A ball mill liner

Abstract

A ball mill liner includes: a plate body and alloy components. The plate body includes a middle plate, with detachably connected connecting plates on both sides of the middle plate, and detachably connected side plates on the outer sides of the connecting plates. Multiple alloy components are located inside the middle plate, connecting plates, and side plates, respectively. Each alloy component includes multiple alloy modules spaced apart along the length of the plate body. Each alloy module includes multiple alloy rods arranged in a rectangular row at intervals, with a gap between the upper end of the alloy rod and the top surface of the plate body. The top surface of the middle plate is a first arc surface, the top surface of the connecting plates has a second arc surface and a transition surface, and the top surface of the side plates has a third arc surface. The transition surface smoothly transitions between the second and third arc surfaces. The lower ends of the alloy rods in the same row along the length of the plate body are all connected to connecting rods, and adjacent connecting rods are connected by crossbars. This design ensures the impact resistance of the liner while also improving its wear resistance, thereby increasing its service life and demonstrating strong practicality.

Description

Technical Field

[0001] This utility model relates to the field of crushing equipment technology, and in particular to a ball mill liner. Background Technology

[0002] Ball mill liners are critical components installed on the inner wall of the ball mill cylinder. They directly bear the impact and friction of the grinding media (steel balls and steel segments) and materials. Therefore, the selection of liners requires a proper balance between wear resistance and impact resistance. Insufficient wear resistance will lead to rapid surface wear, resulting in thinning, shape changes, and even localized perforations. This not only shortens the liner replacement cycle and increases downtime and maintenance costs, but may also cause equipment failure due to liner failure, affecting production continuity. Conversely, insufficient impact toughness will cause the liner to crack or break under significant impact, leading to premature scrapping. Wear resistance and impact toughness are not isolated but rather mutually influential, jointly determining the overall performance of the liner. Increased wear resistance usually implies a decrease in impact toughness, and the two show a negative correlation. Utility Model Content

[0003] In view of the shortcomings of the above-mentioned prior art, this application provides a ball mill liner that improves wear resistance while ensuring the impact resistance of the liner, thereby increasing its service life and making it highly practical.

[0004] To achieve the above objectives, the present invention employs the following technology: A ball mill liner includes: a plate body and an alloy component.

[0005] The plate includes a middle plate, with detachable connecting plates on both sides of the middle plate and detachable side plates on the outer side of the connecting plates. There are multiple alloy components, which are located inside the middle plate, connecting plates and side plates respectively. The alloy components include multiple alloy modules arranged at intervals along the length of the plate. Each alloy module includes multiple alloy rods arranged in a rectangular row at intervals. There is a gap between the upper end of the alloy rod and the top surface of the plate.

[0006] Furthermore, the top surface of the middle plate is a first arc surface, the top surface of the connecting plate is provided with a second arc surface and a transition surface, the top surface of the side plate is provided with a third arc surface, and the transition surface is used to smoothly transition the second arc surface and the third arc surface. The second arc surface has the same diameter as the first arc surface, and the center of the arc surface is facing downwards from the plate body. The center of the third arc surface is located above the plate body.

[0007] Furthermore, the alloy rods in the connecting plate and the side plate are all inclined, and the alloy rods in the connecting plate are located below the second arc surface and the transition surface, respectively.

[0008] Furthermore, multiple first slots are provided on both sides of the middle plate along its length, and multiple first blocks are provided on the inner side of the connecting plate along its length. The first blocks are fitted into the first slots and locked with screws.

[0009] Furthermore, the outer side of the connecting plate is provided with a plurality of spaced second slots along its length, and the inner side of the side plate is provided with a plurality of spaced second blocks along its length. The second blocks are fitted into the second slots and locked with screws.

[0010] Furthermore, the lower ends of the alloy rods in the same column along the length of the plate are all connected to the connecting rods, and adjacent connecting rods are connected by crossbars.

[0011] The beneficial effects of this utility model are as follows: by embedding alloy rods inside the liner, the wear resistance of the liner is improved without reducing its impact resistance, thereby increasing the service life of the liner; the liner is divided into multiple parts, which facilitates the embedding of alloy rods into the liner during casting. Attached Figure Description

[0012] The accompanying drawings described herein are merely illustrative of selected embodiments, not all possible implementations, and are not intended to limit the scope of this invention.

[0013] Figure 1 This is a three-dimensional schematic diagram of the overall structure of an embodiment of this application. Detailed Implementation

[0014] To make the objectives, technical solutions and advantages of the embodiments of this utility model clearer, the implementation methods of this utility model will be described in detail below with reference to the accompanying drawings. However, the embodiments described in this utility model are only some embodiments of this utility model, and not all embodiments.

[0015] like Figure 1 As shown, this example provides a ball mill liner, including: a plate body 1 and an alloy component 2.

