CN204294311U - The energy-conservation liner plate of a kind of ball mill - Google Patents
The energy-conservation liner plate of a kind of ball mill Download PDFInfo
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- CN204294311U CN204294311U CN201420766977.XU CN201420766977U CN204294311U CN 204294311 U CN204294311 U CN 204294311U CN 201420766977 U CN201420766977 U CN 201420766977U CN 204294311 U CN204294311 U CN 204294311U
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- steel ball
- liner plate
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- base plate
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Abstract
The energy-conservation liner plate of a kind of ball mill, the structure of ship type base plate is that two ends are high, middle low; The end face of ship type base plate is provided with some circumferentially uniform arcuate furrows, between arcuate furrow, is provided with fin; The middle part of arcuate furrow is provided with removable step, and removable step is connected with ship type base plate by bolt; The bottom land of arcuate furrow is the circular arc of indent; Removable step left end is two-layer ledge structure, and removable step right-hand member is inclined-plane.The utility model is rational in infrastructure, effectively improves dribbling height, ensure that steel ball makes parabolic motion in cylindrical shell, given full play to the breaking capacity of steel ball; Can make steel ball and liner plate in relative motion, become line or line to be linked to be the contact in face, effectively improve steel ball and ability is pulverized to coal, improve productivity ratio; The function of steel ball can be divided into fragmentation and grinding, extend the service life of liner plate, decrease unnecessary waste of material, apply and there is good economic and social benefit.
Description
Technical field
The utility model belongs to ball mill technical field, and particularly the energy-conservation liner plate of a kind of ball mill, is applicable to the steel ball mill in each thermal power plant.
Background technology
Steel ball mill, as models such as MTZ3570, DTM320/580, BBD4062, is all equipped with steel ball in ball mill barrel, and institute's grinding media is coal.
Steel ball mill operation principle: ball mill operation is carried out in grinding mill barrel, cylindrical shell is built with steel ball and institute's grinding media, steel ball and medium are brought to certain height along with the rotation of cylindrical shell after, due to steel ball and medium deadweight and fall, the effect of power so the medium be contained in cylindrical shell is hit; On the other hand due to medium in cylindrical shell along the revolution in cylindrical shell axle center and rotation, between medium and medium, medium and produce mutual impact, extruding and mill with cylindrical shell contact zone and shell power, thus medium is ground.Owing to having frictional force between ball mill steel ball and cylindrical shell, when cylindrical shell rotates, namely steel ball is taken up and is raised to certain altitude, due to the Action of Gravity Field of steel ball itself, the track whereabouts that last edge is certain, in region, the steel ball of (steel ball is brought) is subject to the effect of two kinds of power: a kind of active force for imposing on steel ball when cylindrical shell rotates from tangential direction; Another kind of for the symmetrical one side of steel ball size and the power contrary with above-mentioned active force, the generation of this active force is due to steel ball dead weight caused by slide downward.Therefore, above-mentioned two kinds of active forces, all a pair couple can be formed for any one steel ball, and because steel ball is the centre being compressed in cylindrical shell and adjacent steel ball, so couple can make steel ball all there is the frictional resistance differed in size each other, thus each layer steel ball will make revolution motion (certainly, each layer ball does not have no-load speed with cylindrical shell, and the revolution speed of each layer steel ball is also different simultaneously) with cylindrical shell axle center.In region steel ball from fall and leave, thus in region, strong impact grinding effect is occurred to the medium in cylindrical shell.Owing to producing impulsive force during steel ball drop, thus in region, steel ball produces very strong and chaotic motion.
As shown in Figure 1, liner plate is Wave-shaped structural to the liner plate of prior art.Publication number is that the Chinese patent of CN2603694 discloses a kind of ball grinding machine lining board, and the curved surface of the inwall undulate evagination of the radial section of liner plate, the radius of wave successively decreases from centre to both sides.The liner plate rigidity of this inwall undulate structure obviously strengthens, not yielding and cracking, and liner plate inwall and steel ball, not easily there is relative sliding between material, both improve the operating efficiency of ball mill, make again liner plate inner wall abrasion reduce, the service life of liner plate can be improved.Because the wave radius of centre is high, the castering action of liner plate increases, and improves the production efficiency of ball mill, save energy consumption, and the broken mill quality of material is improved.According to this patent, in use there is following defect: 1), effectively can not improve steel ball parabola height, cylindrical shell at the volley steel ball runs along liner plate Wave curved, declines to the percentage of damage of coal; 2) though, liner plate overall structure is Wave curved, in steel ball and liner plate relative motion only a little or point be linked to be the contact of line, so the relative undercapacity of former lining plate structure; 3) power consumption of ball mill, is added; 4), after liner plate uses, find on inspection, the local liner plate trough place that wear liner is maximum, be the weakest place of liner plate, and also have adequate thickness at crest place, liner plate is scrapped in advance, improves production cost, causes the waste of material.
