Anti-wear ball mill lining plate structure in high-titanium slag grinding process

Abstract

The utility model relates to ball mill equipment technical field, concretely is high titanium slag grinding process anti -wear ball mill lining structure, including machine body, the inner wall of machine body is paved with a plurality of lining, and the lining includes base and movable seat, and the movable seat is tightly arranged with damping block between the base, is set up with the cover of sleeve cavity and is installed on the base, the bottom of movable seat is equipped with the boss, the boss is set in the sleeve cavity, and the bottom of boss is provided with a plurality of springs. This high titanium slag grinding process anti -wear ball mill lining structure, when the lining is hit, the damping block can dissipate part of the impact energy through its deformation, the spring can further buffer the impact force through compression and rebound, avoid the impact force completely by the rigidity of the lining, reduce the wear and tear of the lining due to rigid impact, and the movable seat can be slightly moved along the sleeve cavity of the base, cooperate the effect of the damping block and the spring, further disperse the impact force, avoid the local wear and tear of the lining due to stress concentration.

Description

Technical Field

[0001] This utility model relates to the field of ball mill equipment technology, specifically to a ball mill liner structure for wear prevention during the grinding process of high titanium slag. Background Technology

[0002] High-titanium slag, a key raw material in the titanium industry, requires ball mills for particle size reduction during grinding. During ball mill operation, the liner is a core component. It adheres to the inner wall of the mill cylinder, directly contacting the high-titanium slag material and grinding steel balls, providing protection for the mill's inner wall. Simultaneously, in conjunction with the falling and rolling of the steel balls, it assists in the impact crushing and grinding of the high-titanium slag, making it a crucial basic component ensuring the stable progress of the high-titanium slag grinding process.

[0003] Utility model patent CN220780629U discloses a liner for a ball mill and a ball mill including the liner. The liner and the ball mill include a liner body with multiple obliquely arranged grooves on its upper surface, a screw hole, a connecting part at its front end, and a recessed platform at its rear end that matches the connecting part. This utility model uses a tongue-and-groove joint structure where the recessed platform of one liner and the connecting part of another liner form a mortise and tenon joint, solving the problem of coarse particles entering the gap between the two liners. This reduces the long-term residence of coarse particles in the gap. With each rotation of the mill, as the centrifugal force increases, the frequency of coarse particles entering the gap decreases or is avoided, resulting in high grinding efficiency. Furthermore, it is easy to install, has a simple structure, good sealing effect, and a long service life.

[0004] The ball mill liner and the ball mill including the liner are described. The liner is directly and rigidly connected to the mill cylinder. When steel balls and high-titanium slag materials impact the liner, the impact force is completely borne by the liner body and directly transmitted to the connection part. The impact force cannot be dispersed or dissipated, resulting in the liner being in a high-frequency rigid impact state for a long time, which accelerates the wear of the liner body and the connection part. In view of this, we propose a wear-resistant ball mill liner structure for the high-titanium slag grinding process. Utility Model Content

[0005] The purpose of this invention is to provide a wear-resistant ball mill liner structure for high-titanium slag grinding, so as to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A ball mill liner structure for wear prevention during high titanium slag grinding includes a machine body, on which several liners are laid and installed. Each liner includes a base fixed to the inner wall of the machine body by bolts and a movable seat sleeved in the base and slidably connected to the base. A damping block is provided between the movable seat and the base to abut against each other.

[0008] The base has a cavity on its top surface and a cover on its top. The bottom of the movable seat has a protrusion that fits inside the cavity. The movable seat passes through the cover and extends outward from the base. The bottom surface of the movable seat has an inner cavity. The top of the damping block fits inside the inner cavity, and the bottom of the damping block abuts against the base. Several springs are provided between the outer periphery of the bottom surface of the protrusion and the base.

[0009] Preferably, the main body of the machine body is a hollow cylindrical structure, the bottom surface of the base is an arc-shaped surface, and the bottom surface of the base is attached to the inner wall of the cylindrical body and fixedly connected by bolts.

[0010] In this setup, the hollow cylindrical structure is adapted to the rotary grinding requirements of the ball mill, providing grinding space for high-titanium slag; the arc surface ensures a tight fit between the base and the inner wall of the machine, improving connection stability, and the bolt fixing facilitates base installation and subsequent replacement.

