Lining grinding structure of ball mill and ball mill

Abstract

The invention discloses a ball mill lining grinding structure and a ball mill, and relates to the technical field of ball mills, a fixing mechanism comprises an arc-shaped groove, a clamping ring, a clamping plate and a clamping assembly, the arc-shaped groove is formed in the end face of a lining grinding plate, the two sides of a groove cavity of the arc-shaped groove are open, the clamping ring is placed in the arc-shaped groove, and the clamping plate is arranged in the clamping assembly. According to the device, the fixing mechanism is arranged, each lining grinding plate is clamped in the inner side of the ball mill barrel through the clamping assemblies, the clamping rings are clamped in the arc-shaped grooves, so that the end faces of the lining grinding plates are aligned, and the lining grinding plates are clamped in the arc-shaped grooves, so that the lining grinding plates are clamped in the arc-shaped grooves, and the lining grinding plates are clamped in the arc-shaped grooves; and the clamping ring is fixed by inserting the clamping plate into the positioning groove, so that the clamping ring is firmly clamped in the arc-shaped groove, and the lining grinding plate is fixed in the ball mill barrel, so that hole sites are prevented from being formed in the lining grinding plate, the problem of powder residue is avoided, and the whole mounting is convenient.

Description

Technical Field

[0001] The invention relates to the technical field of ball mills, in particular to a ball mill liner grinding structure and a ball mill. Background Art

[0002] The ball mill liner is lined inside the ball mill cylinder to protect the inner wall of the cylinder from damage caused by the impact of materials and steel balls. At the same time, different liner shapes can be used to adjust the movement of the grinding media in the cylinder, helping the grinding media to grind the materials better and enhance the grinding efficiency and grinding effect. However, each existing liner must be welded or bolted to the ball mill cylinder, which is more complicated to install. In addition, the use of bolts to install has many holes on the inside of the existing liner, which easily leads to powder residue.

[0003] After searching, the Chinese patent publication number is CN216573393U, and the publication date is 2022-05-24. It discloses a new lining structure of a ball mill. In view of the problem that the existing ball mill liner is an integrated structure, it needs to be replaced and maintained as a whole when it is worn out after long-term use, which makes the maintenance cost high. The following scheme is proposed, which includes a ball mill drum, and an inner liner sleeve is fixedly installed on the inner wall of the ball mill drum, and the inner wall of the inner liner sleeve is symmetrically provided with mounting openings, the number of the mounting openings is two, and a plurality of mounting plates are equidistantly mounted in the mounting openings, and an inner liner plate is fixedly installed on one side of the mounting plate, and the plurality of mounting plates are respectively engaged in two, and a pressure plate is slidably connected in the movable groove. The utility model arranges the plurality of inner liner plates as independent individuals, and can be conveniently installed in the mounting openings, so that when replacing and maintaining the plurality of inner liner plates, two conveniences can be provided, and the maintenance cost can be reduced at the same time. However, when the device is in use, the inner lining plate is pressed by the pressing plate, but the inner lining plate still moves forward and backward, the inner lining plate is not firmly fixed, and the installation is not convenient. In summary, the existing lining plate installation method is not convenient enough and the use is not convenient enough. Summary of the invention

[0004] The object of the present invention is to provide a ball mill liner grinding structure and a ball mill to solve the technical problems mentioned in the above background technology.

[0005] The purpose of the present invention can be achieved through the following technical solutions:

[0006] A ball mill liner grinding structure comprises a ball mill cylinder, and a liner grinding plate is connected to the ball mill cylinder via a fixing mechanism.

[0007] The fixing mechanism includes an arc groove, a clamping ring, a clamping plate and a clamping assembly. The arc groove is arranged on the end face of the lining grinding plate, and both sides of the arc groove cavity are open. The clamping ring is placed in the arc groove, and a positioning groove is arranged on the outer side of the clamping ring. The clamping plate is connected to the inner side of the ball mill cylinder through a reset mechanism. The clamping plate and the clamping assembly are movably connected, and the clamping plate and the positioning groove are matched. A positioning mechanism is arranged between the clamping plate and the ball mill cylinder, and the clamping assembly is arranged between the ball mill cylinder and the lining grinding plate for supporting and positioning the lining grinding plate.

