CN107626394A - A kind of cement finish grinding vertical grinding roller structure - Google Patents
A kind of cement finish grinding vertical grinding roller structure Download PDFInfo
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- CN107626394A CN107626394A CN201711067538.4A CN201711067538A CN107626394A CN 107626394 A CN107626394 A CN 107626394A CN 201711067538 A CN201711067538 A CN 201711067538A CN 107626394 A CN107626394 A CN 107626394A
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Abstract
The invention discloses a kind of cement finish grinding vertical grinding roller structure, spacer ring is provided with the middle part of the grinding area of the mill, the grinding of the mill is distinguished into the compression grinding area on the inside of mill and the friction grinding area on the outside of mill by the spacer ring, all compressed powder grinding rollers are arranged in the compression grinding area, and all Frication powder grinding rollers are arranged in the friction grinding area；The compression grinding area has inner roller groove, and the friction grinding area has outer side roller groove, and the groove width of the inner roller groove is more than the groove width of the outer side roller groove.Cement finish grinding of the present invention is with vertical grinding roller structure using interior outside secondary grinding roller extruding grinding process, and according to the characteristics of secondary extrusion material, design is optimized to the roller groove and the shape in rod face to match, the quality requirements of cement can be improved and cement grinding power consumption is greatly lowered.
Description
Technical field
The present invention relates in grinding technology field, more particularly to a kind of cement finish grinding vertical grinding roller structure.
Background technology
Vertical roller grinder abbreviation Vertical Mill, its grinding principle are bed of material grindings, i.e., by between particle and particle mutually extruding come
The grinding of material is realized, grinding process controllability is good, and mill efficiency is high.
The grinding structure that vertical roller grinder uses at present for：New feeding and powder concentrator feed back are mixed by feed bin under gravity
Feed in the middle part of mill, mill rotational band animal material is rotated, and material is transported from mill middle part to mill edge under the influence of centrifugal force
It is dynamic, when material movement to grinding roller lower section, under the collective effect of collet and grinding roller pressure, the grinding roller pressing materials (bed of material
), for material by grinding, the material after grinding crosses collet under the influence of centrifugal force, leaves mill, falls under gravity into
Vane, is then brought into the powder concentrator on grinding machine top by high velocity air upward in vane, and qualified finished product is walked by powder concentrator choosing, do not conformed to
Feedback outlet of the bulky grain of lattice through powder concentrator enters feed bin, returned after being mixed with new feeding mill continue grinding, until grinding into
The finished product of release mesh requirement.
Existing equal one kind of vertical grinding roller is cylinder, and one kind is cone.Both grinding rollers are past when coordinating with horizontal grinding disc
Toward higher collet is needed, to extend grinding time of the material on mill, so as to have the function that Stabilizing Materials bed.
Due to the presence of very high collet, cause grinding roller eroded area to compare concentration, have impact on the grinding roller life-span.
Vertical Mill is in grinding process, and material is under the influence of centrifugal force from mill center to mill border movement, material chi
On very little from large to small, the thickness of the bed of material is by thick thinning, by loosely becoming closely knit.And the chamber that above two conventional roll set is formed with mill
Body is essentially rectangular, thus the thickness of feed layer formed is basically identical, and this results in the thickness of bed of material ravelled spot and closely knit place one
Cause.Because the size of ravelled spot material is bigger than normal, thus grinding machine vibration can be influenceed, on the other hand, due to being cut between grinding roller and mill
Face is the bed of material space of rectangle, and the region that grinding roller is squeezed on material bed is wider, and the pressure at the closely knit place of material bed is shared by ravelled spot
, thus the actual pressure for acting on the closely knit place of material bed is smaller, is unfavorable for producing fine powder, produces high thin material finished product and compares
It is difficult.
The content of the invention
For above-mentioned technical problem, the present invention proposes a kind of cement finish grinding vertical grinding roller structure, in existing vertical rolls
On the basis of grinding basic structure, grinding process is extruded using interior outside secondary grinding roller, and according to the characteristics of secondary extrusion material, it is right
The roller groove and the shape in rod face to match optimizes design, can improve the quality requirements of cement and cement grinding is greatly lowered
Power consumption.
In order to realize above-mentioned technical purpose, the present invention adopts the following technical scheme that：
A kind of cement finish grinding vertical grinding roller structure, the grinding area middle part of the mill are provided with spacer ring, and the spacer ring is by described in
The grinding of mill is distinguished into the compression grinding area on the inside of mill and the friction grinding area on the outside of mill, all compressed powders
Grinding roller is arranged in the compression grinding area, and all Frication powder grinding rollers are arranged in the friction grinding area；The compression
Grinding area has inner roller groove, and the friction grinding area has outer side roller groove, and the groove width of the inner roller groove is more than the outside
The groove width of roller groove.
The inner roller groove and outer side roller groove are circular arc roller groove, wherein, the groove width R1 of inner roller groove numerical value
It is 1.4-1.6 times of the groove width R2 of outer side roller groove numerical value.
The grinding roller diameter of the compressed powder grinding roller is more than the grinding roller diameter of Frication powder grinding roller.
The roll surface of the compressed powder grinding roller and the roll surface of Frication powder grinding roller are spherical roll surface.
Beneficial effect：
For the present invention using asymmetric spherical grinding roller, the roller that the roller groove for being located at outside is more than positioned at the wide R1 of roller of the roller groove of inner side is wide
R2, the roller dish gap of inner side is larger, advantageously forms material wedge, smaller for compression grinding area, speed difference herein；Between the roller groove in outside
Gap is smaller, and is permanent gap, is designed to larger speed difference, forms friction grinding area, is advantageous to fine grain generation.
Due to the material of outside grinding roller grinding have been subjected to inner side grinding roller first crushing, into outside material particular diameter compared with
Small, its grinding roller diameter is small compared with inner side grinding roller diameter, because the linear velocity of outside slot grinding is more than inner side slot grinding, the outer side grinding of minor diameter
Roller is more convenient for improving roll-in number of the grinding roller to material, reinforced cementitious granule-morphology, can more meet finished cement to granule-morphology
And the technical requirements of grain composition, therefore cement finish grinding vertical roller grinder can improve the quality requirements of cement and be greatly lowered
Cement grinding power consumption.
Brief description of the drawings
Fig. 1 is the structural representation of cement finish grinding vertical grinding roller of the present invention；
Fig. 2 is the floor map of mill；
Wherein, 1 is charging aperture；2 be compressed powder grinding roller；3 be mill；4 be material bearing disc；5 be discharging opening；6 be Frication powder grinding roller；
7 be blocking material ring；8 be lining board for grinding discs；9 be material scraping plate；10 be reductor.
Embodiment
For innovation and creation content, feature and effect of the invention can be further appreciated that, following examples are hereby enumerated, in detail
Carefully it is described as follows：
As shown in Fig. 1, a kind of cement finish grinding vertical grinding roller structure, the grinding area middle part of the mill is provided with spacer ring, institute
State spacer ring and the grinding of the mill is distinguished into the compression grinding area on the inside of mill and the friction grinding on the outside of mill
Area, all compressed powder grinding rollers are arranged in the compression grinding area, and all Frication powder grinding rollers are arranged at the friction grinding
In area；The compression grinding area has inner roller groove, and the friction grinding area has outer side roller groove, the groove width of the inner roller groove
More than the groove width of the outer side roller groove.
It is further preferred with vertical grinding roller structure technology scheme as cement finish grinding of the present invention, the inner roller groove and
Outer side roller groove is circular arc roller groove, wherein, the groove width R1 of inner roller groove numerical value is the groove width R2 of outer side roller groove number
The 1.4-1.6 of value.
Further preferred, the compressed powder grinding roller as cement finish grinding of the present invention with vertical grinding roller structure technology scheme
Grinding roller diameter be more than Frication powder grinding roller grinding roller diameter.
Further preferred, the compressed powder grinding roller as cement finish grinding of the present invention with vertical grinding roller structure technology scheme
Roll surface and the roll surface of Frication powder grinding roller be spherical roll surface.
Although the preferred embodiment of the invention is described above, the invention is not limited to
The embodiment stated, above-mentioned embodiment is only schematical, be not it is restricted, this area it is common
Technical staff is not departing from the invention objective and scope of the claimed protection situation under the enlightenment of the invention
Under, many forms can also be made, these are belonged within the protection domain of the invention.
Claims (1)
1. a kind of cement finish grinding vertical grinding roller structure, it is characterised in that be provided with spacer ring, institute in the middle part of the grinding area of the mill
State spacer ring and the grinding of the mill is distinguished into the compression grinding area on the inside of mill and the friction grinding on the outside of mill
Area, all compressed powder grinding rollers are arranged in the compression grinding area, and all Frication powder grinding rollers are arranged at the friction grinding
In area；The compression grinding area has inner roller groove, and the friction grinding area has outer side roller groove, the groove width of the inner roller groove
More than the groove width of the outer side roller groove；
The inner roller groove and outer side roller groove are circular arc roller groove, wherein, the groove width R1 of inner roller groove numerical value is outer
1.4-1.6 times of the groove width R2 of side roller groove numerical value；
The grinding roller diameter of the compressed powder grinding roller is more than the grinding roller diameter of Frication powder grinding roller；
The roll surface of the compressed powder grinding roller and the roll surface of Frication powder grinding roller are spherical roll surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711067538.4A CN107626394A (en) | 2017-11-03 | 2017-11-03 | A kind of cement finish grinding vertical grinding roller structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711067538.4A CN107626394A (en) | 2017-11-03 | 2017-11-03 | A kind of cement finish grinding vertical grinding roller structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107626394A true CN107626394A (en) | 2018-01-26 |
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ID=61106296
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711067538.4A Pending CN107626394A (en) | 2017-11-03 | 2017-11-03 | A kind of cement finish grinding vertical grinding roller structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN107626394A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107617474A (en) * | 2017-11-03 | 2018-01-23 | 江苏吉能达环境能源科技有限公司 | A kind of grinding vertical grinding roller structure |
-
2017
- 2017-11-03 CN CN201711067538.4A patent/CN107626394A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107617474A (en) * | 2017-11-03 | 2018-01-23 | 江苏吉能达环境能源科技有限公司 | A kind of grinding vertical grinding roller structure |
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