CN101672470B - Deslagging device of circulating fluidized bed boiler - Google Patents
Deslagging device of circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN101672470B CN101672470B CN2009100344342A CN200910034434A CN101672470B CN 101672470 B CN101672470 B CN 101672470B CN 2009100344342 A CN2009100344342 A CN 2009100344342A CN 200910034434 A CN200910034434 A CN 200910034434A CN 101672470 B CN101672470 B CN 101672470B
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- deslagging
- fluidized bed
- tube
- water wall
- slag
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- Fluidized-Bed Combustion And Resonant Combustion (AREA)
Abstract
The invention relates to a deslagging device of a circulating fluidized bed boiler, in particular to a structural arrangement form of deslagging tubes of the deslagging device. The deslagging device comprises fluidized bed slag, a fluidized bed wind cap, a water wall tube, an expansion device and a lower collecting box, wherein the lower connecting box, the expansion device, the fluidized bed wind cap and the water wall tube are connected into a whole to form a water wall wind chamber. The deslagging device is characterized in that the water wall tube is connected with a reducing deslagging tube and penetrated through the water wall wind chamber, and the lower end of the reducing deslagging tube is provided with a deslagging valve. The invention has simple, compact and reasonable structure, convenient manufacture, practicability and easy implementation and thoroughly overcomes the defect of unsmooth deslagging of the circulating fluidized bed boiler at any time. As long as the diameters of slag pieces are not larger than the caliber of the upper end of the reducing deslagging tube, the slag pieces can be smoothly discharged absolutely. The invention can realize discontinuous deslagging by man power and can also realize mechanical continuous deslagging by connecting the reducing deslagging tube into an inlet of a slag cooler according to the arrangement condition of a boiler house of a user.
Description
Technical field
The present invention relates to a kind of deslagging device of circulating fluidized bed boiler, specifically relate to the scum pipe structural arrangement form of its slag-draining device.
Background technology
Diameter is identical up and down for the scum pipe of regular circulation fluidized-bed combustion boiler slag-draining device, unfavorable deslagging or deslagging are not smooth, and CFBB is in playing furnace igniting or normal course of operation, owing to multiple reason all produces coking phenomenon inevitably, the coke button that produces is not of uniform size, under the situation of not blowing out, need to discharge smoothly, do not produce obstruction from the scum pipe of slag-draining device, especially all the more so when the accident deslagging.This not only brings adverse influence to the boiler operatiopn operation, also is difficult to regulate bed temperature, and the safety and economic operation of serious threat boiler can cause the ignition of the boiler failure simultaneously, wastes energy, and causes the accident.
Summary of the invention
The objective of the invention is to overcome above-mentioned weak point, can realize CFBB at any time deslagging is smooth and easy, reduce its interruption of service rate, guarantee the deslagging device of circulating fluidized bed boiler of safe and economical boiler stable operation thereby provide a kind of.
According to technical scheme provided by the invention, deslagging device of circulating fluidized bed boiler comprises fluid bed slag, fluidized bed hood, water screen tube, expansion gear, next part case, and described next part case, expansion gear, fluidized bed hood and water screen tube are connected to a whole water cooled wind chamber of forming; Described water screen tube is connected with the reducing scum pipe and through water cooled wind chamber; The lower end of described reducing scum pipe is provided with residual cake valve.
Diameter was up-small and down-big when described reducing scum pipe was installed.
Compared with the prior art the present invention has the following advantages:
The present invention is simple, compact and reasonable for structure; Easily manufactured, practicality is easily gone; Thoroughly solved the not smooth drawback of CFBB deslagging slagging at any time, as long as the clinker diameter is not more than the bore of reducing scum pipe upper end and can both absolutely discharges smoothly, boiler room deployment scenarios according to the user, can manually be interrupted deslagging and also the import of reducing scum pipe access slag cooler can be realized mechanical continuous discharging slag, effect is fine.
Description of drawings
Fig. 1 is a structural front view of the present invention.
Fig. 2 is that structure A of the present invention is to view.
The specific embodiment
Embodiment during following the present invention incites somebody to action in conjunction with the accompanying drawings is further described:
As Fig. 1～shown in Figure 2, comprise fluid bed slag 1, fluidized bed hood 2, water screen tube 3, expansion gear 4, reducing scum pipe 5, residual cake valve 6, next part case 7 and water cooled wind chamber 8.
The present invention adopts reducing scum pipe 5 to be connected with water screen tube 3 and through water cooled wind chamber 8; Diameter was up-small and down-big when described reducing scum pipe 5 was installed, and a residual cake valve 6 is set in the lower end of reducing scum pipe 5 and is connected with it; Described next part case 7, expansion gear 4, fluidized bed hood 2 are connected to a whole water cooled wind chamber 8 of forming with water screen tube 3.