[0008] As a further solution of the present invention: the clamping assembly includes a dovetail groove and a dovetail strip used in conjunction with the dovetail groove, the dovetail groove is opened through the front side of the lining grinding plate, the dovetail strip is fixedly connected to the inner side of the ball mill cylinder, and the length of the dovetail groove is greater than the length of the dovetail strip.

[0009] As a further solution of the present invention: a plurality of inner lining grinding plates are provided, and the inner lining grinding plates are tightly fitted together, two retaining rings are symmetrically provided along the front and back of the ball mill cylinder, and four retaining plates and positioning grooves are provided.

[0010] As a further solution of the present invention: the reset mechanism includes a first movable groove opened on the inner side of the ball mill cylinder, a spring is fixedly connected in the first movable groove, the spring is fixedly connected to the clamping plate, and the clamping plate is slidably connected to the first movable groove.

[0011] As a further solution of the present invention: a through groove connected to the arc groove is formed on the inner lining grinding plate, the through groove and the dovetail groove are perpendicular to each other and are connected to each other, the through groove and the clamping plate are slidably connected, a connecting groove connected to the first movable groove is formed on the inner side of the ball mill cylinder, one side of the connecting groove cavity is open, and there are four connecting grooves.

[0012] As a further solution of the present invention: the positioning mechanism includes a second movable groove extending through the front side of the clamping plate and a slot extending inside the cylinder of the ball mill, a positioning plate connected to the slot for use in conjunction with the second movable groove is slidably connected, a convex plate is fixedly connected to the positioning plate, a limiting groove is extending through the positioning plate, a limiting rod is fixedly connected to the second movable groove, the limiting rod is located in the limiting groove, the positioning plate and the connecting groove are matched, and the slot is connected to the first movable groove.

[0013] As a further solution of the present invention: the outer surface of the retaining ring is fixedly connected with a first protrusion and a second protrusion, four of the first protrusion and the second protrusion are provided, and the end surface of the lining grinding plate is provided with a first groove and a second groove, respectively. The groove cavities of the first groove and the second groove close to the side of the retaining ring are both open, the first protrusion is adapted to the first groove, and the second protrusion is adapted to the second groove.

[0014] The present invention also provides a ball mill, comprising the ball mill liner grinding structure described in any one of the above items.

[0015] The present invention provides a ball mill liner grinding structure and a ball mill. Compared with the prior art, it has the following beneficial effects:

[0016] (1) The present application sets a fixing mechanism, utilizes a clamping assembly to clamp each liner grinding plate in the inner side of the ball mill cylinder, utilizes a clamping ring to clamp in the arc groove, so that the end face of each liner grinding plate is aligned, and then fixes the clamping ring by inserting the clamping plate into the positioning groove, so that the clamping ring is firmly clamped in the arc groove, thereby fixing the liner grinding plate in the ball mill cylinder. In this way, it is avoided to open holes on the liner grinding plate, circumventing the problem of powder residue, and the overall installation is convenient.

[0017] (2) The present application sets a positioning mechanism. When the inner lining grinding plate is disassembled and assembled, the clamping plate is moved and the positioning plate is inserted into the slot to fix the clamping plate, thereby facilitating the removal of the clamping ring from the arc groove and facilitating the disassembly and assembly of the inner lining grinding plate.

[0018] (3) The present application uses the first protrusion, the second protrusion, the first groove and the second groove in combination, which facilitates the insertion of the clamping plate into the positioning groove to fix the clamping ring when the clamping ring is installed in the arc groove. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A perspective view of the present invention;

[0020] Figure 2 For the present invention Figure 1 A partial enlarged view of the middle A;

[0021] Figure 3 An exploded view of the present invention;

[0022] Figure 4 is a three-dimensional diagram of the inner lining grinding plate of the present invention;

[0023] Figure 5 For the present invention Figure 4 A partial enlarged view of point B in the middle;

[0024] Figure 6 is a stereogram of the clamp ring of the present invention;

[0025] Figure 7 It is a three-dimensional side sectional view of the present invention;

[0026] Figure 8 For the present invention Figure 7 A partial enlarged view of point C in the middle;

[0027] Fig. 9 It is a three-dimensional side sectional view of the card board of the present invention;

[0028] Fig.10 It is a three-dimensional main sectional view of the present invention.

