CN102814211A - Efficient grinding mechanism for vertical roller mill - Google Patents
Efficient grinding mechanism for vertical roller mill Download PDFInfo
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- CN102814211A CN102814211A CN 201210287978 CN201210287978A CN102814211A CN 102814211 A CN102814211 A CN 102814211A CN 201210287978 CN201210287978 CN 201210287978 CN 201210287978 A CN201210287978 A CN 201210287978A CN 102814211 A CN102814211 A CN 102814211A
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Abstract
The present invention relates to an efficient grinding mechanism for a vertical roller mill. The efficient grinding mechanism comprises a drive mechanism, wherein the drive mechanism is connected with a grinding table, the upper part of the grinding table is provided with a feeding tube, a plurality of grinding rollers are arranged on the circumferential edge of the grinding table, the grinding rollers are divided into large grinding rollers and small grinding rollers, and the large grinding rollers and the small grinding rollers are arranged on the circumferential edge of the grinding table in a staggered manner. The present invention provides an efficient grinding mechanism for a vertical roller mill, wherein the efficient grinding mechanism has characteristics of high grinding efficiency, simple structure and easy maintenance.
Description
Technical field
The present invention relates to a kind of vertical roll grinder with efficient grinding mechanism, belong to efficient grinding field of mechanisms.
Background technology
Vertical roll grinder integrates grinding, oven dry, classification (selecting powder) and conveying function; Have the efficient height, energy consumption is little, abrasion is low, running rate is high, compact conformation, occupied ground and the space is little, noise is low, product fineness is easy to remarkable advantages such as adjusting, is used for the grinding and the superfine grinding of industry materials such as cement (raw material, coal, grog), metallurgical slag, material, chemical industry more and more widely.
Traditional vertical roll grinder grinding roller all is big rollers of the same size; That each grinding roller is all being born is in small, broken bits, the function of compacting and grinding; Because grinding roller roller footpath is bigger, spherical grinding roller rolls when loose lump material, and the bigger material piece in upper strata the village can occur and turn over the phenomenon of leaving the grinding zone; Grinding roller only carries out in small, broken bits, compacting and grinding to the less material of low layer, so mill efficiency is low.
Traditional groove shape mill can only adopt the mode of built-up welding to carry out Wear-resistant Treatment; Not only make complicacy, the production cycle is long, and is also high to the requirement of mill material; Traditional mill is because the build-up wear-resistant layer is wanted on the surface; Mill must be used cast steel, casting technique complicacy and difficulty big (fluidity molten steel is poor during casting, and large-scale steel-casting production difficulty is big).And the mill processed complex of groove.
The grinding mechanism of present domestic vertical roll grinder mainly is spherical grinding roller and groove shape mill, its complex contour, and the big cost of manufacture difficulty is high, repairs comparatively difficulty and expense height after the wearing and tearing, and mill efficiency is low.Simultaneously, owing to repair difficulty behind the grinding mechanism wear, repair time is long, causes the running rate of vertical roll grinder low.These disadvantages affect the running rate of whole cement producing line, the utilization of capacity of cement producing line and benefit are affected.
Summary of the invention
The present invention is directed to above-mentioned defective, purpose is to provide a kind of defective that present vertical roll grinder grinding mechanism exists that overcomes, and can make vertical roll grinder manufacturing, installation, maintenance simple and convenient, and mill efficiency, service life and running rate improve greatly.
The technical scheme of the present invention's employing is for this reason: the present invention includes driving mechanism; Driving mechanism connects a mill; Feed pipe is established on mill top, and mill circumferential edge place is provided with some grinding rollers, and said grinding roller divides big grinding roller, little grinding roller to be crisscross arranged at mill circumferential edge place.
Said big grinding roller, little grinding roller are installed in mill circumferential edge place in pairs at interval.
Said mill upper surface is the plane.
Said grinding roller is pyramidal structure, and is inner small and outside big.
Mill surface and grinding roller peripheral hardware complex abrasion-proof steel plate.
