Noise reduction type coal mill

Abstract

The utility model relates to the technical field of coal mills, in particular to a noise reduction type coal mill which comprises a base, first partition plates, clamping plates, sound insulation plates and a coal mill body, the first partition plates are installed at the front end and the rear end of the outer wall of the base, second partition plates are installed at the left end and the right end of the base, and sleeves are fixedly connected to the middles of the inner sides of the first partition plates. A buffer assembly is arranged in the sleeve, a clamping plate is arranged on the inner side of the first partition plate, a sound insulation plate is placed in the middle of the interior of the clamping plate, and a coal mill body is placed in the middle of the upper end of the outer wall of the base. After the first partition plate is installed, the clamping plates are used for being matched with the surface of the outer wall of the coal mill body, so that when the coal mill body operates and is used, the damping blocks are pushed by the clamping plates, the damping blocks can move and rub on the inner walls of the clamping grooves, part of force generated during vibration is counteracted and buffered, and the service life of the coal mill is prolonged. And noise possibly generated by collision is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of coal mills, in particular to a noise-reducing coal mill. Background Technique

[0002] A coal mill is a machine that crushes coal blocks and grinds them into coal powder. It is an important auxiliary equipment for pulverized coal furnaces. The coal grinding process is a process in which coal is crushed and its surface area continuously increases. Coal is ground into coal powder in a coal mill mainly through three methods: crushing, smashing, and grinding;

[0003] However, in the prior art, when some coal mills are in use, they may generate relatively high-decibel noise during coal grinding, posing some health hazards to the surrounding workers. At the same time, if the sound generated by the collision of the outer wall of the coal mill occurs, it may also cause some damage to the coal mill itself. For this reason, we propose a noise-reducing coal mill to solve the above problems. Content of the Utility Model

[0004] The purpose of the utility model is to provide a noise-reducing coal mill to solve the problems mentioned in the above background technique, that is, it may generate relatively high-decibel noise during coal grinding, posing some health hazards to the surrounding workers, and at the same time, if the sound generated by the collision of the outer wall of the coal mill occurs, it may also cause some damage to the coal mill itself.

[0005] To achieve the above purpose, the utility model provides the following technical solution: A noise-reducing coal mill, including a base, a first partition, a clamping plate, a sound insulation board, and a coal mill body. The front and rear ends of the outer wall of the base are provided with first partitions, and the left and right ends of the base are provided with second partitions. The middle of the inner side of the first partition is fixedly connected with a sleeve. A buffer assembly is arranged inside the sleeve, and the buffer assembly is used to reduce the vibration generated when the coal mill body is in use. A clamping plate is arranged inside the first partition, and a sound insulation board is placed in the middle of the clamping plate. The coal mill body is placed in the middle of the upper end of the outer wall of the base.

[0006] Preferably, guide grooves are opened at the inner corners of the first partition, and guide blocks are fixedly connected to the outer corners of the second partition. The outer surface of the guide block is adapted to the inner surface of the guide groove.

[0007] Preferably, the buffer assembly includes a clamping groove. A clamping groove is opened in the middle of the sleeve, and a spring is arranged on the inner surface of the clamping groove. The end of the outer wall of the spring abuts against a damping block, and the outer surface of the damping block is fitted to the inner surface of the clamping groove.

[0008] Preferably, a telescopic rod is fixedly connected to the outer wall end of the damping block, and a clamping plate is fixedly connected to the outer wall end of the telescopic rod. A soft pad is arranged on the outer wall surface of the clamping plate. The outer wall surface of the clamping plate is adapted to the outer wall of the coal mill body. A sound insulation groove is formed in the middle of the clamping plate, and the inner wall of the sound insulation groove is adapted to the outer wall of the sound insulation board.

[0009] Preferably, a sliding groove is formed in the upper side of the clamping plate, and a bolt is inserted in the middle of the inner wall of the sliding groove. A torsion block is fixedly connected to the outer wall end of the bolt. A thread groove adapted to the outer wall surface of the bolt is formed in the inner wall surface of the sound insulation groove.

[0010] Preferably, the outer wall corners of the torsion block are all arc-shaped corners, and the outer wall surface of the torsion block is smooth and has no sharp edges.

