High-manganese medium-chromium steel ball mill lining plate

Abstract

The utility model discloses a high manganese medium chromium steel ball mill lining plate relates to ball mill lining plate technical field, including main plate body, main plate body front side and rear side both are provided with receiving groove, two receiving groove inside both are provided with change seat, change seat upper surface outer side end both is provided with stop protrusion, change seat upper surface outer side end both is provided with stop protrusion, change seat upper surface outer side end both is provided with stop protrusion, change seat upper surface outer side end both is provided with stop protrusion, change seat upper surface outer side end both is provided with change seat upper surface outer side end both is provided with stop protrusion. The upper end of the material blocking protrusion extends out of the upper surface of the main plate body, a fixing groove is formed in the middle position between the main plate body and the replacement base, a fixing plate is connected into the fixing groove in an inserted mode, and a material blocking strip is arranged on the upper surface of the fixing plate. A fixing screw rod is arranged at the position, corresponding to the containing groove, of the lower surface of the fixing plate, the lower end of the fixing screw rod penetrates through the replacement base, the wear-resisting degree of the whole structure is improved, the problem that the fixing firmness of the lining plate is reduced due to bolt wear is solved, and the material blocking structure can be replaced according to the specific wear degree.

Description

Technical Field

[0001] This utility model relates to the technical field of ball mill liners, specifically to a high-manganese medium-chromium steel ball mill liner. Background Technology

[0002] Ball mill liners are critical wear-resistant components inside the ball mill, primarily used to protect the mill cylinder from direct impact and abrasion by the grinding media and materials. They are typically made of high-manganese steel, alloy steel, rubber, or composite materials. The liners are bolted to the inner wall of the cylinder and feature diverse structural designs, such as corrugated, stepped, and grooved shapes, to optimize grinding efficiency and improve material flowability and energy utilization. During operation, the liners effectively extend equipment life and reduce maintenance costs. Furthermore, their shape design controls the trajectory of the steel balls, influencing the grinding effect and output. Traditionally, liners are fixed with bolts. However, due to the inconsistency in strength and wear resistance between the bolts and the high-manganese medium-chromium steel, bolt wear occurs, affecting the liner's fixation and subsequent removal. Utility Model Content

[0003] The purpose of this utility model is to provide a high-manganese medium-chromium steel ball mill liner to solve the problem mentioned in the background art that traditional liners are usually fixed with bolts. Due to the inconsistency in strength and wear resistance between the bolts and the high-manganese medium-chromium steel, the bolts wear, affecting the liner's fixing firmness and subsequent liner disassembly.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a high-manganese medium-chromium steel ball mill liner, comprising a main body, with storage grooves on both the front and rear sides of the main body, and a replacement seat inside each of the two storage grooves. A material-blocking protrusion is provided on the outer end of the upper surface of each replacement seat, with the upper end of the protrusion extending beyond the upper surface of the main body. A fixing groove is provided in the middle between the main body and the replacement seat, and a fixing plate is interlocked inside the fixing groove. A material-blocking strip is provided on the upper surface of the fixing plate, and a fixing screw is provided on the lower surface of the fixing plate at a position corresponding to the storage groove. The lower end of the fixing screw penetrates the replacement seat.

[0005] Preferably, the lower ends of both replacement seats penetrate the storage slot and are correspondingly disposed on the lower surface of the main board. The lower outer ends of both storage slots are provided with limiting seats. The lower outer ends of the lower surface of the replacement seat are provided with limiting slots at positions corresponding to the limiting seats. The limiting seats and the limiting slots are spliced ​​together.

[0006] Preferably, a limiting hole is formed on the upper surface of the main body at the middle position inside the fixing groove, and a limiting pin is provided on the lower surface of the fixing plate at the position corresponding to the limiting hole, and the limiting pin is spliced ​​with the limiting hole.

[0007] Preferably, a through hole is provided on the replacement seat at the middle position inside the fixing groove, corresponding to the fixing screw, and the fixing screw passes through the through hole through the replacement seat.

[0008] Preferably, the upper surface of the baffle protrusion is correspondingly arranged to the upper surface of the baffle strip.

[0009] Compared with the prior art, the beneficial effects of this utility model are: replacing the traditional liner structure that is usually fixed with bolts, integrating the bolts with the baffle strip, and designing the baffle protrusion as a detachable structure, so that the outer surface strength and wear resistance of the liner main structure in contact with the material inside the ball mill are consistent, improving the overall wear resistance of the structure, avoiding the problem of reduced liner fixing firmness caused by bolt wear, and the baffle structure can be replaced according to the specific wear degree. Attached Figure Description

[0010] Figure 1 This is an isometric view of the main structure of this utility model;

[0011] Figure 2 This is an isometric sectional view of the main structure of this utility model;

[0012] Figure 3 This is an isometric exploded view of the main structure of this utility model;

[0013] Figure 4 This is a front sectional view of the main structure of this utility model;

[0014] Figure 5 This is a top view of the main structure of this utility model.

[0015] In the diagram: 1-Main board body, 2-Storage slot, 3-Replacement seat, 4-Blocking protrusion, 5-Fixing slot, 6-Fixing plate, 7-Blocking strip, 8-Fixing screw, 9-Limit seat, 10-Limiting slot, 11-Limiting hole, 12-Limiting pin, 13-Limiting pin. Detailed Implementation

[0016] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0017] Please see Figure 1-5This utility model provides a high-manganese medium-chromium steel ball mill liner, including a main body 1. The main body 1 has a storage groove 2 on both the front and rear sides. The storage groove 2 is provided with a replacement seat 3. The replacement seat 3 has a material-blocking protrusion 4 on the outer end of its upper surface. The upper end of the material-blocking protrusion 4 extends to the outside of the upper surface of the main body 1. A fixing groove 5 is provided in the middle between the main body 1 and the replacement seat 3. A fixing plate 6 is spliced ​​and connected inside the fixing groove 5. The upper surface of the fixing plate 6 is provided with a material-blocking strip 7. The lower surface of the fixing plate 6 is provided with a fixing screw 8 at the position corresponding to the storage groove 2. The lower end of the fixing screw 8 passes through the replacement seat 3.

