Composite wear-resistant ball mill lining plate

Abstract

The utility model discloses a composite wear-resistant ball mill lining plate which comprises a silencing plate and a ball mill lining plate body, the upper surface of the silencing plate is fixedly connected with a reinforcing plate, a groove is formed in the reinforcing plate, the bottom inner wall of the groove is fixedly connected with a first buffer plate, the upper surface of the first buffer plate is fixedly connected with a damper, and the upper surface of the first buffer plate is fixedly connected with a second buffer plate. The upper surface of the first buffer plate is fixedly connected with a spring, the upper end of the damper is fixedly connected with a second buffer plate, the inner surface of a groove is slidably connected with a sliding block, and the ball mill lining plate comprises a lining layer, a sound insulation layer, a heat insulation layer, an impact-resistant layer and a wear-resistant layer. The noise reduction plate and the ball mill lining plate do not need to be replaced together during replacement, the replacement cost is reduced, force borne by the springs and the dampers is buffered and transmitted to the reinforcing plate through the buffer plate, the reinforcing plate is stressed more evenly, damage to the reinforcing plate is reduced, and the service life of the reinforcing plate is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of liners, and particularly relates to a composite wear-resistant ball mill liner. Background Art

[0002] A ball mill is an important crushing device widely used in industries such as ore processing, building materials production, and chemical engineering. The working principle of the ball mill is that through the rotation of the cylinder, the internal grinding media are continuously thrown up, dropped, and rolled, impacting, grinding, and rubbing the materials, so as to crush the materials to the required particle size. During the operation of the ball mill, the internal grinding media and liners are prone to wear and need to be replaced regularly, increasing the cost.

[0003] After retrieval, it is found that the technical solution provided by the utility model with the application number CN202222313279.1 includes an inner liner body and a mounting plate. At the bottom of the mounting plate, mounting slide rails are fixedly arranged in pairs. At the top of the mounting plate, a sound-absorbing plate is fixedly arranged. A plurality of through grooves are formed at the top of the sound-absorbing plate. At the bottom of the inner wall of the through groove, a buffer spring is fixedly arranged. At the top of the buffer spring, a connecting block is fixedly arranged. At the top of the connecting block, a movable rod is fixedly arranged. The movable rod is movably connected to the inner wall of the through groove. The top of the movable rod is fixed to the bottom of the inner liner body. This device can buffer and protect it, improving its service life. However, the impact force generated by the strong impact on the liner of the ball mill is cushioned by the shock-absorbing spring. The pressure and vibration of the shock-absorbing springs on multiple grooves will be directly transmitted to the sound-absorbing plate through the shock-absorbing spring. The connection part between the sound-absorbing plate and the spring is subjected to more concentrated pressure, and the sound-absorbing plate bears uneven loads, accelerating the aging and damage of the sound-absorbing plate. Moreover, the liner of the ball mill is prone to wear during use and needs to be replaced regularly. The bottom of the liner of this ball mill is connected to the movable rod, and the movable rod is connected to the buffer spring arranged on the sound-absorbing plate. When replacing the liner of the ball mill, the sound-absorbing plate also needs to be replaced together, increasing the replacement cost. Summary of the Utility Model

[0004] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and provide a composite wear-resistant ball mill liner. By arranging a reinforcing plate on the sound-absorbing plate, when the liner of the ball mill needs to be replaced, the liner of the ball mill is taken out from the inner groove of the reinforcing plate. The replacement of this structure of the liner of the ball mill is convenient. When replacing, it is not necessary to replace the sound-absorbing plate and the liner of the ball mill together, reducing the replacement cost. And buffer plates are arranged at both ends of the spring and the damper. When the buffer plates cooperate with multiple groups of springs and dampers, due to the upward elasticity of the spring, the slider on the liner can be in close contact with the buffer plate, making the structure more stable. At the same time, the force borne by multiple groups of springs and dampers is buffered and transmitted to the reinforcing plate through the buffer plate, making the force on the reinforcing plate more uniform, reducing the damage to the reinforcing plate, and prolonging the service life of the reinforcing plate.

