CN202410743U - Grinder roll trunnion of grinder roll device of coal mill - Google Patents
Grinder roll trunnion of grinder roll device of coal mill Download PDFInfo
- Publication number
- CN202410743U CN202410743U CN 201120557034 CN201120557034U CN202410743U CN 202410743 U CN202410743 U CN 202410743U CN 201120557034 CN201120557034 CN 201120557034 CN 201120557034 U CN201120557034 U CN 201120557034U CN 202410743 U CN202410743 U CN 202410743U
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- Prior art keywords
- flange
- trunnion
- grinder roll
- coal
- boss
- Prior art date
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Abstract
The utility model discloses a grinder roll trunnion of a grinder roll device of a coal mill. The grinder roll trunnion comprises a flange, a boss is connected to an end surface of the flange, a trunnion is connected to the other end surface of the flange, and the rotation center of the flange, the rotation center of the boss and the rotation center of the trunnion are positioned on the same straight line. The flange, the boss and the trunnion are integrally formed. The grinder roll trunnion can bring convenience for processing and mounting, manufacturing cost is greatly reduced, the variety of blanks is reduced, material management is facilitated, and overhauling time of the coal mill can be greatly shortened owing to the grinder roll trunnion.
Description
Technical field
The utility model relates to a kind of Burnisher apparatus of coal pulverizer, is specifically related to a kind of grinding roller gudgeon of coal pulverizer Burnisher apparatus.
Background technology
The major function of coal pulverizer is that diameter is become the coal dust about 0.075mm smaller or equal to the improved grinding of 38mm, the boiler of feeding burning.
The technological process of coal pulverizer is: be used for dry heat primary air with the interior coal dust of conveying coal pulverizer and get into from the side body air inlet that grinds lower part of bowl; Be upward through the impeller unit that grinds bowl edge around mill bowl hub, dynamic impeller unit makes air-flow be evenly distributed on the mill bowl edge and improves the speed of air-flow; Meanwhile, coal dust and air-flow mix, and air-flow is carrying coal dust and impacting the fixedly deflecting plate that is fixed on the separation body; Little and the dry coal dust of particle still remains in the air-flow and is carried along fixing deflecting plate and rises to separator; The bulky grain coal dust then falls after rise to the mill bowl is further milled, and the fixedly deflecting plate that separates the body bottom makes coal dust carry out primary separation in the zone of milling; Coal dust and air-flow continue to rise; Get into the secondary separated region through separating body---deflector baffle door or dynamic blade rotor; Separating the top cover place, air-flow and coal stream interact, and separate blade can stop larger particles to pass through; Make larger particles return the mill bowl and further mill, the coal dust that fineness is qualified then can be discharged coal pulverizer through separated region.
Coal pulverizer is divided into the coal pulverizer and the coal pulverizer that drives the attitude separator of band static separation device; The coal pulverizer of band static separation device is folded to gate flap sheet aperture through adjustment and regulates pulverized coal system; The coal pulverizer that drives the attitude separator then can change the rotating speed of rotor through frequency converter and variable-frequency motor, adjusts the fineness of coal dust through the rotating speed that changes rotor.
Drive the coal pulverizer of attitude separator because interior circulating load is littler than static separation device, so can improve pulverizer capacity, this realizes owing to separative efficiency improves.Its principle is through avoiding granularity less than the unnecessary grinding times again of 200 purpose fine particles, making qualified coal dust just can discharge coal pulverizer quickly.That is to say, under identical ature of coal and fineness requirement, can improve pulverizer capacity, perhaps under the identical ature of coal and the requirement of exerting oneself, can improve fineness of pulverized coal.Therefore, to different fineness of pulverized coal requirements, can select the coal pulverizer of band static separation device or dynamic separator targetedly respectively for use.
Working speed is that vibration is bigger when starting, the product uniformity is relatively poor, system complex, equipment overhaul cycle is long and recondition expense is big, the part life-span problems such as weak point of milling for the medium-speed pulverizer ubiquity of 50～300r/min.
