High manganese steel lining plate for ball mill
By designing high manganese steel lining for ball mills with split structures and detachable connection components, the problem of high maintenance costs in the prior art is solved, the replaceability and reusability of each component is achieved, and resource waste and maintenance costs are reduced.
Patent Information
- Application Number
- CN202421455557.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-25
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-06-25
AI Technical Summary
The high manganese steel lining plates for existing ball mills are prone to wear when used, resulting in high maintenance costs and it is difficult to replace the first lining plate or the second lining plate separately according to actual needs.
A high manganese steel lining plate for ball mill is designed, adopting a split structure, the first lining plate, the second lining plate and the buffer assembly are connected by a detachable connecting assembly, allowing each component to be replaced as needed without the need to replace the entire lining plate.
With a detachable connection design, maintenance costs are reduced, allowing reuse of individual components, extending service life and reducing resource waste.
Smart Images
Figure CN222984512U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of high manganese steel liners, and particularly relates to a high manganese steel liner for a ball mill. Background Technique
[0002] The high manganese steel liner of the ball mill is used to protect the cylinder body of the ball mill, so that the cylinder body of the ball mill is not directly impacted and rubbed by the grinding medium and the material. At the same time, different forms of high manganese steel liners can be used to adjust the motion state of the grinding medium, so as to enhance the crushing effect of the grinding medium on the material, help improve the grinding efficiency of the mill, increase the output, and reduce the metal consumption.
[0003] The patent document with the publication number of CN214159884U discloses a high manganese steel liner for a ball mill. Through the positioning groove, positioning shaft, shock-absorbing layer and permanent magnet, the first liner is placed on the top of the second liner. The first liner and the second liner are positioned by the positioning shaft and the positioning groove, and then the first liner and the second liner are welded, making the connection between the first liner and the second liner more firm and not easy to loosen. The setting of the shock-absorbing layer can isolate the second liner from the ball mill and reduce the working noise of the ball mill. During the operation of the ball mill, the permanent magnet adsorbs a large number of broken steel ball blocks, increasing the contact area between the steel balls and the first liner, and also increasing the protective layer of the first liner to protect the surface of the liner and increase the wear resistance of the liner surface; through the wave crest and the groove, the steel balls run in the ball mill, first hitting into the groove at the top of the first liner, and the steel balls hit the wave crest, increasing the contact area between the liner and the steel balls, improving the ball-carrying efficiency, and avoiding the steel balls directly hammering the joint position of the liner during the working process, preventing the liner from being impacted and fractured.
[0004] When the upper high manganese steel liner is in use, it needs to be replaced regularly due to easy wear. The first liner and the second liner are directly fixedly connected, resulting in the need to replace the entire high manganese steel liner during replacement, which is inconvenient to replace the first liner or the second liner separately according to actual needs, and the maintenance cost is high. Content of the Utility Model
[0005] The purpose of the utility model is to provide a high manganese steel liner for a ball mill to solve the technical defect of high maintenance cost of the existing high manganese steel liner for a ball mill.
[0006] To achieve the above purpose, the utility model provides the following technical solutions:
[0007] A high manganese steel liner for a ball mill includes a first liner and a second liner made of high manganese steel. The first liner is arranged on the top of the second liner. A buffer assembly in contact with the inner wall surface of the ball mill is arranged at the bottom of the second liner. A connection assembly for realizing detachable connection is jointly arranged among the first liner, the second liner and the buffer assembly. The first liner, the second liner and the buffer assembly are all in an arc-shaped structure.
[0008] The connecting component includes screws, and there are at least four screws distributed in a rectangular array. First through holes for the screws to pass through are respectively formed in the second lining plate and the buffer component, and screw holes adapted to the screws are formed in the first lining plate. The screws sequentially pass through the corresponding first through holes from bottom to top and are threadedly connected to the inner cavities of the corresponding screw holes.
[0009] As a further solution of the present utility model, the first lining plate includes a lining plate main body. A top plate is fixedly connected to the top of the lining plate main body. A receiving groove for placing the second lining plate is formed at the bottom of the lining plate main body. Both the front and rear sides of the receiving groove are open, and the screw holes are formed at the top of the inner cavity of the receiving groove.
[0010] As a further solution of the present utility model, a plurality of annularly and equally spaced wave crests are fixedly connected to the top of the top plate, and grooves are formed between adjacent two wave crests.
[0011] As a preferred solution of the present utility model, the buffer component includes a first rubber pad disposed at the bottom of the second lining plate. The first through holes are formed in the first rubber pad. A counterbore for placing the screw heads is formed at the bottom of the first rubber pad and is communicated with the first through holes. The diameter of the counterbore is larger than that of the first through holes.