[0011] Compared with the prior art, the beneficial effects of the present utility model are as follows: When in use, after the first partition board is installed, the clamping plate can be used to adapt to the outer wall surface of the coal mill body. Thus, when the coal mill body is running, through the pushing of the damping block by the clamping plate, the damping block can move and rub on the inner wall of the clamping groove, so as to offset and buffer part of the force generated during vibration, reduce the noise that may be generated by collision, and at the same time, the sound insulation board placed inside the clamping plate can also partially insulate the overall internal space, reducing part of the influence caused by too much noise. Description of the Drawings

[0012] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0013] Figure 1 It is a front view structural schematic diagram of the present utility model;

[0014] Figure 2 It is a rear view sectional structural schematic diagram of the present utility model;

[0015] Figure 3 It is a top view structural schematic diagram of the present utility model;

[0016] Figure 4 For the present utility model Figure 2 A partial enlarged schematic diagram of A in it;

[0017] Figure 5 For the present utility model Figure 2 A partial enlarged schematic diagram of B in it.

[0018] In the figure: 1. Base; 2. First partition; 3. Guide groove; 4. Second partition; 5. Guide block; 6. Sleeve; 7. Card slot; 8. Spring; 9. Damping block; 10. Telescopic rod; 11. Clamping plate; 12. Sound insulation groove; 13. Sound insulation board; 14. Slide groove; 15. Bolt; 16. Torsion block; 17. Threaded groove; 18. Coal mill body. Specific implementation manner

[0019] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0020] Please refer to Figures 1-5 , an embodiment provided by the present invention: a noise-reducing coal mill, including a base 1, a first partition 2, a clamping plate 11, a sound insulation board 13 and a coal mill body 18. The front and rear ends of the outer wall of the base 1 are provided with a first partition 2, and the left and right ends of the base 1 are provided with a second partition 4. The middle of the inner side of the first partition 2 is fixedly connected with a sleeve 6. A buffer assembly is arranged inside the sleeve 6, and the buffer assembly is used to reduce the vibration generated when the coal mill body 18 is used. A clamping plate 11 is arranged inside the first partition 2, and a sound insulation board 13 is placed in the middle of the clamping plate 11. The coal mill body 18 is placed in the middle of the upper end of the outer wall of the base 1;

[0021] Furthermore, guide grooves 3 are opened at the inner corners of the first partition 2, and guide blocks 5 are fixedly connected to the outer corners of the outer wall of the second partition 4. The outer surface of the guide block 5 is adapted to the inner surface of the guide groove 3. This structure enables both the second partition 4 and the first partition 2 to be spliced on the upper end of the outer wall of the base 1, and an existing sound insulation cover plate can also be used to seal the upper ends of the first partition 2 and the second partition 4. Moreover, the upper surface of the base 1 has slots adapted to the first partition 2 and the second partition 4. When the coal mill body 18 is not in use, the second partition 4 can also be disassembled to avoid affecting the floor area.

[0022] Furthermore, the buffer assembly includes a card slot 7. A card slot 7 is opened in the middle of the inside of the sleeve 6, and a spring 8 is arranged on the inner surface of the card slot 7. The outer end of the spring 8 abuts against a damping block 9, and the outer surface of the damping block 9 fits with the inner surface of the card slot 7. When this structure is in use, part of the impact force can be buffered and unloaded by the friction between the outer wall of the damping block 9 and the inner wall of the card slot 7.

[0023] Furthermore, a telescopic rod 10 is fixedly connected to the outer wall end of the damping block 9, and a clamping plate 11 is fixedly connected to the outer wall end of the telescopic rod 10. A soft pad is arranged on the outer wall surface of the clamping plate 11. The outer wall surface of the clamping plate 11 is adapted to the outer wall of the coal mill body 18. A sound insulation groove 12 is formed in the middle of the interior of the clamping plate 11, and the inner wall of the sound insulation groove 12 is adapted to the outer wall of the sound insulation board 13. This structure contacts and fits with the coal mill body 18 through the clamping plate 11, so as to buffer part of the vibration force of the coal mill body 18.

[0024] Furthermore, a sliding groove 14 is formed in the upper side of the clamping plate 11, and a bolt 15 is inserted in the middle of the inner wall of the sliding groove 14. A torsion block 16 is fixedly connected to the outer wall end of the bolt 15. A thread groove 17 adapted to the outer wall surface of the bolt 15 is formed on the inner wall surface of the sound insulation groove 12. When this structure is in use, the bolt 15 can be inserted to fix the sound insulation board 13 placed in the sound insulation groove 12, so that it can be prevented from falling off the interior of the sound insulation groove 12 during use. The sound insulation board 13 is a prior art and is internally provided with a sound-absorbing cotton material.