[0029] In the figure: 1. ball mill cylinder; 2. fixing mechanism; 21. arc groove; 22. snap ring; 23. clamping plate; 24. clamping assembly; 241. dovetail groove; 242. dovetail strip; 25. positioning groove; 26. reset mechanism; 261. first movable groove; 262. spring; 27. positioning mechanism; 271. second movable groove; 272. slot; 273. positioning plate; 274. convex plate; 275. limiting groove; 276. limiting rod; 3. lining grinding plate; 4. through groove; 5. connecting groove; 6. first protrusion; 7. second protrusion; 8. first groove; 9. second groove. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] Embodiment 1

[0032] See also Figure 1-10As shown, the present invention is a ball mill liner grinding structure, including a ball mill cylinder 1, the ball mill cylinder 1 is connected to a liner grinding plate 3 through a fixing mechanism 2; the fixing mechanism 2 includes an arc groove 21, a clamping ring 22, a clamping plate 23 and a clamping assembly 24, when the clamping ring 22 is clamped in the arc groove 21, the end face of the clamping ring 22 is flush with the end face of the liner grinding plate 3, the arc groove 21 is provided on the end face of the liner grinding plate 3, and both sides of the groove cavity of the arc groove 21 are open, the clamping ring 22 is placed in the arc groove 21, and a positioning groove 25 is provided on the outer side of the clamping ring 22, the clamping plate 23 is connected to the inner side of the ball mill cylinder 1 through a reset mechanism 26, the clamping plate 23 is movably connected to the clamping assembly 24, and the clamping plate 23 is adapted to the positioning groove 25, a positioning mechanism 27 is arranged between the clamping plate 23 and the ball mill cylinder 1, and the clamping assembly 24 is arranged between the ball mill cylinder 1 and the lining grinding plate 3, and is used to support and position the lining grinding plate 3. By setting the fixing mechanism 2, each lining grinding plate 3 is clamped in the inner side of the ball mill cylinder 1 by the clamping assembly 24, and the clamping ring 22 is clamped in the arc groove 21, so that the end surface of each lining grinding plate 3 is aligned, and then the clamping ring 22 is fixed by inserting the clamping plate 23 into the positioning groove 25, so that the clamping ring 22 is firmly clamped in the arc groove 21, so that the lining grinding plate 3 is fixed in the ball mill cylinder 1, thereby avoiding the need to open holes on the lining grinding plate 3, avoiding the problem of powder residue, and the overall installation is convenient.

[0033] The clamping assembly 24 includes a dovetail groove 241 and a dovetail bar 242 used in conjunction with the dovetail groove 241, wherein the dovetail groove 241 is formed through the front surface of the inner lining grinding plate 3, and the dovetail bar 242 is fixedly connected to the inner side of the ball mill cylinder 1, and the length of the dovetail groove 241 is greater than the length of the dovetail bar 242, so that the design is conducive to the movement of the clamping plate 23.

[0034] There are multiple inner lining grinding plates 3, and the inner lining grinding plates 3 are tightly fitted together. Two clamping rings 22 are symmetrically arranged along the front and back of the ball mill cylinder 1, and there are four clamping plates 23 and positioning grooves 25.

[0035] The reset mechanism 26 includes a first movable groove 261 opened on the inner side of the ball mill cylinder 1, and a spring 262 is fixedly connected in the first movable groove 261. The spring 262 is fixedly connected to the clamping plate 23, and the clamping plate 23 is slidably connected to the first movable groove 261. The spring 262 can be used to apply elastic force to the clamping plate 23. When the ball mill cylinder 1 rotates, the clamping plate 23 will not be separated from the positioning groove 25 due to gravity, causing the clamping ring 22 to loosen, thereby preventing the inner lining grinding plate 3 from being fixed insufficiently.

[0036] The inner lining grinding plate 3 is provided with a through groove 4 connected with the arc groove 21, the through groove 4 and the dovetail groove 241 are perpendicular to each other and are connected with each other, the through groove 4 and the clamping plate 23 are slidably connected, and a connecting groove 5 connected with the first movable groove 261 is provided on the inner side of the ball mill cylinder 1, one side of the connecting groove 5 cavity is open, and there are four connecting grooves 5.

[0037] This embodiment also discloses a ball mill, including a ball mill liner grinding structure.

