Lining plate structure of large ball mill

Abstract

The utility model discloses a large-scale ball mill lining plate structure, which relates to the technical field of ball milling equipment, and comprises a main plate body, the main plate body is a downwards sunken arc-shaped plate structure, and the middle position of the main plate body is downwards sunken to be provided with a connecting groove. A connecting groove is formed in the upper end of the main plate body, a first working face and a second working face are arranged on the upper surface of the main plate body and located on the two sides of the connecting groove respectively, material blocking strips are arranged on the upper surface of the first working face and the upper surface of the second working face, a connecting plate is arranged at the position, corresponding to the connecting groove, of the upper end of the main plate body, and a material blocking face is arranged on the upper surface of the connecting plate; connecting screws are arranged on the front side, the rear side and the middle position of the lower end of the connecting plate, the lower ends of the connecting screws extend to the position below the main plate body, abrasion caused by material impact to bolts is avoided, when the lining plate is replaced in the later period, the lining plate is detached by loosening nuts on the screws, the lining plate is more convenient to detach, and the service life of the lining plate is prolonged. And the lining plate replacement construction efficiency is ensured.

Description

Technical Field

[0001] This utility model relates to the field of ball mill equipment technology, specifically to a large ball mill liner structure. Background Technology

[0002] Large ball mills are heavy-duty grinding equipment widely used in mining, building materials, and chemical industries. They are mainly used to grind hard materials such as ores and cement raw materials into fine powder. Their core structure includes a large-diameter cylinder, liners, grinding media, and a drive unit. Large ball mills are characterized by large throughput, stable operation, and strong adaptability, meeting the needs of continuous and large-scale production. They are key equipment in mineral processing and industrial grinding processes. The liners are the main structure protecting the ball mill cylinder, preventing it from being impacted by the grinding structure and materials, and also adjusting the movement trajectory of the materials inside the mill. Traditional ball mill liners are usually fixed with bolts, which are subject to wear from material impacts. Later, when replacing the liners, disassembly is difficult, affecting the efficiency of the liner replacement process. Utility Model Content

[0003] The purpose of this utility model is to provide a large ball mill liner structure to solve the problems mentioned in the background art, which are that traditional ball mill liners are usually fixed by bolts, the bolts are worn by the impact of materials, and the liner is difficult to disassemble when replacing the liner later, thus affecting the efficiency of the liner replacement construction.

[0004] To achieve the above objectives, this utility model provides the following technical solution: a large ball mill liner structure, including a main body, the main body being a downwardly recessed arc-shaped plate structure, a connecting groove being recessed in the middle of the main body, a first working surface and a second working surface being respectively provided on the upper surface of the main body and on both sides of the connecting groove, a baffle strip being provided on the upper surface of both the first working surface and the second working surface, a connecting plate being provided at the upper end of the main body and at a position corresponding to the connecting groove, a baffle surface being provided on the upper surface of the connecting plate, and connecting screws being provided at the front, rear, and middle positions of the lower end of the connecting plate, with the lower end of the connecting screws extending below the main body.

[0005] Preferably, the upper surface of the first working surface and the upper surface of the second working surface are located in the same arc surface, and the lower surface arc surface of the main body is concentrically arranged with the upper surface arc surface of the first working surface and the upper surface arc surface of the second working surface.

[0006] Preferably, a through hole is provided at the lower end of the main board body at a position corresponding to the middle position of the connecting groove, and the connecting screw passes through the main board body through the through hole.

[0007] Preferably, the upper end of the connecting screw is connected to the connecting plate by threads and reinforced by screw glue.

[0008] Preferably, the left and right sides of the motherboard body point to the center of the lower surface arc of the motherboard body.

[0009] Compared with the prior art, the beneficial effects of this utility model are: it replaces the traditional ball mill liner structure that is usually fixed by bolts, integrates the fixing screw and the baffle surface and separates them from the main body, avoiding wear on the bolts caused by material impact. When replacing the liner later, the liner can be disassembled by loosening the nut on the screw, making the liner disassembly more convenient and ensuring the efficiency of liner replacement construction. 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 body, 2-Connecting groove, 3-Working surface 1, 4-Working surface 1, 5-Blocking strip, 6-Connecting plate, 7-Blocking surface, 8-Connecting screw, 9-Through hole. 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 large ball mill liner structure, including a main body 1, which is a downwardly recessed arc-shaped plate structure. A connecting groove 2 is recessed in the middle of the main body 1. A first working surface 3 and a second working surface 4 are respectively provided on the upper surface of the main body 1 and on both sides of the connecting groove 2. A baffle strip 5 is provided on the upper surface of both the first working surface 3 and the second working surface 4. A connecting plate 6 is provided at the upper end of the main body 1 and at the position corresponding to the connecting groove 2. A baffle surface 7 is provided on the upper surface of the connecting plate 6. Connecting screws 8 are provided at the front, rear and middle positions of the lower end of the connecting plate 6. The lower end of the connecting screws 8 extends below the main body 1.

