Efficient wear-resistant lining plate for cement plant ball mill

Abstract

The utility model relates to the technical field of lining plate design discloses a cement plant ball mill high -efficient wear -resistant lining plate, including support plate frame, the support plate frame is fan -shaped support shape, a plurality of position corresponding installation slot are seted up in the support plate frame both sides support inner wall, a plurality of partition plates are installed to the installation slot inner wall through fastening assembly, recess no.

Description

Technical Field

[0001] This utility model relates to the field of liner design technology, and in particular to a high-efficiency wear-resistant liner for a ball mill in a cement plant. Background Technology

[0002] Ball mills are essential equipment in cement plant production processes, used for grinding raw materials and finished cement. Ball mills pulverize materials through the interaction of steel balls and abrasive particles within a rotating cylinder, and are typically used for the fine grinding of minerals and other hard materials.

[0003] Existing ball mill liners in cement plants mostly use a two-hole fixing method, which results in insufficient stability in the connection between the liner and the support. During ball mill operation, the liner is prone to loosening or even falling off due to impact. Some liners lack a reinforced wear-resistant structure on their surface, resulting in weak impact and wear resistance, short service life, and difficulty in meeting the protection and grinding requirements of ball mills during long-term high-efficiency operation. In order to address this technical problem, this application proposes a high-efficiency wear-resistant liner for ball mills in cement plants. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing ball mills, which are prone to loosening or even falling off due to impact during operation. This invention proposes a high-efficiency wear-resistant liner for cement plant ball mills. By positioning the protruding plate in the positioning assembly with double rows of three holes, the wear-resistant and impact-bearing liner body is correspondingly modified and fixed by three sets of positioning bolts and mating holes. Combined with the fitting and limiting of groove one and groove two, the connection stability between the liner body and the support plate frame and partition plate is significantly improved, preventing the liner from loosening during ball mill operation. Furthermore, the outer wall of the liner body has diamond-shaped raised patterns, enhancing surface wear resistance and adapting to the impact environment during grinding.

[0005] To achieve the above objectives, the present invention provides the following technical solution: A high-efficiency wear-resistant liner for a cement plant ball mill includes a support frame, which is fan-shaped. Several corresponding mounting slots are formed on the inner walls of the two sides of the support frame. Several partition plates are mounted on the inner walls of the mounting slots via fastening components. A second groove is formed on the opposite side of each pair of adjacent partition plates. A first groove is formed on the inner wall of one side of the arc-shaped support frame. A liner body is embedded in the inner walls of adjacent first and second grooves. The outer wall of the liner body is fixed to the partition plates via positioning components.

[0006] Furthermore, two combined insert plates are fixedly connected to the outer wall of one side of the support plate frame, and two combined slots are opened on the outer wall of the other side of the support plate frame. The inner wall shape of the combined slot matches the outer wall shape of the combined insert plate. A limit bolt is threadedly installed on the inner wall of the combined slot, and a through hole matching the limit bolt is opened on the inner wall of the combined insert plate.

[0007] Furthermore, the fastening assembly includes a mounting plate embedded in the inner wall of the mounting groove, the outer wall of the mounting plate being fixedly connected to the outer wall of the partition plate, a fastening bolt being threaded on the inner wall of the mounting plate, and threaded holes matching the shape of the fastening bolts being opened on the outer wall of the support plate bracket.

[0008] Furthermore, the outer wall of the liner body is uniformly covered with diamond-shaped ridges to enhance the surface wear resistance of the liner body.

[0009] Furthermore, the positioning component includes protruding plates fixedly connected to both sides of the outer wall of the liner body. The inner wall of the protruding plate has three sets of mating holes, and positioning bolts are threadedly installed on the inner wall of each protruding plate through the mating holes.

[0010] Furthermore, a threaded groove is provided at the middle of one outer end of the positioning bolt, and a protective cap is threaded onto the inner wall of the threaded groove.

[0011] Furthermore, a hexagonal groove is provided on the outer side of the threaded groove to facilitate the rotation of the positioning bolt.

[0012] This utility model has the following beneficial effects: 1. In this utility model, by positioning the plate body of the protruding plate in the positioning component with double rows of three holes, the wear-resistant and impact-bearing liner body is modified accordingly and fixed by three sets of positioning bolts and mating holes. Combined with the fitting and limiting of groove one and groove two, the connection stability between the liner body and the support plate frame and the partition plate is greatly improved, and the liner body is prevented from loosening when the ball mill is running. In addition, the outer wall of the liner body has diamond-shaped convex texture, which enhances the surface wear resistance and adapts to the impact environment during grinding.

