CN220610671U - Composite lining block for lining of ball mill - Google Patents
Composite lining block for lining of ball mill Download PDFInfo
- Publication number
- CN220610671U CN220610671U CN202322206291.7U CN202322206291U CN220610671U CN 220610671 U CN220610671 U CN 220610671U CN 202322206291 U CN202322206291 U CN 202322206291U CN 220610671 U CN220610671 U CN 220610671U
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- Prior art keywords
- ball mill
- ceramic
- metal frame
- ceramic lining
- lining block
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- 239000002131 composite material Substances 0.000 title claims abstract description 23
- 239000000919 ceramic Substances 0.000 claims abstract description 90
- 239000002184 metal Substances 0.000 claims abstract description 46
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 239000000463 material Substances 0.000 abstract description 16
- 230000000694 effects Effects 0.000 abstract description 6
- 230000002349 favourable effect Effects 0.000 abstract description 3
- 238000000034 method Methods 0.000 description 4
- 238000005299 abrasion Methods 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 239000004567 concrete Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000010304 firing Methods 0.000 description 1
- 230000003116 impacting effect Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Crushing And Grinding (AREA)
Abstract
The composite lining block for the ball mill lining comprises a metal frame framework and ceramic lining blocks embedded in the metal frame framework, wherein the metal frame framework is provided with a plurality of grid holes which are penetrated up and down, each grid hole is embedded with the ceramic lining block, the lower surface of the ceramic lining block is used for being matched with the inner wall of the ball mill, and the upper surface of the ceramic lining block is a working surface facing the center of the ball mill; the side wall of the grid hole in the metal frame framework is higher than the upper surface of the ceramic lining block, and the top of the side wall of the grid hole is provided with a surrounding edge which extends towards the ceramic lining block and wraps the edge of the upper surface of the ceramic lining block. The edge of the ceramic lining block is prevented from being impacted by materials and grinding balls, and the phenomenon that the ceramic lining block is broken at the corners is avoided. And, be higher than the surrounding edge of ceramic pad upper surface and form the step that has the difference in height between the ceramic pad upper surface, this step can play the effect that drives material and grinding ball, is favorable to improving the grinding effect of ball mill.
Description
Technical Field
The utility model relates to a lining of a ball mill, in particular to a composite lining block for the lining of the ball mill.
Background
The ball mill is a key device for crushing materials after the materials are crushed, is suitable for grinding various ores and other materials, and is widely used in the industries of mineral separation, building materials, chemical industry and the like. The main working principle of the ball mill is that materials and grinding balls are brought to fall after being higher in the rotation process of a horizontal cylinder of the ball mill, so that the materials and the grinding balls collide with each other, and the purpose of grinding the materials is realized. In this process, the inner wall of the ball mill needs to bear the impact and friction of the materials and the grinding balls.
The traditional ball mill adopts wear-resistant steel plates as lining plates of the inner wall of the ball mill to improve impact resistance and wear resistance, but the cost of replacing the lining plates after abrasion is high. In order to reduce the cost, a combined lining plate combining metal and wear-resistant ceramic is presented, wherein the wear-resistant ceramic is used as a wear-resistant lining block, and the metal is used as a frame to fix the wear-resistant lining block. Because the shape of the wear-resistant ceramic lining block formed by firing is difficult to perfectly match with the metal frame, a fit clearance exists at the joint of the wear-resistant ceramic lining block and the metal frame, so that the edge of the wear-resistant ceramic lining block is lack of support, and is easy to break under the impact of materials and grinding balls, thereby accelerating the abrasion of the wear-resistant ceramic lining block.
Disclosure of Invention
The utility model aims to overcome the defect that a ceramic lining block is easy to damage by impact, and provides a composite lining block for a lining of a ball mill.
The technical scheme adopted by the utility model for solving the technical problems is as follows: the composite lining block for the ball mill lining comprises a metal frame framework and ceramic lining blocks embedded in the metal frame framework, wherein the metal frame framework is provided with a plurality of grid holes which are penetrated up and down, each grid hole is embedded with the ceramic lining block, the lower surface of the ceramic lining block is used for being matched with the inner wall of the ball mill, and the upper surface of the ceramic lining block is a working surface facing the center of the ball mill; the side wall of the grid hole in the metal frame framework is higher than the upper surface of the ceramic lining block, and the top of the side wall of the grid hole is provided with a surrounding edge which extends towards the ceramic lining block and wraps the edge of the upper surface of the ceramic lining block.
The length of the peripheral edge extending towards the direction of the ceramic lining block is 3-7 mm.
The length of the peripheral edge extending towards the ceramic backing block is 3% -6% of the width of the ceramic backing block.
The thickness of the surrounding edge is 3-6 mm.
The lower surface of the ceramic backing block is paved with a buffer layer with hardness smaller than that of the ceramic backing block.
The buffer layer is paved below the ceramic pad and the metal frame framework.
The metal frame framework is provided with a connecting hole for connecting the inner wall of the ball mill.
The center of the metal frame skeleton is provided with a connecting hole, and four lattice holes for embedding the ceramic backing blocks are formed around the connecting hole.
The upper surface of the ceramic lining block is corrugated, and the top shape of the side wall of the grid hole matched with the ceramic lining block in the metal frame framework is matched with the corrugation of the ceramic lining block.
The inner wall of the lattice hole of the metal frame framework is provided with an inclined plane matched with the ceramic backing block.
The beneficial effects of the utility model are as follows: the top of metal frame skeleton check hole lateral wall can wrap up the edge of ceramic pad upper surface to the surrounding edge that ceramic pad extends, makes the edge of ceramic pad avoid the impact of material and grinding ball, avoids the cracked phenomenon of ceramic pad in the corner. And, be higher than the surrounding edge of ceramic pad upper surface and form the step that has the difference in height between the ceramic pad upper surface, this step can play the effect that drives material and grinding ball, is favorable to improving the grinding effect of ball mill.
Drawings
Fig. 1 is a schematic structural view of a composite pad of the present utility model.
Fig. 2 is a schematic perspective view of a composite pad according to the present utility model.
Fig. 3 is a cross-sectional view of the composite pad of the present utility model.
The marks in the figure: 1. the metal frame framework comprises a metal frame framework body, a ceramic backing block, a grid hole, a surrounding edge, a buffer layer, a connecting hole and an inclined plane, wherein the metal frame framework body comprises a metal frame framework body, a ceramic backing block, a grid hole, a surrounding edge, a buffer layer, a connecting hole and an inclined plane, and the metal frame framework body comprises a metal frame framework body, a connecting hole and.
Detailed Description
The technical scheme of the utility model is clearly and completely described below with reference to the accompanying drawings and the specific embodiments. The specific matters listed in the following examples are not limited to the technical features necessary for solving the technical problems of the technical solutions described in the claims. Meanwhile, the list is only a part of embodiments of the present utility model, but not all embodiments.
As shown in fig. 1, the composite pad for ball mill lining of the present utility model includes a metal frame skeleton 1 and a ceramic pad 2. The ceramic lining block 2 is made of wear-resistant ceramic material, the upper surface of the ceramic lining block is corrugated, and the ceramic lining block is used as a working surface facing the center of the ball mill, and drives materials and grinding balls to move in the running process of the ball mill. The metal frame skeleton 1 is used for fixing the ceramic lining blocks 2 on the inner wall of the ball mill. In the embodiment shown in fig. 1, the metal frame skeleton 1 is square, and has four through holes 3, each of which is embedded with a ceramic pad 2. A connecting hole 6 is arranged in the center of the metal frame skeleton 1, and four lattice holes 3 are arranged around the connecting hole. The composite pad can be fixed to the inner wall of the ball mill by means of bolts passing through the connection holes 6.
The bottoms of the metal frame frameworks 1 are arc-shaped surfaces, so that a plurality of metal frame frameworks 1 can be paved and spliced around the inner wall of the cylinder body of the ball mill to form the ball mill lining. The lower surface of the ceramic lining block 2 is basically flush with the bottom of the metal frame skeleton 1, and is matched with the inner wall of the ball mill after the composite lining block is mounted on the inner wall of the ball mill. The inner wall of the lattice hole 3 of the metal frame framework 1 is provided with an inclined plane 7 matched with the ceramic lining block 2, and the ceramic lining block 2 can be pressed on the inner wall of the ball mill through the inclined plane matching, so that the ceramic lining block 2 is firmly fixed.
The number of the cells 3 in the metal frame skeleton 1 in the present utility model is not limited to four, and the shape thereof is not limited to the square shape shown in fig. 1, and for example, 3 or 6 cells 3 may be provided. The positions of the connecting holes 6 are set according to the shape of the metal frame skeleton 1 and the distribution condition of the lattice holes 3, so that the composite lining blocks can be stably fixed on the inner wall of the ball mill as much as possible.
As shown in fig. 2 and 3, the side walls of the grid holes 3 in the metal frame skeleton 1 are higher than the upper surface of the ceramic backing block 2, the top shapes of the side walls of the grid holes 3 are matched with the corrugation of the ceramic backing block, and surrounding edges 4 are arranged at the top of the side walls of the grid holes 3. The peripheral edge 4 extends towards the ceramic pad 2 and wraps around the edge of the upper surface of the ceramic pad. The peripheral edge 4 can prevent falling grinding balls and materials from impacting the edges of the ceramic pad and avoid the phenomenon that the ceramic pad is broken at the corners. And, because the surrounding edge 4 that sets up is in the top of ceramic pad 2, the thickness of surrounding edge 4 makes it form the step in the top of ceramic pad 2, and the high fall of this step department can play the effect that drives material and grinding ball, is favorable to improving the grinding effect of ball mill. In the embodiment of the application, the length of the peripheral edge 4 extending in the direction of the ceramic pad 2 is 3-7 mm, and is about 3-6% of the width of the ceramic pad (the width in the extending direction of the peripheral edge). The thickness of the surrounding edge 4 is 3-6 mm.
