CN204247299U - The wheeled Roller of Coal Grinder roller shell of a kind of middling speed - Google Patents
The wheeled Roller of Coal Grinder roller shell of a kind of middling speed Download PDFInfo
- Publication number
- CN204247299U CN204247299U CN201420257892.9U CN201420257892U CN204247299U CN 204247299 U CN204247299 U CN 204247299U CN 201420257892 U CN201420257892 U CN 201420257892U CN 204247299 U CN204247299 U CN 204247299U
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- Prior art keywords
- roller
- roller shell
- grinding
- shell
- wheeled
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Abstract
The wheeled Roller of Coal Grinder roller shell of a kind of middling speed, comprises the pilot hole with roller shell concentric, axially through roller shell.Axial cross section is the roller shell body of U-shaped, and the improvement done is the radius of curvature strengthening roller shell grinding part, increases the thickness at allowance increasing this place of grinding roller of material at the roller shell inner surface of corresponding grinding part.The beneficial effects of the utility model are: because radius of curvature is comparatively large, and molded line is relatively milder, and the raw coal quality dropping on region of milling between grinding roller roller shell and millstone sheet increases relatively, and what be more conducive to that equipment runs is stable.Simultaneously, to mill the thickness at position owing to adding grinding roller roller shell, enhance the intensity of roller shell fray, the service life of grinding roller roller shell extends 1.2 times, shorten equipment overhaul cycle, be conducive to reducing the maintenance cost of repair time of user, time between overhauls(TBO) and equipment.
Description
Technical field
The utility model belongs to powder process disintegrating apparatus technical field, is specifically related to the grinding roller roller shell of wheeled coal pulverizer.
Background technology
The wheeled coal pulverizer of middling speed is mainly used in thermal power plant, chemical plant and iron-smelter, for raw coal being milled into the coal dust of certain fineness, is delivered to boiler furnace or Pulverized Coal Bin.
Wheeled coal pulverizer forms by the grinding roller that rolls on mill the grinding pressure formed between grinding roller and millstone sheet and completes pulverizing to coal and obtained coal dust.Grinding roller roller shell participates in milling of raw coal directly, is a kind of easy-abrasion part with certain degree of hardness requirement and abrasive nature, needs to change when grinding roller roller shell may wear to a certain degree.The grinding roller roller shell of the wheeled coal pulverizer of middling speed in the past, due to less with mill watt relative grinding operating position molded line radius of curvature, curve is sharper, and the raw coal of milling between parts region of milling is less, raw coal amount interior between in unit interval is relatively less, affects exerting oneself of coal pulverizer; Meanwhile, because the part thickness easy to wear of grinding roller roller shell is thinner, its service life is relatively short, and equipment overhaul cycle is short, adds the expense of user to plant maintenance.
Summary of the invention
The purpose of this utility model is to provide the wheeled Roller of Coal Grinder roller shell of a kind of middling speed, overcomes existing coal pulverizer above shortcomings.
Grinding roller roller shell of the present utility model comprises the pilot hole with roller shell concentric, axially through roll sleeve, and axial cross section is the roller shell body of U-shaped.The improvement done is the radius of curvature strengthening roller shell grinding part, increases the thickness at allowance increasing this place of grinding roller of material at the roller shell inner surface of corresponding grinding part.
The beneficial effects of the utility model are: because radius of curvature is comparatively large, and molded line is relatively milder, and the raw coal quality dropping on region of milling between grinding roller roller shell and millstone sheet increases relatively, and what be more conducive to that equipment runs is stable.Simultaneously, to mill the thickness at position owing to adding grinding roller roller shell, enhance the intensity of roller shell fray, the service life of grinding roller roller shell extends 1.2 times, shorten equipment overhaul cycle, be conducive to reducing the maintenance cost of repair time of user, time between overhauls(TBO) and equipment.
Accompanying drawing explanation.
Fig. 1 is the utility model grinding roller roller shell figure;
Fig. 2 is the new old-fashioned grinding roller roller shell molded line comparison diagram of this practicality;
Detailed description of the invention
Consult Fig. 1, Fig. 2, the utility model comprises the pilot hole 1 with roller shell concentric, axially through roll sleeve, and axial cross section is the roller shell body 2 of U-shaped.Relatively existing roller shell (old-fashioned MPS225 grinding roller roller shell), the radius of curvature of roller shell grinding part is strengthened at the region 2-1 that mills (21 ° and two side positions) place, the allowance of material is increased at the roller shell inner surface 2-2 place of corresponding grinding part, make the thickness of roller shell at place increase 35mm at existing roller shell, be increased to 135mm by the 100mm of existing roller shell.
Claims (1)
1. the wheeled Roller of Coal Grinder roller shell of middling speed, comprise the pilot hole with roller shell concentric, axially through roll sleeve, axial cross section is the roller shell body of U-shaped, it is characterized in that: the radius of curvature strengthening roller shell grinding part, increase the thickness at allowance increasing this place of grinding roller of material at the roller shell inner surface of corresponding grinding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420257892.9U CN204247299U (en) | 2014-05-20 | 2014-05-20 | The wheeled Roller of Coal Grinder roller shell of a kind of middling speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420257892.9U CN204247299U (en) | 2014-05-20 | 2014-05-20 | The wheeled Roller of Coal Grinder roller shell of a kind of middling speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204247299U true CN204247299U (en) | 2015-04-08 |
Family
ID=52951655
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420257892.9U Expired - Fee Related CN204247299U (en) | 2014-05-20 | 2014-05-20 | The wheeled Roller of Coal Grinder roller shell of a kind of middling speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204247299U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106890705A (en) * | 2017-04-18 | 2017-06-27 | 长春发电设备总厂 | A kind of medium-speed pulverizer |
| CN110124791A (en) * | 2019-06-25 | 2019-08-16 | 国电龙源节能技术有限公司 | Roller of Coal Grinder |
-
2014
- 2014-05-20 CN CN201420257892.9U patent/CN204247299U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106890705A (en) * | 2017-04-18 | 2017-06-27 | 长春发电设备总厂 | A kind of medium-speed pulverizer |
| CN110124791A (en) * | 2019-06-25 | 2019-08-16 | 国电龙源节能技术有限公司 | Roller of Coal Grinder |
| CN110124791B (en) * | 2019-06-25 | 2023-10-13 | 国能龙源蓝天节能技术有限公司 | Coal mill grinding roller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: No. 3388 century street, Changchun Economic Development Zone, Jilin Province, Jilin Patentee after: POWERCHINA CHANGCHUN GENERATING EQUIPMENT Group Ltd. Address before: Two district Huairenlu 130031 Jilin province Changchun No. 1 Patentee before: Changchun Power Generation Equipment Plant |
|
| 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: 20150408 |