Slurry running device of coal mill

Abstract

The utility model relates to the technical field of coal mill auxiliary equipment, and discloses a coal mill slurry running device which comprises a coal mill body and a base, the coal mill body is fixedly installed on the outer wall of the top of the base, a slurry running assembly is installed on the outer wall of the base, and the slurry running assembly comprises a material conveying box, a filtering box and a recycling box; the inner wall of the material conveying box is rotationally connected with a first spiral conveying rod, the inner wall of the filtering box is connected with a filtering plate in a sliding mode through a plurality of sliding frames, two cams are arranged below the filtering plate, protruding parts of the two cams abut against the filtering plate, and a flow guide plate is further arranged below the filtering plate. Through the arrangement of the material receiving port of the material conveying box located under the material outlet of the coal mill body and the communicating structure of the material conveying box and the filter box, the leaked slurry material can be rapidly and effectively collected, and the leaked slurry material can directly fall into the material receiving port after being discharged from the material outlet and is conveyed to the filter box in time by the first spiral conveying rod for subsequent treatment.

Description

Technical Field

[0001] The present application relates to the technical field of coal mill auxiliary equipment, and in particular to a coal mill slurry running device. Background Art

[0002] In the coal grinding process, ball mills are widely used as key equipment. However, during the operation of the ball mill, slurry loss often occurs due to various factors such as coal quality characteristics and improper control of coal grinding process parameters. Slurry loss not only leads to waste of coal resources, but also pollutes the working environment, such as corroding the ball mill and peripheral equipment, affecting the heat dissipation and normal operation of the equipment, etc.

[0003] At present, the treatment of slurry from ball mills for coal grinding mostly adopts a simple collection tank for collection and then manual cleaning. This treatment method has many disadvantages: on the one hand, the collection effect is poor, and it cannot effectively deal with a large amount of slurry, which easily causes the slurry to flow everywhere; on the other hand, manual cleaning is labor-intensive, and untimely cleaning will cause the slurry to accumulate for a long time, further aggravating equipment damage and environmental pollution. In addition, the existing treatment method cannot reasonably treat and reuse the slurry, resulting in a waste of resources, and does not meet the production requirements of energy conservation and emission reduction. Therefore, a coal mill slurry device is proposed to solve the above problems. Utility Model Content

[0004] The utility model aims to provide a coal mill slurry running device, which can effectively collect the coal mill slurry running, treat and reuse the running slurry, reduce waste and environmental pollution, and ensure the normal operation of the coal mill.

[0005] The present application provides a coal mill slurry running device adopts the following technical solution:

[0006] A coal mill slurry running device comprises a coal mill body and a base, wherein the coal mill body is fixedly mounted on the top outer wall of the base, and a slurry running assembly is mounted on the outer wall of the base;

[0007] The slurry running assembly includes a feed box, a filter box and a recovery box. The feed box is connected to one end adjacent to the filter box. The inner wall of the feed box is rotatably connected to a first spiral conveying rod. The inner wall of the filter box is slidably connected to a filter plate through a plurality of sliding frames. The filter plate is tilted. Two cams are arranged below the filter plate. The raised parts of the two cams abut against the filter plate. A guide plate is also arranged below the filter plate. The guide plate is tilted and fixedly connected to the inner wall of the filter box.

[0008] The filter box is provided with a discharge port at one end away from the feed box, and the discharge port is located between the guide plate and the filter plate. The filter box is connected to the recovery box through the discharge port, and the inner wall of the recovery box is rotatably connected with a second spiral conveying rod.

[0009] Preferably, one end of the coal mill body is provided with a discharge port, and the other end thereof is provided with a recovery port. A material receiving port is provided on the outer wall of the top of the material conveying box. The material receiving port is located directly below the discharge port. The outer wall of the recovery box near the top end is fixedly connected to the recovery port, and the coal mill body is communicated with the recovery box through the recovery port.

[0010] Preferably, a first motor is fixedly installed on the outer wall of one end of the material conveying box away from the filter box. The end of the output shaft of the first motor penetrates through the material conveying box and is fixedly connected to one end of a first screw conveyor rod.

[0011] Preferably, a second motor is fixedly installed on the outer wall of the top end of the recovery box. The end of the output shaft of the second motor penetrates through the recovery box and is fixedly connected to one end of a second screw conveyor rod.

