Lining structure of ball mill

Abstract

The utility model discloses a ball mill lining structure which comprises a first lining plate and a second lining plate, the first lining plate and the second lining plate are alternately mounted on the inner wall of a ball mill, a mounting plate is fixed to the first lining plate, an activation lining plate is detachably mounted on the mounting plate, a through groove is formed in the activation lining plate, and a sieve plate is mounted in the through groove; a baffle is fixed to the second inner lining plate, the multiple activation lining plates and the multiple baffles on the same plane jointly form a material blocking ring, a fixing plate is fixed to one side of the mounting plate, a mounting groove is formed in the fixing plate, and one side of each activation lining plate is located in the mounting groove. According to the utility model, the mounting plate is fixed on the lining plate, so that a complete lining is formed in the ball mill, meanwhile, the activation lining plate can be independently detached, a detaching space is reserved through the baffle, maintenance and replacement are facilitated, and the sieve plate is mounted on the activation lining plate, so that the screening efficiency is further improved, and the ball mill is more uniform in discharging and finer in fineness.

Description

Technical Field

[0001] The utility model relates to the technical field of cement production, in particular to a ball mill lining structure. Background Art

[0002] The ball mill is a key equipment for grinding raw materials in cement production. The grinding media (such as steel balls) in the ball mill collide and rub against the raw materials, making the raw material particles gradually finer. At the same time, the structure and morphology of the raw materials can be changed through the effects of crushing and friction, increasing their surface energy and making it easier for the raw materials to contact and react with other substances. It helps to improve the chemical reaction activity of cement, enhance the strength of cement and early strength development. In addition, the ball mill has high production efficiency and can produce continuously, which greatly improves the production capacity and efficiency of cement production.

[0003] During the operation of the ball mill, the liner configured with the original mill cannot effectively classify the materials, cannot balance the materials, and the materials cannot be fully ground in the bin, resulting in a coarse grind fineness. At the same time, the activated liner is integrally formed with the inner wall liner of the ball mill, and it is difficult to disassemble. The entire inner wall liner of the ball mill needs to be removed, which is difficult to disassemble and has a high replacement cost. For this reason, we proposed a ball mill liner structure to solve the above problems. Utility Model Content

[0004] The present application provides a ball mill lining structure, which solves the problems of low grading efficiency, difficulty in disassembly and high replacement cost of the original liner of the ball mill.

[0005] The present application provides a ball mill lining structure, including a first lining plate and a second lining plate, the first lining plate and the second lining plate are alternately installed on the inner wall of the ball mill, a mounting plate is fixed on the first lining plate, an activation lining plate is detachably installed on the mounting plate, a through groove is provided on the activation lining plate, a sieve plate is installed on the through groove, a baffle is fixed on the second lining plate, and multiple activation liners and multiple baffles on the same plane together constitute a material retaining ring.

[0006] Preferably, the spacing between the retaining rings is 0.8-1.2 m.

[0007] Preferably, a fixing plate is fixed to one side of the mounting plate, a mounting groove is provided on the fixing plate, one side of the activation liner is located in the mounting groove, and the activation liner is fixed to the mounting plate by bolts.

[0008] Preferably, a reinforcing block is provided at the position where the fixing plate is installed with the bolts, and the bolt holes corresponding to the bolts are located on the reinforcing block.

[0009] Preferably, the reinforcement block, the fixing plate and the mounting plate are an integrated structure.

[0010] Preferably, there are multiple through grooves.

[0011] Preferably, the screen plate is welded to the activated liner.

[0012] Preferably, the thickness of the activated lining plate and the screen plate is 5 mm.

[0013] Preferably, the first inner lining plate and the second inner lining plate are both provided with mounting holes, and the first inner lining plate and the second inner lining plate are fixed to the inner wall of the ball mill by screws.

[0014] Preferably, the activated lining is arranged in a regular trapezoidal shape, and the bottom width of the activated lining is less than or equal to the top spacing distance between two activated linings after installation.

[0015] It can be seen from the above technical scheme that the present application provides a ball mill lining structure, which is installed in the ball mill. During installation, the mounting plate and the baffle are first installed in the ball mill through the first lining plate and the second lining plate, and combined with other lining plates to form the lining structure of the ball mill, and then the activation liner is installed through the mounting plate. Since the activation liner is installed in a ring shape and a baffle is installed between the two activation liners, each activation liner can be installed separately. Therefore, if the screen plate is found to be damaged during maintenance, the corresponding activation liner can be directly removed and replaced with a new one.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] 1. Through the arrangement of the first inner lining plate, the second inner lining plate and the mounting plate, the activated lining plate is integrated with the inner lining plate, which is convenient for installation in the ball mill and forms a complete inner lining surface together with other inner lining plates, thereby improving the ball milling efficiency;

[0018] 2. Through the setting of the mounting plate and the activated lining plate, the mounting plate and the inner lining plate are installed as a whole and do not need to be disassembled. When the activated lining plate is damaged, only the activated lining plate needs to be replaced, which is highly efficient and low-cost;

[0019] 3. By setting the baffle, the gap between the two activated liners can be filled on the annular plane, leaving space for the removal of the activated liners, thereby facilitating the separate removal and replacement of the activated liners;

[0020] 4. By setting up the activated liner and screen plate, the classification effect is improved and the grinding efficiency is improved. During use, the grinding efficiency is significantly improved, the fineness of the cement out of the mill is significantly reduced, and the phenomenon of ball and forging can be effectively solved.

