CN205088198U - Spiral -flow type circulating fluidized bed - Google Patents
Spiral -flow type circulating fluidized bed Download PDFInfo
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- CN205088198U CN205088198U CN201520779069.9U CN201520779069U CN205088198U CN 205088198 U CN205088198 U CN 205088198U CN 201520779069 U CN201520779069 U CN 201520779069U CN 205088198 U CN205088198 U CN 205088198U
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- fluidized bed
- tuyere
- bed body
- fluidized
- whirlwind
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Abstract
The utility model discloses a spiral -flow type circulating fluidized bed, it includes cylindric fluidized bed body, charge -in system, air inlet system, cyclone and gas exports, and interface channel and cyclone upper portion intercommunication are passed through to the top of fluidized bed body, and the bottom of fluidized bed body is provided with the tuyere, and air inlet system and tuyere intercommunication set up multi -disc evenly distributed at the inside water conservancy diversion piece of tuyere in the tuyere, adjacent two form the wind channel between the water conservancy diversion piece, charge -in system's feed end stretches into the fluidized bed along the tangential direction of fluidized bed body circular section, and this is internal. The wind channel that forms through the water conservancy diversion piece and the whirl that produces promote biomass feedstock and upwards carry out gasification reaction, effectively avoid reunion, lamination in the fluidized bed gasifica tion stove, and the whirl orientation that produces and cyclone's importer is favorable to improving the dust collection efficiency of whirlwind dust removal to the unanimity to obtain uncontaminated gas. The utility model is suitable for an in the fluidized bed gasifica tion stove.
Description
Technical field
The utility model relates to a kind of biomass gasifying furnace, particularly a kind of whirlwind-type circulating fluidized bed.
Background technology
Fluidized-bed gasification furnace due to fuel tolerance strong; continuous service ability is strong, combustion gas quality stable, gasification intensity is high; one of mainstream technology developing into gasifying biomass gradually; the fluidized-bed adopted in engineering is bubbling fluidized bed and circulating fluidized bed mainly; due to particle properties; gas velocity or fluidized-bed structure unreasonable, often there will be some abnormal fluidisation phenomenons, as channel, layering and local mobility difference etc. phenomenon.
Utility model content
The purpose of this utility model, be to provide a kind of whirlwind-type circulating fluidized bed, effectively can solve fluidized-bed gasification furnace fuel in prior art and easily reunite, the phenomenon of layering, and fuel and gasifying medium are mixed fully, improves gasification intensity and gasification efficiency.
The solution that the utility model solves its technical problem is: a kind of whirlwind-type circulating fluidized bed, it comprises columned fluidized-bed body, feed system, air inlet system, cyclonic separator and be positioned at the gas outlet on cyclonic separator top, the top of described fluidized-bed body is communicated with cyclonic separator top by connecting passage, the bottom of fluidized-bed body is provided with tuyere, described air inlet system is communicated with tuyere, the inducer that multi-disc is evenly distributed on tuyere inside is set in described tuyere, formed along clockwise direction between inducer described in adjacent two panels or spiralling air channel in the counterclockwise direction, the feed end of described feed system stretches in fluidized-bed body along the tangential direction of fluidized-bed body circular section.
As the further improvement of technique scheme, the below of described cyclonic separator is provided with material returning device, and one end of described material returning device is communicated with the bottom of fluidized-bed body.
As the further improvement of technique scheme, the appearance surface cover of described material returning device has pre-hot bellows, and described air inlet system comprises fan, and described fan is communicated with pre-hot bellows and tuyere successively by gas distribution pipeline.
As the further improvement of technique scheme, one end of described connecting passage is stretched in fluidized-bed body with the tangential direction along fluidized-bed body circular section, and the other end of connecting passage stretches in cyclonic separator along the tangential direction of cyclonic separator circular section.
As the further improvement of technique scheme, all described air channels spiral along clockwise direction, or, all described air channels spiral in the counterclockwise direction.
As the further improvement of technique scheme, the importer of described connecting passage is to consistent with the eddy flow direction that described air channel produces.
As the further improvement of technique scheme, described inducer setting angle is vertically 30 ~ 45 °, and the inducer angle be evenly distributed in the circular section of tuyere is 20 ~ 30 °.
As the further improvement of technique scheme, described feed system is feeding screw, and described tuyere is positioned at below the feed end of feeding screw.
