CN206669718U - A kind of burner and coal mill device for being punched circle combustion system station boiler - Google Patents
A kind of burner and coal mill device for being punched circle combustion system station boiler Download PDFInfo
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- CN206669718U CN206669718U CN201720357739.7U CN201720357739U CN206669718U CN 206669718 U CN206669718 U CN 206669718U CN 201720357739 U CN201720357739 U CN 201720357739U CN 206669718 U CN206669718 U CN 206669718U
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- burner
- coal pulverizer
- coal
- combustion
- coal mill
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Abstract
The utility model discloses a kind of burner and coal mill device of the tangential firing mode station boiler that liquidates, the device is that stove is wide by the corresponding direct-blowing type coal mill of the burner of burner hearth center 4, stove is wide to correspond to another direct-blowing type coal mill by 4, side wall direction burner, solution liquidates tangential firing mode boiler combustion stability and safety issue, the selection of the utility model burner model makes full use of the characteristics of liquidating tangential firing mode, the characteristics of due to tangential firing mode, the coal dust wind speed of four burners should be basically identical, it just can guarantee that stable tangential firing, obviously, 4 tube cells that same coal pulverizer comes out can most meet this requirement；In addition, if coal pulverizer trips, its corresponding 4 burner is stopped transport, it is also minimum to the combustion disturbance of this layer and other layers, another coal pulverizer is corresponded to for 4 opposed firing devices positioned at side wall, combustion disturbance is also limited in this layer of combustion conditions by coal pulverizer tripping operation, boiler integral combustion is influenceed minimum.
Description
Technical field
The burner and coal mill device of a kind of station boiler are the utility model is related to, belongs to boiler combustion and design is led
Domain.
Background technology
Existing patent liquidates tangential firing mode station boiler（The patent No.：ZL201220385876.9）Propose a kind of new
The combustion system of type, this combustion system combine the advantages of liquidating with two kinds of combustion systems of the circle of contact, have high combustion efficiency, combustion
Burn stability it is strong, and NOx discharge reduce the advantages of, but patent be not known provide burner how and coal mill device.
Because current large-sized station boiler is mostly direct-blowing type coal mill, the influence that coal pulverizer is stopped transport to boiler combustion is very big, liquidates
The each burner layer of tangential firing mode station boiler has 8 coal burners, by every coal pulverizer and 4 burner matchings pair
Should, permutation and combination among these is clearly very more, according to boiler combustion feature, pair of reasonable selection coal pulverizer and burner
Answer mode obviously extremely important.
Utility model content
The technical problems to be solved in the utility model is, defines one kind and liquidates tangential boiler burner and coal mill device,
To reach the purpose for improving boiler combustion stability and security.
The technical solution of the utility model is：A kind of burner for being punched circle combustion system station boiler and coal pulverizer dress
Put, including burner hearth, the first burner, the second burner, the first coal pulverizer, the second coal pulverizer, described burner hearth are internally provided with
First burner and the second burner；First coal pulverizer and the second coal pulverizer are arranged on the outside of burner hearth；The first described coal pulverizer
Connected with the first burner；The second described coal pulverizer and the connection of the second burner.
The first described burner has 4, and the first described burner is respectively uniformly distributed installed in burner hearth front-back wall
Central point is on the same plane in the center of circle.
The second described burner has 4, and the second described burner is symmetrically mounted on burner hearth front-back wall close to side wall
Position.
The first described coal pulverizer and the second coal pulverizer are arranged on the same side on the outside of burner hearth, the first described coal pulverizer and
Second coal pulverizer is direct-blowing type coal mill.
Using the technical solution of the utility model, it is punched the burner of circle combustion system station boiler and coal pulverizer dress
Put, equipment is paired into：It is wide by corresponding direct-firing first coal pulverizer of the first burner of burner hearth center 4, stove in stove
It is wide to correspond to another direct-firing second coal pulverizer by the second burner of 4, side wall direction.
The selection of the utility model burner and coal pulverizer matching makes full use of the characteristics of liquidating tangential firing mode.Due to
The characteristics of tangential firing mode, the coal dust wind speed of four burners should be basically identical, just can guarantee that stable tangential firing, shows
So, 4 tube cells that same coal pulverizer comes out can most meet this requirement；If in addition, coal pulverizer trip, its corresponding 4
Burner is stopped transport, also minimum to the combustion disturbance of this layer and other layers.It is another for being corresponded to positioned at 4 opposed firing devices of side wall
Combustion disturbance is also limited in this layer of combustion conditions by platform coal pulverizer, coal pulverizer tripping operation, boiler integral combustion is influenceed minimum.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
It is identified as in figure：1st, burner hearth, the 2, first burner, the 3, second burner, the 4, first coal pulverizer, the 5, second coal-grinding
Machine.
