CN201912973U - Dry-type ball mill for milling vanadium slag - Google Patents
Dry-type ball mill for milling vanadium slag Download PDFInfo
- Publication number
- CN201912973U CN201912973U CN2010206902425U CN201020690242U CN201912973U CN 201912973 U CN201912973 U CN 201912973U CN 2010206902425 U CN2010206902425 U CN 2010206902425U CN 201020690242 U CN201020690242 U CN 201020690242U CN 201912973 U CN201912973 U CN 201912973U
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- screen
- sieve
- dry ball
- storehouse
- vanadium slag
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Abstract
The utility model discloses a dry-type ball mill for milling vanadium slag, which comprises a rotatable barrel body and a wear-resisting lining plate, wherein the wear-resisting lining plate is arranged on the inner surface of the barrel body, a double-layer roller sieve comprising an inner-layer sieve and an outer-layer sieve is fixedly installed at the outer side of a discharging opening of the barrel body, and the size of the sieve pores of the inner-layer sieve is larger than that of the sieve pores of the outer-layer sieve. Therefore, not only is slag iron ensured to be well separated, but also the vanadium slag milled to a set granularity can be successfully discharged, and the work efficiency of the ball mill is well improved while the overmilling of the vanadium slag is not caused.
Description
Technical field
The utility model relates to a kind of dry ball, relates in particular to a kind of dry ball that is used to grind vanadium slag.
Background technology
The raw material of vanadium oxide production technology is the steel-making vanadium slag, because the steel-making vanadium slag is that heat is skimmed, certainly exists the situation of vanadium iron congruent melting.Because the existence of iron can influence subsequent technique, therefore need remove the iron in the steel-making vanadium slag.But, before the vanadium slag fine grinding, be difficult to iron is wherein removed fully.In order to obtain levigate vanadium slag, the common practice is to use ball mill that the steel-making vanadium slag is ground.
Ball mill can be divided into dry type and wet type, is made up of major parts such as charging aperture, discharging portion, rotating part, driving sections.Rotating part is also referred to as cylinder, comprises cylindrical tube and the abrasion-proof backing block on the surface that sets within it, and the inner barrel space can be divided into first storehouse and second storehouse by partition panel.Material enters cylindrical shell by charging aperture, at first enter first storehouse, the abrasive body such as steel ball, rod iron of different size is housed in first storehouse, cylindrical shell rotates and falls after the centrifugal force that produces takes abrasive body to certain altitude, and material is produced bang and abrasive action, and material is after the corase grind of first storehouse, enter second storehouse through partition panel, abrasive body also is housed in this storehouse, and with further grinding material, the material after the grinding is discharged by discharging portion.
Yet, when in ball mill, grinding, can from the steel-making vanadium slag, separate abrasive grit, and the existence of abrasive grit can influence the grainding capacity of ball mill.And, comprise vanadium slag and abrasive grit in the material behind ball mill grinding, need to use special equipment to sieve, the problem that exists complex process, increase equipment to use causes cost and man-hour to increase.
And contained abrasive grit in the vanadium slag is if untimely discharge can cause ball mill " tripe rises ", thus the increase working strength, and the while is also limited the production capacity of ball mill.For this reason, the ball mill that the domestic so far same industry is used to grind vanadium slag is little ball milling, and diameter is that 2.0m or bigger ball mill all are not used in the mill vanadium slag before this.
In addition, the noise during the ball mill running reaches more than 110 decibels, and wherein, cylinder is the ball mill main noise source.In order to reduce the influence of ball mill noise to environment, existing ball mill is all built a sound insulation room specially, and ball mill is installed in the sound insulation room.When operations such as needs overhaul, operating personnel enter the operation of sound insulation room again.Yet, build the sound insulation room and not only take bigger land area, simultaneously also need to drop into more cost, work under bad environment when operating personnel such as overhaul at operation simultaneously.