[0013] 2. In this utility model, the combined insert plate of the support plate frame is inserted into the combined slot and spliced ​​with the limiting bolt to form a ring to fit the inner wall of the ball mill, which can meet the needs of ball mills of different specifications. The partition plate is conveniently installed by the mounting plate and fastening bolt. The protective cover can prevent dust from entering the thread groove of the positioning bolt. The whole assembly and disassembly and replacement of individual liners are convenient, reducing maintenance time, ensuring the protective effect on the inner wall of the ball mill, and extending the service life of the equipment. Attached Figure Description

[0014] Figure 1 This is a perspective view of a high-efficiency wear-resistant liner for a ball mill in a cement plant, as proposed in this utility model. Figure 2 This is a schematic diagram of the liner body structure of a high-efficiency wear-resistant liner for a cement plant ball mill, as proposed in this utility model. Figure 3 This is a schematic diagram of the support frame structure for a high-efficiency wear-resistant liner plate for a cement plant ball mill, as proposed in this utility model. Figure 4This is a schematic diagram of the positioning bolt structure for a high-efficiency wear-resistant liner plate for a cement plant ball mill, as proposed in this utility model. Figure 5 This is a schematic diagram of the partition plate structure of a high-efficiency wear-resistant liner for a cement plant ball mill, as proposed in this utility model.

[0015] Legend: 1. Support plate frame; 2. Liner plate body; 3. Divider plate; 4. Protective cover; 5. Fastening bolt; 6. Combination slot; 7. Raised plate; 8. Diamond-shaped raised pattern; 9. Groove one; 10. Combination insert plate; 11. Mounting groove; 12. Positioning bolt; 13. Hexagonal groove; 14. Threaded groove; 15. Mounting plate; 16. Groove two. 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] Reference Figures 1-3 This utility model provides an embodiment of a high-efficiency wear-resistant liner for a cement plant ball mill, comprising a support frame 1, which is a fan-shaped support. Several corresponding mounting grooves 11 are formed on the inner walls of both sides of the support frame 1. Several partition plates 3 are mounted on the inner walls of the mounting grooves 11 via fastening components. A groove 16 is formed on the opposite side of each adjacent partition plate 3. Two combined insert plates 10 are fixedly connected to the outer wall of one side of the support frame 1, and two combined slots 6 are formed on the outer wall of the other side of the support frame 1. The shape matches the outer wall shape of the combined insert plate 10. The inner wall of the combined slot 6 is threaded with a limit bolt. The inner wall of the combined insert plate 10 has a through hole that matches the limit bolt. The fastening assembly includes a mounting plate 15 embedded in the inner wall of the mounting groove 11. The outer wall of the mounting plate 15 is fixedly connected to the outer wall of the partition plate 3. The inner wall of the mounting plate 15 is threaded with a fastening bolt 5. The outer wall of the support plate frame 1 is provided with threaded holes that match the shape of the fastening bolt 5. The outer wall of the liner body 2 is evenly distributed with diamond-shaped ridges 8 to enhance the surface wear resistance of the liner body 2. Specifically, the supports on both sides of the support plate 1 are made of low-alloy high-strength steel, which can be stretched and opened to a certain angle to adapt to the ring splicing requirements of the inner wall of the ball mill. The fastening bolts 5 and the limiting bolts are both composed of bolts and nuts. The dimensions of the liner body 2 and the partition plate 3 gradually decrease from the outside to the inside. The maximum stretch of the elastic supports on both sides is controlled at 10mm, which facilitates the installation of the partition plate 3 and is not easy to be permanently deformed. The partition plate 3 is made of high manganese steel, which has strong impact and wear resistance. The mounting plate 15 is fixed to the partition plate 3 by argon arc welding. The weld is ground to be smooth and burr-free. The fastening bolts 5 and the limiting bolts are made of stainless steel. The bolt heads are provided with anti-slip texture to prevent rust in the humid and dusty environment of the ball mill. The liner body 2 is made of high-chromium cast iron. The diamond-shaped raised texture 8 is 2mm high and 5mm apart, which not only strengthens the surface wear resistance, but also enhances the friction with the grinding media and improves the grinding efficiency.