[0018] In use, firstly, the replacement seat 3 is installed on the main body plate 1 by interlocking with the storage slot 2. Then, the fixing plate 6 is installed on the main body 1 and the replacement seat 3 by interlocking with the fixing slot 5. The fixing screw 8 on the fixing plate 6 passes through the replacement seat 3 and the ball mill housing and is fixed to them with bolts, thus fixing the entire liner structure to the inner surface of the ball mill housing. The fixing screw 8 is hidden inside the fixing plate 6, preventing contact with the material inside the ball mill. A material-blocking protrusion 4 is provided on the seat 3, and a material-blocking strip 7 is provided on the fixing plate 6 to improve the friction ability against materials. The worn material-blocking strip 7 can be replaced by disassembling the fixing plate 6, and the worn material-blocking protrusion 4 can be replaced by disassembling the fixing plate 6 and replacing the seat 3. The main body 1, the replacement seat 3, the material-blocking protrusion 4, the fixing plate 6 and the material-blocking strip 7 are all made of high-manganese medium-chromium steel. In addition to iron, its chemical composition mainly includes manganese, chromium, carbon and other micro-alloying elements. By precisely controlling the content ratio of each element, the material performance is optimized.

[0019] The lower ends of both replacement seats 3 penetrate the storage slots 2 and are correspondingly arranged on the lower surface of the main board body 1. The lower outer ends of both storage slots 2 are provided with limiting seats 9. The lower outer ends of the lower surface of the replacement seat 3 are provided with limiting grooves 10 at the positions corresponding to the limiting seats 9. The limiting seats 9 and the limiting grooves 10 are spliced ​​together. The limiting seats 9 are set on the outside of the storage slots 2 to enhance the strength of the main board body 1. The limiting grooves 10 are set on the outside of the replacement seats 3. The position of the replacement seats 3 is limited by the splicing connection between the limiting seats 9 and the limiting grooves 10.

[0020] A limiting hole 11 is formed on the upper surface of the main body 1 and in the middle of the inside of the fixing groove 5. A limiting pin 12 is provided on the lower surface of the fixing plate 6 at the position corresponding to the limiting hole 11. The limiting pin 12 is connected to the limiting hole 11. Through the connection between the limiting pin 12 and the limiting hole 11, the position between the fixing plate 6 and the main body 1 is limited, thereby limiting the position between the fixing groove 5 and the main body 1.

[0021] A through hole 13 is provided on the replacement seat 3 at the middle position inside the fixing groove 5, corresponding to the fixing screw 8. The fixing screw 8 passes through the replacement seat 3 through the through hole 13. The fixing screw 8 and the through hole 13 are connected to limit the position between the fixing groove 5 and the main body 1.

[0022] The upper surface of the material-blocking protrusion 4 is correspondingly arranged with the upper surface of the material-blocking strip 7. The grinding ability of the material is improved by setting the material-blocking protrusion 4 and the material-blocking strip 7.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-manganese, medium-chromium steel ball mill liner, characterized in that: The system includes a main board body (1), with storage slots (2) on both the front and rear sides of the main board body (1). Each of the two storage slots (2) has a replacement seat (3) inside. Each replacement seat (3) has a baffle protrusion (4) on the outer side of its upper surface. The upper end of the baffle protrusion (4) extends to the outside of the upper surface of the main board body (1). A fixing slot (5) is provided in the middle between the main board body (1) and the replacement seat (3). A fixing plate (6) is inserted into the fixing slot (5). A baffle strip (7) is provided on the upper surface of the fixing plate (6). A fixing screw (8) is provided on the lower surface of the fixing plate (6) at the position corresponding to the storage slot (2). The lower end of the fixing screw (8) passes through the replacement seat (3).

2. The high-manganese medium-chromium steel ball mill liner according to claim 1, characterized in that: The lower ends of the two replacement seats (3) are both through the storage slot (2) and are correspondingly arranged on the lower surface of the main body (1). The lower outer ends of the two storage slots (2) are provided with limiting seats (9). The lower outer ends of the lower surface of the replacement seat (3) and the positions corresponding to the limiting seats (9) are provided with limiting grooves (10). The limiting seats (9) and the limiting grooves (10) are spliced ​​together.

3. The high-manganese medium-chromium steel ball mill liner according to claim 1, characterized in that: A limiting hole (11) is provided on the upper surface of the main body (1) and in the middle of the inside of the fixing groove (5). A limiting pin (12) is provided on the lower surface of the fixing plate (6) at the position corresponding to the limiting hole (11). The limiting pin (12) is spliced ​​and connected to the limiting hole (11).

4. The high-manganese medium-chromium steel ball mill liner according to claim 1, characterized in that: A through hole (13) is provided on the replacement seat (3) at the middle position inside the fixing groove (5) corresponding to the fixing screw (8), and the fixing screw (8) passes through the replacement seat (3) through the through hole (13).

5. The high-manganese medium-chromium steel ball mill liner according to claim 1, characterized in that: The upper surface of the baffle protrusion (4) is correspondingly arranged with the upper surface of the baffle strip (7).

Images