[0011] Preferably, the cavity has a cuboid structure, and the center of the cover has a through groove. The cover covers the opening of the cavity and is fixedly connected to the base with bolts. The groove opening size is smaller than the opening size of the cavity.

[0012] Preferably, a sealing ring is embedded in the inner wall of the sleeve groove, and the sealing ring is used to fill the gap between the sleeve groove and the sleeve cover;

[0013] In these two settings, the cuboid cavity restricts the rotation of the boss, ensuring that it moves only in the height direction; the sleeve groove provides a through channel for the movable seat, and the groove size design can limit the upper limit of the boss's movement through the sleeve cover; the sealing ring enhances the sealing performance, prevents high titanium slag dust from entering the sleeve cavity, avoids wear or jamming of internal components, and the bolt connection facilitates the disassembly and maintenance of the sleeve cover.

[0014] Preferably, a groove is formed at the center of the bottom of the cavity, and the bottom end of the damping block is embedded in the groove;

[0015] In this configuration, the groove provides positioning space for the bottom of the damping block, preventing the damping block from shifting when subjected to force, ensuring its stability between the movable seat and the base, and guaranteeing the continuous effectiveness of the cushioning effect.

[0016] Preferably, the boss is confined within the sleeve cavity by the sleeve cover, and the boss is movable within the sleeve cavity along the height direction of the sleeve cavity;

[0017] In this design, the cover restricts the protrusion from coming out of the sleeve cavity, and the vertical movement space allows the protrusion to compress the buffer component downwards when impacted, thus initially dissipating the impact energy.

[0018] Preferably, a plurality of sleeve holes are provided at the outer peripheral edge of the bottom surface of the protrusion, and the spring is sleeved in the sleeve holes. The top end of the spring abuts against the bottom of the sleeve hole, and the bottom end of the spring abuts against the bottom of the sleeve cavity. The spring is in a compressed state.

[0019] In this configuration, the sleeve provides installation and positioning space for the spring, preventing it from shifting when compressed and rebounding; the two ends abut against each other, ensuring the spring is always under force, thus improving the impact response speed; the pre-compression state gives the spring initial elasticity, which can cope with smaller impacts and facilitates the reset of the movable seat. At the same time, the spring can absorb some impact energy when compressed, reducing damage to components.

[0020] Preferably, the top wall of the inner cavity is provided with a number of downwardly protruding cone blocks in a rectangular array. The cone blocks have a frustum-shaped structure that is larger at the top and smaller at the bottom. The damping block is a cuboid structure made of rubber material. The top of the damping block has a number of concave cavities. The number of concave cavities is equal to the number of cone blocks and their positions correspond one-to-one. The cone blocks are inserted into the corresponding concave cavities and abut against the cavity wall of the concave cavity.

[0021] In this configuration, the rectangular array of convex cones ensures uniform force application, preventing excessive localized stress on the damping block; the frustum-shaped structure increases the contact area and facilitates insertion into the cavity; the rubber damping block dissipates impact energy using its own properties; the cavity and convex cones work together to improve the tightness of the connection, ensuring that the movement of the moving seat is synchronously transmitted to the damping block, and uniform compression can improve the energy dissipation efficiency of the damping block.

[0022] Compared with the prior art, the beneficial effects of this utility model are:

[0023] 1. The wear-resistant ball mill liner structure in the high titanium slag grinding process, through the combination of damping block and spring, allows the damping block to dissipate part of the impact energy through its own deformation when the liner is impacted, and the spring to further buffer the impact force through compression and rebound, so as to avoid the impact force being completely borne by the rigidity of the liner and reduce the wear of the liner caused by rigid impact.

[0024] 2. The wear-resistant ball mill liner structure during the high-titanium slag grinding process has a sliding connection structure between the movable seat and the base. When the liner is impacted, the movable seat can move slightly along the base cavity. With the help of the damping block and the spring, the impact force is further dispersed, and the wear of the liner is prevented from being accelerated due to local stress concentration.

