CN213222476U - Split type grinding bowl structure of coal mill - Google Patents
Split type grinding bowl structure of coal mill Download PDFInfo
- Publication number
- CN213222476U CN213222476U CN202020834465.8U CN202020834465U CN213222476U CN 213222476 U CN213222476 U CN 213222476U CN 202020834465 U CN202020834465 U CN 202020834465U CN 213222476 U CN213222476 U CN 213222476U
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- China
- Prior art keywords
- guide vane
- impeller
- coal
- grinding bowl
- ring plate
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Abstract
The utility model discloses a split type grinding bowl structure of coal pulverizer, including the coal pulverizer bowl, the coal pulverizer bowl outer fringe is provided with impeller device, and impeller device includes impeller inner ring board, impeller outer ring board and guide vane, is equipped with guide vane between impeller inner ring board and the impeller outer ring board, and guide vane is equipped with the radian, and the upper surface of guide vane one side is equipped with the recess, and the recess transversely is located guide vane one side in proper order, and the recess is inside convex recess. The utility model discloses simple structure can effectively strengthen guide vane's wind speed, reduces the emission of stone coal, avoids causing the waste of resource to and reduce personnel's work load, improves work efficiency.
Description
Technical Field
The utility model relates to an active electricity generation field specifically is a split type grinding bowl structure of coal pulverizer.
Background
In the process of grinding coal, stones, metal blocks, a small amount of coal particles and the like entrained in raw coal are thrown into the air ring chamber at the same time, and the stones, the metal blocks, the small amount of coal particles and the like are collectively called pebble coal. The pebble coal is scraped into the slag box by a scraper rotating at the same speed as the active grinding part. When the pebble coal in the slag box is cleaned, the pebble coal is found to contain a plurality of coal particles. The coal particles are not utilized, which causes waste of resources, so that certain improvement on the prior coal mill is needed to reduce the occurrence of the phenomenon.
SUMMERY OF THE UTILITY MODEL
In order to solve the problem, the utility model discloses a split type grinding bowl structure of coal pulverizer.
The technical scheme of the utility model is that: split type grinding bowl structure of coal pulverizer, including the coal grinding bowl, the coal grinding bowl outer fringe is provided with impeller device, impeller device includes impeller inner race board, impeller outer race board and guide vane, be equipped with guide vane between impeller inner race board and the impeller outer race board, guide vane is equipped with the radian, the upper surface of guide vane one side is equipped with the recess, the recess transversely is located guide vane one side in proper order, the recess is inside convex recess.
Furthermore, the depth of the groove is one fourth to one third of the thickness of the guide vane.
Furthermore, a reinforced connecting lug is arranged between the coal grinding bowl and the impeller inner ring plate.
The utility model discloses an useful part: the utility model discloses simple structure can effectively strengthen guide vane's wind speed, reduces the emission of stone coal, avoids causing the waste of resource to and reduce personnel's work load, improves work efficiency.
Drawings
Fig. 1 is a schematic structural view of the present invention;
wherein: 1. the coal grinding device comprises a coal grinding bowl 2, an impeller inner ring plate 3, an impeller outer ring plate 4, a guide vane 5 and a groove.
Detailed Description
In order to deepen the understanding of the present invention, the following detailed description is given with reference to the accompanying drawings, which are only used for explaining the present invention and do not constitute a limitation to the protection scope of the present invention.
As shown in fig. 1, the split type coal grinding bowl structure of the coal grinding machine comprises a coal grinding bowl 1, an impeller device is arranged on the outer edge of the coal grinding bowl 1 and comprises an impeller inner ring plate 2, an impeller outer ring plate 3 and guide vanes 4, the impeller inner ring plate 2 is located on the outer side of the coal grinding bowl, a reinforcing connecting lug is further arranged between the coal grinding bowl 1 and the impeller inner ring plate 2, the guide vanes 4 are arranged between the impeller inner ring plate 2 and the impeller outer ring plate 3, each guide vane 4 is provided with a radian, a groove 5 is formed in the upper surface of one side of each guide vane and is transversely and sequentially located on one side of each guide vane, each groove 5 is an inward arc-shaped groove, and the depth of each groove 5 is one quarter to one third of the thickness of each guide vane.
The guide vane is provided with a groove, and when wind flows through the groove, the wind flows through the groove on the guide vane to form a curved backflow, so that the wind speed is increased, and the discharge amount of pebble coal is reduced.
Claims (3)
1. Split type grinding bowl structure of coal pulverizer, including the grinding bowl, its characterized in that: the coal grinding bowl is characterized in that an impeller device is arranged on the outer edge of the coal grinding bowl and comprises an impeller inner ring plate, an impeller outer ring plate and guide vanes, the impeller inner ring plate is located on the outer side of the coal grinding bowl, the guide vanes are arranged between the impeller inner ring plate and the impeller outer ring plate and are provided with radians, grooves are formed in the upper surface of one side of each guide vane and transversely and sequentially located on one side of each guide vane, and the grooves are inward arc-shaped grooves.
2. The split grinding bowl structure of the coal mill according to claim 1, characterized in that: the depth of the groove is one fourth to one third of the thickness of the guide vane.
3. The split grinding bowl structure of the coal mill according to claim 1, characterized in that: and a reinforced connecting lug is also arranged between the coal grinding bowl and the impeller inner ring plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020834465.8U CN213222476U (en) | 2020-05-19 | 2020-05-19 | Split type grinding bowl structure of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020834465.8U CN213222476U (en) | 2020-05-19 | 2020-05-19 | Split type grinding bowl structure of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213222476U true CN213222476U (en) | 2021-05-18 |
Family
ID=75867594
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020834465.8U Active CN213222476U (en) | 2020-05-19 | 2020-05-19 | Split type grinding bowl structure of coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213222476U (en) |
-
2020
- 2020-05-19 CN CN202020834465.8U patent/CN213222476U/en active Active
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| GR01 | Patent grant |