[0038] Embodiment 2

[0039] Based on Example 1, see Figure 1 , Figure 2 , Figure 7 , Figure 8 and Fig. 9 shown.

[0040] The positioning mechanism 27 includes a second movable groove 271 extending through the front of the clamping plate 23 and a slot 272 provided inside the ball mill barrel 1. A positioning plate 273 connected to and used in conjunction with the slot 272 is slidably connected in the second movable groove 271. When the positioning plate 273 moves to the maximum distance outside the ball mill barrel 1, the end face of the positioning plate 273 is located in the dovetail groove 241. This design is conducive to subsequent assembly without interfering with the work of other parts. A convex plate 274 is fixedly connected to the positioning plate 273. A limiting groove 275 is provided through the second movable groove 271, and a limiting rod 276 is fixedly connected to the limiting groove 275. The positioning plate 273 is adapted to the connecting groove 5, and the slot 272 is connected to the first movable groove 261. By setting a positioning mechanism 27, when the lining grinding plate 3 is disassembled and assembled, the clamping plate 23 is moved and the positioning plate 273 is inserted into the slot 272 to fix the clamping plate 23, thereby facilitating the removal of the retaining ring 22 from the arc groove 21 and facilitating the disassembly and assembly of the lining grinding plate 3.

[0041] Embodiment 3

[0042] Based on Example 1, see Figure 1 , Figure 2 , Figure 3 and Figure 6 shown.

[0043] The outer surface of the snap ring 22 is fixedly connected with a first protrusion 6 and a second protrusion 7, four of which are provided. The end surface of the lining grinding plate 3 is provided with a first groove 8 and a second groove 9, respectively. The groove cavities of the first groove 8 and the second groove 9 close to the side of the snap ring 22 are both open. The first protrusion 6 is adapted to the first groove 8, and the second protrusion 7 is adapted to the second groove 9. Through the coordinated use of the first protrusion 6, the second protrusion 7, the first groove 8 and the second groove 9, when the snap ring 22 is installed in the arc groove 21, it is beneficial for the clamping plate 23 to be inserted into the positioning groove 25 to fix the snap ring 22.

[0044] Meanwhile, the contents not described in detail in this specification belong to the prior art known to those skilled in the art.

[0045] The working principle of the present invention is as follows: by aligning the dovetail groove 241 with the dovetail strip 242, each lining grinding plate 3 is sequentially clamped inside the ball mill cylinder 1, and then the corresponding first protrusion 6 is aligned with the first groove 8, and the second protrusion 7 is aligned with the second groove 9. Through the coordinated use of the first protrusion 6, the second protrusion 7, the first groove 8 and the second groove 9, when the clamping ring 22 is installed in the arc groove 21, it is beneficial to insert the clamping plate 23 into the positioning groove 25 to fix the clamping ring 22. After that, the clamping ring 22 is clamped in the arc groove 21 (the front and rear end surfaces of the lining grinding plate 3 are both provided with A retaining ring 22 is provided), and then the positioning plate 273 is pulled by the convex plate 274, so that the positioning plate 273 is pulled out of the slot 272, and then under the elastic force of the spring 262, the retaining plate 23 is inserted into the positioning groove 25, so that the four positioning grooves 25 on each retaining ring 22 are inserted with the corresponding retaining plate 23, so that the retaining ring 22 is fixed, so that the retaining ring 22 is firmly stuck in the arc groove 21, and the lining grinding plate 3 is fixed in the ball mill cylinder 1, which avoids opening holes on the lining grinding plate 3, avoids the problem of powder residue, and is convenient for overall installation. When the inner lining grinding plate 3 needs to be disassembled, only one of the retaining rings 22 needs to be disassembled. During the disassembly process, first, the positioning plate 273 is used to drive the retaining plate 23 to move, and then the positioning plate 273 moves to the connecting groove 5. Then, the positioning plate 273 is pushed to clamp the positioning plate 273 in the slot 272, thereby fixing the retaining plate 23, so that the retaining plate 23 is pulled out of the positioning slot 25 and the retaining plate 23 is lost (by setting the positioning mechanism 27, when the inner lining grinding plate 3 is disassembled and assembled, the retaining plate 23 is moved and the positioning plate 273 is inserted into the slot 272 to fix the retaining plate 23, so as to facilitate the removal of the retaining ring 22 from the arc groove 21, and facilitate the disassembly and assembly of the inner lining grinding plate 3). After that, the retaining ring 22 can be removed from the arc groove 21, and then the corresponding inner lining grinding plate 3 can be disassembled. The operation is simple and convenient to use.

