Sealing device for feed port of ball mill

Abstract

The utility model provides a ball mill feed port sealing device, and relates to the technical field of ball mill sealing, the ball mill feed port sealing device comprises a feed cylinder, the feed cylinder is sleeved with a lining, one end of the lining is used for being connected with an end lining plate of a ball mill, the feed cylinder is composed of a plurality of cylinders, the inner diameters of the cylinders are sequentially increased from left to right, and an inclined step is formed between every two adjacent cylinders; the feeding chute is arranged in the feeding cylinder, the lining is arranged in the feeding chute, an annular sealing groove is formed in the right end of the feeding cylinder, sealing filler is arranged in the annular sealing groove, and locking assemblies are symmetrically arranged between the lining and the feeding cylinder. During use, the feeding chute is inserted into the feeding cylinder, the inclined stepped structure in the feeding cylinder can block slurry entering the joint of the feeding chute and the feeding cylinder, and the sealing filler is arranged in the annular sealing groove; the slurry flows back into the ball mill barrel along the inclined plane, and the joint of the right end between the feeding barrel and the lining is sealed through the sealing filler, so that the slurry is prevented from entering the space between the feeding barrel and the lining, the poor field sanitary condition caused by slurry leakage is avoided, the cleaning workload is reduced, and the material waste is reduced.

Description

Technical Field

[0001] The present application relates to the technical field of ball mill sealing, and in particular to a ball mill feed port sealing device. Background Art

[0002] Ball mill is a common industrial equipment, mainly used for crushing and grinding materials. When the material enters the ball mill, with the rotation of the cylinder and the collision and friction of the internal grinding media, the material is gradually crushed and ground until it reaches the required fineness. Ball mill is widely used in mining, building materials, chemical industry, metallurgy and other fields, and can be used to process various ores, cement clinker, chemicals and other materials. Its working principle is based on impact force and friction, and the material is ground into smaller particles through continuous rolling and impact.

[0003] Generally speaking, the sealing device at the feed of conventional ball mill equipment mostly adopts packing seal. During operation, the feed chute is in a stationary state, while the feed bushing is connected to the tank body and rotates. Long-term rotation will cause packing wear and reduce the sealing effect. When the liquid level in the ball mill cylinder is higher than the lower horizontal plane of the feed port, the slurry will enter the joint of the feed chute and the feed bushing, causing leakage of slurry at the feed port, resulting in poor sanitary conditions at the construction site, heavy cleaning workload, and waste of materials. Summary of the invention

[0004] The purpose of the embodiment of the present application is to provide a ball mill feed port sealing device, which can solve the technical problems that slurry will enter the joint between the feed chute and the feed bushing, causing slurry leakage at the feed port and packing wear leading to slurry leakage.

[0005] An embodiment of the present application provides a ball mill feed port sealing device, including a feed barrel, a sleeve is provided on the outer shell of the feed barrel, one end of the sleeve is used to connect with the end liner of the ball mill, the feed barrel is composed of a plurality of cylinders, the inner diameters of the plurality of cylinders increase successively from left to right, and an inclined step is formed between two adjacent cylinders, an annular sealing groove is provided at the right end of the feed barrel, a sealing filler is provided in the annular sealing groove, and a locking assembly is provided between the sleeve and the feed barrel.

[0006] Furthermore, the inclination angle of the step formed between two adjacent cylinders is 20° to 40°.

[0007] Furthermore, the bushing includes a sleeve portion and a connecting portion, the connecting portion is located at the right end of the sleeve portion and is in a circular ring shape, the sleeve portion and the connecting portion are integrally formed, a plurality of first bolt holes are evenly arranged on the connecting portion, connecting bolts are arranged in the first bolt holes, and the connecting portion is connected to the end liner of the ball mill through the connecting bolts.

[0008] Furthermore, the sleeve connection portion is cylindrical, and a support member is provided between the sleeve connection portion and the feeding barrel.

[0009] Furthermore, the support member is annular, the inner ring side of the support member is fixedly connected to the outer side of the feed barrel, and the outer ring side of the support member is in contact with the sleeve portion.

[0010] Furthermore, the locking assembly includes a locking bolt and a moving block, the sleeve portion is symmetrically provided with a second bolt hole, the locking bolt is located in the second bolt hole, the moving block is located between the sleeve portion and the feed barrel, and the moving block can abut against the locking bolt.

[0011] Furthermore, a rubber pad is fixedly provided on a side of the moving block close to the feeding barrel, and a side of the rubber pad away from the moving block is configured to be in an arc shape that matches the outer side of the feeding barrel.

[0012] Beneficial effects of the utility model:

[0013] The utility model discloses a liner is arranged on the outer sleeve of a feed barrel, the feed barrel is composed of a plurality of cylinders, the inner diameters of the plurality of cylinders increase successively from left to right, an inclined step is formed between two adjacent cylinders, an annular sealing groove is arranged on the right end of the feed barrel, a sealing filler is arranged in the annular sealing groove, when in use, the feed chute is inserted into the feed barrel, when the liquid level in the ball mill cylinder is higher than the lower horizontal plane of the feed barrel, the inclined step structure in the feed barrel can block the slurry entering into the joint of the feed chute and the feed barrel, and make the slurry flow back into the ball mill cylinder along the inclined surface, and the connection at the right end between the feed barrel and the liner is sealed by the sealing filler, so as to prevent the slurry from entering between the feed barrel and the liner, avoid the poor sanitary conditions on site caused by leakage of slurry, reduce the large cleaning workload, and reduce material waste. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0015] Figure 1 This is a schematic diagram of the structure of some embodiments of the present application;

[0016] Figure 2 It is a cross-sectional view of some embodiments of the present application;

[0017] Figure 3 It is a left view in some embodiments of the present application;

[0018] The reference numerals are:

[0019] 1. Feed barrel; 11. Cylinder; 2. Bushing; 21. Socket joint; 211. Second bolt hole; 22. Connecting part; 221. First bolt hole; 222. Connecting bolt; 3. Annular sealing groove; 4. Sealing packing; 5. Locking assembly; 51. Locking bolt; 52. Moving block; 521. Rubber pad; 6. Support. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. The components of the embodiments of the present application described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present application provided in the accompanying drawings is not intended to limit the scope of the present application for which protection is sought, but merely represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work are within the scope of protection of the present application.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, or the positions or positional relationships in which the product of the application is usually placed when in use. They are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second", "third", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0024] In addition, the terms "horizontal", "vertical", "overhanging" and the like do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0025] In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "set", "install", "connect", and "connect" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances. Specific embodiment:

[0027] like Figure 1-3 As shown, the present application provides a ball mill feed port sealing device, including a feed barrel 1, a sleeve 2 is provided on the outer cover of the feed barrel 1, one end of the sleeve 2 is used to connect with the end liner of the ball mill, the feed barrel 1 is composed of a plurality of cylinders 11, the inner diameters of the plurality of cylinders 11 increase from left to right, and an inclined step is formed between two adjacent cylinders 11, an annular sealing groove 3 is provided at the right end of the feed barrel 1, a sealing filler 4 is provided in the annular sealing groove 3, a locking assembly 5 is symmetrically provided between the sleeve 2 and the feed barrel 1, and when in use, the feed barrel 1 is locked. The material chute is inserted into the feed barrel 1. When the liquid level in the ball mill cylinder is higher than the lower horizontal plane of the feed barrel 1, the inclined step structure in the feed barrel 1 can block the slurry entering the junction of the feed chute and the feed barrel 1, and make the slurry flow back into the ball mill cylinder along the inclined surface. The connection between the right end of the feed barrel 1 and the bushing 2 is sealed by the sealing filler 4 to prevent the slurry from entering between the feed barrel 1 and the bushing 2, avoid leakage of slurry and cause poor sanitary conditions on site, reduce the cleaning workload, and reduce material waste.

[0028] like Figure 2 As shown, the inclination angle of the step formed between two adjacent cylinders 11 is 20° to 40°. In the present embodiment, the inclination angle of the step formed between two adjacent cylinders 11 is 30°, wherein the number of cylinders 11 is 3, which can effectively block the slurry and make it flow back to avoid leakage.

[0029] like Figure 1-3 As shown, the bushing 2 includes a sleeve portion 21 and a connecting portion 22. The connecting portion 22 is located at the right end of the sleeve portion 21 and is in a circular ring shape. The sleeve portion 21 and the connecting portion 22 are integrally formed. A plurality of first bolt holes 221 are evenly arranged on the connecting portion 22. Connecting bolts 222 are arranged in the first bolt holes 221. The connecting portion 22 is connected to the end liner of the ball mill through the connecting bolts 222, so that the bushing 2 is firmly connected to the end liner of the ball mill.

[0030] like Figure 2 and Figure 3As shown, the sleeve portion 21 is in the shape of a cylinder 11, and a support member 6 is provided between the sleeve portion 21 and the feed barrel 1. The feed barrel 1 is supported by the support member 6, so that the feed barrel 1 located in the sleeve portion 21 of the bushing 2 is more stable.

[0031] like Figure 2 and Figure 3 As shown, the support member 6 is annular, the inner ring side of the support member 6 is fixedly connected to the outer side of the feed barrel 1, and the outer ring side of the support member 6 is in contact with the sleeve portion 21. The annular shape of the support member 6 can effectively prevent the feed barrel 1 from being offset due to external force, and the support is stable.

[0032] like Figure 2 and Figure 3 As shown, the locking assembly 5 includes a locking bolt 51 and a moving block 52. The sleeve 21 is symmetrically provided with a second bolt hole 211. The locking bolt 51 is located in the second bolt hole 211. The moving block 52 is located between the sleeve 21 and the feed barrel 1. The moving block 52 can abut against the locking bolt 51. The two moving blocks 52 are placed between the sleeve 21 and the feed barrel 1, and then the locking bolts 51 at the corresponding positions are turned to make the two moving blocks 52 approach each other and lock the feed barrel 1.

[0033] like Figure 2 and Figure 3 As shown, a rubber pad 521 is fixedly provided on the side of the moving block 52 close to the feed barrel 1, and the rubber pad 521 prevents the feed barrel 1 from being damaged by excessive locking. The side of the rubber pad 521 away from the moving block 52 is set to an arc shape that matches the outer side of the feed barrel 1, so that the rubber pad 521 fits with the outer surface of the feed barrel 1, thereby increasing the locking stability.

[0034] The above are only preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A ball mill feed inlet sealing device, characterized in that: It includes a feed barrel, the outer shell of which is provided with a bushing, one end of which is used to connect with the end liner of the ball mill, the feed barrel is composed of a plurality of cylinders, the inner diameters of the plurality of cylinders increase successively from left to right, and an inclined step is formed between two adjacent cylinders, an annular sealing groove is provided at the right end of the feed barrel, a sealing filler is provided in the annular sealing groove, and a locking assembly is symmetrically provided between the bushing and the feed barrel.

2. A ball mill feed port sealing device according to claim 1, characterized in that: The inclination angle of the step formed between two adjacent cylinders is 20° to 40°.

3. A ball mill feed port sealing device according to claim 1, characterized in that: The bushing includes a sleeve portion and a connecting portion, wherein the connecting portion is located at the right end of the sleeve portion and is in a circular ring shape, the sleeve portion and the connecting portion are integrally formed, a plurality of first bolt holes are evenly arranged on the connecting portion, connecting bolts are arranged in the first bolt holes, and the connecting portion is connected to the end liner of the ball mill through the connecting bolts.

4. A ball mill feed port sealing device according to claim 3, characterized in that: The sleeve connection part is cylindrical, and a support is provided between the sleeve connection part and the feeding cylinder.

5. A ball mill feed port sealing device according to claim 4, characterized in that: The support member is annular, the inner ring side of the support member is fixedly connected to the outer side of the feed barrel, and the outer ring side of the support member is in contact with the sleeve portion.

6. A ball mill feed port sealing device according to claim 4, characterized in that: The locking assembly includes a locking bolt and a moving block. The sleeve portion is symmetrically provided with a second bolt hole. The locking bolt is located in the second bolt hole. The moving block is located between the sleeve portion and the feed barrel. The moving block can abut against the locking bolt.

7. A ball mill feed port sealing device according to claim 6, characterized in that: A rubber pad is fixedly arranged on one side of the moving block close to the feeding barrel, and a side of the rubber pad away from the moving block is arranged in an arc shape adapted to the outer side of the feeding barrel.

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