The reducing scum pipe 5 of deslagging device of circulating fluidized bed boiler of the present invention, it has utilized under the situation that focuses on no any frictional resistance certainly of material fluid bed slag 1 has been discharged for 5 li smoothly from the reducing scum pipe, stoker operating personnel are as long as manually be interrupted deslagging in real time according to burning in circulating fluid bed boiler chamber bed layer pressure parameter, and the aperture of perhaps adjusting residual cake valve 6 realizes the mechanization continuous discharging slag.
The present invention has not only brought convenience to boiler operatiopn operation, simultaneously to the quick adjustment bed temperature, carries out the accident deslagging and has played satisfied effect, can improve safe and economical boiler stable operation, the incidence of minimizing accident, but also energy savings simultaneously.
Claims (2)
1. deslagging device of circulating fluidized bed boiler, comprise fluid bed slag (1), fluidized bed hood (2), water screen tube (3), expansion gear (4), next part case (7), described next part case (7), expansion gear (4), fluidized bed hood (2) are connected to a whole water cooled wind chamber (8) of forming with water screen tube (3), it is characterized in that: described water screen tube (3) is connected with reducing scum pipe (5) and through water cooled wind chamber (8); The lower end of described reducing scum pipe (5) is provided with residual cake valve (6).
2. deslagging device of circulating fluidized bed boiler according to claim 1 is characterized in that described reducing scum pipe (5) diameter is up-small and down-big.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100344342A CN101672470B (en) | 2009-08-28 | 2009-08-28 | Deslagging device of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100344342A CN101672470B (en) | 2009-08-28 | 2009-08-28 | Deslagging device of circulating fluidized bed boiler |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101672470A CN101672470A (en) | 2010-03-17 |
| CN101672470B true CN101672470B (en) | 2011-01-05 |
Family
ID=42019812
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100344342A Expired - Fee Related CN101672470B (en) | 2009-08-28 | 2009-08-28 | Deslagging device of circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101672470B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102705835B (en) * | 2012-06-01 | 2015-04-01 | 无锡华光锅炉股份有限公司 | Large-caliber slag discharge pipe for circulating fluidized bed garbage boiler |
| CN102980199A (en) * | 2012-11-14 | 2013-03-20 | 辽宁省电力有限公司电力科学研究院 | Special system for interface of medium temperature flue gas pipeline and heating surface in middle storage type bituminous coal boiler |
| CN108050512A (en) * | 2017-12-05 | 2018-05-18 | 赣州华兴钨制品有限公司 | A kind of boiler hearth of circulating fluidized bed slag-draining device and its operating method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046177U (en) * | 1988-12-07 | 1989-10-18 | 湖南大学 | Fluidization combustion furnace |
| DE4317637C1 (en) * | 1993-05-27 | 1994-07-28 | Evt Energie & Verfahrenstech | Ash-extraction system from steam-generator |
| CN2494478Y (en) * | 2001-07-27 | 2002-06-05 | 毛鸿禧 | Air tank type cinder cooling apparatus |
| CN1536266A (en) * | 2003-04-04 | 2004-10-13 | 冯大勇 | Fluidized bed type slag-discharging technique capable of contralling cooling device and preventing coking in it |
| CN2753967Y (en) * | 2004-12-03 | 2006-01-25 | 西安热工研究院有限公司 | Circulating fluidized bed boiler bottom slag cooler |
| CN201503011U (en) * | 2009-08-28 | 2010-06-09 | 无锡海源重工股份有限公司 | Boiler slag-off device of cycling fluidized bed |
-
2009
- 2009-08-28 CN CN2009100344342A patent/CN101672470B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2046177U (en) * | 1988-12-07 | 1989-10-18 | 湖南大学 | Fluidization combustion furnace |
| DE4317637C1 (en) * | 1993-05-27 | 1994-07-28 | Evt Energie & Verfahrenstech | Ash-extraction system from steam-generator |
| CN2494478Y (en) * | 2001-07-27 | 2002-06-05 | 毛鸿禧 | Air tank type cinder cooling apparatus |
| CN1536266A (en) * | 2003-04-04 | 2004-10-13 | 冯大勇 | Fluidized bed type slag-discharging technique capable of contralling cooling device and preventing coking in it |
| CN2753967Y (en) * | 2004-12-03 | 2006-01-25 | 西安热工研究院有限公司 | Circulating fluidized bed boiler bottom slag cooler |
| CN201503011U (en) * | 2009-08-28 | 2010-06-09 | 无锡海源重工股份有限公司 | Boiler slag-off device of cycling fluidized bed |
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| Publication number | Publication date |
|---|---|
| CN101672470A (en) | 2010-03-17 |
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