The beneficial effects of the utility model are: the air channel that the utility model is formed by inducer and the eddy flow that produces promote biomass material and upwards carry out gasification reaction, effectively avoid the reunion in fluidized-bed gasification furnace, demixing phenomenon, and the eddy flow direction of generation and the importer of tornado dust collector are to consistent, be conducive to the efficiency of dust collection improving cyclone dust removal, thus obtain clean combustion gas, in addition, tangential admission and the gasifying medium of feeding screw fully collide, mix, and improve raw material availability, improve gasification efficiency.The utility model is applicable in fluidized-bed gasification furnace.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described.Obviously, described accompanying drawing is a part of embodiment of the present utility model, instead of whole embodiment, and those skilled in the art, under the prerequisite not paying creative work, can also obtain other designs and accompanying drawing according to these accompanying drawings.
Fig. 1 is structural representation of the present utility model;
Fig. 2 be in Fig. 1 A-A to structural scheme of mechanism;
Fig. 3 be in Fig. 1 B-B to structural representation;
Fig. 4 is vertical view of the present utility model.
Embodiment
Be clearly and completely described below with reference to embodiment and the accompanying drawing technique effect to design of the present utility model, concrete structure and generation, to understand the purpose of this utility model, characteristic sum effect fully.Obviously; described embodiment is a part of embodiment of the present utility model, instead of whole embodiment, based on embodiment of the present utility model; other embodiments that those skilled in the art obtains under the prerequisite not paying creative work, all belong to the scope of the utility model protection.In addition, all connection/annexations mentioned in literary composition, not singly refer to that component directly connects, and refer to and according to concrete performance, can connect auxiliary by adding or reducing, and form more excellent draw bail.
With reference to Fig. 1 ~ Fig. 4, a kind of whirlwind-type circulating fluidized bed, it comprises columned fluidized-bed body 4, feed system, air inlet system, cyclonic separator 6 and be positioned at the gas outlet 61 on cyclonic separator 6 top, the top of described fluidized-bed body 4 is communicated with cyclonic separator 6 top by connecting passage 62, the bottom of fluidized-bed body 4 is provided with tuyere 2, described air inlet system is communicated with tuyere 2, the inducer 21 that multi-disc is evenly distributed on tuyere 2 inside is set in described tuyere 2, formed along clockwise direction between inducer 21 described in adjacent two panels or spiralling air channel in the counterclockwise direction, the feed end of described feed system stretches in fluidized-bed body 4 along the tangential direction of fluidized-bed body 4 circular section.
Be further used as preferred embodiment, the below of described cyclonic separator 6 is provided with material returning device 5, and one end of described material returning device 5 is communicated with the bottom of fluidized-bed body 4.
Be further used as preferred embodiment, the appearance surface cover of described material returning device 5 has pre-hot bellows 12, and described air inlet system comprises fan 1, and described fan 1 is communicated with pre-hot bellows 12 and tuyere 2 successively by gas distribution pipeline 11.
Be further used as preferred embodiment, one end of described connecting passage 62 is stretched in fluidized-bed body 4 with the tangential direction along fluidized-bed body 4 circular section, and the other end of connecting passage 62 stretches in cyclonic separator 6 along the tangential direction of cyclonic separator 6 circular section.
Be further used as preferred embodiment, all described air channels spiral along clockwise direction, or, all described air channels spiral in the counterclockwise direction.
Be further used as preferred embodiment, the importer of described connecting passage 62 is to consistent with the eddy flow direction that described air channel produces.
Be further used as preferred embodiment, described inducer 21 setting angle is vertically 30 ~ 45 °, and inducer 21 angle be evenly distributed in the circular section of tuyere 2 is 20 ~ 30 °.
Be further used as preferred embodiment, described feed system is feeding screw, and described tuyere 2 is positioned at below the feed end of feeding screw.
Air (gasifying medium) is sent into the bottom of fluidized-bed body 4 by fan 1 successively by tuyere 2 by pre-hot bellows 12, gas distribution pipeline 11, due to the effect of inducer 21, enter the gasifying medium generation eddy flow upwards of fluidized-bed body 4, biomass material tangentially enters after fluidized-bed body 4 and gasifying medium reverse-impact by feeding screw, abundant mixing, eddy flow upwards carries out gasification reaction, and the high-temperature fuel gas of generation tangentially enters cyclonic separator 6 through connecting passage 62.Through the udst separation of cyclonic separator 6, comparatively clean biological fuel gas is drawn from gas outlet 61, larger particulate matter and impurity is separated enters material returning device 5 downwards, reenters fluidized-bed body 4 with after the air dielectric heat exchange in pre-hot bellows 12.
More than that better embodiment of the present utility model is illustrated, but the invention is not limited to described embodiment, those of ordinary skill in the art also can make all equivalent modifications or replacement under the prerequisite without prejudice to the utility model spirit, and these equivalent modification or replacement are all included in the application's claim limited range.
Claims (8)
1. a whirlwind-type circulating fluidized bed, it comprises columned fluidized-bed body, feed system, air inlet system, cyclonic separator and be positioned at the gas outlet on cyclonic separator top, it is characterized in that: the top of described fluidized-bed body is communicated with cyclonic separator top by connecting passage, the bottom of fluidized-bed body is provided with tuyere, described air inlet system is communicated with tuyere, the inducer that multi-disc is evenly distributed on tuyere inside is set in described tuyere, formed along clockwise direction between inducer described in adjacent two panels or spiralling air channel in the counterclockwise direction, the feed end of described feed system stretches in fluidized-bed body along the tangential direction of fluidized-bed body circular section.
2. whirlwind-type circulating fluidized bed according to claim 1, is characterized in that: the below of described cyclonic separator is provided with material returning device, one end of described material returning device is communicated with the bottom of fluidized-bed body.
3. whirlwind-type circulating fluidized bed according to claim 2, is characterized in that: the appearance surface cover of described material returning device has pre-hot bellows, and described air inlet system comprises fan, and described fan is communicated with pre-hot bellows and tuyere successively by gas distribution pipeline.
4. whirlwind-type circulating fluidized bed according to claim 1, it is characterized in that: one end of described connecting passage is stretched in fluidized-bed body with the tangential direction along fluidized-bed body circular section, the other end of connecting passage stretches in cyclonic separator along the tangential direction of cyclonic separator circular section.
5. whirlwind-type circulating fluidized bed according to claim 1, is characterized in that: all described air channels spiral along clockwise direction, or, all described air channels spiral in the counterclockwise direction.
6. whirlwind-type circulating fluidized bed according to claim 5, is characterized in that: the importer of described connecting passage is to consistent with the eddy flow direction that described air channel produces.
7. whirlwind-type circulating fluidized bed according to claim 1, is characterized in that: described inducer setting angle is vertically 30 ~ 45 °, and the inducer angle be evenly distributed in the circular section of tuyere is 20 ~ 30 °.
8. whirlwind-type circulating fluidized bed according to claim 1, is characterized in that: described feed system is feeding screw, and described tuyere is positioned at below the feed end of feeding screw.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779069.9U CN205088198U (en) | 2015-10-09 | 2015-10-09 | Spiral -flow type circulating fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520779069.9U CN205088198U (en) | 2015-10-09 | 2015-10-09 | Spiral -flow type circulating fluidized bed |
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| Publication Number | Publication Date |
|---|---|
| CN205088198U true CN205088198U (en) | 2016-03-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520779069.9U Expired - Fee Related CN205088198U (en) | 2015-10-09 | 2015-10-09 | Spiral -flow type circulating fluidized bed |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019078787A1 (en) | 2017-10-19 | 2019-04-25 | Kosonsittiwit Phakorn | An apparatus for fuel gas production and combustion |
| CN110272763A (en) * | 2019-07-23 | 2019-09-24 | 上海万禾新能源开发有限公司 | Cyclone biomass gasifying furnace |
| CN112304031A (en) * | 2020-11-12 | 2021-02-02 | 哈尔滨工业大学 | Cyclone fluidized bed dryer for rapidly drying large-particle materials |
| CN112680250A (en) * | 2020-11-27 | 2021-04-20 | 国家能源集团煤焦化有限责任公司 | Fluidized bed gasification furnace and gas production system |
-
2015
- 2015-10-09 CN CN201520779069.9U patent/CN205088198U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2019078787A1 (en) | 2017-10-19 | 2019-04-25 | Kosonsittiwit Phakorn | An apparatus for fuel gas production and combustion |
| EP3697748A4 (en) * | 2017-10-19 | 2021-07-28 | Kosonsittiwit, Phakorn | An apparatus for fuel gas production and combustion |
| CN110272763A (en) * | 2019-07-23 | 2019-09-24 | 上海万禾新能源开发有限公司 | Cyclone biomass gasifying furnace |
| CN112304031A (en) * | 2020-11-12 | 2021-02-02 | 哈尔滨工业大学 | Cyclone fluidized bed dryer for rapidly drying large-particle materials |
| CN112304031B (en) * | 2020-11-12 | 2022-03-01 | 哈尔滨工业大学 | Cyclone fluidized bed dryer for rapidly drying large-particle materials |
| CN112680250A (en) * | 2020-11-27 | 2021-04-20 | 国家能源集团煤焦化有限责任公司 | Fluidized bed gasification furnace and gas production system |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160316 Termination date: 20171009 |
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| CF01 | Termination of patent right due to non-payment of annual fee |