

Garbage and biomass gasification coupling power generation system
Technical Field
The utility model belongs to the technical field of living beings and waste utilization, a rubbish and biomass gasification coupling power generation system is related to.
Background
With the rapid development of economy and the increasing improvement of the national living standard, the environmental problem caused by biomass incineration is increasingly prominent, and how to treat large quantities of biomass becomes one of the serious problems faced by China at present. The treatment methods of biomass and garbage include two types: direct combustion and landfill are the main biomass treatment methods in China at present, air pollution is easily caused, and landfill needs to consume a large amount of manpower, material resources and time, so that direct combustion becomes the mainstream mode of biomass treatment in China. In the combustion process of the biomass and the garbage, a large amount of heat can be generated, the part of heat is used for power generation, and waste heat recovery and resource maximum use can be realized. From this, couple rubbish and biomass power generation system and conventional coal fired power generation system, be expected to realize the produced thermal high-efficient utilization of biomass burning, and then increase coal fired power plant functionality, but because the living beings have more alkali metal, directly mix the burning with living beings to the problem that influences unit security such as current coal fired boiler causes slagging scorification, heat-transfer surface corruption easily, directly mix the difficult problem of the processing that burns rubbish and still can bring filtration liquid.
SUMMERY OF THE UTILITY MODEL
The utility model aims to overcome the defects of the prior art and provide a garbage and biomass gasification coupling power generation system which can burn the fuel gas generated by the gasification of garbage and biomass and realize the coupling of the gasification system and the conventional coal-fired power generation system,
in order to achieve the purpose, the garbage and biomass gasification coupling power generation system comprises a grate type drier, a screw conveyer, a cyclone gasification furnace, a cyclone separator, an induced draft fan and a heat exchanger;
the biomass and garbage conveying pipeline is communicated with an inlet of the grate type drier, a material outlet of the grate type drier is communicated with an inlet of the spiral conveyer, a fuel gas outlet of the grate type drier is communicated with a fuel gas side inlet of the cyclone separator, a fuel gas side outlet of the cyclone separator is communicated with an inlet of the induced draft fan, a material outlet of the cyclone separator is communicated with the material inlet of the grate type drier, a fuel gas outlet of the induced draft fan is divided into two paths, one path is communicated with the coal-fired boiler, the other path is communicated with a gas side inlet of the heat exchanger through a bypass valve, a cold air pipeline is communicated with an air inlet of the heat exchanger, an air outlet of the heat exchanger is communicated with an air side inlet of the cyclone gasification furnace, a gas outlet of the heat exchanger is communicated with a gas side inlet of the cyclone gasification furnace, and a gas side outlet of the cyclone gasification furnace is communicated with a gas side inlet of the grate type drying machine.
And a material outlet at the bottom of the grate type drying machine is provided with a discharging screw.
And a material outlet at the bottom of the cyclone separator is communicated with an inlet of the grate type drying machine.
A bypass valve is arranged between the outlet of the induced draft fan and the gas inlet of the heat exchanger.
The cold air pipeline is communicated with the air inlet of the heat exchanger through a blower.
The utility model discloses following beneficial effect has:
when the garbage and biomass gasification coupling power generation system is operated specifically, biomass enters the grate type drier, the biomass is dried under the action of hot gas, the dried biomass enters the cyclone gasifier to be gasified, the generated gasified gas enters the grate type drier, a gas-solid mixture generated by the grate type drier is separated into gas and particles under the action of a cyclone separator, one part of the gas enters the coal-fired boiler to be combusted under the action of the draught fan, and the other part of the gas enters the heat exchanger to exchange heat with cold air; the gas and air after heat exchange enter the cyclone gasification furnace together to gasify dried biomass particles, and the biomass gasified by the cyclone gasification furnace is discharged to comprehensively utilize biomass ash. The utility model discloses can effectually utilize living beings to produce the gas and can directly burn in coal fired boiler, effectively avoid coal fired boiler direct combustion living beings to produce the heating surface corrosion scheduling problem. When the treated material is garbage, the grate type drying machine can be used for drying the garbage, so that the heat value of the combustion material can be effectively improved, and the garbage percolate which is difficult to treat by other methods at present does not need to be treated.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Wherein, 1 is a grate type drier, 2 is a screw feeder, 3 is a cyclone gasification furnace, 4 is a cyclone separator, 5 is a draught fan, 6 is a bypass valve, 7 is a heat exchanger, and 8 is a blower.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings:
referring to fig. 1, the waste and biomass gasification coupled power generation system of the present invention includes a grate type drying machine 1, a screw conveyor 2, a cyclone gasifier 3, a cyclone separator 4, an induced draft fan 5 and a heat exchanger 7; the biomass and garbage conveying pipeline is communicated with an inlet of the grate type drier 1, a material outlet of the grate type drier 1 is communicated with an inlet of the spiral conveyor 2, a gas outlet of the grate type drier 1 is communicated with a gas side inlet of the cyclone separator 4, a gas side outlet of the cyclone separator 4 is communicated with an inlet of the induced draft fan 5, a material outlet of the cyclone separator 4 is communicated with a material inlet of the grate type drier 1, a gas outlet of the induced draft fan 5 is divided into two paths, one path of the cold air pipeline is communicated with the air inlet of the heat exchanger 7, the air outlet of the heat exchanger 7 is communicated with the air side inlet of the cyclone gasifier 3, the gas outlet of the heat exchanger 7 is communicated with the gas side inlet of the cyclone gasifier 3, and the gas side outlet of the cyclone gasifier 3 is communicated with the gas side inlet of the grate type drier 1.
A material outlet at the bottom of the grate type drier 1 is provided with a discharging screw.
The material outlet at the bottom of the cyclone separator 4 is communicated with the inlet of the grate type drier 1.
A bypass valve 6 is arranged between the outlet of the induced draft fan 5 and the gas inlet of the heat exchanger 7.
The cold air duct communicates with the air inlet of the heat exchanger 7 by means of a blower 8.
The utility model discloses a concrete working process does:
when the biomass is treated by biomass, the biomass is sent into a grate type drier 1, the biomass is dried in the grate type drier 1, the dried biomass enters a cyclone gasification furnace 3 through a screw feeder 2, biomass gasification gas generated by the cyclone gasification furnace 3 enters the grate type drier 1 to be cooled and dried, the biomass gasification gas is cooled and then enters a cyclone separator 4 to be separated, the separated gas is divided into two paths through an induced draft fan 5, one path of the gas enters a coal-fired boiler to be combusted, the other path of the gas enters a heat exchanger 7 to exchange heat with cold air output by a blower 8 in the heat exchanger 7, the generated cold gas and hot air simultaneously enter the cyclone gasification furnace 3, the dried biomass is gasified under the action of the hot air and the cold gas in the cyclone gasification furnace 3, and the generated hot gas enters the grate type drier 1, discharging the generated biomass ash;
when the processed matter is garbage, the garbage is sent into a grate type drier 1, the garbage is dried in the grate type drier 1, the dried garbage enters a cyclone gasification furnace 3 through a screw feeder 2, the generated biomass gasification gas enters the grate type drier 1 to be cooled and dried, and then the biomass gasification gas enters a cyclone separator 4 to be separated after being cooled, wherein, the separated gas is divided into two paths by the induced draft fan 5, wherein, one path enters the coal-fired boiler for burning, the other path enters the heat exchanger 7, exchanges heat with cold air output by the blower 8, and the generated cold fuel gas and hot air enter the cyclone gasification furnace 3 at the same time, the dried garbage is gasified in the cyclone gasification furnace 3 under the action of hot air and cold fuel gas, the generated hot fuel gas enters the grate type drying machine 1, and ash and slag generated by the cyclone gasification furnace 3 are discharged independently.
The utility model discloses can be used for generating electricity with rubbish and living beings and coal fired power plant system coupling, the living beings or the waste gas that will produce, realize that the maximize of waste heat recovery and resource is used, through carrying out the coupling to biomass gasification processing system and conventional coal fired power generation system, realize that biomass gasification burns produced thermal high-efficient utilization. Utilize the utility model discloses, not only can realize living beings and rubbish and effectively burn the utilization, can avoid the direct combustion living beings to produce moreover and corrode safety problems such as boiler heating surface, solve landfill leachate's a difficult problem of handling, can not cause environmental secondary pollution yet, to realizing minimizing, innoxious, resourceization and the scale of living beings and rubbish and deal with, have important meaning.