[0025] 3. The wear-resistant ball mill liner structure during the high-titanium slag grinding process, through the combination of the convex cone block and the concave cavity, increases the contact area between the movable seat and the damping block. The impact force can be evenly transmitted to the damping block through the convex cone block, avoiding excessive local stress on the damping block and premature failure, ensuring that the buffer structure can play a long-term role, and indirectly reducing the overall wear of the liner. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0027] Figure 2 This is a schematic diagram of the installation of the lining plate in this utility model;

[0028] Figure 3 This is a schematic diagram of the structure of the liner plate in this utility model;

[0029] Figure 4 This is an exploded view of the lining plate in this utility model;

[0030] Figure 5 This is an exploded view of the base in this utility model;

[0031] Figure 6 This is a schematic diagram of the bottom structure of the movable seat in this utility model;

[0032] The meanings of the labels in the diagram are as follows:

[0033] 100. Body;

[0034] 200, Liner plate; 210, Base; 211, Cavity; 212, Cover; 213, Groove; 214, Sealing ring; 215, Recess; 220, Movable seat; 221, convex seat; 222, Inner cavity; 223, Convex block; 224, Sleeve hole; 225, Spring; 230, Damping block; 231, Concave cavity. Detailed Implementation

[0035] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. 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.

[0036] Please see Figures 1-6The ball mill liner structure for wear prevention during high-titanium slag grinding includes a body 100, on which several liners 200 are laid and installed. The liners 200 can directly contact the high-titanium slag and grinding steel balls, avoiding direct wear on the inner wall of the body 100 and extending the service life of the body 100. The liner 200 includes a base 210 fixed to the inner wall of the body 100 by bolts and a movable seat 220 sleeved in the base 210 and slidably connected to the base 210. The base 210 provides an installation foundation for the movable seat 220. The sliding connection allows the movable seat 220 to undergo adaptive displacement when subjected to impact, reducing local stress concentration. The main body of the machine body 100 is a hollow cylindrical structure, which is adapted to the rotational grinding requirements of the ball mill and provides sufficient grinding space for high titanium slag. The bottom surface of the base 210 is arc-shaped. The bottom surface of the base 210 is attached to the inner wall of the cylindrical body 100 and is fixedly connected by bolts. The arc-shaped design allows the base 210 to fit more tightly with the inner wall of the machine body 100, improving the connection stability. The bolt fixing facilitates the installation and later replacement of the base 210.

[0037] like Figures 3-6 As shown, in this utility model, a cavity 211 is provided on the top surface of the base 210. The cavity 211 provides a space for the protrusion 221 of the movable seat 220 and initially limits the range of motion of the protrusion 221. The bottom end of the movable seat 220 is provided with a protrusion 221, which is fitted into the cavity 211. The cooperation between the protrusion 221 and the cavity 211 prevents the movable seat 220 from detaching from the base 210, ensuring structural integrity. A cover 212 is installed on the top of the base 210. The cover 212 can further limit the protrusion 221, preventing it from falling out of the cavity 211. The cavity 211 has a cuboid structure, which restricts the rotation of the protrusion 221, ensuring the stability of the protrusion. 221 moves only along the height direction of the sleeve cavity 211, improving the stability of the structure's movement; the sleeve cover 212 has a through-hole 213 in the middle, which provides a through channel for the movable seat 220, allowing the movable seat 220 to extend from the base 210 to contact the grinding material; the sleeve cover 212 covers the cavity opening of the sleeve cavity 211 and is fixedly connected to the base 210 with bolts, which facilitates the disassembly of the sleeve cover 212 and makes it convenient for later maintenance of the internal components of the sleeve cavity 211; the movable seat 220 passes through the sleeve cover 212 through the 213 and extends outward from the base 210, and the extended movable seat 220 can directly withstand the impact of high titanium slag and grinding steel balls, avoiding direct impact wear on the base 210.

[0038] Specifically, the groove size of the sleeve 213 is smaller than the cavity size of the sleeve cavity 211, so that the boss 221 is restricted within the sleeve cavity 211 by the sleeve cover 212. This size design can precisely limit the upper limit of the movement of the boss 221 through the blocking effect of the sleeve cover 212, preventing the boss 221 from coming out of the sleeve cavity 211. The boss 221 can move along the height direction of the sleeve cavity 211 within the sleeve cavity 211. The space for movement in the height direction allows the boss 221 to compress the buffer component downward when it is impacted, thereby achieving the initial dissipation of impact energy.