[0016] The plate 1 includes a middle plate 11, with detachable connecting plates 12 on both sides of the middle plate 11, and detachable side plates 13 on the outer side of each connecting plate 12. There are multiple alloy components 2, which are located inside the middle plate 11, connecting plates 12 and side plates 13, respectively, dividing the plate 1 into multiple parts to facilitate the insertion of alloy components 2 into the plate 1 during the casting process. The alloy components 2 include multiple alloy modules arranged at intervals along the length of the plate 1. Each alloy module includes multiple alloy rods 21 arranged in a rectangular row at intervals. There is a gap between the upper end of the alloy rods 21 and the top surface of the plate 1. The alloy rods 21 improve the wear resistance of the plate 1 without affecting its impact resistance.

[0017] Specifically, the top surface of the middle plate 11 is a first arc surface, the top surface of the connecting plate 12 is provided with a second arc surface and a transition surface, and the top surface of the side plate 13 is provided with a third arc surface. The transition surface is used to smoothly transition between the second arc surface and the third arc surface. The second arc surface has the same diameter as the first arc surface, and the center of the arc surface is facing downwards from the plate body 1. The center of the third arc surface is located above the plate body 1, so that the entire surface of the plate body 1 presents a wave pattern to improve grinding efficiency.

[0018] Specifically, the alloy rods 21 in the connecting plate 12 and the side plate 13 are all inclined, and the alloy rods 21 in the connecting plate 12 are located below the second arc surface and the transition surface, respectively, so that the alloy rods 21 can withstand more impact and ensure the wear resistance of the plate 1.

[0019] Specifically, the middle plate 11 has multiple first slots 14 on both sides along its length, the connecting plate 12 has multiple spaced first blocks 15 on its inner side along its length, the first blocks 15 are fitted into the first slots 14 and locked with screws, and the connecting plate 12 has multiple spaced second slots 16 on its outer side along its length, and the side plate 13 has multiple spaced second blocks 17 on its inner side along its length, the second blocks 17 are fitted into the second slots 16 and locked with screws, so as to connect the middle plate 11, the connecting plate 12 and the side plate 13 to form a plate body 1.

[0020] Specifically, the lower ends of the alloy rods 21 in the same column along the length of the plate 1 are all connected to the connecting rods 22. Adjacent connecting rods 22 are connected by crossbars 23, so that multiple alloy rods 21 form a whole, which makes it convenient to place them in the casting mold during the casting process, so that the alloy rods 21 can be stably implanted into the plate 1.

[0021] Since the above are merely preferred embodiments of this utility model and are not intended to limit this utility model, it is obvious that those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of the claims of this utility model and their equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A ball mill liner, characterized in that, include: The plate body (1) includes a middle plate (11), both sides of the middle plate (11) are provided with detachable connecting plates (12), and the outer sides of the connecting plates (12) are provided with detachable side plates (13). There are multiple alloy components (2), which are located inside the middle plate (11), the connecting plate (12) and the side plate (13) respectively. The alloy components (2) include multiple alloy modules arranged at intervals along the length direction of the plate (1). Each alloy module includes multiple alloy rods (21) arranged in a rectangular row at intervals. The upper end of each alloy rod (21) has a gap with the top surface of the plate (1).

2. The ball mill liner according to claim 1, characterized in that, The top surface of the intermediate plate (11) is a first arc surface, the top surface of the connecting plate (12) is provided with a second arc surface and a transition surface, the top surface of the side plate (13) is provided with a third arc surface, the transition surface is used to smoothly transition the second arc surface and the third arc surface, the second arc surface has the same diameter as the first arc surface, and the center of the arc surface is facing downwards from the plate body (1), and the center of the third arc surface is located above the plate body (1).

3. The ball mill liner according to claim 2, characterized in that, The alloy rods (21) in the connecting plate (12) and the side plate (13) are both inclined, and the alloy rods (21) in the connecting plate (12) are located below the second arc surface and the transition surface, respectively.

4. The ball mill liner according to claim 1, characterized in that, The middle plate (11) has multiple first slots (14) on both sides along its length direction, and the connecting plate (12) has multiple first blocks (15) arranged at intervals on its inner side along its length direction. The first blocks (15) are fitted into the first slots (14) and locked with screws.

5. The ball mill liner according to claim 1, characterized in that, The connecting plate (12) has a plurality of spaced second slots (16) on its outer side along its length direction, and the side plate (13) has a plurality of spaced second blocks (17) on its inner side along its length direction. The second blocks (17) are fitted into the second slots (16) and locked with screws.

6. The ball mill liner according to claim 1, characterized in that, The lower ends of the alloy rods (21) in the same column along the length of the plate (1) are all connected to the connecting rods (22), and two adjacent connecting rods (22) are connected by a crossbar (23).

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