Claims (5)

1. A garbage and biomass gasification coupling power generation system is characterized by comprising a grate type drier (1), a spiral conveyor (2), a cyclone gasification furnace (3), a cyclone separator (4), an induced draft fan (5) and a heat exchanger (7);
the biomass and garbage conveying pipeline is communicated with an inlet of the grate type drier (1), a material outlet of the grate type drier (1) is communicated with an inlet of the spiral conveyor (2), a fuel gas outlet of the grate type drier (1) is communicated with a fuel gas side inlet of the cyclone separator (4), a fuel gas side outlet of the cyclone separator (4) is communicated with an inlet of the induced draft fan (5), a material outlet of the cyclone separator (4) is communicated with a material inlet of the grate type drier (1), a fuel gas outlet of the induced draft fan (5) is divided into two paths, one path is communicated with the coal-fired boiler, the other path is communicated with a fuel gas side inlet of the heat exchanger (7) through the bypass valve (6), the cold air pipeline is communicated with an air inlet of the heat exchanger (7), an air outlet of the heat exchanger (7) is communicated with an air side inlet of the cyclone gasifier (3), the gas outlet of the heat exchanger (7) is communicated with the gas side inlet of the cyclone gasification furnace (3), and the gas side outlet of the cyclone gasification furnace (3) is communicated with the gas side inlet of the grate type drying machine (1).
2. The gasification and coupling power generation system for garbage and biomass according to claim 1, wherein a material outlet at the bottom of the grate type drier (1) is provided with a discharging screw.
3. The gasification and coupling power generation system for garbage and biomass according to claim 1, wherein a material outlet at the bottom of the cyclone separator (4) is communicated with an inlet of the grate type drier (1).
4. The gasification and coupling power generation system for garbage and biomass according to claim 1, wherein a bypass valve (6) is arranged between the outlet of the induced draft fan (5) and the gas inlet of the heat exchanger (7).
5. The coupled gasification refuse and biomass power generation system according to claim 1, wherein the cold air duct is connected to the air inlet of the heat exchanger (7) by a blower (8).
CN202022748007.5U 2020-11-23 2020-11-23 Garbage and biomass gasification coupling power generation system Active CN213771917U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202022748007.5U CN213771917U (en) 2020-11-23 2020-11-23 Garbage and biomass gasification coupling power generation system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202022748007.5U CN213771917U (en) 2020-11-23 2020-11-23 Garbage and biomass gasification coupling power generation system

Publications (1)

Publication Number Publication Date
CN213771917U true CN213771917U (en) 2021-07-23

Family

ID=76880674

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202022748007.5U Active CN213771917U (en) 2020-11-23 2020-11-23 Garbage and biomass gasification coupling power generation system

Country Status (1)

Country Link
CN (1) CN213771917U (en)

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