[0039] like Figures 4-6 As shown, further, an inner cavity 222 is provided at the bottom surface of the movable seat 220, which provides a space for the top of the damping block 230, making the connection between the damping block 230 and the movable seat 220 tighter; several springs 225 are provided between the outer peripheral edge of the bottom surface of the protrusion 221 and the base 210. The springs 225 can be compressed when the movable seat 220 moves downward under impact, and absorb part of the impact energy through elastic deformation, reducing the damage to the movable seat 220 and the base 210 caused by the impact. Several sleeve holes 224 are provided on the outer periphery of the bottom surface of the boss 221. The sleeve holes 224 provide installation and positioning space for the spring 225 to prevent the spring 225 from shifting during compression and rebound. The spring 225 is sleeved in the sleeve hole 224, with the top end of the spring 225 abutting against the bottom of the sleeve hole 224 and the bottom end of the spring 225 abutting against the bottom of the cavity 211. The installation method of abutting at both ends can ensure that the spring 225 is always under force, improving the response speed to impact. The spring 225 is in a compressed state. The pre-compression state can give the spring 225 initial elastic force, which can produce a buffering effect when the movable seat 220 is subjected to a small impact, and at the same time facilitate the movable seat 220 to return to its original position after the impact.

[0040] like Figure 5 As shown, in addition, a sealing ring 214 is embedded on the inner wall of the sleeve groove 213. The sealing ring 214 can enhance the sealing between the sleeve groove 213 and the movable seat 220. The sealing ring 214 is used to fill the gap between the sleeve groove 213 and the sleeve cover 212. The gap filling can prevent the high titanium slag dust generated during the grinding process from entering the sleeve cavity 211 and avoid the dust from causing wear or jamming of the internal parts of the sleeve cavity 211.

[0041] like Figure 4As shown, it is worth noting that a damping block 230 is tightly abutted between the movable seat 220 and the base 210. The damping block 230 can dissipate impact energy through its own deformation, forming a double buffer with the spring 225, further reducing the impact on the liner 200. The top of the damping block 230 is fitted inside the inner cavity 222. This fitted fit can improve the connection stability between the damping block 230 and the movable seat 220, ensuring that the impact force of the movable seat 220 can be effectively transmitted to the damping block 230. A groove 215 is provided at the center of the bottom of the cavity 211. The groove 215 provides positioning space for the bottom end of the damping block 230, preventing the damping block 230 from shifting when subjected to force. The bottom end of the damping block 230 is embedded in the groove 215, and the bottom of the damping block 230 abuts against the base 210. This embedded fit and bottom abutment can keep the damping block 230 stable between the movable seat 220 and the base 210, ensuring that the buffering effect is continuously effective.

[0042] like Figure 4 and Figure 6 As shown, it is worth noting that the top wall of the inner cavity 222 is provided with several downwardly protruding cone blocks 223 in a rectangular array. The rectangular array distribution can make the force exerted by the cone blocks 223 on the damping block 230 more uniform, avoiding excessive local stress on the damping block 230. The cone blocks 223 have a frustum-shaped structure that is larger at the top and smaller at the bottom. The frustum-shaped structure can increase the contact area between the cone blocks 223 and the damping block 230, and at the same time facilitate the insertion of the cone blocks 223 into the cavity 231 of the damping block 230. The damping block 230 is a cuboid structure made of rubber material. Rubber material has good elasticity and damping characteristics, which is suitable for the dissipation of impact energy. The structure facilitates installation with the sleeve cavity 211 and the inner cavity 222. The top of the damping block 230 has several recesses 231. The recesses 231 cooperate with the convex cone blocks 223, which can improve the tightness of the connection between the damping block 230 and the movable seat 220, and ensure that the displacement of the movable seat 220 can be synchronously transmitted to the damping block 230. The number of recesses 231 and the positions of the convex cone blocks 223 are equal and correspond one-to-one. The convex cone blocks 223 are inserted into the corresponding recesses 231 and abut against the cavity wall of the recesses 231. The one-to-one abutment with the cavity wall can make the compression of the damping block 230 by the convex cone blocks 223 more uniform and improve the energy dissipation efficiency of the damping block 230.

