CN205191555U - High -efficient separation returning charge ware of circulating fluidized bed boiler - Google Patents
High -efficient separation returning charge ware of circulating fluidized bed boiler Download PDFInfo
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- CN205191555U CN205191555U CN201520904256.5U CN201520904256U CN205191555U CN 205191555 U CN205191555 U CN 205191555U CN 201520904256 U CN201520904256 U CN 201520904256U CN 205191555 U CN205191555 U CN 205191555U
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- fluidized bed
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Abstract
The utility model discloses a high -efficient separation returning charge ware of circulating fluidized bed boiler has solved circulating fluidized bed's the easy vibration of separation returning charge ware and the problem that separation efficiency is low of separator. Including riser (2), be connected with cyclone (1) at the top of riser (2), be connected with returning charge ware (3) in the bottom side of riser (2), be connected with a returning charge section of thick bamboo (4) on returning charge ware (3), be provided with returning charge slide (5) of slope on the bottom face of riser (2), be provided with returning charge wind hood (6) on the bottom surface of returning charge ware (3). The utility model discloses simple structure, it is convenient to maintain, has improved the separation efficiency of the separation returning charge ware of circulating fluidized bed boiler, has eliminated the inducement of feed back ware vibration.
Description
Technical field
The present invention relates to a kind of CFBB, particularly a kind of separation material returning device of CFBB.
Background technology
At present, in Properties of CFB is run, the separation material returning device of CFBB deposits defect both ways: (1) is loosening wind blast cap because the riser bottom immediately below cyclone separator is provided with, loosen on wind direction and blow afloat circulating ash, when circulating ash quantity is less, be easy at standpipe place form circulating ash superposed layer, i.e. so-called " bridging " phenomenon; When circulating ash accumulation is larger, unexpected slump can gets off, the defeated ash of pulsation of repetition can be formed like this, cause the vibration of material returning device.(2) circulating ash rotates in the separator; larger particles ash can fall along separator and standpipe tube wall surrounding; negative pressure is formed centrally in separator and standpipe; flue gas enters back-end ductwork after centrally upwards leaving separator; under loosening wind action; the thin ash " being kicked up " of part, thus separator of upwards escaping under the carrying secretly of negative pressure flue gas, make the separative efficiency of separator reduce.
Summary of the invention
The invention provides a kind of efficient separation material returning device of CFBB, the separation material returning device solving recirculating fluidized bed easily vibrates the technical problem low with the separative efficiency of separator.
The present invention solves above technical problem by the following technical programs:
A kind of efficient separation material returning device of CFBB, comprise standpipe, cyclone separator is connected with at the top of standpipe, returning charge room is connected with in the side, bottom of standpipe, returning charge room is connected with returning charge cylinder, the bottom face of standpipe is provided with the returning charge slide plate of inclination, the bottom surface of returning charge room is provided with returning charge wind blast cap.
The inclination angle of the returning charge slide plate of the inclination that the bottom face of standpipe is arranged is 60 degree.
Structure of the present invention is simple, easy to maintenance, improves the separative efficiency of the separation material returning device of CFBB, eliminates the inducement of material returning device vibration.
Accompanying drawing explanation
Fig. 1 is structural representation of the present invention.
Detailed description of the invention
Below in conjunction with accompanying drawing, the present invention is described in detail:
A kind of efficient separation material returning device of CFBB, comprise standpipe 2, cyclone separator 1 is connected with at the top of standpipe 2, returning charge room 3 is connected with in the side, bottom of standpipe 2, returning charge room 3 is connected with returning charge cylinder 4, the bottom face of standpipe 2 is provided with the returning charge slide plate 5 of inclination, the bottom surface of returning charge room 3 is provided with returning charge wind blast cap 6.
The inclination angle of the returning charge slide plate 5 of the inclination that the bottom face of standpipe 2 is arranged is 60 degree.
Remove loosening wind in the bottom of standpipe 2, install returning charge slide plate 5 additional, circulating ash, under self gravitation effect, enters returning charge room 3 along returning charge slide plate 5 gravity flow, and enter burner hearth under returning charge wind action.Owing to not loosening wind, the circulating ash in standpipe 2 can not produce " bridging " phenomenon, can avoid because the material returning device vibration of the defeated ash generation of pulsation; In addition, owing to not loosening wind, thin ash " can not be kicked up " and be carried secretly by negative pressure, can improve separative efficiency.
Claims (2)
1. the efficient separation material returning device of a CFBB, comprise standpipe (2), cyclone separator (1) is connected with at the top of standpipe (2), material returning device (3) is connected with in the side, bottom of standpipe (2), material returning device (3) is connected with returning charge cylinder (4), it is characterized in that, the bottom face of standpipe (2) is provided with the returning charge slide plate (5) of inclination, the bottom surface of material returning device (3) is provided with returning charge wind blast cap (6).
2. the efficient separation material returning device of a kind of CFBB according to claim 1, is characterized in that, the inclination angle of the returning charge slide plate (5) of the inclination that the bottom face of standpipe (2) is arranged is 60 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520904256.5U CN205191555U (en) | 2015-11-15 | 2015-11-15 | High -efficient separation returning charge ware of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520904256.5U CN205191555U (en) | 2015-11-15 | 2015-11-15 | High -efficient separation returning charge ware of circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205191555U true CN205191555U (en) | 2016-04-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520904256.5U Active CN205191555U (en) | 2015-11-15 | 2015-11-15 | High -efficient separation returning charge ware of circulating fluidized bed boiler |
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| CN (1) | CN205191555U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299637A (en) * | 2015-11-15 | 2016-02-03 | 国网山西省电力公司电力科学研究院 | Efficient separation return feeder of circulating fluidized boiler |
| CN108105762A (en) * | 2017-12-27 | 2018-06-01 | 杨松 | It is a kind of to prepare kaolin Circulation fluidized-bed furnace material returning device application method |
| CN110173686A (en) * | 2019-05-16 | 2019-08-27 | 北京盛赢节能技术有限公司 | One kind can pressure-bearing material returning device |
-
2015
- 2015-11-15 CN CN201520904256.5U patent/CN205191555U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105299637A (en) * | 2015-11-15 | 2016-02-03 | 国网山西省电力公司电力科学研究院 | Efficient separation return feeder of circulating fluidized boiler |
| CN108105762A (en) * | 2017-12-27 | 2018-06-01 | 杨松 | It is a kind of to prepare kaolin Circulation fluidized-bed furnace material returning device application method |
| CN110173686A (en) * | 2019-05-16 | 2019-08-27 | 北京盛赢节能技术有限公司 | One kind can pressure-bearing material returning device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |