CN218665928U - Biomass gasification device - Google Patents
Biomass gasification device Download PDFInfo
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- CN218665928U CN218665928U CN202223596328.3U CN202223596328U CN218665928U CN 218665928 U CN218665928 U CN 218665928U CN 202223596328 U CN202223596328 U CN 202223596328U CN 218665928 U CN218665928 U CN 218665928U
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- heat carrier
- biomass
- feeder
- fluidized bed
- bed gasifier
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- 239000002028 Biomass Substances 0.000 title claims abstract description 58
- 238000002309 gasification Methods 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 claims description 7
- 239000002737 fuel gas Substances 0.000 claims description 6
- 238000009434 installation Methods 0.000 claims description 6
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 239000007789 gas Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 7
- 239000002994 raw material Substances 0.000 description 5
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 239000002918 waste heat Substances 0.000 description 1
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- Processing Of Solid Wastes (AREA)
Abstract
The utility model discloses a biomass gasification device, including the heat carrier feeder, one side of heat carrier feeder is linked together with fluidized bed gasifier's bottom, the opposite side of heat carrier feeder is connected with the pay-off area, the other end in pay-off area is connected with heat carrier spiral feeder, heat carrier spiral feeder one side intercommunication has fluidized bed gasifier, one-level cyclone is connected with second grade cyclone, second grade cyclone one side is connected with heat exchanger, one side of heat exchanger is connected with gas storage device. The utility model discloses a biomass gasification device preheats the biomass through biomass screw feeder side-mounting's microwave heater, has improved intensification rate and gasification efficiency behind the biomass entry gasification device, sends the heat carrier of bottom to heat carrier screw feeder through heat carrier feeder and pay-off area in, has improved the heating efficiency of device, has reduced the heat loss.
Description
Technical Field
The utility model relates to a biomass gasification technical field, in particular to biomass gasification device.
Background
The biomass energy has wide distribution and large storage capacity in China, is carbon neutral green energy due to the reproducibility and is an important alternative energy of the traditional fossil energy. The biomass gasification technology can convert low-grade solid biomass into high-grade combustible gas, and further can be used for heating, power generation, preparation of high-value chemicals and the like.
However, in the existing biomass fluidized bed technology, the biomass raw material in the fluidized bed gasifier is heated by adopting a wall surface heating mode, and in the heating mode, heat needs to be indirectly transferred to the biomass raw material through wall surfaces, gas and particles, which belongs to indirect heat transfer, so that the heat transfer efficiency is low, and efficient biomass gasification cannot be realized.
SUMMERY OF THE UTILITY MODEL
To the above-mentioned not enough among the prior art, the utility model provides a biomass gasification device, its purpose is solved on the heat needs transmit the living beings raw materials through the wall-gas-granule is indirect, belongs to indirect heat transfer, and its heat transfer efficiency is lower, can't realize efficient biomass gasification scheduling problem.
In order to achieve the above object, the utility model adopts the following technical scheme: the utility model provides a biomass gasification device, includes heat carrier feeder, heat carrier spiral feeder, gas storage device, microwave heater, fluidized bed gasifier, biomass spiral feeder, one-level cyclone, second grade cyclone and heat exchanger, one side of heat carrier feeder is linked together with fluidized bed gasifier's bottom, the opposite side of heat carrier feeder is connected with the pay-off area, the other end in pay-off area is connected with heat carrier spiral feeder, heat carrier spiral feeder one side intercommunication has fluidized bed gasifier, fluidized bed gasifier keeps away from one side of heat carrier spiral feeder and installs biomass spiral feeder, one side of fluidized bed gasifier is connected with the one-level cyclone that is located biomass spiral feeder top, one-level cyclone is connected with second grade cyclone, second grade cyclone one side is connected with heat exchanger, one side of heat exchanger is connected with gas storage device, the output of heat exchanger is linked together with fluidized bed gasifier's bottom.
Further, the heat carrier screw feeder and the biomass screw feeder are arranged oppositely, and microwave heaters are arranged on the side faces of the heat carrier screw feeder and the biomass screw feeder.
Further, the installation height of the heat carrier screw feeder is 50% of the height of the fluidized bed gasifier, and the installation height of the biomass screw feeder is 10% of the height of the fluidized bed gasifier.
Furthermore, the bottom end of the primary cyclone separator is communicated with a material return pipe, and the other end of the material return pipe is communicated with the fluidized bed gasifier.
Furthermore, an ash hopper is arranged below the secondary cyclone separator, and an ash feeding pipe is communicated between the ash hopper and the secondary cyclone separator.
Furthermore, the bottom of the fluidized bed gasifier is provided with small holes, and the small holes are connected with a heat carrier feeder.
