CN2924313Y - Injection type cyclone back feeder - Google Patents
Injection type cyclone back feeder Download PDFInfo
- Publication number
- CN2924313Y CN2924313Y CN 200620086157 CN200620086157U CN2924313Y CN 2924313 Y CN2924313 Y CN 2924313Y CN 200620086157 CN200620086157 CN 200620086157 CN 200620086157 U CN200620086157 U CN 200620086157U CN 2924313 Y CN2924313 Y CN 2924313Y
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- utility
- model
- returning
- ash
- absorption type
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Abstract
The utility model provides a shooting-absorbing type cyclone material-returning device. The utility model comprises a material-returning standing pipe, a material-returning lean pipe, an ash-discharging pipe and a man-hole. The utility model is characterized in that the shooting-absorbing type cyclone material-returning device also includes a shooting-absorbing device and a throat pipe. The utility model can make the thin ash of the returned material burn thoroughly, having excellently solved the problems of singed material and fly ash. The circulated material in the utility model is difficult to be blocked and trapped, reducing the happening of boiler-stop. The utility model runs safely and reliably with a long service life, and the burning condition of material is better and the heat efficiency is high.
Description
Technical field
The utility model relates to a kind of fluidized-bed combustion boiler material returning device, particularly a kind of jet absorption type whirlwind material returning device belongs to mechanical engineering field.
Background technology
The CFBB material returning device is the key equipment that guarantees the solid particle circulation, and its effect should guarantee that recycle stock send from negative pressuren zone toward zone of positive pressure, guarantees to seal not short circuit of flue gas anti-channeling again.In the CFBB that adopts high-temperature separator, the recycle stock temperature is up to more than 800 ℃, dependence forms material level from the collected high-temp circulating ash of high-temperature separator in the material returning device standpipe, overcome the flow resistance in the material returning device and play grey envelope effect with it.Adopt the returning charge blower fan in the inflation of material returning device bottom during operation, the loosening wind and the returning charge wind that utilize aerofoil blast cap never to blow out are being transmitted back in the stove continually from the collected a large amount of high-temp circulating ash of separator.
In the prior art, because operating condition changes and the coal variation all can cause the recycle stock temperature fluctuation, in case surpass the fusion point of ash temperature, or have the refractory material that peels off explosion from material returning device top to fall into material returning device to cause local goods fluid bad, all will cause the local coking of recycle stock in the material returning device, and make circulation be obstructed, stop up the blowing out accident that causes, in addition, prior art also exists thin ash burning insufficient, the problem of flyash.
Summary of the invention
In order to solve above-mentioned defective and deficiency, the purpose of this utility model is to provide a kind of jet absorption type whirlwind material returning device, and thin ash is fully burnt, and solves problems such as material coking and flyash.
The purpose of this utility model is achieved in that a kind of jet absorption type whirlwind material returning device, comprises returning charge standpipe, returning charge inclined tube, dust leg and manhole, it is characterized in that being provided with on returning charge inclined tube center line penetrating inhaling device and trunnion.
The utility model is penetrated the suction device and is comprised injecting tube and dried protecting pipe; Injecting tube is distributed in dried protecting pipe inside, keeps certain clearance around dried protecting pipe and the injecting tube; Trunnion is fixed on the returning charge standpipe tube wall; The injecting tube jet extends in the trunnion.
Characteristics compared with prior art of the present utility model: advance negative pressure cabin through the isolated dry ash of cyclone separator and cool off, cooled dry ash is through penetrating haustorium resume combustion section, the temperature of resume combustion section is in the time of 650-750 ℃, enter the fire box circulating combustion, thin ash is fully burnt, well solved problems such as coking and flyash, because injecting tube burns in the high temperature ash for a long time, cooling changes dried protecting pipe into, has reached good effect.
Description of drawings
Fig. 1 is a structure chart of the present utility model.
The specific embodiment
As shown in Figure 1, the 1st, returning charge standpipe, the 2nd, returning charge inclined tube, the 3rd, dried protecting pipe, the 4th, injecting tube, the 5th, trunnion, other numbering representatives is manhole 6 among Fig. 1, dust leg 7, returning charge wind 8.This equipment trunnion 5 is installed on the tube wall of returning charge standpipe 1, and injecting tube 4, trunnion 5 and returning charge inclined tube 2 central lines keep certain clearance around dried protecting pipe and the injecting tube, adopts special material and special welding manner to be welded.
Operation principle of the present utility model is: enter returning charge standpipe 1 through the isolated thin ash of cyclone separator through the cone outlet, the returning charge dry ash forms the dry ash column in returning charge standpipe 1, dry ash is through injecting tube 4 resume combustion sections, the temperature of resume combustion section is in the time of 650 ℃-750 ℃, suitably control the air quantity of giving of returning charge wind 8 according to what and variation of temperature of dry ash amount, under the effect of returning charge wind 8, the returning charge dry ash enters returning charge inclined tube 2 through trunnion 5, dry ash is under the acting in conjunction of its gravity and returning charge wind 8, overcome the stove internal resistance, enter the burner hearth circulating combustion, this equipment can also be observed inner case by manhole 6, and unnecessary returning charge dry ash is emitted by dust leg.
Claims (5)
1, a kind of jet absorption type whirlwind material returning device comprises returning charge standpipe, returning charge inclined tube, dust leg and manhole, it is characterized in that being provided with on returning charge inclined tube center line penetrating inhaling device and trunnion.
2, a kind of jet absorption type whirlwind material returning device according to claim 1 is characterized in that penetrating the suction device and comprises injecting tube and dried protecting pipe.
3, a kind of jet absorption type whirlwind material returning device according to claim 2 is characterized in that injecting tube is distributed in dried protecting pipe inside, keeps certain clearance around dried protecting pipe and the injecting tube.
4, a kind of jet absorption type whirlwind material returning device according to claim 1 is characterized in that trunnion is fixed on the returning charge standpipe tube wall.
5, a kind of jet absorption type whirlwind material returning device according to claim 2 is characterized in that the injecting tube jet extends in the trunnion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086157 CN2924313Y (en) | 2006-06-30 | 2006-06-30 | Injection type cyclone back feeder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620086157 CN2924313Y (en) | 2006-06-30 | 2006-06-30 | Injection type cyclone back feeder |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2924313Y true CN2924313Y (en) | 2007-07-18 |
Family
ID=38260745
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620086157 Expired - Fee Related CN2924313Y (en) | 2006-06-30 | 2006-06-30 | Injection type cyclone back feeder |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2924313Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734826A (en) * | 2012-07-09 | 2012-10-17 | 无锡锡东能源科技有限公司 | Biomass boiler feeding structure with ejector |
| CN103629662A (en) * | 2013-11-08 | 2014-03-12 | 长兴新城环保有限公司 | Boiler return feeder |
-
2006
- 2006-06-30 CN CN 200620086157 patent/CN2924313Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102734826A (en) * | 2012-07-09 | 2012-10-17 | 无锡锡东能源科技有限公司 | Biomass boiler feeding structure with ejector |
| CN103629662A (en) * | 2013-11-08 | 2014-03-12 | 长兴新城环保有限公司 | Boiler return feeder |
| CN103629662B (en) * | 2013-11-08 | 2016-01-20 | 长兴新城环保有限公司 | A kind of boiler return feeder |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070718 |