The mechanism that supports said grinding roller motion comprises column, and the column upper end connects the grinding roller axle that can do gyration around column, and grinding roller is established in the end of grinding roller axle; Establish the grinding roller pressue device between the middle part of grinding roller axle and the bottom of column.
Bearing block is established in said column upper end, and bearing block is provided with the axle sleeve that is connected with the grinding roller axle, and the axle sleeve two ends are if the grinding roller axle is done the gyroaxis of gyration.
Said grinding roller pressue device comprises the axle sleeve that is arranged on the grinding roller axle, and axle sleeve is connected on the column through hydraulic pressure (pneumatic) spring.
Advantage of the present invention is: 1) the spaced apart structure of sized grinding roller of the present invention has improved mill efficiency greatly with grinding process refinement more; The present invention is under the prerequisite of conscientiously studying grinding process; In small, broken bits, compacting, grinding and the process of grinding process are separately carried out, and little grinding roller carries out in small, broken bits and compacting to the block bed of material, and big grinding roller carries out grinding in small, broken bits with material compacting; Through detecting; The spaced apart innovation structure of big pony roll of the present invention is under the situation identical at the mill diameter, that grinding roller quantity is identical, than the vertical roll grinder output raising 15-20% of traditional whole big roll structures; 2) mill of the present invention surface is a plane, and processing is simple; Mill gets final product as the mill material with spheroidal graphite cast-iron even casting pig, and casting technique is simple and be easy to casting, and the molten iron good fluidity is prone to produce during casting; 3) taper grinding roller of the present invention helps nipping of lump material, can not go out the phenomenon of the such lump material pressure of phenomenon pot mill roller; 4) wearing layer on mill of the present invention surface adopts the manufacturing of complex abrasion-proof steel plate with the grinding roller roller shell, and the wearing and tearing back only needs to change Wear-Resistant Compound Steel Plate, and therefore, the maintenance cycle weak point is repaired simply by grinding of the present invention mechanism behind surface abrasion.
Description of drawings
Fig. 1 is the A-A view of Fig. 2.
Fig. 2 is a vertical view of the present invention.
1 is that motor, 2 is that reductor, 3 is that column, 4 is that hydraulic pressure (pneumatic) spring, 5 is that gyroaxis, 6 is that grinding roller axle, 7 is that mill, 8 is that feed pipe, 9 is that gyroaxis, 10 is that big grinding roller, 11 is little grinding roller among the figure.
The specific embodiment
Like accompanying drawing, motor 1 drives reductor 2 runnings, does gyration simultaneously with the mill 7 that reductor 2 output shafts link to each other.Material is fallen the central authorities of mill 7 from feed pipe 8, the surface of mill 7 forms the bed of material to border movement at the outer rim place on mill surface in the action of centrifugal force lower edge.Be installed on gyroaxis 5 and the grinding roller axle 6 common rocking arms of forming in the column 3 upper shaft bearings; The rocking arm that hydraulic pressure (pneumatic) spring 4 is formed through gyroaxis 5 and grinding roller axle 6 applies grinding pressure to big grinding roller 10 with little grinding roller 11; Mill 7 drives grinding roller through the bed of material and does gyration along grinding roller axle 6 separately, and mill and grinding roller roll grinding to the bed of material.Mill 7 surfaces are a plane from inside to outside, and big grinding roller 10 is taper and inner small and outside big with little grinding roller 11, and big grinding roller 10 is installed with little grinding roller 11 in pairs at interval.
Welded support and bearing block on the column 3 of the present invention, through bolt bearing and bearing cap have been installed, support is used to install grinding machine toroidal shell and grinding machine shell; On the diaxon bearing on the same column 3 gyroaxis 5 is installed, gyroaxis 5 is formed rocking arm through axle sleeve 5 and grinding roller axle 6; Big grinding roller 10 or little grinding roller 11 are installed on the grinding roller axle 6, axle sleeve also is installed on the grinding roller axle 6, be connected through the end of pin with hydraulic pressure (pneumatic) spring 4, the other end of hydraulic pressure (pneumatic) spring 4 links to each other with column through pin.So just passive column 3, work the rocking arm, the big grinding roller 10 that plays the grinding effect or the little grinding roller 11 that connect the power transmission effect and hydraulic pressure (pneumatic) spring 4 of a grinding pressurization is combined into a module.