[0021] To sum up, in the utility model, the mounting plate is fixed on the inner lining plate, so that a complete inner lining is formed inside the ball mill. At the same time, the activated lining plate can be disassembled separately, and a disassembly space is left through the baffle to facilitate maintenance and replacement. A screen plate is installed on the activated lining plate to further improve the screening efficiency, so that the ball mill discharges more uniformly and with finer fineness. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solution of the present application, the following is a brief introduction to the drawings required for use in the implementation cases. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0023] Figure 1 This is a structural schematic diagram of a ball mill lining structure proposed by the utility model;

[0024] Figure 2 The utility model is a schematic diagram of the structure of the retaining ring.

[0025] In the figure: 1 mounting plate, 2 mounting groove, 3 activation lining plate, 4 fixing plate, 5 through groove, 6 screen plate, 7 bolts, 8 reinforcement block, 9 first inner lining plate, 10 mounting hole, 11 baffle plate, 12 second inner lining plate. DETAILED DESCRIPTION

[0026] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings.

[0027] See also Figure 1-2, a ball mill lining structure, the present application improves the lining mechanism of the original ball mill, and provides a lining plate structure with simple disassembly, low replacement cost, and good grading ability, specifically, including a first lining plate 9 and a second lining plate 12, the two lining plates are different only in size, and are the same as the internal lining plates of the original ball mill in terms of installation and material. The first lining plate 9 and the second lining plate 12 are alternately installed on the inner wall of the ball mill to form a whole with other internal lining plates. A mounting plate 1 is fixed on the first lining plate 9. In the specific design, the first lining plate 9 and the mounting plate 1 are integrally formed, and the mounting plate 1 is set with a large thickness. After the first lining plate 9 is installed, it can maintain the same service life as the first lining plate 9. In the present application In the present invention, the mounting plate 1 and the first inner lining plate 9 are no longer disassembled after being installed. The mounting plate 1 is detachably provided with an activated lining plate 3. When the activated lining plate 3 is damaged, the activated lining plate 3 is directly removed and replaced without disassembling the inner lining of the ball mill on a large scale, which can effectively improve the replacement efficiency. During replacement, only the activated lining plate 3 with a smaller amount of material needs to be replaced, thereby reducing the replacement cost. In order to further improve the material grading capacity of the activated lining plate 3, a through groove 5 is provided on the activated lining plate 3, and the ball milled material can pass through the through groove 5 and move along the discharge end of the ball mill, and the through groove 5 is provided with a sieve plate 6 to filter and sample the material. The material is ball milled in a graded manner, which can effectively improve the ball milling efficiency and fineness, and also solve the problem of material sticking and forging.

[0028] Since the interior of the ball mill is circular and the inner liner is installed in a ring shape on a plane, in order to achieve the ability to remove the activated liner 3 separately, space is left between the two activated liners 3 so that a single activated liner 3 can be taken out separately. Therefore, a second inner liner 12 is installed between the two first inner liner plates 9, and a baffle 11 is fixed to the second inner liner plate 12 to block the space left by the two activated liners 3. The baffle 11 and the second inner liner plate 12 are also manufactured in an integrated manner. The gap between the baffle 11 and the activated liner 3 cannot affect the disassembly of the activated liner 3. A certain gap can be left between the activated liner 3 and the baffle 11, and the baffle 11 can have the same thickness as the mounting plate 1. The baffle 11 is not disassembled after installation. Multiple activated liners 3 and multiple baffles 11 on the same plane together form a material retaining ring to screen the material and grade it for ball milling, thereby improving the ball milling efficiency and fineness.

[0029] In the utility model, the interval between the retaining rings is 0.8-1.2m, which can divide the dust inside the ball mill into 3-5 areas and perform ball milling in stages, so the ball milling effect is good and the efficiency is high.

[0030] In the utility model, a fixing plate 4 is fixed on one side of the mounting plate 1, and the fixing plate 4 and the mounting plate 1 form a T-shaped structure, which is firmly installed and has a long service life. A mounting groove 2 is provided on the fixing plate 4, and the mounting groove 2 is arranged on the mounting plane of the activated liner 3. One side of the activated liner 3 is located in the mounting groove 2. The activated liner 3 is fixed to the mounting plate 1 by bolts 7, which is convenient for disassembly and replacement of the activated liner 3.

[0031] In order to further improve the service life of the connection of the bolt 7, a reinforcing block 8 is provided at the position where the bolt 7 is installed on the fixing plate 4, and the bolt hole corresponding to the bolt 7 is located on the reinforcing block 8, so as to further strengthen the thickness of this position, thereby improving the strength of the connection, and the reinforcing block 8, the fixing plate 4 and the mounting plate 1 are an integrated molding structure.

[0032] In some embodiments, in order to increase the service life of the sieve plate 6, there are multiple through grooves 5, thereby reducing the area of ​​one sieve plate 6 and improving the structural strength of the sieve plate 6 during filtering. The sieve plate 6 is welded to the activated lining 3. When the sieve plate 6 is deformed, the activated lining 3 can be directly replaced. The thickness of the activated lining 3 and the sieve plate 6 is 5 mm. With this thickness, it can not only ensure the smooth passage of materials, but also ensure the service life of the activated lining 3 and the sieve plate 6.

[0033] In some embodiments, mounting holes 10 are provided on the first lining plate 9 and the second lining plate 12, and the first lining plate 9 and the second lining plate 12 are fixed to the inner wall of the ball mill by screws. In the present application, the lining of the ball mill is fixed to the ball mill by screws, and the installation efficiency is high.

[0034] In the utility model, the activated liner 3 is arranged in a regular trapezoidal shape, and the bottom width of the activated liner 3 is less than or equal to the top spacing distance of the two activated liners 3 after installation. The activated liner 3 can be disassembled and installed independently, which is efficient and the activated liners 3 of the same retaining ring are installed in the same plane, so the screening and grading effect is good.

[0035] It can be seen from the above technical scheme that the present application is installed in a ball mill. During installation, the mounting plate 1 and the baffle 11 are first installed in the ball mill through the first lining plate 9 and the second lining plate 12, and combined with other lining plates to form the lining structure of the ball mill, and then the activated lining plate 3 is installed through the mounting plate 1. Since the activated lining plate 3 is installed in a ring shape and the baffle 11 is installed between the two activated lining plates 3, each activated lining plate 3 can be installed separately. Therefore, if the screen plate 6 is found to be damaged during the maintenance process, the corresponding activated lining plate 3 can be directly removed and replaced with a new activated lining plate 3.

[0036] Those skilled in the art will readily appreciate other embodiments of the present application after considering the specification and practicing the application disclosed herein. The present application is intended to cover any variations, uses or adaptations of the present application, which follow the general principles of the present application and include common knowledge or customary techniques in the art that are not disclosed in the present application. The specification and examples are intended to be exemplary only, and the true scope of the present application is indicated by the claims.

[0037] It should be understood that the present application is not limited to the precise structure described above and shown in the drawings, and various modifications and changes can be made without departing from its scope. The above-described embodiments of the present application do not constitute a limitation on the scope of protection of the present application.

Claims

1. A ball mill lining structure, comprising a first lining plate (9) and a second lining plate (12), characterized in that: The first inner lining plate (9) and the second inner lining plate (12) are alternately installed on the inner wall of the ball mill; a mounting plate (1) is fixed on the first inner lining plate (9); an activation lining plate (3) is detachably installed on the mounting plate (1); a through groove (5) is provided on the activation lining plate (3); a sieve plate (6) is installed in the through groove (5); a baffle plate (11) is fixed on the second inner lining plate (12); a plurality of the activation lining plates (3) and a plurality of the baffle plates (11) on the same plane together constitute a material retaining ring.

2. A ball mill lining structure according to claim 1, characterized in that: The interval between the retaining rings is 0.8-1.2m.

3. A ball mill lining structure according to claim 1, characterized in that: A fixing plate (4) is fixed to one side of the mounting plate (1), a mounting groove (2) is provided on the fixing plate (4), one side of the activation lining plate (3) is located in the mounting groove (2), and the activation lining plate (3) is fixed to the mounting plate (1) by bolts (7).

4. A ball mill lining structure according to claim 3, characterized in that: A reinforcing block (8) is provided at the position where the bolt (7) is installed on the fixing plate (4), and the bolt holes corresponding to the bolts (7) are located on the reinforcing block (8).

5. A ball mill lining structure according to claim 4, characterized in that: The reinforcing block (8), the fixing plate (4) and the mounting plate (1) are an integrated structure.

6. A ball mill lining structure according to claim 1, characterized in that: There are multiple through grooves (5).

7. A ball mill lining structure according to claim 6, characterized in that: The sieve plate (6) is welded to the activated lining plate (3).

8. A ball mill lining structure according to claim 7, characterized in that: The thickness of the activated lining plate (3) and the sieve plate (6) is 5 mm.

9. A ball mill lining structure according to claim 1, characterized in that: The first inner lining plate (9) and the second inner lining plate (12) are both provided with mounting holes (10), and the first inner lining plate (9) and the second inner lining plate (12) are fixed to the inner wall of the ball mill by screws.

10. A ball mill lining structure according to claim 1, characterized in that: The activated lining plate (3) is arranged in a regular trapezoidal shape, and the bottom width of the activated lining plate (3) is less than or equal to the top spacing distance of two activated lining plates (3) after installation.

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