CN202598500U - Replaceable anti-wearing coal supply pipe of circulating fluidized bed boiler - Google Patents
Replaceable anti-wearing coal supply pipe of circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN202598500U CN202598500U CN 201220060219 CN201220060219U CN202598500U CN 202598500 U CN202598500 U CN 202598500U CN 201220060219 CN201220060219 CN 201220060219 CN 201220060219 U CN201220060219 U CN 201220060219U CN 202598500 U CN202598500 U CN 202598500U
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- China
- Prior art keywords
- coal
- inclined tube
- wearing
- coal supply
- supply pipe
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- Expired - Fee Related
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Abstract
The utility model discloses a replaceable anti-wearing coal supply pipe of a circulating fluidized bed boiler. By using the replaceable anti-wearing coal supply pipe, easy-to-wear parts can be replaced conveniently, the replacing workload is small, the maintenance time of the coal supply pipe is reduced, and the long-time stable operation of the boiler is guaranteed. The replaceable anti-wearing coal supply pipe comprises an inclined pipe which is arranged in a downwards inclining way; a coal inlet is arranged at the upper side of an outer circle surface at the upper part of the inclined pipe; the coal inlet is connected with a vertical coal supply standpipe; and a lower end hole of the inclined pipe serves as a coal outlet. The replaceable anti-wearing coal supply pipe is characterized in that a limiting block is fastened at the lower side of the inner wall of the inclined pipe; the limiting block externally protrudes the inner wall of the inclined pipe; an anti-wearing plate is slantwise arranged in the inclined pipe, is located under the coal inlet and is adhered to the inner wall at the lower side of the inclined pipe; the lower end part of the anti-wearing plate is tightly adhered to the limiting block; a cover plate is connected with the upper section of the anti-wearing plate; and an upper end part of the cover plate extends to an upper end port of the inclined pipe.
Description
Technical field
The utility model relates to the feed pipe technical field of structures of CFBB, is specially a kind of changeable type CFBB abrasionproof coal-feeding tube.
Background technology
The burning in circulating fluid bed boiler technology is a coal combustion technology that grows up over nearly 20 years, and it has that fuel tolerance is wide, efficiency of combustion is high, discharged nitrous oxides is low, load regulation rate is big and outstanding advantage such as Load Regulation is fast.The coal-feeding tube of existing CFBB weares and teares in fuel impact place that receives vertical drop easily, and is low at fuel value especially, is more prone to when coal-supplying amount is big be worn; Need often to change, and need dismantle many group parts when changing, change trouble; And owing to change trouble; Workload during replacing is big, and the repair time of coal-feeding tube is long, thereby influences the long-term stability operation of boiler.
Summary of the invention
To the problems referred to above, the utility model provides a kind of changeable type CFBB abrasionproof coal-feeding tube, and it makes that the replacing convenience and the replacing workload at position easy to wear are little, reduces the repair time of coal-feeding tube, guarantees the long-term stability operation of boiler.
A kind of changeable type CFBB abrasionproof coal-feeding tube, its technical scheme is such: it comprises inclined tube, said inclined tube is oblique to be arranged down; The upside of the top periphery of said inclined tube is provided with coal feed point, and said coal feed point connects vertical coal supply standpipe, and the following stomidium of said inclined tube is a coal outlet; It is characterized in that: limited block is anchored on the downside of the inwall of said inclined tube; Said limited block evagination is in the inwall of said inclined tube, and wear strip is oblique to be arranged in the said inclined tube, said wear strip be positioned at said coal feed point vertically under the position; The fit downside inwall of said inclined tube of said wear strip; Said limited block is close in the bottom of said wear strip, and the epimere of said wear strip is connected with cover plate, and the upper end of said cover plate extends to the port of said inclined tube; The port of said inclined tube is fastened with the cover plate flange, and the downside near the periphery of port of said inclined tube has air inlet.