As shown in fig. 3, a buffer layer 5 with hardness smaller than that of the ceramic pad is paved on the lower surface of the ceramic pad 2, and the buffer layer 5 can make up a fit clearance generated by incomplete matching between the shape of the lower surface of the ceramic pad 2 and the inner wall of the ball mill, so that the ceramic pad 2 is prevented from shaking in the running process of the ball mill. And plays a transitional role, and avoids the damage to the inner wall of the ball mill caused by the fact that the ceramic lining blocks 2 are directly contacted with the inner wall of the ball mill. The buffer layer 5 may be formed by paving a mixture such as concrete on the lower surface of the ceramic pad 2, or may be made of other materials capable of achieving the function. In the embodiment shown in fig. 3, the buffer layer 5 is laid below the ceramic pad 2 and the metal frame skeleton 1, and the fit gap between the ceramic pad 2 and the metal frame skeleton 1 can be filled up by the laid buffer layer 5, so that the connection of the two is more stable.
The above description of the specific embodiments is only for aiding in understanding the technical concept of the present utility model and its core idea, and although the technical solution has been described and illustrated using specific preferred embodiments, it should not be construed as limiting the present utility model itself. Workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit of the technology. Such modifications and substitutions are intended to be included within the scope of the present utility model.
Claims (10)
1. A composite backing block for a ball mill liner, characterized by: the ball mill comprises a metal frame skeleton (1) and ceramic lining blocks (2) embedded in the metal frame skeleton (1), wherein the metal frame skeleton (1) is provided with a plurality of through grid holes (3) from top to bottom, each grid hole is embedded with the ceramic lining blocks (2), the lower surface of each ceramic lining block (2) is used for being matched with the inner wall of the ball mill, and the upper surface of each ceramic lining block (2) is a working surface facing the center of the ball mill; the side wall of the grid hole (3) in the metal frame skeleton (1) is higher than the upper surface of the ceramic lining block (2), and the top of the side wall of the grid hole (3) is provided with a surrounding edge (4) which extends to the ceramic lining block (2) and wraps the edge of the upper surface of the ceramic lining block.
2. A composite pad for a ball mill liner as claimed in claim 1, wherein: the length of the peripheral edge (4) extending towards the direction of the ceramic lining block (2) is 3-7 mm.
3. A composite pad for a ball mill liner as claimed in claim 2, wherein: the length of the peripheral edge (4) extending towards the ceramic lining block (2) is 3% -6% of the width of the ceramic lining block.
4. A composite pad for a ball mill liner as claimed in claim 1, wherein: the thickness of the surrounding edge (4) is 3-6 mm.
5. A composite pad for a ball mill liner as claimed in claim 1, wherein: the lower surface of the ceramic backing block (2) is paved with a buffer layer (5) with hardness smaller than that of the ceramic backing block.
6. A composite pad for a ball mill liner as claimed in claim 5, wherein: the buffer layer (5) is paved below the ceramic pad (2) and the metal frame skeleton (1).
7. A composite pad for a ball mill liner as claimed in claim 1, wherein: the metal frame framework (1) is provided with a connecting hole (6) for connecting the inner wall of the ball mill.
8. A composite pad for a ball mill liner as claimed in claim 7, wherein: the center of the metal frame skeleton (1) is provided with a connecting hole (6), and four lattice holes (3) for embedding the ceramic backing blocks (2) are arranged around the connecting hole.
9. A composite pad for a ball mill liner as claimed in claim 1, wherein: the upper surface of the ceramic lining block (2) is corrugated, and the top shape of the side wall of a grid hole (3) matched with the ceramic lining block in the metal frame skeleton (1) is matched with the corrugation of the ceramic lining block.
10. A composite pad for a ball mill liner as claimed in claim 1, wherein: the inner wall of the lattice hole (3) of the metal frame skeleton (1) is provided with an inclined plane (7) matched with the ceramic lining block (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322206291.7U CN220610671U (en) | 2023-08-16 | 2023-08-16 | Composite lining block for lining of ball mill |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322206291.7U CN220610671U (en) | 2023-08-16 | 2023-08-16 | Composite lining block for lining of ball mill |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220610671U true CN220610671U (en) | 2024-03-19 |
Family
ID=90229999
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322206291.7U Active CN220610671U (en) | 2023-08-16 | 2023-08-16 | Composite lining block for lining of ball mill |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220610671U (en) |
-
2023
- 2023-08-16 CN CN202322206291.7U patent/CN220610671U/en active Active
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