[0005] To achieve the above object, the present utility model further provides a composite wear-resistant ball mill lining board as described above, including: a sound insulation board and a ball mill lining board. A reinforcing plate is fixedly connected to the upper surface of the sound insulation board. A groove is provided inside the reinforcing plate. A first buffer plate is fixedly connected to the bottom inner wall of the groove. A damper is fixedly connected to the upper surface of the first buffer plate. A spring is fixedly connected to the upper surface of the first buffer plate. The upper end of the damper is fixedly connected to a second buffer plate. A slider is slidably connected to the inner surface of the groove. The ball mill lining board includes an inner lining layer, a sound insulation layer, a heat insulation layer, an impact-resistant layer and a wear-resistant layer. The upper surface of the inner lining layer is fixedly connected to the sound insulation layer. The upper surface of the sound insulation layer is fixedly connected to the heat insulation layer. Wear-resistant bumps are fixedly connected to the upper surface of the wear-resistant layer.

[0006] According to the described composite wear-resistant ball mill lining board, the upper end of the spring is fixedly connected to the second buffer plate. The number of the dampers and springs is multiple and they are distributed in a rectangle. Through the action of multiple groups of springs and dampers, when the ball mill lining board is subjected to an impact force, it has a shock-absorbing effect on the ball mill lining board.

[0007] According to the described composite wear-resistant ball mill lining board, the damper passes through the inside of the spring. The side surface of the second buffer plate is slidably connected to the groove. The second buffer plate can transfer the impact force received by the ball mill lining board to the spring and the damper more evenly, avoiding damage caused by the concentration of force resulting in excessive stress on individual springs or dampers.

[0008] According to the described composite wear-resistant ball mill lining board, the upper surface of the heat insulation layer is fixedly connected to the impact-resistant layer. The upper surface of the impact-resistant layer is fixedly connected to the wear-resistant layer.

[0009] According to the described composite wear-resistant ball mill lining board, the number of the sliders is two and they are distributed left and right. The upper surface of the slider is fixedly connected to the inner lining layer. By inserting the sliders on the ball mill lining board into the inside of the reinforcing plate, when replacing the ball mill lining board, the ball mill can be conveniently taken out and put in, and there is no need to replace the sound insulation board and the reinforcing plate, reducing the replacement cost.

[0010] According to the described composite wear-resistant ball mill lining board, the material of the inner lining layer is polyurethane, and the material of the sound insulation layer is polyester fiber sound-absorbing cotton. Polyurethane has good wear resistance, certain elasticity and impact resistance. The sound insulation layer can effectively reduce the sound generated during the use of the ball mill.

[0011] According to the described composite wear-resistant ball mill lining board, the material of the heat insulation layer is ceramic fiber, and the material of the impact-resistant layer is duplex steel. Ceramic fiber has the advantages of light weight, high temperature resistance, good heat insulation performance, etc., and can effectively block heat transfer.

[0012] According to the described composite wear-resistant ball mill liner, the material of the wear-resistant layer is high manganese steel, and the material of the wear-resistant bumps is high chromium cast iron. High chromium cast iron has a high chromium content, high hardness, excellent wear resistance, and can effectively resist wear.

[0013] Additional aspects and advantages of the present utility model will be given in part in the following description, become apparent in part from the following description, or be understood through the practice of the present utility model. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present utility model will be further described below in conjunction with the drawings and embodiments;

[0015] Figure 1 is a schematic diagram of the overall structure of a composite wear-resistant ball mill liner of the present utility model;

[0016] Figure 2 is a schematic diagram of a partial structure of a composite wear-resistant ball mill liner of the present utility model;

[0017] Figure 3 is Figure 2 a schematic enlarged view of the structure at A in

[0018] Figure 4 is a cross-sectional view of the ball mill liner of a composite wear-resistant ball mill liner of the present utility model.