After adopting the structure of the utility model, coal gets into along coal feed point through the coal supply standpipe, because the gravity effect; The coal of vertical drop under wear strip the certain impact effect is arranged, simultaneously coal stream also can down move ahead along inclined tube, the force action of this both direction makes that the wear strip of erect riser below is ground away easily; As find that this wear strip may wear in the time of can not continuing to use, and can take the cover plate flange of inclined tube port apart, take out the wear strip of experience wear through cover plate; New wear strip in the replacing; It makes that the replacing convenience and the replacing workload at position easy to wear are little, reduces the repair time of coal-feeding tube, guarantees the long-term stability operation of boiler.
Description of drawings
Fig. 1 is the structural representation of the utility model.
The specific embodiment
See Fig. 1, it comprises inclined tube 5, inclined tube 5 oblique layouts down; The upside of the top periphery of inclined tube 5 is provided with coal feed point 6, and coal feed point 6 connects vertical coal supply standpipe 7, and the following stomidium of inclined tube 5 is a coal outlet 8; Limited block 1 is anchored on the downside of the inwall of inclined tube 5, and limited block 5 evaginations are in the inwall of inclined tube, wear strip 2 oblique being arranged in the inclined tube 5; Wear strip 2 be positioned at coal feed point 6 vertically under the position, the downside inwall of wear strip 2 applying inclined tubes 5, limited block 5 is close in the bottom of wear strip 2; The epimere of wear strip 2 is connected with cover plate 3; The upper end of cover plate 3 extends to the port of inclined tube 5, and the port of inclined tube 5 is fastened with cover plate flange 4, and the downside near the periphery of port of inclined tube 5 has air inlet 9.
Claims (1)
1. changeable type CFBB abrasionproof coal-feeding tube, it comprises inclined tube, said inclined tube is oblique to be arranged down; The upside of the top periphery of said inclined tube is provided with coal feed point, and said coal feed point connects vertical coal supply standpipe, and the following stomidium of said inclined tube is a coal outlet; It is characterized in that: limited block is anchored on the downside of the inwall of said inclined tube; Said limited block evagination is in the inwall of said inclined tube, and wear strip is oblique to be arranged in the said inclined tube, said wear strip be positioned at said coal feed point vertically under the position; The fit downside inwall of said inclined tube of said wear strip; Said limited block is close in the bottom of said wear strip, and the epimere of said wear strip is connected with cover plate, and the upper end of said cover plate extends to the port of said inclined tube; The port of said inclined tube is fastened with the cover plate flange, and the downside near the periphery of port of said inclined tube has air inlet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220060219 CN202598500U (en) | 2012-02-23 | 2012-02-23 | Replaceable anti-wearing coal supply pipe of circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220060219 CN202598500U (en) | 2012-02-23 | 2012-02-23 | Replaceable anti-wearing coal supply pipe of circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202598500U true CN202598500U (en) | 2012-12-12 |
Family
ID=47316033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220060219 Expired - Fee Related CN202598500U (en) | 2012-02-23 | 2012-02-23 | Replaceable anti-wearing coal supply pipe of circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202598500U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537948A (en) * | 2012-02-23 | 2012-07-04 | 无锡华光锅炉股份有限公司 | Replaceable abrasion-resistant coal feeding pipe for circulating fluid bed boiler |
| CN105927974A (en) * | 2016-06-24 | 2016-09-07 | 无锡华光锅炉股份有限公司 | Coal clogging-resistant coal feeder of circulating fluidized bed |
-
2012
- 2012-02-23 CN CN 201220060219 patent/CN202598500U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102537948A (en) * | 2012-02-23 | 2012-07-04 | 无锡华光锅炉股份有限公司 | Replaceable abrasion-resistant coal feeding pipe for circulating fluid bed boiler |
| CN105927974A (en) * | 2016-06-24 | 2016-09-07 | 无锡华光锅炉股份有限公司 | Coal clogging-resistant coal feeder of circulating fluidized bed |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121212 Termination date: 20180223 |