[0018] In use, the connecting plate 6 is pre-connected to the inside of the connecting groove 2 on the main body 1, so that the connecting screw 8 extends to the bottom of the main body 1. The entire liner structure is then hoisted to the installation position, so that the connecting screw 8 passes through the side wall of the ball mill cylinder and is connected to the thread of the connecting screw 8 by a nut, thus fixing the entire liner structure inside the ball mill cylinder. A baffle surface 7 is set on the inner side of the connecting plate 6 to block the material and grinding balls. Baffle strips 5 are set on the first working surface 3 and the second working surface 4 of the main body 1 to further block the material and grinding balls and improve the grinding effect. After long-term use, when the baffle surface 7 is worn, the main body 1 can be retained, the connecting screw 8 can be loosened, and the connecting plate 6 and the baffle surface 7 can be replaced. When the baffle strip 5 is worn, the connecting plate 6 and the baffle surface 7 can be retained, the connecting screw 8 can be loosened, and the main body 1 can be replaced.

[0019] The upper surface of the first working surface 3 and the upper surface of the second working surface 4 are located in the same arc surface. The lower surface arc surface of the main body 1 is concentrically set with the upper surface arc surface of the first working surface 3 and the upper surface arc surface of the second working surface 4, so that the overall thickness of the liner is consistent and the curvature is set to correspond with the ball mill cylinder, ensuring the fit of the liner installation. The baffle strip 5 and the baffle surface 7 extend beyond the inner surface of the overall liner, and the protruding baffle strip 5 and the baffle surface 7 improve the baffle effect.

[0020] A through hole 9 is provided at the lower end of the main body 1, corresponding to the middle position of the connecting groove 2. The connecting screw 8 passes through the through hole 9 and penetrates the main body 1. The connecting screw 8 drives the connecting plate 6 to clamp and fix the main body 1 inside the ball mill cylinder.

[0021] The upper end of the connecting screw 8 is connected to the connecting plate 6 by threads and reinforced with screw glue to prevent the connecting screw 8 from becoming loose from the connecting plate 6 when the nut on the connecting screw 8 is loosened later.

[0022] The left and right sides of the main body 1 point to the center of the lower surface arc of the main body 1, so that adjacent main bodies 1 can be spliced ​​on the inner surface of the ball mill cylinder, thereby increasing the protection range of the liner for the inner surface of the ball mill cylinder.

[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 large-scale ball mill liner structure, characterized by: The system includes a main body (1), which is a downwardly recessed arc-shaped plate structure. A connecting groove (2) is provided in the middle of the main body (1). A first working surface (3) and a second working surface (4) are provided on the upper surface of the main body (1) and on both sides of the connecting groove (2). A baffle strip (5) is provided on the upper surface of both the first working surface (3) and the second working surface (4). A connecting plate (6) is provided at the upper end of the main body (1) and at the position corresponding to the connecting groove (2). A baffle surface (7) is provided on the upper surface of the connecting plate (6). A connecting screw (8) is provided at the front, rear and middle positions of the lower end of the connecting plate (6). The lower end of the connecting screw (8) extends to the bottom of the main body (1).

2. A large-scale ball mill liner structure according to claim 1, characterized in that: The upper surface of the first working surface (3) and the upper surface of the second working surface (4) are located in the same arc surface. The lower surface arc surface of the main body (1) is concentrically set with the upper surface arc surface of the first working surface (3) and the upper surface arc surface of the second working surface (4).

3. A large-scale ball mill liner structure according to claim 1, characterized in that: A through hole (9) is provided at the lower end of the main board body (1) at the position corresponding to the middle position of the connecting groove (2), and the connecting screw (8) passes through the main board body (1) through the through hole (9).

4. A large scale ball mill liner structure according to claim 1, characterized in that: The upper end of the connecting screw (8) is connected to the connecting plate (6) by threads and reinforced by screw glue.

5. A large scale ball mill liner structure according to claim 1, characterized in that: The left and right sides of the main board (1) point to the center of the lower surface arc of the main board (1).

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