The utility model has the advantages that:
the utility model discloses a biomass gasification device, send into fluidized bed gasifier in-process with living beings through living beings spiral feeder, microwave heater through living beings spiral feeder side-mounting preheats the living beings, the rate of rise and gasification efficiency behind the living beings entering gasification device have been improved, set up the heat carrier egress opening in fluidized bed gasifier bottom, send the heat carrier of bottom to heat carrier spiral feeder through heat carrier feeder and pay-off area, and carry out the direct heating to the heat carrier through microwave heater, the heating efficiency of device has been improved, the heat loss has been reduced, give gasification medium through the heat transfer of heat exchanger with the heat transfer of high temperature gas, gasification device's waste heat has been retrieved to the part, energy utilization is improved.
Drawings
Fig. 1 is a schematic structural diagram of a biomass gasification device of the present invention.
Reference symbol comparison table:
1. a heat carrier feeder; 2. a feed belt; 3. a screw feeder of heat carrier; 4. a microwave heater; 5. a fluidized bed gasifier; 6. a biomass screw feeder; 7. a material returning pipe; 8. an ash hopper; 9. a gas storage device; 10. a ash feeding pipe; 11. a primary cyclone separator; 12. a secondary cyclone separator; 13. a heat exchanger.
Detailed Description
The following describes the present invention with reference to the accompanying drawings. In which like parts are designated by like reference numerals.
It should be noted that the terms "front," "back," "left," "right," "upper" and "lower" used in the following description refer to directions in the drawings, and the terms "inner" and "outer" refer to directions toward and away from, respectively, the geometric center of a particular component.
In order to make the content of the present invention more clearly understood, the technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the attached drawings in the embodiment of the present invention.
As shown in fig. 1, a biomass gasification device comprises a heat carrier feeder 1, a heat carrier screw feeder 3, a microwave heater 4, a fluidized bed gasifier 5, a biomass screw feeder 6, a fuel gas storage device 9, a primary cyclone separator 11, a secondary cyclone separator 12 and a heat exchanger 13, wherein one side of the heat carrier feeder 1 is communicated with the bottom of the fluidized bed gasifier 5, the other side of the heat carrier feeder 1 is connected with a feeding belt 2, the other end of the feeding belt 2 is connected with the heat carrier screw feeder 3, one side of the heat carrier screw feeder 3 is communicated with the fluidized bed gasifier 5, one side of the fluidized bed gasifier 5, which is far away from the heat carrier screw feeder 3, is provided with the biomass screw feeder 6, one side of the fluidized bed gasifier 5 is connected with the primary cyclone separator 11 which is positioned above the biomass screw feeder 6, the primary cyclone separator 11 is connected with the secondary cyclone separator 12, one side of the secondary cyclone separator 12 is connected with the heat exchanger 13, one side of the heat exchanger 13 is connected with the fuel gas storage device 9, and the output end of the heat exchanger 13 is communicated with the bottom of the fluidized bed gasifier 5.
Specifically, a part of the heat carrier in the fluidized bed gasifier 5 flows into the heat carrier feeder 1 through a pipeline under the action of gravity, and then the heat carrier enters the heat carrier screw feeder 3 through the feeding belt 2.
The heat carrier screw feeder 3 and the biomass screw feeder 6 are arranged oppositely, and microwave heaters 4 are arranged on the side surfaces of the heat carrier screw feeder 3 and the biomass screw feeder 6.
The installation height of the heat carrier screw feeder 3 was 50% of the height of the fluidized bed gasifier 5, and the installation height of the biomass screw feeder 6 was 10% of the height of the fluidized bed gasifier 5.
Specifically, when the heat carrier or the biomass particles pass through, the microwave heater 4 is started to work to directly heat the heat carrier particles or the biomass particles;
the bottom end of the primary cyclone separator 11 is communicated with a material return pipe 7, and the other end of the material return pipe 7 is communicated with the fluidized bed gasifier 5.
An ash bucket 8 is arranged below the secondary cyclone separator 12, and an ash feeding pipe 10 is communicated between the ash bucket 8 and the secondary cyclone separator 12.
Specifically, the high-temperature fuel gas and the unreacted biomass particles are separated by a primary cyclone separator 11, the unreacted biomass particles are returned to the fluidized bed gasifier 5 through a return pipe 7 for further gasification, the high-temperature fuel gas and the biomass fine ash flowing out of the primary cyclone separator 11 are further separated by a secondary cyclone separator 12, the biomass fine ash flows into an ash hopper 8 through an ash feeding pipe 10,
the bottom of the fluidized bed gasifier 5 is provided with a small hole which is connected with the heat carrier feeder 1.
