CN203068548U - Coal spreading air system - Google Patents
Coal spreading air system Download PDFInfo
- Publication number
- CN203068548U CN203068548U CN 201320054805 CN201320054805U CN203068548U CN 203068548 U CN203068548 U CN 203068548U CN 201320054805 CN201320054805 CN 201320054805 CN 201320054805 U CN201320054805 U CN 201320054805U CN 203068548 U CN203068548 U CN 203068548U
- Authority
- CN
- China
- Prior art keywords
- coal
- spout
- spread wind
- pipe
- deep bead
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model provides a coal spreading air system which comprises a coal dropping pipe, wherein an observation hole is formed at one end of the coal dropping pipe; the other end of the coal dropping pipe is connected with a hearth; the upper side and the lower side of the coal dropping pipe are communicated with a coal supply pipe and a coal spreading air pipe respectively; the coal spreading air pipe is positioned between the coal supply pipe and the observation hole; and an air shielding plate is arranged in the coal dropping pipe between the observation hole and the coal supply pipe. The coal spreading air system effectively avoids coal blocking of a boiler front bin of a boiler, so that the stability of a boiler coal supply system is improved; the labor capacity of an operator is reduced; and stable operation of a subsequent system and the product quality are ensured.
Description
Technical field
The utility model belongs to the boiler plant technical field, is specifically related to a kind of coal spread wind system.
Background technology
At present, steam power plant adopts the coal supply in the boiler of coal spread wind system more, and coal enters coal spout by coal-feeding tube, enters burner hearth under the effect of coal spread wind.Situation for the handled easily personnel observe coal spout at any time can arrange peep hole at coal spout.In the coal spread wind system, the pressure of ature of coal and coal spread wind has a significant impact the stability of boiler operatiopn, when coal spread wind pressure is higher, can form eddy current at coal breakage point, and coal dust will be bonded in the sidewall of coal-feeding tube, cause coal-feeding tube to stop up; Under the lower situation of coal spread wind pressure, coal can be bonded on the coal spout, causes coal spout to block, and also might make raw coal enter the coal spread wind pipeline simultaneously.
During annual rainy season, because the moisture of steam coal is bigger, easily cause line clogging, if untimely mediation, the disconnected coal of boiler can take place, cause the operating load of boiler to reduce, can cause the generation of boiler shutdown accident when serious, bring hidden danger for continuous, the steady production of whole production chain, meanwhile also increased labor intensity of operating personnel.
The utility model content
The purpose of this utility model is to provide a kind of coal spread wind system.
For achieving the above object, the utility model adopts following technical scheme:
A kind of coal spread wind system comprises coal spout, and an end of coal spout is provided with peep hole on the one hand, and the other end connects burner hearth; The both sides up and down of coal spout are communicated with coal-feeding tube and coal spread wind pipe respectively on the other hand, and the coal spread wind pipe is provided with deep bead at peep hole to the coal spout between the coal-feeding tube between coal-feeding tube and peep hole.Deep bead plays guide functions, changes the direction of coal spread wind.
Described deep bead is relative with coal spread wind manage-style mouth, between the sidewall of deep bead and coal spout angle is arranged.
In the said system, an end of deep bead is positioned at the upper wall of coal spout, and the scope of the formed angle α of the upper wall of deep bead and coal spout is 90 ° of 0 ° of ﹤ α ﹤.
Preferably, the scope of described angle α is 70 ° of 10 ° of ﹤ α ﹤.
In the technique scheme, preferably, used deep bead is steel plate.
The utility model system is simple, utilize deep bead to change the direction of coal spread wind, form one along the downward air-flow of coal spout tube wall high speed, effectively solved the phenomenon of storehouse, boiler stokehold chute blockage, the stability of boiler coal feeding system is got a promotion, reduce operating personnel's the amount of labour, guaranteed the stable operation of follow-up system and the quality of product simultaneously.
Description of drawings
Fig. 1 is the utility model schematic diagram.
The specific embodiment
As shown in Figure 1, a kind of coal spread wind system comprises coal spout 1, and an end of coal spout 1 is provided with peep hole 3 on the one hand, and the other end connects burner hearth 2; The both sides up and down of coal spout 1 are communicated with coal-feeding tube 4 and coal spread wind pipe 5 respectively on the other hand, and coal spread wind pipe 5 is between coal-feeding tube 4 and peep hole 3, and peep hole 3 is provided with steel plate 6 to this section coal spout 1 of coal-feeding tube 4.Steel plate 6 is 20 ° with the angle α of coal spout 1 upper wall.
When system moves, 6 pairs of coal spread winds of steel plate carry out water conservancy diversion, formed one along the downward air-flow of coal spout 1 tube wall high speed, air-flow can be sent the raw coal that falls into burner hearth 2 fast, do not bond at tube wall, reduce the generation of stopping up, reduced operating personnel's the amount of labour, also guaranteed the stable operation of whole production system simultaneously.
The utility model is not limited only to the above-mentioned specific embodiment, and for example deep bead can be installed in the observation nose end of coal spout, with the sidewall of coal spout angle is arranged.
Claims (5)
1. a coal spread wind system comprises coal spout, and an end of coal spout is provided with peep hole on the one hand, and the other end connects burner hearth; The both sides up and down of coal spout are communicated with coal-feeding tube and coal spread wind pipe respectively on the other hand, it is characterized in that, the coal spread wind pipe is provided with deep bead at peep hole to the coal spout between the coal-feeding tube between coal-feeding tube and peep hole.
2. a kind of coal spread wind system according to claim 1 is characterized in that described deep bead is relative with coal spread wind manage-style mouth, between the sidewall of deep bead and coal spout angle is arranged.
3. as a kind of coal spread wind system as described in the claim 2, it is characterized in that an end of described deep bead is positioned at the upper wall of coal spout, the scope of the formed angle α of the upper wall of deep bead and coal spout is 90 ° of 0 ° of ﹤ α ﹤.
4. as a kind of coal spread wind system as described in the claim 3, it is characterized in that the scope of described angle α is 70 ° of 10 ° of ﹤ α ﹤.
5. a kind of coal spread wind system is characterized in that described deep bead is steel plate as described in arbitrary as claim 1-4.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054805 CN203068548U (en) | 2013-01-31 | 2013-01-31 | Coal spreading air system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320054805 CN203068548U (en) | 2013-01-31 | 2013-01-31 | Coal spreading air system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203068548U true CN203068548U (en) | 2013-07-17 |
Family
ID=48767327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320054805 Expired - Lifetime CN203068548U (en) | 2013-01-31 | 2013-01-31 | Coal spreading air system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203068548U (en) |
-
2013
- 2013-01-31 CN CN 201320054805 patent/CN203068548U/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130717 |
|
| CX01 | Expiry of patent term |