CN106890705A - A kind of medium-speed pulverizer - Google Patents
A kind of medium-speed pulverizer Download PDFInfo
- Publication number
- CN106890705A CN106890705A CN201710253788.0A CN201710253788A CN106890705A CN 106890705 A CN106890705 A CN 106890705A CN 201710253788 A CN201710253788 A CN 201710253788A CN 106890705 A CN106890705 A CN 106890705A
- Authority
- CN
- China
- Prior art keywords
- mill
- roller
- roll sleeve
- grinding
- grinding roller
- Prior art date
- 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.)
- Granted
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/004—Shape or construction of rollers or balls
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C15/00—Disintegrating by milling members in the form of rollers or balls co-operating with rings or discs
- B02C15/007—Mills with rollers pressed against a rotary horizontal disc
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B02—CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
- B02C—CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
- B02C23/00—Auxiliary methods or auxiliary devices or accessories specially adapted for crushing or disintegrating not provided for in preceding groups or not specially adapted to apparatus covered by a single preceding group
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- Engineering & Computer Science (AREA)
- Food Science & Technology (AREA)
- Crushing And Grinding (AREA)
Abstract
A kind of medium-speed pulverizer, including the assembling of motor, reductor, lower frame, middle support body, separator, mill, grinding roller assembling, pressue device, drag link mechanism, hydraulic system, slag-draining device, lubricating system, basis, improvements introduced is：The shape of part grinding roller roller of milling set is centripetal circular arc bowl-type（Molded line of milling still is circular arc）, the radius of curvature for grinding roll sleeve central diameter takes 0.5 times of grinding machine pitch diameter to infinitely great multiple, and the positive effect of the present invention is：By changing the shape that its original roller covers, roller set section is changed to centripetal circular arc kidney-shaped, increases roller set and the region of milling of millstone sheet by wheel the form of the foetus, the crushing efficiency of raw coal is improve in the unit interval, so as to improve exerting oneself for coal pulverizer；The grinding roller of arc-shaped is rotated along with the mill rail central diameter of mill on millstone sheet, reduces the linear velocity difference of mill roll sleeve and millstone sheet, reduces the abrasion that roller covers outside left.
Description
Technical field
The invention belongs to powder disintegrating apparatus technical field processed, and in particular to coal-fired station's coal-grinding equipment.
Background technology
The more medium-speed pulverizer for using of the coal-burning utilities such as thermal power plant, including main motor, reductor, lower frame, middle frame
Body, separator, mill assembling, grinding roller assembling, pressue device, drag link mechanism, hydraulic system, slag-draining device, lubricating system, basis
Deng part.When equipment is run, main motor drives the mill being fixed on above reductor to rotate by shaft coupling, and millstone sheet is fixed
On mill, in the presence of frictional force, mill drives grinding roller rotation.Fallen the raw coal on millstone sheet by separator coal spout
Milled by grinding roller, be ground to the qualified coal dust of certain fineness and be sent outside mill by separator flour extraction pipe by a hot blast.
Mill part grinding roller and mill plays a part of milling and crushing to raw coal, fineness of pulverized coal is reached qualified requirement.
In wheel the form of the foetus, three grinding rollers are evenly arranged in mill in roller set section in the grinding roller assembling of the wheeled coal pulverizer of conventional middling speed
On disk watt, grinding roller falls in the mill rail central diameter of millstone sheet, raw coal is formed between grinding roller and millstone sheet and is milled region.Coal pulverizer work
When making, the raw coal fallen from coal spout is thrown on millstone sheet under the rotation of mill, and grinding roller falls on raw coal, in hydraulic system
Raw coal is milled under the grinding forces effect of applying.By milling, modular construction is influenceed, and the raw coal amount in region of milling is relative
It is less, have impact on exerting oneself for coal pulverizer；Simultaneously as roller set is outside larger with the linear differential of millstone sheet, grinding roller roller is increased
Abrasion outside set, reduces the service life of part of milling.
The content of the invention
It is an object of the invention to provide a kind of medium-speed pulverizer, by changing the shape of mill roll sleeve, existing mill is overcome
Coal machine above shortcomings.
The present invention includes：Motor, reductor, lower frame, middle support body, separator, mill assembling, grinding roller assembling, pressurization
Device, drag link mechanism, hydraulic system, slag-draining device, lubricating system, basis, the improvement done is：The grinding roller roller milled in assembling
The shape of set is tire-like, centripetal circular arc bowl-type（Molded line of milling still is circular arc）, grind roll sleeve central diameter（In by grinding roll sleeve
Property layer and mill roll sleeve molded line midpoint radius）Radius of curvature span be coal pulverizer pitch diameter（Coal pulverizer grinding section
The diameter of circular arc where part grinding roller and millstone sheet contact point）0.5 times to infinitely great multiple, mill molded line and the mill of roller set
Watt（It is arc bowl formula structure）Molded line of milling match, grinding roller is rolled on millstone sheet along the mill rail central diameter of mill.
In the present invention, the mill roll sleeve preferred span of central diameter radius of curvature be equal to the 2000 of coal pulverizer pitch diameter to
10000 times.
In the present invention, mill roll sleeve central diameter radius of curvature optimum valuing range is equal to the 3000 of coal pulverizer pitch diameter
Times.
The good effect of invention is：New grinding roller assembling uses the roller set of centripetal circular arc kidney-shaped（Roller set mills molded line to justify
Arc）, the molded line of millstone sheet and mill roll sleeve match, and reduces the linear velocity difference of mill roll sleeve and millstone sheet, reduces
Roller covers the abrasion of outside left, improves the service life of easy-abrasion part.When coal pulverizer works, fall in grinding roller and millstone sheet
Between mill the area increase of effectively milling in region, make to fall the raw coal quality phase in region of being milled between mill roll sleeve and millstone sheet
To increasing, the crushing efficiency of raw coal is improved in the unit interval, so as to improve exerting oneself for coal pulverizer, be more beneficial for the steady of equipment operation
It is fixed.
Brief description of the drawings
Fig. 1 is medium-speed pulverizer overall structure figure of the present invention.
Fig. 2 is that grinding roller covers shape and grinding roller assembling assembles installation graph with mill.
Fig. 3 is the radius of curvature and grinding machine pitch diameter graph of a relation for grinding roll sleeve central diameter.
Specific embodiment
Embodiment 1
Refering to Fig. 1, Fig. 2, Fig. 3, medium-speed pulverizer of the present invention include main motor 1, reductor 2, lower frame 3, middle support body 4, point
From device 5, mill assembling 6, grinding roller assembling 7, pressue device 8, drag link mechanism 9, basis 10, hydraulic system（It is not drawn into）, deslagging dress
Put（It is not drawn into）, lubricating system（It is not drawn into）.Improvements introduced be grinding roller assembling mill roll sleeve 7-1 shapes be tire-like, to
Heart circular arc bowl-type（Molded line of milling still is circular arc）, the radius of curvature of mill roll sleeve central diameter Rt takes the 3000 of grinding machine pitch diameter Dj
Times, the running orbit of grinding roller is consistent with the mill rail central diameter of mill.
Embodiment 2
Refering to Fig. 1, Fig. 2, Fig. 3, medium-speed pulverizer of the present invention include main motor 1, reductor 2, lower frame 3, middle support body 4, point
From device 5, mill assembling 6, grinding roller assembling 7, pressue device 8, drag link mechanism 9, basis 10, hydraulic system（It is not drawn into）, deslagging dress
Put（It is not drawn into）, lubricating system（It is not drawn into）.Improvements introduced be grinding roller assembling mill roll sleeve 7-1 shapes be tire-like, to
Heart circular arc bowl-type（Molded line of milling still is circular arc）, the radius of curvature of mill roll sleeve central diameter Rt takes the 2000 of grinding machine pitch diameter Dj
Times, the running orbit of grinding roller is consistent with the mill rail central diameter of mill.
Embodiment 3
Refering to Fig. 1, Fig. 2, Fig. 3, medium-speed pulverizer of the present invention include main motor 1, reductor 2, lower frame 3, middle support body 4, point
From device 5, mill assembling 6, grinding roller assembling 7, pressue device 8, drag link mechanism 9, basis 10, hydraulic system（It is not drawn into）, deslagging dress
Put（It is not drawn into）, lubricating system（It is not drawn into）.Improvements introduced be grinding roller assembling mill roll sleeve 7-1 shapes be tire-like, to
Heart circular arc bowl-type（Molded line of milling still is circular arc）, the radius of curvature of mill roll sleeve central diameter Rt takes the 5000 of grinding machine pitch diameter Dj
Times, the running orbit of grinding roller is consistent with the mill rail central diameter of mill.
Embodiment 4
Refering to Fig. 1, Fig. 2, Fig. 3, medium-speed pulverizer of the present invention include main motor 1, reductor 2, lower frame 3, middle support body 4, point
From device 5, mill assembling 6, grinding roller assembling 7, pressue device 8, drag link mechanism 9, basis 10, hydraulic system（It is not drawn into）, deslagging dress
Put（It is not drawn into）, lubricating system（It is not drawn into）.Improvements introduced be grinding roller assembling mill roll sleeve 7-1 shapes be tire-like, to
Heart circular arc bowl-type（Molded line of milling still is circular arc）, the radius of curvature of mill roll sleeve central diameter Rt takes the 7000 of grinding machine pitch diameter Dj
Times, the running orbit of grinding roller is consistent with the mill rail central diameter of mill.
Embodiment 5
Refering to Fig. 1, Fig. 2, Fig. 3, medium-speed pulverizer of the present invention include main motor 1, reductor 2, lower frame 3, middle support body 4, point
From device 5, mill assembling 6, grinding roller assembling 7, pressue device 8, drag link mechanism 9, basis 10, hydraulic system（It is not drawn into）, deslagging dress
Put（It is not drawn into）, lubricating system（It is not drawn into）.Improvements introduced be grinding roller assembling mill roll sleeve 7-1 shapes be tire-like, to
Heart circular arc bowl-type（Molded line of milling still is circular arc）, the radius of curvature of mill roll sleeve central diameter Rt takes grinding machine pitch diameter Dj's
10000 times, the running orbit of grinding roller is consistent with the mill rail central diameter of mill.
Claims (3)
1. a kind of medium-speed pulverizer, including motor, reductor, lower frame, middle support body, separator, grinding roller assembling, mill dress
With, pressue device, drag link mechanism, hydraulic system, slag-draining device, lubricating system, basis, it is characterized in that：Mill in grinding roller assembling
The shape of roll sleeve is tire-like, centripetal circular arc bowl-type, and mill roll sleeve central diameter radius of curvature span is equal to coal pulverizer section
0.5 times of circular diameter to infinitely great multiple, the molded line of milling of roller set matches with the molded line of milling of millstone sheet.
2. a kind of medium-speed pulverizer according to claim 1, it is characterized in that：Mill roll sleeve central diameter radius of curvature span
It is equal to 2000 to 10000 times of coal pulverizer pitch diameter.
3. a kind of medium-speed pulverizer according to claim 1, it is characterized in that：Mill roll sleeve central diameter radius of curvature span
It is equal to 3000 times of coal pulverizer pitch diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253788.0A CN106890705B (en) | 2017-04-18 | 2017-04-18 | A kind of medium-speed pulverizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710253788.0A CN106890705B (en) | 2017-04-18 | 2017-04-18 | A kind of medium-speed pulverizer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106890705A true CN106890705A (en) | 2017-06-27 |
| CN106890705B CN106890705B (en) | 2019-09-17 |
Family
ID=59196447
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710253788.0A Active CN106890705B (en) | 2017-04-18 | 2017-04-18 | A kind of medium-speed pulverizer |
Country Status (1)
| Country | Link |
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| CN (1) | CN106890705B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109012886A (en) * | 2018-07-02 | 2018-12-18 | 天津水泥工业设计研究院有限公司 | A kind of grinding roller of vertical mill mill speed difference on-line monitoring system |
| CN109806943A (en) * | 2017-11-22 | 2019-05-28 | 中国电建集团长春发电设备有限公司 | A kind of high loading force medium-speed pulverizer |
| CN112191331A (en) * | 2020-10-19 | 2021-01-08 | 上海谦淼工业科技有限公司 | Vertical mill with increase-volume and increase-efficiency structure |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109806943A (en) * | 2017-11-22 | 2019-05-28 | 中国电建集团长春发电设备有限公司 | A kind of high loading force medium-speed pulverizer |
| CN109012886A (en) * | 2018-07-02 | 2018-12-18 | 天津水泥工业设计研究院有限公司 | A kind of grinding roller of vertical mill mill speed difference on-line monitoring system |
| CN109012886B (en) * | 2018-07-02 | 2020-12-15 | 天津水泥工业设计研究院有限公司 | Vertical mill grinding roller and grinding disc speed difference on-line monitoring system |
| CN112191331A (en) * | 2020-10-19 | 2021-01-08 | 上海谦淼工业科技有限公司 | Vertical mill with increase-volume and increase-efficiency structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106890705B (en) | 2019-09-17 |
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| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: No. 3388 century street, Changchun Economic Development Zone, Jilin Province, Jilin Applicant after: China Electric Construction Group Changchun power generation equipment Co., Ltd. Address before: Two district Huairenlu 130000 Jilin province Changchun No. 621 Applicant before: Changchun Power Generation Equipment Plant |
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| CB03 | Change of inventor or designer information | ||
| CB03 | Change of inventor or designer information |
Inventor after: Yuan Hongfei Inventor after: Sun Yingchen Inventor after: Qi Shiyan Inventor after: Wang Lifang Inventor after: Sun Quan Inventor after: Xu Chunmei Inventor after: Wang Binxiang Inventor after: An Peng Inventor after: Yang Zhe Inventor after: Zhang Xichun Inventor after: Zhang Mingchang Inventor after: Dai Yongjun Inventor after: Chi Zhengang Inventor after: Meng Fanrong Inventor after: Rong Jingtao Inventor after: Yang Liu Inventor after: Zhao Jiahui Inventor before: Dai Yongjun Inventor before: Sun Quan Inventor before: Wang Binxiang Inventor before: Yuan Hongfei Inventor before: Zhang Xichun Inventor before: Meng Fanrong Inventor before: Zhao Jiahui Inventor before: Sun Yingchen Inventor before: Qi Shiyan Inventor before: Xu Chunmei Inventor before: Wang Lifang |
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