The utility model content
The purpose of this utility model is to provide a kind of can be with thick vanadium slag levigate and that vanadium slag and abrasive grit are peeled away dry ball.
Another purpose of the present utility model is to provide a kind of dry ball that makes vanadium slag and abrasive grit can both pass through the ball mill partition panel smoothly.
The purpose of this utility model also is to provide a kind of dry ball that is used to grind vanadium slag that can reduce noise.
To achieve these goals, according to the dry ball that is used to grind vanadium slag of the present utility model, comprise rotating cylindrical shell and the abrasion-proof backing block that is arranged on described cylinder inner surface, connect the two-layer cylinder sieve that comprises inner layer screen and outer sieve in the discharging opening outside of described cylindrical shell, so that described two-layer cylinder sieve rotates with described cylindrical shell, the screen size of described inner layer screen is greater than the screen size of described outer sieve.
Preferably, between described cylindrical shell and described abrasion-proof backing block, the noise reduction member is set.
Preferably, described inner barrel is provided with partition panel, the inner barrel space is divided into first storehouse and second storehouse successively along the material moving direction, the more close charging aperture in described first storehouse, form the through hole that is communicated with described first storehouse and second storehouse on the partition panel, the cross-sectional area of described through hole enlarges gradually along the material moving direction.
Preferably, the screen-aperture of described outer sieve is 20～50 orders.
Preferably, the screen-aperture of described outer sieve is 40 orders.
Preferably, the screen-aperture of described inner layer screen is 5～10 orders.
Preferably, the screen-aperture of described inner layer screen is 8 orders.
Preferably, described noise reduction member is a silicane rubber plate.
Preferably, described through hole is horn mouth tubaeform towards the material moving direction.
According to the utility model, vanadium slag is discharged from the back smoothly through ball mill discharging opening two-layer cylinder screening, so can guarantee successfully to separate with abrasive grit after the vanadium slag fine grinding.And the utility model prevents to stop up at partition panel, thereby prevents " tripe rises " phenomenon.Simplify technology and equipment, reduction investment simultaneously as far as possible, can reduce the noise of ball mill operation.
Description of drawings
Fig. 1 is the schematic diagram according to the ball mill of the utility model embodiment;
Fig. 2 is the structural map according to the ball mill partition panel of the utility model embodiment, (a) is the front view of a sector element of partition panel, (b) is the cutaway view along the A-A line;
Fig. 3 is the ball mill silicane rubber plate scheme of installation according to the utility model embodiment.
The specific embodiment
Below, describe embodiment of the present utility model in detail with reference to accompanying drawing.
As shown in Figure 1, comprise cylindrical shell 5 according to the dry ball 100 of the utility model embodiment, cylindrical shell 5 can rotate around self axis, and cylindrical shell 5 inner surfaces are provided with the abrasion-proof backing block that directly contacts with material and abrasive body.One side of cylindrical shell 5 is provided with charging aperture 1, and cylindrical shell 5 end side are provided with discharging opening.As a whole, the vanadium slag that enters into cylindrical shell 5 moves by side to discharging opening from charging aperture 1, therefore the direction (being direction from left to right Fig. 1) from charging aperture 1 side to discharging opening is defined as the material moving direction.Preferably, parts such as screen cloth are set in discharging opening, thereby only allow the following material of predetermined particle diameter to be discharged to the cylinder outside by discharging opening.Perhaps, the shape of discharging opening can be formed annular, crescent, polygon, strip, shaped form slit etc., thereby only allow the following material of predetermined particle diameter to be discharged to the cylinder outside by discharging opening.