[0046] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A ball mill liner grinding structure, comprising a ball mill cylinder (1), characterized in that: The ball mill cylinder (1) is connected to an inner lining grinding plate (3) via a fixing mechanism (2); The fixing mechanism (2) comprises an arc groove (21), a clamping ring (22), a clamping plate (23) and a clamping assembly (24); the arc groove (21) is provided on the end surface of the inner lining grinding plate (3), and both sides of the groove cavity of the arc groove (21) are open; the clamping ring (22) is placed in the arc groove (21); a positioning groove (25) is provided on the outer side of the clamping ring (22); the clamping plate (23) is connected to the inner side of the ball mill cylinder (1) through a reset mechanism (26); the clamping plate (23) and the clamping assembly (24) are movably connected; the clamping plate (23) and the positioning groove (25) are adapted to each other; a positioning mechanism (27) is provided between the clamping plate (23) and the ball mill cylinder (1); and the clamping assembly (24) is provided between the ball mill cylinder (1) and the inner lining grinding plate (3) for supporting and positioning the inner lining grinding plate (3).

2. A ball mill liner grinding structure according to claim 1, characterized in that: The clamping assembly (24) comprises a dovetail groove (241) and a dovetail bar (242) used in conjunction with the dovetail groove (241), the dovetail groove (241) being arranged through the front surface of the inner lining grinding plate (3), the dovetail bar (242) being fixedly connected to the inner side of the ball mill barrel (1), and the length of the dovetail groove (241) being greater than the length of the dovetail bar (242).

3. The ball mill liner grinding structure according to claim 1, characterized in that: The inner lining grinding plates (3) are provided in plurality and are tightly fitted to each other. Two retaining rings (22) are symmetrically provided along the front and rear of the ball mill barrel (1). Four retaining plates (23) and four positioning grooves (25) are provided.

4. The ball mill liner grinding structure according to claim 1, characterized in that: The reset mechanism (26) comprises a first movable groove (261) formed on the inner side of the ball mill barrel (1), a spring (262) being fixedly connected in the first movable groove (261), the spring (262) being fixedly connected to the clamping plate (23), and the clamping plate (23) being slidably connected to the first movable groove (261).

5. A ball mill liner grinding structure according to claim 4, characterized in that: The inner lining grinding plate (3) is provided with a through groove (4) connected to the arc groove (21); the through groove (4) and the dovetail groove (241) are arranged perpendicular to each other and are connected to each other; the through groove (4) and the dovetail groove (241) are slidably connected to the clamping plate (23); a connecting groove (5) connected to the first movable groove (261) is provided on the inner side of the ball mill barrel (1); one side of the groove cavity of the connecting groove (5) is opened; and four connecting grooves (5) are provided.

6. A ball mill liner grinding structure according to claim 5, characterized in that: The positioning mechanism (27) comprises a second movable groove (271) extending through the front surface of the clamping plate (23) and a slot (272) extending inside the ball mill barrel (1); a positioning plate (273) connected to the slot (272) for use with the second movable groove (271) is slidably connected; a convex plate (274) is fixedly connected to the positioning plate (273); a limiting groove (275) extending through the positioning plate (273); a limiting rod (276) is fixedly connected to the second movable groove (271); the limiting rod (276) is located in the limiting groove (275); the positioning plate (273) is adapted to fit the connecting groove (5); and the slot (272) is connected to the first movable groove (261).

7. The ball mill liner grinding structure according to claim 1, characterized in that: The outer surface of the snap ring (22) is fixedly connected with a first protrusion (6) and a second protrusion (7), and four of the first protrusion (6) and the second protrusion (7) are provided. The end surface of the lining grinding plate (3) is provided with a first groove (8) and a second groove (9), and the groove cavities of the first groove (8) and the second groove (9) close to the side of the snap ring (22) are both open. The first protrusion (6) is matched with the first groove (8), and the second protrusion (7) is matched with the second groove (9).

8. A ball mill, characterized in that: The invention comprises a ball mill liner grinding structure as claimed in any one of claims 1 to 7.

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