[0018] Reference Figure 4 and Figure 5 The inner wall of the support plate frame 1 arc frame is provided with a groove 9. The inner walls of adjacent grooves 9 and groove 2 are embedded with a liner body 2. The outer wall of the liner body 2 is fixed to the partition plate 3 by a positioning component. The positioning component includes a protruding plate 7 fixedly connected to both sides of the outer wall of the liner body 2. The inner wall of the protruding plate 7 is provided with three sets of mating holes. The inner wall of the protruding plate 7 is threaded with a positioning bolt 12 through the mating holes. The middle of one end of the outer side of the positioning bolt 12 is provided with a threaded groove 14. The inner wall of the threaded groove 14 is threaded with a protective cover 4. The outer side of the threaded groove 14 is provided with a hexagonal groove 13 to facilitate the rotation of the positioning bolt 12. Specifically, the raised plate 7 of the liner body 2 is integrally cast with the body and is made of the same material as the liner body 2. The thickness of the raised plate 7 is consistent with the depth of the groove 9 and the groove 16 to ensure that there is no looseness after fitting. The positioning bolt 12 is made of alloy steel and is heat-treated. The thread precision of the inner wall of the mating hole is high and it is closely matched with the thread of the positioning bolt 12. The hexagonal groove 13 is an internal hexagonal structure, which is compatible with commonly used internal hexagonal wrenches and facilitates quick disassembly and assembly. The protective cover 4 is made of nylon and the inner wall thread matches the thread groove 14. After the cover is closed, a thick rubber sealing ring is attached to the inner wall to prevent dust from entering the thread groove and causing the positioning bolt 12 to jam, thus extending the service life of the component.

[0019] Working principle: First, the support frame plate 1 is a spliced ​​fan-shaped plate of the entire circular plate. When in use, the outer protruding plate 7 of one of the liner body 2 is inserted into the groove 9 on the inner wall of the support frame 1. Then, three sets of positioning bolts 12 are inserted into the corresponding mating holes on the protruding plate 7. Next, the partition plate 3 is placed into the inner wall of the mounting groove 11 through the mounting plates 15 on both sides, so that the protruding plate 7 on the other side of the liner body 2 is inserted into the inner wall of the groove 16 of the partition plate 3. The mounting plates 15 on the inner wall of the mounting groove 11 are fixed by the fastening bolts 5 composed of bolts and nuts, thereby completing the fixed installation of a single liner body 2. The protective cover 4 is combined with the threaded groove 14 through the external thread to cover the hexagonal groove 13 for protection. Then, the remaining liner bodies 2 and partition plates 3 are installed on the support frame plate 1 one by one. Finally, the support frame plates 1 are connected by the combination insert plate 10 inserted into the inner wall of the corresponding combination slot 6, and the installation is completed by assembling them into a ring.

[0020] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A high-efficiency wear-resistant liner for a ball mill in a cement plant, characterized in that, The support plate frame (1) is fan-shaped. Several mounting slots (11) with corresponding positions are opened on the inner walls of the two sides of the support plate frame (1). Several partition plates (3) are installed on the inner walls of the mounting slots (11) by fastening components. A second groove (16) is opened on the opposite side of two adjacent partition plates (3). A first groove (9) is opened on the inner wall of the arc frame of the support plate frame (1). A liner body (2) is embedded in the inner walls of adjacent first groove (9) and second groove (16). The outer wall of the liner body (2) is fixed to the partition plate (3) by positioning components.

2. The high-efficiency wear-resistant liner for a cement plant ball mill according to claim 1, characterized in that: Two combined insert plates (10) are fixedly connected to the outer wall of one side of the support plate frame (1), and two combined slots (6) are opened on the outer wall of the other side of the support plate frame (1). The inner wall shape of the combined slot (6) matches the outer wall shape of the combined insert plate (10). A limit bolt is threaded on the inner wall of the combined slot (6), and a through hole that matches the limit bolt is opened on the inner wall of the combined insert plate (10).

3. The high-efficiency wear-resistant liner for a cement plant ball mill according to claim 1, characterized in that: The fastening assembly includes a mounting plate (15) embedded in the inner wall of the mounting groove (11), the outer wall of the mounting plate (15) is fixedly connected to the outer wall of the partition plate (3), the inner wall of the mounting plate (15) is threaded with fastening bolts (5), and the outer wall of the support plate frame (1) is provided with threaded holes that match the shape of the fastening bolts (5).

4. The high-efficiency wear-resistant liner for a cement plant ball mill according to claim 1, characterized in that: The outer wall of the liner body (2) is uniformly distributed with diamond-shaped ridges (8) to enhance the surface wear resistance of the liner body (2).

5. The high-efficiency wear-resistant liner for a cement plant ball mill according to claim 1, characterized in that: The positioning component includes protruding plates (7) fixedly connected to both sides of the outer wall of the liner body (2). The inner wall of the protruding plate (7) is provided with three sets of mating holes, and positioning bolts (12) are threadedly installed on the inner wall of the protruding plate (7) through the mating holes.

6. The high-efficiency wear-resistant liner for a cement plant ball mill according to claim 5, characterized in that: The positioning bolt (12) has a threaded groove (14) at the middle of one side of its outer end, and a protective cover (4) is threaded onto the inner wall of the threaded groove (14).

7. The high-efficiency wear-resistant liner for a cement plant ball mill according to claim 6, characterized in that: The threaded groove (14) has a hexagonal groove (13) on the outside to facilitate the rotation of the positioning bolt (12).

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