Two-layer cylinder sieve 20 is installed in the discharging opening outside, this two-layer cylinder sieve 20 comprises inner layer screen 21 and outer sieve 22, forms big sieve aperture on the inner layer screen 21, forms little sieve aperture on the outer sieve 22, inner layer screen 21 mainly is to screen out the bulky grain abrasive grit, also alleviates the pressure of outer sieve 22 simultaneously.Two-layer cylinder sieves the selection that 20 keys are skin is sieved 22 screen-apertures.The screen-aperture of outer sieve 22 is preferably 20～50 orders, can guarantee to remove abrasive grit non clogging screen hole again like this, thereby guarantee the ball mill operating efficiency well, large-scale dry ball (for example, the dry ball of diameter more than 2.0m) is applied in the vanadium slag fine grinding technology well.Effect was desirable more when the screen-aperture of outer sieve 22 was 40 orders.The screen-aperture of described inner layer screen 21 can be 5～10 orders, is preferably 8 orders.
During actual the use, rotary screen 20 rotates with cylindrical shell 5, and the material that comes out from discharging opening is sieved.The material that comes out from cylindrical shell 5 discharging openings at first enters into inner layer screen 21, particle diameter falls between outer sieve 22 and the inner layer screen 21 less than the material of inner layer screen 21 sieve apertures, wherein particle diameter reclaims as finished product less than the material that skin sieves 22 sieve apertures, to carry out subsequent techniques (referring to arrow A) such as further fine grinding.Particle diameter is discharged (referring to arrow C) more than or equal to the material (abrasive grit etc.) of inner layer screen 21 sieve apertures from inner layer screen 21 ends, particle diameter less than inner layer screen 21 sieve apertures but the material (abrasive grit etc.) that sieves 22 sieve apertures more than or equal to skin from discharge (referring to arrow B) between skin sieve 22 and the inner layer screen 21.Thus, the material that levigate material (major part is a vanadium slag) and particle diameter are bigger (most of be abrasive grit) is discharged from the back smoothly through the two-layer cylinder screening, so can guarantee that levigate vanadium slag successfully separates with abrasive grit.And, owing to material is divided into three parts, therefore be convenient to subsequent treatment according to particle diameter.In addition, need not to use other equipment that the vanadium slag that grinding obtains is sieved, therefore simplified technology, reduced the equipment use, save cost and man-hour.
And described cylindrical shell 5 inside are provided with partition panel 30, and cylindrical shell 5 inner spaces are divided into first storehouse 51 and second storehouse 52 along material moving direction (parallel with cylindrical shell pivot center direction), described first storehouse 51 more close charging apertures 1.
In order to reduce noise, can between cylindrical shell 5 and abrasion-proof backing block 40, noise reduction member 60 be set as shown in Figure 3.This noise reduction member 60 is preferably silicane rubber plate.Through test, the use of silicane rubber plate can be reduced to 95dB by 110dB with the noise of ball mill operation.
The utility model can produce following beneficial effect: 1. the improvement of partition panel has greatly reduced the possibility of ball mill " tripe rises "; 2. discharging portion two-layer cylinder sieve had both guaranteed that slag iron separated well, and the vanadium slag that is ground to set granularity is discharged smoothly, had improved the ball mill operating efficiency when not causing vanadium slag overground well; 3. the use of silicane rubber plate can be reduced to 95dB by 110dB with the noise of ball mill operation, has saved the expense of noise treatment to a great extent.
More than, though be that example describes with two storehouses (having first storehouse and second storehouse) dry ball, the utility model is not limited thereto, and also goes for single storehouse or has the dry ball in a plurality of storehouses.
And the utility model goes for the ball mill of various sizes, both can apply to large-size ball mill, also can apply to small grinder.
The utility model is not limited to the foregoing description, under the situation that does not break away from the utility model scope, can carry out various changes and modifications.
Claims (9)
1. dry ball that is used to grind vanadium slag, comprise rotating cylindrical shell and the abrasion-proof backing block that is arranged on described cylinder inner surface, it is characterized in that connecting the two-layer cylinder sieve that comprises inner layer screen and outer sieve in the discharging opening outside of described cylindrical shell, so that described two-layer cylinder sieve rotates with described cylindrical shell, the screen size of described inner layer screen is greater than the screen size of described outer sieve.