[0012] As a further preferred solution of the present utility model, a plurality of equally spaced convex strips are integrally formed on the top of the first rubber pad. Card slots adapted to the convex strips are respectively formed at the bottoms of the second lining plate and the lining plate main body. Both ends of the convex strips are clamped into the card slots at the bottom of the lining plate main body, and the middle parts of the convex strips are clamped into the card slots at the bottom of the second lining plate. The cross sections of the convex strips and the card slots are both circular, and the opening at the bottom of the card slot is smaller than the diameter of the card slot.
[0013] As a preferred solution of the present utility model, a second rubber pad is further disposed in the inner cavity of the receiving groove. The second rubber pad is located on the top of the second lining plate. A plurality of first through holes are formed in the second rubber pad, and the first through holes in the second rubber pad are arranged in one-to-one correspondence with the screws.
[0014] As a further preferred solution of the present utility model, a limiting member is disposed between the second lining plate and the lining plate main body. The limiting member includes limiting columns fixedly connected to the top of the second lining plate. There are at least three limiting columns distributed at equal intervals. Limiting grooves for the limiting columns to be inserted into are formed at the top of the inner cavity of the receiving groove, and second through holes for the limiting columns to pass through are formed in the second rubber pad.
[0015] Compared with the prior art, a high manganese steel lining plate for a ball mill of the present utility model has the following beneficial effects: By adopting a split structure for the first lining plate, the second lining plate and the buffer assembly, and using the connecting assembly to achieve the detachable connection of the first lining plate, the second lining plate and the buffer assembly, subsequent replacement of the first lining plate, the second lining plate or the buffer assembly can be carried out according to actual usage requirements, without replacing the entire high manganese steel lining plate, enabling the first lining plate, the second lining plate and the buffer assembly to be reused, thereby reducing the maintenance cost. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only individual cases of the embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.
[0017] Figure 1 is a schematic structural diagram of an embodiment of the present utility model;
[0018] Figure 2 is a schematic bottom view structural diagram of an embodiment of the present utility model;
[0019] Figure 3 is an exploded schematic three-dimensional structural diagram of an embodiment of the present utility model;
[0020] Figure 4 is an exploded schematic bottom view structural diagram of an embodiment of the present utility model.
[0021] REFERENCE SIGNS:
[0022] 1, first lining plate; 11, lining plate main body; 12, top plate; 121, wave crest; 122, groove; 13, accommodating groove;
[0023] 2, second lining plate; 21, card slot;
[0024] 3, buffer assembly; 31, first rubber pad; 32, counterbore; 33, rib;
[0025] 4, connecting assembly; 41, screw; 42, first through hole; 43, threaded hole;
[0026] 5, limiting post; 6, limiting groove; 7, second rubber pad; 8, second through hole. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0027] In order to make the purpose, technical solution and advantages of the embodiment of the utility model more clear, the embodiment of the utility model is further described in detail below in conjunction with the drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the utility model and are not used to limit the utility model.
[0028] In the description of the embodiments of the present invention, it should be understood that the terms "upper", "lower", "front", "back", "inside", "outside", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they should not be understood as limitations on the embodiments of the present invention.
[0029] In the description of the embodiments of the present invention, it should be noted that, unless otherwise clearly stipulated and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal connection of two components; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present invention can be understood according to specific circumstances.
[0030] See attached Figures 1-4 As shown, an embodiment of the utility model provides a high manganese steel liner for a ball mill, comprising a first liner 1 and a second liner 2 made of high manganese steel.
[0031] The first lining plate 1 is arranged on the top of the second lining plate 2, and the bottom of the second lining plate 2 is provided with a buffer component 3 that contacts the inner wall surface of the ball mill. A connecting component 4 for realizing a detachable connection is commonly provided between the first lining plate 1, the second lining plate 2 and the buffer component 3. The first lining plate 1, the second lining plate 2 and the buffer component 3 all have an arc-shaped structure.
[0032] See also Figure 3 As shown, the connecting component 4 includes screws 41, and there are at least four screws 41 distributed in a rectangular array. The second lining plate 2 and the buffer component 3 are respectively provided with first through holes 42 for the screws 41 to pass through, and the first lining plate 1 is provided with screw holes 43 adapted to the screws 41. The screws 41 pass through the corresponding first through holes 42 from bottom to top in sequence and are threadedly connected to the inner cavities of the corresponding screw holes 43.