[0019] LEGEND DESCRIPTION:

[0020] 1, sound insulation board; 2, reinforcement board; 3, groove; 4, first buffer board; 5, damper; 6, spring; 7, second buffer board; 8, slider; 9, ball mill liner; 10, inner lining layer; 11, sound insulation layer; 12, heat insulation layer; 13, impact-resistant layer; 14, wear-resistant layer; 15, wear-resistant bumps. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description in the text part of the specification, enabling people to intuitively and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0022] Refer to Figures 1-4, an embodiment of the utility model provides a composite wear-resistant ball mill liner, comprising: a sound insulation plate 1 and a ball mill liner 9. The upper surface of the sound insulation plate 1 is fixedly connected with a reinforcing plate 2. A groove 3 is arranged inside the reinforcing plate 2. A slider 8 is slidably connected to the inner surface of the groove 3. The upper surface of the slider 8 is fixedly connected with an inner lining layer 10. When it is necessary to replace the ball mill liner 9, the ball mill liner 9 can be taken out of the reinforcing plate 2 through the slider 8. When replacing, there is no need to replace the sound insulation plate 1 and the reinforcing plate 2, reducing the replacement cost. The bottom inner wall of the groove 3 is fixedly connected with a first buffer plate 4. The first buffer plate 4 can effectively reduce the impact force on the spring 6 and the damper 5, reducing the concentrated pressure at the bottom from being transmitted to the reinforcing plate 2, making the force received by the reinforcing plate 2 more uniform and prolonging the service life of the reinforcing plate 2. The upper surface of the first buffer plate 4 is fixedly connected with a damper 5, and the upper surface of the first buffer plate 4 is fixedly connected with a spring 6. By the combined use of the damper 5 and the spring 6, the impact force generated by the ball mill liner 9 can be damped. The upper end of the damper 5 is fixedly connected with a second buffer plate 7. The second buffer plate 7 has a buffering effect and can transmit the impact force received by the ball mill liner 9 more evenly to the spring 6 and the damper 5, avoiding the excessive force on individual springs 6 or dampers 5 caused by the concentration of force and resulting in damage. The ball mill liner 9 comprises an inner lining layer 10, a sound insulation layer 11, a heat insulation layer 12, an impact-resistant layer 13 and a wear-resistant layer 14. The upper surface of the inner lining layer 10 is fixedly connected with the sound insulation layer 11. The material of the inner lining layer 10 is polyurethane. The material of the sound insulation layer 11 is polyester fiber sound-absorbing cotton. The sound insulation layer 11 can effectively reduce the sound generated during the use of the ball mill. The upper surface of the sound insulation layer 11 is fixedly connected with the heat insulation layer 12. The material of the heat insulation layer 12 is ceramic fiber. Ceramic fiber has the advantages of light weight, high temperature resistance and good heat insulation performance, and can effectively block heat transfer. The upper surface of the heat insulation layer 12 is fixedly connected with the impact-resistant layer 13. The material of the impact-resistant layer 13 is duplex steel. The upper surface of the impact-resistant layer 13 is fixedly connected with the wear-resistant layer 14. The material of the wear-resistant layer 14 is high manganese steel. The upper surface of the wear-resistant layer 14 is fixedly connected with wear-resistant bumps 15. The material of the wear-resistant bumps 15 is high chromium cast iron. High chromium cast iron has a relatively high chromium content, high hardness and excellent wear resistance, and can effectively resist wear. The upper end of the spring 6 is fixedly connected with the second buffer plate 7. The number of the dampers 5 and the springs 6 is multiple and they are distributed in a rectangle. The setting of multiple springs 6 and dampers 5 makes the damping effect better. The damper 5 passes through the inside of the spring 6. The side surface of the second buffer plate 7 is slidably connected with the groove 3. The number of the sliders 8 is two and they are distributed left and right.