2. dry ball as claimed in claim 1 is characterized in that between described cylindrical shell and described abrasion-proof backing block the noise reduction member being set.
3. dry ball as claimed in claim 1, it is characterized in that described inner barrel is provided with partition panel, the inner barrel space is divided into first storehouse and second storehouse successively along the material moving direction, the more close charging aperture in described first storehouse, form the through hole that is communicated with described first storehouse and second storehouse on the partition panel, the cross-sectional area of described through hole enlarges gradually along the material moving direction.
4. as any described dry ball in the claim 1 to 3, it is characterized in that the screen-aperture of described outer sieve is 20～50 orders.
5. dry ball as claimed in claim 4 is characterized in that the screen-aperture of described outer sieve is 40 orders.
6. dry ball as claimed in claim 4, the screen-aperture that it is characterized in that described inner layer screen is 5～10 orders.
7. dry ball as claimed in claim 5, the screen-aperture that it is characterized in that described inner layer screen is 8 orders.
8. dry ball as claimed in claim 2 is characterized in that described noise reduction member is a silicane rubber plate.
9. dry ball as claimed in claim 3 is characterized in that described through hole is horn mouth tubaeform towards the material moving direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206902425U CN201912973U (en) | 2010-12-30 | 2010-12-30 | Dry-type ball mill for milling vanadium slag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206902425U CN201912973U (en) | 2010-12-30 | 2010-12-30 | Dry-type ball mill for milling vanadium slag |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201912973U true CN201912973U (en) | 2011-08-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206902425U Expired - Fee Related CN201912973U (en) | 2010-12-30 | 2010-12-30 | Dry-type ball mill for milling vanadium slag |
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| CN (1) | CN201912973U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974443A (en) * | 2012-12-18 | 2013-03-20 | 浏阳市大瑶南山花炮机械厂 | Classified powder material sieving device |
| CN103934067A (en) * | 2014-05-15 | 2014-07-23 | 江苏天鹏机电制造有限公司 | Grinding mechanism of high-efficiency ball mill |
| CN104437765A (en) * | 2014-12-08 | 2015-03-25 | 宁夏锦绣实业有限公司 | Special mill for ultrafine fly ash |
| CN107774399A (en) * | 2016-08-24 | 2018-03-09 | 沈阳铝镁设计研究院有限公司 | A kind of tilt bed anode scrap autogenous grinding descaling machine and autogenous grinding method for cleaning |
| CN110102463A (en) * | 2019-05-30 | 2019-08-09 | 徐州巨旋重型机械有限公司 | Flexible rotary screen, roller pelletizer and its screening and the method for handling viscous material |
-
2010
- 2010-12-30 CN CN2010206902425U patent/CN201912973U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102974443A (en) * | 2012-12-18 | 2013-03-20 | 浏阳市大瑶南山花炮机械厂 | Classified powder material sieving device |
| CN102974443B (en) * | 2012-12-18 | 2014-09-17 | 浏阳市大瑶南山花炮机械厂 | Classified powder material sieving device |
| CN103934067A (en) * | 2014-05-15 | 2014-07-23 | 江苏天鹏机电制造有限公司 | Grinding mechanism of high-efficiency ball mill |
| CN104437765A (en) * | 2014-12-08 | 2015-03-25 | 宁夏锦绣实业有限公司 | Special mill for ultrafine fly ash |
| CN107774399A (en) * | 2016-08-24 | 2018-03-09 | 沈阳铝镁设计研究院有限公司 | A kind of tilt bed anode scrap autogenous grinding descaling machine and autogenous grinding method for cleaning |
| CN110102463A (en) * | 2019-05-30 | 2019-08-09 | 徐州巨旋重型机械有限公司 | Flexible rotary screen, roller pelletizer and its screening and the method for handling viscous material |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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: 20110803 Termination date: 20161230 |