[0033] When using the high manganese steel lining plate for the ball mill adopting the above technical solution, by screwing the screw 41, the screw 41 is screwed out from the inner cavity of the screw hole 43, and then the screw 41 is taken out from the inner cavity of the first through hole 42, and the unlocking operation of the first lining plate 1, the second lining plate 2 and the buffer assembly 3 can be completed. At this time, the lining plate main body 11 can be taken upward, so that the lining plate main body 11 drives the top plate 12, the accommodating groove 13 and the limiting groove 6 to move synchronously, the limiting column 5 gradually disengages from the inner cavity of the limiting groove 6, and the clamping groove 21 at the bottom of the lining plate main body 11 disengages from the protruding strip 33, thereby realizing the separation operation of the first lining plate 1 and the second lining plate 2, and the first lining plate 1 can be replaced.
[0034] Take the second rubber pad 7 upward, so that the second rubber pad 7 drives the second through hole 8 to move upward until the second rubber pad 7 disengages from the surface of the limiting column 5, thereby realizing the separation operation of the second lining plate 2 and the second rubber pad 7, and the second rubber pad 7 can be replaced.
[0035] See Figure 3 , 4 As shown in, pull the first rubber pad 31 downward, so that the first rubber pad 31 drives the protruding strip 33 to move synchronously. The protruding strip 33 is squeezed by the inner wall surface of the clamping groove 21 at the bottom of the second lining plate 2 and deforms until the protruding strip 33 disengages from the inner cavity of the clamping groove 21 at the bottom of the second lining plate 2, thereby realizing the separation operation of the second lining plate 2 and the buffer assembly 3, and the second lining plate 2 or the buffer assembly 3 can be replaced.
[0036] See Figure 1 As shown in, in the embodiment of the present invention, the first lining plate 1 includes a lining plate main body 11. The top of the lining plate main body 11 is fixedly connected with a top plate 12. The bottom of the lining plate main body 11 is provided with an accommodating groove 13 for placing the second lining plate 2. The front and rear sides of the accommodating groove 13 are both open. The screw hole 43 is opened at the top of the inner cavity of the accommodating groove 13.
[0037] In order to extend the service life of the first lining plate 1, a plurality of annularly and equidistantly distributed wave crests 121 are fixedly connected to the top of the top plate 12. A groove 122 is formed between two adjacent wave crests 121. By using the cooperation of the wave crests 121 and the grooves 122, the contact area between the top plate 12 and the steel balls in the ball mill can be increased, and the wear degree can be dispersed.
[0038] To prevent the screw head of the screw 41 from directly contacting the inner wall surface of the ball mill, the buffer assembly 3 includes a first rubber pad 31 provided at the bottom of the second lining plate 2. A first through hole 42 is formed in the first rubber pad 31. A counterbore 32 communicating with the first through hole 42 and for placing the screw head of the screw 41 is formed at the bottom of the first rubber pad 31. The diameter of the counterbore 32 is larger than that of the first through hole 42. The first rubber pad 31 can isolate the second lining plate 2 from the inner wall surface of the ball mill, which helps to reduce the noise during the operation of the ball mill. The screw head of the screw 41 can be hidden through the counterbore 32.
[0039] To improve the connection effect between the first rubber pad 31 and the second lining plate 2, a plurality of equally spaced convex strips 33 are integrally formed on the top of the first rubber pad 31. Claw slots 21 adapted to the convex strips 33 are respectively formed at the bottom of the claw slot 21 and the lining plate main body 11. Both ends of the convex strip 33 are clamped into the claw slot 21 at the bottom of the lining plate main body 11, and the middle part of the convex strip 33 is clamped into the claw slot 21 at the bottom of the second lining plate 2. The cross sections of the convex strip 33 and the claw slot 21 are both circular. The opening at the bottom of the claw slot 21 is smaller than the diameter of the claw slot 21, so that the convex strip 33 can be stably clamped into the inner cavity of the claw slot 21 and prevent the phenomenon of easy detachment.
[0040] To extend the service life of the second lining plate 2, a second rubber pad 7 having the same shape as the second lining plate 2 is further provided in the inner cavity of the accommodating groove 13. The second rubber pad 7 is located on the top of the second lining plate 2. A plurality of first through holes 42 are formed in the second rubber pad 7, and the first through holes 42 in the second rubber pad 7 are arranged in one-to-one correspondence with the screws 41. The second rubber pad 7 can separate the first lining plate 1 from the second lining plate 2. When the first lining plate 1 is placed on the second lining plate 2, the second rubber pad 7 can reduce the impact force between the first lining plate 1 and the second lining plate 2 and play a buffering role.
[0041] To facilitate the hole alignment operation between the screw 41 and the first through hole 42, a limiting member is provided between the second lining plate 2 and the lining plate main body 11. The limiting member includes a limiting post 5 fixedly connected to the top of the second lining plate 2. At least three limiting posts 5 are equally spaced. A limiting groove 6 for inserting the limiting post 5 is formed at the top of the inner cavity of the accommodating groove 13. A second through hole 8 for the limiting post 5 to pass through is formed in the second rubber pad 7. By the cooperation of the limiting post 5 and the limiting groove 6, a preliminary limiting effect can be achieved on the lining plate main body 11 and the second lining plate 2.