Claims (8)
1. a vertical roll grinder comprises driving mechanism with efficient grinding mechanism, and driving mechanism connects a mill; Feed pipe is established on mill top; Mill circumferential edge place is provided with some grinding rollers, it is characterized in that, said grinding roller divides big grinding roller, little grinding roller to be crisscross arranged at mill circumferential edge place.
2. a kind of vertical roll grinder according to claim 1 is characterized in that with efficient grinding mechanism said big grinding roller, little grinding roller are installed in mill circumferential edge place in pairs at interval.
3. a kind of vertical roll grinder according to claim 1 is characterized in that with efficient grinding mechanism said mill upper surface is the plane.
4. a kind of vertical roll grinder according to claim 1 is characterized in that with efficient grinding mechanism said grinding roller is pyramidal structure, and is inner small and outside big.
5. a kind of vertical roll grinder according to claim 1 is characterized in that with efficient grinding mechanism, mill surface and grinding roller peripheral hardware complex abrasion-proof steel plate.
6. a kind of vertical roll grinder according to claim 1 is characterized in that with efficient grinding mechanism the mechanism that supports said grinding roller motion comprises column, and the column upper end connects the grinding roller axle that can do gyration around column, and grinding roller is established in the end of grinding roller axle; Establish the grinding roller pressue device between the middle part of grinding roller axle and the bottom of column.
7. a kind of vertical roll grinder according to claim 6 is characterized in that with efficient grinding mechanism bearing block is established in said column upper end, and bearing block is provided with the axle sleeve that is connected with the grinding roller axle, and the axle sleeve two ends are if the grinding roller axle is done the gyroaxis of gyration.
8. a kind of vertical roll grinder according to claim 6 is characterized in that with efficient grinding mechanism said grinding roller pressue device comprises the axle sleeve that is arranged on the grinding roller axle, and axle sleeve is connected on the column through hydraulic pressure (pneumatic) spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210287978 CN102814211A (en) | 2012-08-14 | 2012-08-14 | Efficient grinding mechanism for vertical roller mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201210287978 CN102814211A (en) | 2012-08-14 | 2012-08-14 | Efficient grinding mechanism for vertical roller mill |
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| Publication Number | Publication Date |
|---|---|
| CN102814211A true CN102814211A (en) | 2012-12-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201210287978 Pending CN102814211A (en) | 2012-08-14 | 2012-08-14 | Efficient grinding mechanism for vertical roller mill |
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| CN (1) | CN102814211A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243387A (en) * | 2017-08-08 | 2017-10-13 | 江苏鹏飞集团股份有限公司 | Single shaft swings compaction type grinding roller vertical mill |
| CN107282210A (en) * | 2017-08-08 | 2017-10-24 | 江苏鹏飞集团股份有限公司 | The vertical pulverizer for rolling grinding roller of bidirectional swinging |
| CN107321446A (en) * | 2017-08-08 | 2017-11-07 | 江苏鹏飞集团股份有限公司 | The vertical pulverizer lapping device of twin-stage grinding |
-
2012
- 2012-08-14 CN CN 201210287978 patent/CN102814211A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107243387A (en) * | 2017-08-08 | 2017-10-13 | 江苏鹏飞集团股份有限公司 | Single shaft swings compaction type grinding roller vertical mill |
| CN107282210A (en) * | 2017-08-08 | 2017-10-24 | 江苏鹏飞集团股份有限公司 | The vertical pulverizer for rolling grinding roller of bidirectional swinging |
| CN107321446A (en) * | 2017-08-08 | 2017-11-07 | 江苏鹏飞集团股份有限公司 | The vertical pulverizer lapping device of twin-stage grinding |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121212 |