The grinding roller gudgeon of existing coal pulverizer Burnisher apparatus is as shown in Figure 1, comprises flange 1, axle 2, eccentric shaft 3, an end adpting flange 1 of axle 2, and the other end of axle 2 connects eccentric shaft 3; Axle 2 and the centre of gyration of flange 1 on same straight line, the centre of gyration of the centre of gyration off-axis 2 of eccentric shaft 3; Flange 1, axle 2 and eccentric shaft 3 are formed in one.
The grinding roller gudgeon of this structure because blank belongs to forge piece and has eccentric structure, blank casting, forging and pressing are had relatively high expectations, and premium rate is very high; The processing of grinding roller gudgeon, intensity guarantee and install also very inconvenience.
The utility model content
The utility model technical problem to be solved provides a kind of grinding roller gudgeon of coal pulverizer Burnisher apparatus, it can make Burnisher apparatus installation, the maintenance convenient.
For solving the problems of the technologies described above, the technical solution of the grinding roller gudgeon of the utility model coal pulverizer Burnisher apparatus is:
Comprise flange, an end face of flange connects boss, and the other end of flange connects gudgeon; The centre of gyration of flange and boss, gudgeon is on same straight line.
Said flange, boss, gudgeon are formed in one.
The technique effect that the utility model can reach is:
The utility model can make processing, easier for installation, and manufacturing cost significantly reduces, and the blank kind reduces, and helps handling of goods and materials.
The utility model can shorten the maintenance downtime of coal pulverizer greatly.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the utility model is done further detailed explanation:
Fig. 1 is the sketch map of the grinding roller gudgeon of prior art coal pulverizer Burnisher apparatus;
Fig. 2 is the sketch map of the grinding roller gudgeon of the utility model coal pulverizer Burnisher apparatus.
Description of reference numerals among the figure:
1 is flange, and 2 is axle,
3 is eccentric shaft, and 21 is boss,
31 is gudgeon.
The specific embodiment
As shown in Figure 2, the grinding roller gudgeon of the utility model coal pulverizer Burnisher apparatus comprises flange 1, and an end face of flange 1 connects boss 21, and the other end of flange 1 connects gudgeon 31; The centre of gyration of flange 1 and boss 21, gudgeon 31 is on same straight line; Flange 1, boss 21, gudgeon 31 are formed in one.
The utility model is applicable to grinding, drying and the sorting etc. of heat power plant boiler or materials such as other industry anthracite, bituminous coal, ub-bituminous coal, brown coal and lime stone.
Claims (2)
1. the grinding roller gudgeon of a coal pulverizer Burnisher apparatus is characterized in that: comprise flange, the end face connection boss of flange, the other end connection gudgeon of flange; The centre of gyration of flange and boss, gudgeon is on same straight line.
2. the grinding roller gudgeon of coal pulverizer Burnisher apparatus according to claim 1 is characterized in that: said flange, boss, gudgeon are formed in one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120557034 CN202410743U (en) | 2011-12-27 | 2011-12-27 | Grinder roll trunnion of grinder roll device of coal mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120557034 CN202410743U (en) | 2011-12-27 | 2011-12-27 | Grinder roll trunnion of grinder roll device of coal mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202410743U true CN202410743U (en) | 2012-09-05 |
Family
ID=46735541
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120557034 Expired - Lifetime CN202410743U (en) | 2011-12-27 | 2011-12-27 | Grinder roll trunnion of grinder roll device of coal mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202410743U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622137A (en) * | 2019-02-19 | 2019-04-16 | 焦作市双力机械有限公司 | A kind of bi-fluted roller type super power crusher discaling roll structure |
-
2011
- 2011-12-27 CN CN 201120557034 patent/CN202410743U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109622137A (en) * | 2019-02-19 | 2019-04-16 | 焦作市双力机械有限公司 | A kind of bi-fluted roller type super power crusher discaling roll structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20161213 Address after: 200245 Shanghai City, Minhang District, No. 230, building 1800 Patentee after: Shanghai electric heavy milling special equipment Co. Ltd. Patentee after: Shanghai Heavy-Machine Factory Co., Ltd. Address before: 200245 Jiangchuan Road, Shanghai, No. 1800, No. Patentee before: Shanghai Heavy-Machine Factory Co., Ltd. |
|
| CX01 | Expiry of patent term |
Granted publication date: 20120905 |
|
| CX01 | Expiry of patent term |