CN201002030Y - Thermo-power generating plant middle-speed grinding dynamic air ring - Google Patents
Thermo-power generating plant middle-speed grinding dynamic air ring Download PDFInfo
- Publication number
- CN201002030Y CN201002030Y CNU2007200038930U CN200720003893U CN201002030Y CN 201002030 Y CN201002030 Y CN 201002030Y CN U2007200038930 U CNU2007200038930 U CN U2007200038930U CN 200720003893 U CN200720003893 U CN 200720003893U CN 201002030 Y CN201002030 Y CN 201002030Y
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- China
- Prior art keywords
- medium
- ring
- power plant
- thermal power
- thermo
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- 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 - Fee Related
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Abstract
The utility model relates to the medium-speed grind moving wind ring for a firepower generating station. The wind ring comprises 42 leaves (2) and a circular ring (2), with a 45-degree leave axial angle. The moving wind ring improves the flow speed, reduces the amount of one-time wind and effectively changes the rotating direction of the air flow. The utility model has the advantages of the entire combustion of the coal powder, reducing the strength of loading.
Description
Affiliated field:
Medium-speed pulverizer moving vane in a kind of thermal power plant of the utility model belongs to thermal power plant pulverized coal preparation system medium-speed pulverizer, particularly moving vane.
Background technology:
The coal pulverizer situation current, that use in the thermal power plant: loading force is 27.8t, the 59t/h that produces coal, pressure reduction 5.2～5.3Kpa, inlet pressure 8.92Kpa, the about 28Kg/h of the quantity of slag, if a blast is lower than 9Kpa, the quantity of slag increases severely; It is 36 blades that coal pulverizer uses moving vane, and axially angle is 40 ° of structures.From top data declaration: existing middling speed grinding machine loading force is excessive, and a blast height is unfavorable for burning adjustment, and coal-fired electrisity consumption is big.
Summary of the invention:
Medium-speed pulverizer moving vane goal of the invention in a kind of thermal power plant of the utility model is: manufacture and design a kind of moving vane that changes air quantity, wind speed, can reduce loading force.
Medium-speed pulverizer moving vane in a kind of thermal power plant of the utility model is achieved in that and increases blade, increases to 42 blades by original 36, and thickness is certain, and the blade face is shaped as rectangle; Strengthen axial angle, change 45 ° into by original 40 °; Blade (1) and ring (2) are made by same blank.
The operation principle of the moving vane of a kind of thermal power plant of the utility model medium-speed pulverizer: change blade quantity, increase axial angle and cause intake to be obstructed, can reduce vane circulation dynamic pressure, the gas powder flow rate is more even, and the air quantity formed swirling eddy that diminishes is more conducive to combustion-supporting.
The beneficial effect of the moving vane of a kind of thermal power plant of the utility model medium-speed pulverizer is that vane has improved flow velocity, reduces primary air flow, effectively changes the air-flow direction of rotation, helps coal dust more and fully burns, and loading force is reduced.
Description of drawings:
Accompanying drawing is the moving vane cutaway view of a kind of thermal power plant of the utility model medium-speed pulverizer.
Among the figure; Blade (1), ring (2).
The specific embodiment:
Medium-speed pulverizer moving vane in a kind of thermal power plant is made up of 42 blades (1) and ring (2), and 42 blades (1) five equilibrium on axial circumferential end surfaces is uniform, and blade (1) thickness is certain, and the blade face is shaped as rectangle; Sharf is 45 ° to angle; Blade (1) and ring (2) are made by same blank.
Claims (3)
1, the moving vane of a kind of thermal power plant medium-speed pulverizer, it is characterized in that: be made up of 42 blades (1) and ring (2), 42 blades (1) five equilibrium on axial circumferential end surfaces is uniform, and axially angle is 45 °.
2, according to the moving vane of the described a kind of thermal power plant of claim 1 medium-speed pulverizer, it is characterized in that: blade (1) thickness is certain, and the blade face is shaped as rectangle.
3, according to the moving vane of the described a kind of thermal power plant of claim 1 medium-speed pulverizer, it is characterized in that: blade (1) and ring (2) are made by same blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200038930U CN201002030Y (en) | 2007-02-03 | 2007-02-03 | Thermo-power generating plant middle-speed grinding dynamic air ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200038930U CN201002030Y (en) | 2007-02-03 | 2007-02-03 | Thermo-power generating plant middle-speed grinding dynamic air ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201002030Y true CN201002030Y (en) | 2008-01-09 |
Family
ID=39037573
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200038930U Expired - Fee Related CN201002030Y (en) | 2007-02-03 | 2007-02-03 | Thermo-power generating plant middle-speed grinding dynamic air ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201002030Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430453A (en) * | 2010-09-29 | 2012-05-02 | 莱歇研磨机械制造(上海)有限公司 | Polygonal adjustable air ring for roll mill |
-
2007
- 2007-02-03 CN CNU2007200038930U patent/CN201002030Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102430453A (en) * | 2010-09-29 | 2012-05-02 | 莱歇研磨机械制造(上海)有限公司 | Polygonal adjustable air ring for roll mill |
| CN102430453B (en) * | 2010-09-29 | 2014-03-26 | 莱歇研磨机械制造(上海)有限公司 | Polygonal adjustable air ring for roll mill |
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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: 20080109 Termination date: 20110203 |