[0025] Furthermore, the outer wall corners of the torsion block 16 are all set as rounded corners, and the outer wall surface of the torsion block 16 is smooth and has no sharp edges. This structure can avoid damage to the body part caused by the sharp edges between the structures during use.

[0026] Working principle: When in use, the coal mill body 18 can be placed in the middle of the outer wall of the base 1, and then the first partition plate 2 and the second partition plate 4 can be spliced completely through the mutual adaptation between the guide groove 3 and the guide block 5. After the first partition plate 2 and the second partition plate 4 are installed, the clamping plate 11 will be in contact with the outer wall surface of the coal mill body 18, and at the same time, part of the telescopic rod 10 will be squeezed, so as to drive the damping block 9 to squeeze the spring 8. The spring 8 will generate a restoring force due to being compressed, so that the clamping plate 11 can maintain a certain stability when clamping the coal mill body 18. After that, when the coal mill body 18 vibrates, part of the vibration force can also be buffered and offset when the damping block 9 moves on the inner wall of the clamping groove 7. After the clamping plate 11 fits the coal mill body 18, the sound insulation board 13 can be placed in the sound insulation groove 12. Then, the bolt 15 can be inserted through the sliding groove 14 so that its end is adapted to the thread groove 17, and then rotated through the torsion block 16, so that the end of the bolt 15 performs a thread movement with the inner wall of the thread groove 17, so as to seal the upper side of the sound insulation groove 12 and prevent the sound insulation board 13 from falling off during use. The above is the whole working principle of the present invention.

[0027] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-mentioned exemplary embodiments, and the present utility model can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-limiting. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, all changes falling within the meaning and scope of the equivalent elements of the claims are intended to be embraced within the present utility model. Any reference signs in the claims should not be construed as limiting the claims involved.

Claims

1. A noise reduction type coal mill, comprising a base (1), a first partition (2), a clamping plate (11), a sound insulation plate (13) and a coal mill body (18), characterized in that: A first partition (2) is installed at the front and rear ends of the outer wall of the base (1), and a second partition (4) is installed at the left and right ends of the base (1). A sleeve (6) is fixedly connected to the middle of the inner side of the first partition (2). A buffer component is arranged inside the sleeve (6), and the buffer component is used to reduce the vibration generated by the coal mill body (18) when it is in use. A clamping plate (11) is arranged on the inner side of the first partition (2), and a sound insulation plate (13) is placed in the middle of the inner side of the clamping plate (11). The coal mill body (18) is placed in the middle of the upper end of the outer wall of the base (1).

2. A noise reduction coal mill according to claim 1, characterized in that: A guide groove (3) is provided at the inner corner of the first partition plate (2), and a guide block (5) is fixedly connected to the outer corner of the second partition plate (4), and the outer wall surface of the guide block (5) is matched with the inner wall surface of the guide groove (3).

3. A noise reduction coal mill according to claim 1, characterized in that: The buffer assembly comprises a slot (7), the slot (7) is provided in the middle of the interior of the sleeve (6), a spring (8) is provided on the inner wall surface of the slot (7), a damping block (9) is abutted against the outer wall end of the spring (8), and the outer wall surface of the damping block (9) is in contact with the inner wall surface of the slot (7).

4. A noise reduction coal mill according to claim 3, characterized in that: The outer wall end of the damping block (9) is fixedly connected to a telescopic rod (10), and the outer wall end of the telescopic rod (10) is fixedly connected to a clamping plate (11), and a soft cushion is provided on the outer wall surface of the clamping plate (11), and the outer wall surface of the clamping plate (11) is matched with the outer wall of the coal mill body (18), and a sound insulation groove (12) is provided in the middle of the inner part of the clamping plate (11), and the inner wall of the sound insulation groove (12) is matched with the outer wall of the sound insulation board (13).

5. A noise reduction coal mill according to claim 4, characterized in that: A slide groove (14) is provided on the upper side of the clamping plate (11), and a bolt (15) is inserted in the middle of the inner wall of the slide groove (14), and a torsion block (16) is fixedly connected to the outer wall end of the bolt (15), and a screw groove (17) adapted to the outer wall surface of the bolt (15) is provided on the inner wall surface of the sound insulation groove (12).

6. A noise reduction coal mill according to claim 5, characterized in that: The outer wall corners of the twist block (16) are all arranged as arc-shaped corners, and the outer wall surface of the twist block (16) is smooth without edges and corners.

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