[0043] In this embodiment, the wear-resistant ball mill liner structure used in the high-titanium slag grinding process operates as follows: First, after the ball mill starts, the machine body 100 rotates together with the liner 200, and the movable seat 220 directly contacts the high-titanium slag and grinding steel balls, bearing the impact and grinding action. Then, when the movable seat 220 moves downward under impact, the protrusion 221 at its bottom end moves downward along the height direction of the sleeve cavity 211, and the sleeve hole 224 on the bottom surface of the protrusion 221 compresses the spring 225, further compressing the spring 225 and absorbing part of the impact energy. Next, the movable seat 220 moves downward. At the same time, the convex cone block 223 at the top of the inner cavity 222 squeezes the damping block 230, causing the damping block 230 to deform. The remaining impact energy is dissipated through the damping characteristics of the rubber material, and the bottom end of the damping block 230 is embedded in the groove 215 to maintain a stable position. Finally, when the impact force weakens, the spring 225 rebounds due to its own elasticity, pushing the convex seat 221 and the movable seat 220 to reset. The damping block 230 also returns to its original deformation, waiting for the next impact buffer. Meanwhile, the sealing ring 214 prevents dust from entering the sleeve cavity 211, ensuring the stable operation of the internal components.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely preferred examples and are not intended to limit the utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A ball mill liner structure for wear prevention during high-titanium slag grinding, comprising a body (100), characterized in that: The inner wall of the body (100) is covered with several lining plates (200). The lining plate (200) includes a base (210) fixed to the inner wall of the body (100) by bolts and a movable seat (220) sleeved in the base (210) and slidably connected to the base (210). A damping block (230) is provided between the movable seat (220) and the base (210). The base (210) has a cavity (211) on its top surface and a cover (212) on its top. The movable seat (220) has a boss (221) at its bottom end. The boss (221) is fitted inside the cavity (211). The movable seat (220) passes through the cover (212) and extends outward from the base (210). The movable seat (220) has an inner cavity (222) on its bottom surface. The top of the damping block (230) is fitted inside the inner cavity (222). The bottom of the damping block (230) abuts against the base (210). Several springs (225) are provided between the outer periphery of the bottom surface of the boss (221) and the base (210).

2. The ball mill liner structure for wear prevention during high-titanium slag grinding according to claim 1, characterized in that: The main body of the machine body (100) is a hollow cylindrical structure, and the bottom surface of the base (210) is an arc surface. The bottom surface of the base (210) is attached to the inner wall of the machine body (100) and fixedly connected by bolts.

3. The ball mill liner structure for wear prevention during high-titanium slag grinding according to claim 2, characterized in that: The cavity (211) has a cuboid structure. The cover (212) has a through groove (213) in the middle. The cover (212) covers the cavity opening of the cavity (211) and is fixedly connected to the base (210) with bolts. The groove size of the groove (213) is smaller than the cavity opening size of the cavity (211).

4. The ball mill liner structure for wear prevention during high-titanium slag grinding according to claim 3, characterized in that: A sealing ring (214) is embedded on the inner wall of the sleeve groove (213), and the sealing ring (214) is used to fill the gap between the sleeve groove (213) and the sleeve cover (212).

5. The ball mill liner structure for wear prevention during high-titanium slag grinding according to claim 1, characterized in that: A groove (215) is provided at the center of the bottom of the cavity (211), and the bottom end of the damping block (230) is embedded in the groove (215).

6. The ball mill liner structure for wear prevention during high-titanium slag grinding according to claim 1, characterized in that: The protrusion (221) is confined within the cavity (211) by the cover (212), and the protrusion (221) is able to move within the cavity (211) along the height direction of the cavity (211).

7. The ball mill liner structure for wear prevention during high-titanium slag grinding according to claim 1, characterized in that: The outer periphery of the bottom surface of the protrusion (221) is provided with several sleeve holes (224). The spring (225) is sleeved in the sleeve hole (224). The top end of the spring (225) abuts against the bottom of the sleeve hole (224), and the bottom end of the spring (225) abuts against the bottom of the cavity (211). The spring (225) is in a compressed state.

8. The ball mill liner structure for wear prevention during high-titanium slag grinding according to claim 1, characterized in that: The top wall of the inner cavity (222) is provided with a number of downward protruding cone blocks (223) in a rectangular array. The cone blocks (223) have a frustum-shaped structure with a larger top and a smaller bottom. The damping block (230) is a cuboid structure made of rubber material. The top of the damping block (230) has a number of recesses (231). The number of recesses (231) is equal to that of the cone blocks (223) and their positions correspond one-to-one. The cone blocks (223) are inserted into the corresponding recesses (231) and abut against the cavity wall of the recesses (231).

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