Specifically, the heat carrier falls into the heat carrier feeder 1 through the small holes, and the heat carrier feeder 1 is driven by a motor to send the heat carrier to the heat carrier feeder 1 through the feeding belt 2.
The utility model discloses a concrete application method, this device is when using, biomass raw material particle gets into in fluidized bed gasifier 5 through biomass spiral feeder 6, wherein, install microwave heater 4 to the side of biomass spiral feeder 6 and carry out the direct heating to biomass raw material, realize quick biomass preheating, the high temperature gas that gasification obtained in fluidized bed gasifier 5 carries partial complete living beings fine particle of unreacted living beings to pass through the pipeline entering one-level cyclone 11 of fluidized bed gasifier 5 side, further send flying ash and high temperature gas into in second grade cyclone 12, and the living beings fine particle that obtains of separation then gets into fluidized bed gasifier 5 again through feed back pipe 7 and participates in the gasification reaction, flying ash and high temperature gas further separate in second grade cyclone 12, flying ash passes through ash conveying pipe 10 and gets into in ash bucket 8, and high temperature gas then finally gets into in gas storage device 9 via heat exchanger 13, gasification medium accepts the heat of high temperature gas at heat exchanger 13 and gets into the gasification reaction from fluidized bed gasifier 5 bottom, in gasification, open there is the aperture bottom of fluidized bed gasifier 5, through this aperture feeder, and fall into in spiral feeder 1, and the spiral heater 2, the microwave heating of spiral heater is realized the gasification heat carrier and is heated in its gasification heat carrier entering fluidized bed gasification reaction 5, gasification after 3, the direct heating, the gasification process.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not intended to limit the present invention, and all modifications, equivalents, improvements and the like that are made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.
Claims (6)
1. A biomass gasification device comprises a heat carrier feeder (1), a heat carrier screw feeder (3), a microwave heater (4), a fluidized bed gasifier (5), a biomass screw feeder (6), a fuel gas storage device (9), a primary cyclone separator (11), a secondary cyclone separator (12) and a heat exchanger (13), it is characterized in that one side of the heat carrier feeder (1) is communicated with the bottom of the fluidized bed gasifier (5), the other side of the heat carrier feeder (1) is connected with a feeding belt (2), the other end of the feeding belt (2) is connected with a heat carrier screw feeder (3), one side of the heat carrier screw feeder (3) is communicated with a fluidized bed gasifier (5), a biomass screw feeder (6) is arranged on one side of the fluidized bed gasifier (5) far away from the heat carrier screw feeder (3), one side of the fluidized bed gasifier (5) is connected with a primary cyclone separator (11) positioned above the biomass screw feeder (6), the primary cyclone separator (11) is connected with the secondary cyclone separator (12), one side of the secondary cyclone separator (12) is connected with a heat exchanger (13), one side of the heat exchanger (13) is connected with a fuel gas storage device (9), the output end of the heat exchanger (13) is communicated with the bottom of the fluidized bed gasifier (5).
2. The biomass gasification apparatus according to claim 1, wherein: the heat carrier screw feeder (3) and the biomass screw feeder (6) are arranged oppositely, and microwave heaters (4) are arranged on the side faces of the heat carrier screw feeder (3) and the biomass screw feeder (6).
3. The biomass gasification device according to claim 1, wherein: the installation height of the heat carrier screw feeder (3) is 50% of the height of the fluidized bed gasifier (5), and the installation height of the biomass screw feeder (6) is 10% of the height of the fluidized bed gasifier (5).
4. The biomass gasification device according to claim 1, wherein: the bottom end of the primary cyclone separator (11) is communicated with a material return pipe (7), and the other end of the material return pipe (7) is communicated with the fluidized bed gasifier (5).
5. The biomass gasification apparatus according to claim 1, wherein: an ash hopper (8) is arranged below the secondary cyclone separator (12), and an ash feeding pipe (10) is communicated between the ash hopper (8) and the secondary cyclone separator (12).
6. The biomass gasification device according to claim 1, wherein: the bottom of the fluidized bed gasifier (5) is provided with a small hole which is connected with the heat carrier feeder (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223596328.3U CN218665928U (en) | 2022-12-30 | 2022-12-30 | Biomass gasification device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223596328.3U CN218665928U (en) | 2022-12-30 | 2022-12-30 | Biomass gasification device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218665928U true CN218665928U (en) | 2023-03-21 |
Family
ID=85551604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223596328.3U Active CN218665928U (en) | 2022-12-30 | 2022-12-30 | Biomass gasification device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218665928U (en) |
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2022
- 2022-12-30 CN CN202223596328.3U patent/CN218665928U/en active Active
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