[0023] Working principle: When the ball mill liner 9 needs to be replaced, the slider 8 on one side of the ball mill liner 9 can be taken out from the groove 3, and a new ball mill liner 9 can be inserted into the groove 3 of the reinforcement plate 2 through the slider 8. During use, the impact force received by the ball mill liner 9 is transmitted to the slider 8. The slider 8 slides in the groove 3, and the impact force received by the slider 8 is buffered by the second buffer plate 7. Under the pressure of the slider 8 and the second buffer plate 7, the spring 6 is driven to compress. Under the action of the damper 5, the rebound speed of the spring 6 is slowed down, thereby playing a role in shock absorption. The pressure received by the damper 5 and the spring 6 is evenly transmitted to the reinforcement plate 2 through the first buffer plate 4, reducing the local stress concentration at the bottom of the spring 6 and the damper 5 and the damage to the reinforcement plate 2 caused by uneven stress. This structure does not require replacing the sound insulation plate 1 together with the ball mill liner 9 when replacing the ball mill liner 9, reducing the replacement cost. Moreover, the first buffer plate 4 and the second buffer plate 7 are provided at both ends of the spring 6 and the damper 5. When the first buffer plate 4, the second buffer plate 7 and multiple groups of springs 6 and dampers 5 work together, due to the upward elasticity of the spring 6, the slider 8 on the liner can be in close contact with the first buffer plate 4 and the second buffer plate 7, making the structure more stable. At the same time, the force borne by multiple groups of springs 6 and dampers 5 is buffered and transmitted to the reinforcement plate 2 through the first buffer plate 4, making the force on the reinforcement plate 2 more uniform and reducing the damage to the reinforcement plate 2 and prolonging the service life of the reinforcement plate 2.

[0024] The embodiments of the present invention have been described in detail above in conjunction with the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those of ordinary skill in the art in the said technical field, various changes can be made without departing from the gist of the present invention.

Claims

1. A composite wear-resistant ball mill liner, characterized in that: include: A muffler plate (1) and a ball mill liner (9), wherein the upper surface of the muffler plate (1) is fixedly connected to a reinforcing plate (2), a groove (3) is provided inside the reinforcing plate (2), a first buffer plate (4) is fixedly connected to the bottom inner wall of the groove (3), a damper (5) is fixedly connected to the upper surface of the first buffer plate (4), a spring (6) is fixedly connected to the upper surface of the first buffer plate (4), a second buffer plate (7) is fixedly connected to the upper end of the damper (5), and a slider (8) is slidably connected to the inner surface of the groove (3); The ball mill liner (9) comprises an inner lining layer (10), a sound insulation layer (11), a heat insulation layer (12), an impact-resistant layer (13) and a wear-resistant layer (14); the upper surface of the inner lining layer (10) is fixedly connected to the sound insulation layer (11), the upper surface of the sound insulation layer (11) is fixedly connected to the heat insulation layer (12), and the upper surface of the wear-resistant layer (14) is fixedly connected with a wear-resistant protrusion (15).

2. A composite wear-resistant ball mill liner according to claim 1, characterized in that: The upper end of the spring (6) is fixedly connected to the second buffer plate (7), and the dampers (5) and springs (6) are multiple in number and distributed in a rectangular shape.

3. A composite wear-resistant ball mill liner according to claim 1, characterized in that: The damper (5) passes through the interior of the spring (6), and the side surface of the second buffer plate (7) is slidably connected to the groove (3).

4. The composite wear-resistant ball mill liner according to claim 1, characterized in that: The upper surface of the heat-insulating layer (12) is fixedly connected to the impact-resistant layer (13), and the upper surface of the impact-resistant layer (13) is fixedly connected to the wear-resistant layer (14).

5. The composite wear-resistant ball mill liner according to claim 1, characterized in that: The number of the sliding blocks (8) is two and they are distributed on the left and right sides, and the upper surface of the sliding blocks (8) is fixedly connected to the inner lining layer (10).

6. The composite wear-resistant ball mill liner according to claim 1, characterized in that: The material of the inner lining layer (10) is polyurethane, and the material of the sound insulation layer (11) is polyester fiber sound-absorbing cotton.

7. The composite wear-resistant ball mill liner according to claim 1, characterized in that: The material of the heat insulation layer (12) is ceramic fiber, and the material of the impact-resistant layer (13) is dual-phase steel.

8. The composite wear-resistant ball mill liner according to claim 1, characterized in that: The material of the wear-resistant layer (14) is high manganese steel, and the material of the wear-resistant protrusion (15) is high chromium cast iron.

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