Summary of the invention
The purpose of this utility model to solve the problems of the technologies described above.
The purpose of this utility model is achieved in that the energy-conservation liner plate of a kind of ball mill, comprise ship type base plate, arcuate furrow, the bottom surface of ship type base plate is the arc surface made according to ball mill diameter, it is characterized in that: the structure of described ship type base plate is that two ends are high, middle low; The end face of ship type base plate is provided with some circumferentially uniform arcuate furrows, between arcuate furrow, is provided with fin; The middle part of arcuate furrow is provided with removable step, and removable step is connected with ship type base plate by bolt.
The bottom land of described arcuate furrow is the circular arc of indent.
Described removable step left end is two-layer ledge structure, and removable step right-hand member is inclined-plane.
The utility model is rational in infrastructure, effectively improves dribbling height, ensure that steel ball makes parabolic motion in cylindrical shell, given full play to the breaking capacity of steel ball; Arcuate furrow can make steel ball and liner plate in relative motion, become line or line to be linked to be the contact in face, effectively improves steel ball and pulverizes ability to coal, improve productivity ratio; Removable step and arcuate furrow combination, the function of steel ball is divided into fragmentation and grinding, extends the service life of liner plate, decrease unnecessary waste of material, adaptability scope is wide, applies and has good economic and social benefit.
Accompanying drawing explanation
Fig. 1 is the undaform lining plate structure schematic diagram of prior art.
Fig. 2 is structural representation of the present utility model.
In figure: 1. undaform liner plate; 2. ship type base plate; 3. arcuate furrow; 4. removable step.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail, but not as to restriction of the present utility model:
The energy-conservation liner plate of a kind of ball mill, comprises ship type base plate 2, arcuate furrow 3, and the bottom surface of ship type base plate 2 is the arc surface made according to ball mill diameter, and the structure of described ship type base plate 2 is that two ends are high, middle low; The end face of ship type base plate 2 is provided with some circumferentially uniform arcuate furrows 3, between arcuate furrow 3, is provided with fin; The middle part of arcuate furrow 3 is provided with removable step 4, and removable step 4 is connected with ship type base plate 2 by bolt; The bottom land of described arcuate furrow 3 is the circular arc of indent; Described removable step 4 left end is two-layer ledge structure, and removable step 4 right-hand member is inclined-plane.
During concrete enforcement, steel ball makes parabolic motion in cylindrical shell, and steel ball rolls along the bottom land of arcuate furrow 3, and steel ball and liner plate become line or line to be linked to be the contact in face in relative motion, effectively improves steel ball and pulverizes ability to coal, improve productivity ratio; Removable step 4 and arcuate furrow 3 combine, and the function of steel ball is divided into fragmentation and grinding, extend the service life of liner plate; Removable step 4 can be changed after wearing and tearing immediately, reduces production cost.
Obviously, above-described embodiment is only for the utility model example is clearly described, and the restriction not to embodiment.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here exhaustive without the need to also giving all embodiments.And thus the apparent change of amplifying out or variation be still among protection domain of the present utility model.
Claims (3)
1. the energy-conservation liner plate of ball mill, comprises ship type base plate (2), arcuate furrow (3), and the bottom surface of ship type base plate (2) is the arc surface made according to ball mill diameter, it is characterized in that: the structure of described ship type base plate (2) is that two ends are high, middle low; The end face of ship type base plate (2) is provided with some circumferentially uniform arcuate furrows (3), arcuate furrow is provided with fin between (3); The middle part of arcuate furrow (3) is provided with removable step (4), and removable step (4) is connected with ship type base plate (2) by bolt.
2. the energy-conservation liner plate of a kind of ball mill according to claim 1, is characterized in that: the bottom land of described arcuate furrow (3) is the circular arc of indent.
3. the energy-conservation liner plate of a kind of ball mill according to claim 1, is characterized in that: described removable step (4) left end is two-layer ledge structure, and removable step (4) right-hand member is inclined-plane.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420766977.XU CN204294311U (en) | 2014-12-09 | 2014-12-09 | The energy-conservation liner plate of a kind of ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420766977.XU CN204294311U (en) | 2014-12-09 | 2014-12-09 | The energy-conservation liner plate of a kind of ball mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204294311U true CN204294311U (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420766977.XU Active CN204294311U (en) | 2014-12-09 | 2014-12-09 | The energy-conservation liner plate of a kind of ball mill |
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| CN (1) | CN204294311U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036353A (en) * | 2019-12-30 | 2020-04-21 | 攀钢集团矿业有限公司 | Roller structure of ball mill and ball mill |
-
2014
- 2014-12-09 CN CN201420766977.XU patent/CN204294311U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111036353A (en) * | 2019-12-30 | 2020-04-21 | 攀钢集团矿业有限公司 | Roller structure of ball mill and ball mill |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |