Device for improving feeding sealing performance of ball mill

Abstract

The utility model discloses a device for improving feeding sealing performance of a ball mill, which comprises a feeding elbow, a feeding sleeve is sleeved on a horizontal section of the feeding elbow, a fixed flange is arranged at one end of the feeding sleeve, and a sealing rubber layer is arranged on a contact surface of the fixed flange and a feeding port of the ball mill. A pressing sleeve is arranged between the feeding elbow pipe and the feeding sleeve pipe, and sealing materials are arranged between the pressing sleeve pipe and the feeding sleeve pipe and between the pressing sleeve pipe and the pipe wall of the feeding elbow pipe; a tensioning flange is fixed on the feeding elbow, a tensioning bolt is in threaded connection with the tensioning flange, a cylindrical block is arranged at the tail end of the tensioning bolt, and the cylindrical block penetrates into one end of the pressing sleeve and is clamped with the pressing sleeve. The sealing rubber layer and the sealing rubber rings are arranged on the contact surface of the fixed flange and the feeding hole of the ball mill, and the matched sealing ring groove is formed in the feeding hole of the ball mill, so that the contact area between the fixed flange and the outer wall of the feeding hole of the ball mill is greatly increased, and tight attachment is realized, so that material leakage is effectively avoided, and the service life of the ball mill is prolonged. And the sealing performance is improved.

Description

Technical Field

[0001] This utility model relates to the field of ball mill technology, specifically to a device for improving the sealing performance of ball mill feed. Background Technology

[0002] Ball mills are crucial equipment for further pulverizing materials after initial crushing. By adding grinding media such as steel balls or ceramic balls into the mill cylinder, the centrifugal force and friction generated by the cylinder's rotation impact and grind the material, producing a product with the required particle size. However, when the filling rate of grinding media in the ball mill increases, the slurry and grinding media are more prone to leakage from the feeding point due to the mill's rotation. This leakage not only leads to material loss but may also cause environmental pollution. Existing leak-proof connection devices are not only structurally complex but also have many weaknesses, failing to meet the needs of production and processing. Utility Model Content

[0003] The purpose of this invention is to provide a device for improving the sealing performance of ball mill feed, which has the advantages of high sealing performance, simple structure and convenient installation, and solves the problems in the prior art.

[0004] To achieve the above objectives, this utility model provides the following technical solution:

[0005] A device for improving the sealing performance of ball mill feed includes a feed bend, a feed sleeve fitted on the horizontal section of the feed bend, a fixed flange at one end of the feed sleeve, the feed sleeve being installed on the outer wall of the ball mill inlet via the fixed flange, a sealing layer with several sealing rings on the contact surface between the fixed flange and the ball mill inlet; a clamping sleeve between the feed bend and the feed sleeve, and a sealing material between the clamping sleeve and the walls of the feed sleeve and the feed bend; a tensioning flange fixed on the feed bend, a tensioning bolt threaded onto the tensioning flange, a cylindrical block at the tail end of the tensioning bolt, the cylindrical block penetrating one end of the clamping sleeve and engaging with the clamping sleeve.

[0006] Preferably, the center points of the sealing rings coincide, and the ball mill feed inlet is provided with a sealing ring groove that matches the sealing ring.

[0007] Preferably, the end of the feed sleeve furthest from the fixed flange extends into the ball mill feed inlet.

[0008] Preferably, the feed bend is further provided with a positioning block, which is located on the side of the feed sleeve away from the tensioning flange and inside the ball mill inlet.

[0009] Preferably, there is a gap between the feeding sleeve and the positioning stop.

[0010] Preferably, the distance between the clamping sleeve and the feeding sleeve, and the distance between the clamping sleeve and the feeding bend, are both 6-10 mm.

[0011] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0012] 1. This utility model involves installing a feeding sleeve on the horizontal section of the feeding bend and mounting it to the outer wall of the ball mill inlet via a fixed flange. The contact surface between the fixed flange and the ball mill inlet is provided with a sealing layer and several sealing rings, and the ball mill inlet is provided with a matching sealing ring groove. This design greatly increases the contact area between the fixed flange and the outer wall of the ball mill inlet, achieving a tight fit, thereby effectively preventing material leakage and improving sealing performance.

[0013] 2. In this utility model, a clamping sleeve is provided between the feed bend and the feed sleeve, and the space between the clamping sleeve and the walls of the feed sleeve and the feed bend is filled with sealant. At the same time, a tensioning flange is fixed on the feed bend, and a tensioning bolt with a cylindrical block is threaded onto the tensioning flange. When the tensioning bolt is tightened, it can push the clamping sleeve into the ball mill inlet, which can exert a squeezing effect on the sealant, so that the sealant is tightly attached between the feed bend, the feed sleeve and the clamping sleeve, further preventing ore leakage and enhancing the sealing effect. Attached Figure Description

[0014] Figure 1 This is a diagram showing the connection relationship between the tensioning bolt and the clamping sleeve of this utility model;

[0015] Figure 2 This is an isometric drawing of the feed sleeve of this utility model;

[0016] Figure 3 This is a diagram showing the connection between the ball mill feed inlet and the fixed flange of this utility model;

[0017] Figure 4 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 5 This is a diagram showing the overall structure of the present invention and the assembly of the ball mill feed inlet.

[0019] In the diagram: 1. Feed bend; 2. Tensioning flange; 3. Tensioning bolt; 4. Compression sleeve; 5. Feed sleeve; 6. Positioning block; 7. Sealing material; 8. Ball mill inlet; 9. Fixed flange; 10. Sealing layer; 11. Sealing ring; 12. Sealing ring groove; 13. Cylindrical block. Detailed Implementation

[0020] 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.

[0021] To address the problem of incomplete sealing and easy leakage at the feed inlet of ball mills in existing technologies, the following technical solution is provided. Please refer to [link / reference]. Figure 1-5 ;

[0022] A device for improving the sealing performance of ball mill feed includes a feed bend 1, a feed sleeve 5 is sleeved on the horizontal section of the feed bend 1, a fixed flange 9 is provided at one end of the feed sleeve 5, and the feed sleeve 5 is installed on the outer wall of the ball mill inlet 8 through the fixed flange 9.

[0023] A sealing layer 10 is provided on the contact surface between the fixed flange 9 and the ball mill inlet 8. Several sealing rings 11 are provided on the sealing layer 10, and the center points of the sealing rings 11 coincide. The ball mill inlet 8 is provided with a sealing ring groove 12 that matches the sealing rings 11. The end of the feed sleeve 5 away from the fixed flange 9 extends into the ball mill inlet 8. The fixed flange 9 is installed on the outer wall of the ball mill inlet 8 by bolts. The sealing rings 11 pass into the sealing ring groove 12 and close, which greatly increases the contact area between the fixed flange 9 and the outer wall of the ball mill inlet 8 and achieves a tight fit, thereby preventing material leakage.

[0024] A clamping sleeve 4 is provided between the feed bend 1 and the feed sleeve 5. A sealing material 7 is provided between the clamping sleeve 4 and the pipe wall of the feed sleeve 5 and the feed bend 1. The sealing material 7 is made of PTFE series or adhesive core series material.

[0025] A tensioning flange 2 is fixed on the feed bend 1. A tensioning bolt 3 is threaded onto the tensioning flange 2. A cylindrical block 13 is provided at the tail end of the tensioning bolt 3. The cylindrical block 13 is inserted into one end of the compression sleeve 4 and is engaged with the compression sleeve 4. When the tensioning bolt 3 is tightened, the tensioning bolt 3 drives the cylindrical block 13 to rotate in the compression sleeve 4 and pushes the compression sleeve 4 to move into the ball mill feed inlet 8, which compresses the sealing material 7, so that the sealing material 7 is tightly attached between the feed bend 1, the feed sleeve 5 and the compression sleeve 4, thereby preventing the ore from leaking.

[0026] A positioning block 6 is also provided on the feed bend 1. The positioning block 6 is located on the side of the feed sleeve 5 away from the tension flange 2. The positioning block 6 is located inside the ball mill inlet 8. There is a gap between the feed sleeve 5 and the positioning block 6, which provides a certain deformation space for the sealing material 7. In addition, since the equipment will generate temperature changes during operation, a certain distance can allow the components to expand or contract to a certain extent, avoiding stress concentration or structural damage caused by material deformation, while also ensuring that the sealing effect is not affected.

[0027] The distance between the clamping sleeve 4 and the feeding sleeve 5, as well as the distance between the clamping sleeve 4 and the feeding bend 1, are both 6-10mm to ensure the thickness of the sealing material 7 to achieve the best sealing effect.

[0028] Working principle: The fixed flange 9 is installed on the outer wall of the ball mill inlet 8 by bolts. The sealing ring 11 is inserted into the sealing ring groove 12 and closed, which greatly increases the contact area between the fixed flange 9 and the outer wall of the ball mill inlet 8 and achieves a tight fit. Then, the tensioning bolt 3 is tightened. The tensioning bolt 3 drives the cylindrical block 13 to rotate in the clamping sleeve 4 and pushes the clamping sleeve 4 into the ball mill inlet 8, which compresses the sealing material 7, so that the sealing material 7 is tightly attached between the feed bend 1, the feed sleeve 5 and the clamping sleeve 4, thereby preventing the ore leakage.

[0029] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0030] 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.

Claims

1. A device for improving the sealing performance of ball mill feed, comprising a feed bend (1), characterized in that, A feeding sleeve (5) is fitted on the horizontal section of the feeding bend (1). One end of the feeding sleeve (5) is provided with a fixed flange (9). The feeding sleeve (5) is installed on the outer wall of the ball mill inlet (8) through the fixed flange (9). A sealing layer (10) is provided on the contact surface between the fixed flange (9) and the ball mill inlet (8). Several sealing rings (11) are provided on the sealing layer (10). The feeding bend (1) and the feeding sleeve (5) are connected by a fixed flange (9) and a fixed flange (9). A compression sleeve (4) is provided between the material sleeve (5), and a sealing material (7) is provided between the compression sleeve (4) and the pipe wall of the feeding sleeve (5) and the ore feeding bend (1); a tensioning flange (2) is fixed on the ore feeding bend (1), and a tensioning bolt (3) is threaded on the tensioning flange (2). A cylindrical block (13) is provided at the tail end of the tensioning bolt (3), and the cylindrical block (13) is inserted into one end of the compression sleeve (4) and snapped into the compression sleeve (4).

2. The device for improving the sealing performance of ball mill feed according to claim 1, characterized in that, The center points of the sealing ring (11) coincide, and the ball mill feed inlet (8) is provided with a sealing ring groove (12) that matches the sealing ring (11).

3. The device for improving the sealing performance of ball mill feed according to claim 2, characterized in that, The end of the feed sleeve (5) away from the fixed flange (9) extends into the ball mill feed inlet (8).

4. The device for improving the sealing performance of ball mill feed according to claim 3, characterized in that, The feed bend (1) is also provided with a positioning block (6), which is located on the side of the feed sleeve (5) away from the tension flange (2) and inside the ball mill inlet (8).

5. The device for improving the sealing performance of ball mill feed according to claim 4, characterized in that, There is a gap between the feeding sleeve (5) and the positioning block (6).

6. The device for improving the sealing performance of ball mill feed according to claim 5, characterized in that, The distance between the clamping sleeve (4) and the feeding sleeve (5) and the distance between the clamping sleeve (4) and the feeding bend (1) are both 6-10mm.

Images