Embodiment
Describe preferred embodiment of the present utility model in detail below in conjunction with the accompanying drawings.
The utility model embodiment：A kind of as shown in figure 1, burner and coal pulverizer for being punched circle combustion system station boiler
Device, including burner hearth 1, the first burner 2, the second burner 3, the first coal pulverizer 4, the second coal pulverizer 5, the inside of burner hearth 1 are set
There are the first burner 2 and the second burner 3；First coal pulverizer 4 and the second coal pulverizer 5 are arranged on the outside of burner hearth 1；Described first
The burner 2 of coal pulverizer 4 and first connects；Described the second coal pulverizer 5 and the second burner 3 connects.
The first described burner 2 has 4, and the first described burner 2 is respectively uniformly distributed before and after with burner hearth 1
Wall central point is on the same plane in the center of circle.
The second described burner 3 has 4, and the second described burner 3 is symmetrically mounted on the front-back wall of burner hearth 1 close to side
Wall displacement.
The first described coal pulverizer 4 and the second coal pulverizer 5 are arranged on the same side in the outside of burner hearth 1, the first coal pulverizer 4 and the
Two coal pulverizers 5 are direct-blowing type coal mill.
During experiment, the choosing of the burner of the tangential firing mode station boiler that liquidates and coal mill device are utilized in that stove is wide to lean on stove
Thorax（1）Corresponding direct-firing first coal pulverizer of the first burner (2) of center 4（4）, stove is wide by side wall direction 4 the
Corresponding another direct-firing second coal pulverizer of two burners (3)（5）.
Specific method is that opposed firing is located at burner hearth（1）Both sides, powder is supplied by a direct-blowing type coal mill, tangential firing is located at
Burner hearth（1）Center, powder is supplied by another coal pulverizer.
Claims (4)
1. a kind of burner and coal mill device for being punched circle combustion system station boiler, including burner hearth（1）, the first burner
（2）, the second burner（3）, the first coal pulverizer（4）, the second coal pulverizer（5）, it is characterised in that：Described burner hearth（1）Inside is set
It is equipped with the first burner（2）With the second burner（3）；First coal pulverizer（4）With the second coal pulverizer（5）It is arranged on burner hearth（1）Outside
Side；The first described coal pulverizer（4）With the first burner（2）Connection；The second described coal pulverizer（5）With the second burner（3）
Connection.
2. a kind of burner and coal mill device for being punched circle combustion system station boiler according to claim 1, it is special
Sign is：The first described burner（2）There are 4, the first described burner（2）It is respectively uniformly distributed installed in burner hearth
（1）Front-back wall central point is on the same plane in the center of circle.
3. a kind of burner and coal mill device for being punched circle combustion system station boiler according to claim 1, it is special
Sign is：The second described burner（3）There are 4, the second described burner（3）It is symmetrically mounted on burner hearth（1）On front-back wall
Close to side wall position.
4. a kind of burner and coal mill device for being punched circle combustion system station boiler according to claim 1, it is special
Sign is：The first described coal pulverizer（4）With the second coal pulverizer（5）Installed in burner hearth（1）The same side in outside, described first
Coal pulverizer（4）With the second coal pulverizer（5）It is direct-blowing type coal mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720357739.7U CN206669718U (en) | 2017-04-07 | 2017-04-07 | A kind of burner and coal mill device for being punched circle combustion system station boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720357739.7U CN206669718U (en) | 2017-04-07 | 2017-04-07 | A kind of burner and coal mill device for being punched circle combustion system station boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206669718U true CN206669718U (en) | 2017-11-24 |
Family
ID=60366947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720357739.7U Active CN206669718U (en) | 2017-04-07 | 2017-04-07 | A kind of burner and coal mill device for being punched circle combustion system station boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206669718U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871112A (en) * | 2017-04-07 | 2017-06-20 | 贵州电网有限责任公司电力科学研究院 | A kind of burner and coal pulverizer matching process for being punched circle combustion system station boiler |
| CN112393228A (en) * | 2020-11-30 | 2021-02-23 | 华北电力科学研究院有限责任公司 | RB (reverse bearing) jumping and grinding control device and method for octagonal tangential coal-fired boiler |
-
2017
- 2017-04-07 CN CN201720357739.7U patent/CN206669718U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106871112A (en) * | 2017-04-07 | 2017-06-20 | 贵州电网有限责任公司电力科学研究院 | A kind of burner and coal pulverizer matching process for being punched circle combustion system station boiler |
| CN112393228A (en) * | 2020-11-30 | 2021-02-23 | 华北电力科学研究院有限责任公司 | RB (reverse bearing) jumping and grinding control device and method for octagonal tangential coal-fired boiler |
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