[0042] In the embodiment of the present utility model, the first lining plate 1, the second lining plate 2 and the buffer assembly 3 are adopted with a split structure, and the connecting assembly 4 is used to realize the detachable connection of the first lining plate 1, the second lining plate 2 and the buffer assembly 3, so that the first lining plate 1, the second lining plate 2 or the buffer assembly 3 can be replaced correspondingly according to the actual use requirements subsequently, without replacing the whole high manganese steel lining plate, enabling the first lining plate 1, the second lining plate 2 and the buffer assembly 3 to be reused, thereby reducing the waste of resources and the maintenance cost.
[0043] The basic principles of the present invention have been shown and described above. The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. The descriptions in the above embodiments and the specification only illustrate the principles of the present invention. Without departing from the scope of the present invention, any modifications, equivalent replacements, improvements, etc. made within the spirit and scope of the present invention shall be included in the protection scope of the present invention.
Claims
1. A high manganese steel liner for a ball mill, comprising a first liner (1) and a second liner (2) made of high manganese steel, characterized in that: The first liner (1) is arranged on the top of the second liner (2); a buffer component (3) in contact with the inner wall surface of the ball mill is arranged at the bottom of the second liner (2); a connecting component (4) for realizing detachable connection is arranged between the first liner (1), the second liner (2) and the buffer component (3); the first liner (1), the second liner (2) and the buffer component (3) are all in an arc-shaped structure; The connecting assembly (4) comprises screws (41), wherein at least four of the screws (41) are distributed in a rectangular array; the second lining plate (2) and the buffer assembly (3) are respectively provided with first through holes (42) for the screws (41) to pass through; the first lining plate (1) is provided with screw holes (43) adapted to the screws (41); the screws (41) pass through the corresponding first through holes (42) in sequence from bottom to top and are threadedly connected to the inner cavities of the corresponding screw holes (43).
2. The high manganese steel liner for a ball mill according to claim 1, characterized in that: The first lining plate (1) comprises a lining plate body (11), the top of which is fixedly connected to a top plate (12), the bottom of which is provided with a receiving groove (13) for accommodating the second lining plate (2), the front and rear sides of the receiving groove (13) being open, and the screw hole (43) being provided at the top of the inner cavity of the receiving groove (13).
3. The high manganese steel liner for a ball mill according to claim 2, characterized in that: A plurality of annular wave crests (121) distributed equidistantly are fixedly connected to the top of the top plate (12), and a groove (122) is formed between two adjacent wave crests (121).
4. The high manganese steel liner for a ball mill according to claim 1, characterized in that: The buffer assembly (3) comprises a first rubber pad (31) arranged at the bottom of the second lining plate (2); the first through hole (42) is formed on the first rubber pad (31); a countersunk hole (32) connected to the first through hole (42) and used for accommodating the screw head of the screw (41) is formed at the bottom of the first rubber pad (31); the diameter of the countersunk hole (32) is larger than the diameter of the first through hole (42).
5. The high manganese steel liner for a ball mill according to claim 4, characterized in that: The top of the first rubber pad (31) is integrally formed with a plurality of equidistantly distributed convex strips (33); the bottoms of the second lining plate (2) and the lining plate body (11) are respectively provided with slots (21) adapted to the convex strips (33); both ends of the convex strip (33) are snapped into the slots (21) at the bottom of the lining plate body (11); the middle of the convex strip (33) is snapped into the slots (21) at the bottom of the second lining plate (2); the cross-sections of the convex strip (33) and the slots (21) are both circular; and the opening at the bottom of the slots (21) is smaller than the diameter of the slots (21).
6. The high manganese steel liner for a ball mill according to claim 2, characterized in that: The inner cavity of the accommodating groove (13) is further provided with a second rubber pad (7), the second rubber pad (7) being located on the top of the second lining plate (2), a plurality of first through holes (42) being provided on the second rubber pad (7), and the first through holes (42) on the second rubber pad (7) being arranged in a one-to-one correspondence with the screws (41).
7. The high manganese steel liner for a ball mill according to claim 6, characterized in that: A limiting member is provided between the second lining plate (2) and the lining plate body (11), the limiting member comprising a limiting column (5) fixedly connected to the top of the second lining plate (2), at least three limiting columns (5) being distributed at equal intervals, a limiting groove (6) for inserting the limiting column (5) is provided at the top of the inner cavity of the accommodating groove (13), and a second through hole (8) for the limiting column (5) to pass through is provided on the second rubber pad (7).