[0012] Preferably, a transmission shaft is fixedly connected to the outer walls of the two cams. The two ends of the transmission shaft are rotatably connected to the inner wall of the filter box. A waste material port is provided on the outer wall of one end of the filter box away from the material conveying box. The waste material port is located above the filter plate.

[0013] Preferably, a third motor is fixedly installed on the outer wall of one side of the filter box. The end of the output shaft of the third motor penetrates through the filter box and is fixedly connected to one end of the transmission shaft.

[0014] Preferably, a spring is sleeved on the outer wall of the sliding frame. One end of the spring is fixedly connected to the outer wall of the sliding frame, and the other end thereof is fixedly connected to the outer wall of the filter plate.

[0015] Preferably, a feed port is provided on the outer wall of the coal mill body for adding raw materials.

[0016] In summary, the present application includes the following beneficial technical effects:

[0017] 1. By providing the material receiving port of the material conveying box located directly below the discharge port of the coal mill body and the communication structure between the material conveying box and the filter box, the running slurry materials can be collected quickly and effectively. After the running slurry materials are discharged from the discharge port, they can directly fall into the material receiving port and be timely conveyed to the filter box by the first screw conveyor rod for subsequent treatment. Compared with the existing simple collection tank, the collection effect is better, which can effectively cope with a large amount of running slurry, avoid the running slurry flowing everywhere, ensure the cleanliness of the working environment, and at the same time reduce the potential damage to the surrounding equipment caused by the overflow of the running slurry;

[0018] 2. This device adopts an automated processing flow. By driving the first screw conveyor, the second screw conveyor, and the cam to rotate through the first motor, the second motor, and the third motor respectively, it realizes the automated operations of the processes such as the transportation, filtration, and recycling of the leaking slurry materials, greatly reducing the manual participation, significantly reducing the labor intensity of the workers, improving the work efficiency, and being able to handle the leaking slurry in a timely manner to avoid damage to the equipment caused by the long-term accumulation of the leaking slurry and further environmental pollution.

[0019] 3. An inclined filter plate and a deflector plate are arranged in the filter box of this device. Cooperating with the vibration of the filter plate driven by the cam, it can efficiently filter the leaking slurry materials. The filter plate can intercept the waste materials and discharge them through the waste material outlet, while the filtered materials are guided by the deflector plate into the recycling box. The second screw conveyor in the recycling box transports the materials to the recycling outlet and sends them back to the main body of the coal mill for reuse. This process realizes the reasonable treatment and effective reuse of the leaking slurry materials, reducing the waste of resources. Brief Description of the Drawings

[0020] Figure 1 is the overall schematic diagram of the application embodiment;

[0021] Figure 2 is the three-dimensional schematic diagram of the application embodiment;

[0022] Figure 3 is the first partial cross-sectional view of the application embodiment;

[0023] Figure 4 is the second partial cross-sectional view of the application embodiment;

[0024] Figure 5 is Figure 4 the enlarged schematic diagram of the structure at A in

[0025] Explanation of the Reference Numerals in the Drawings: 1, main body of the coal mill; 2, discharge port; 3, recycling outlet; 4, feed port; 5, material conveying box; 6, first screw conveyor; 7, first motor; 8, filter box; 9, filter plate; 10, sliding frame; 11, spring; 12, transmission shaft; 13, cam; 14, deflector plate; 15, waste material outlet; 16, discharge port; 17, recycling box; 18, second screw conveyor; 19, second motor; 20, third motor; 21, material receiving port; 22, base. Detailed Description of the Embodiment

[0026] The following further elaborates on this application in conjunction with the attached Figures 1-5 drawings.

[0027] The embodiment of this application discloses a leaking slurry device for a coal mill. Refer to Figures 1-5, a coal mill slurry overflow device, which consists of a coal mill body 1, a base 22, and a slurry overflow assembly installed on the outer wall of the base 22. The coal mill body 1 is fixedly installed on the top outer wall of the base 22. The slurry overflow assembly includes a material conveying box 5, a filtering box 8, and a recovery box 17.

[0028] One end of the coal mill body 1 is provided with a discharge port 2, the other end is provided with a recovery port 3, and the outer wall is also provided with a feed port 4 for adding raw materials. When the coal mill is working, the raw materials enter the coal mill body 1 from the feed port 4 for grinding, and a part of the ground materials is discharged from the discharge port 2.

[0029] The material receiving port 21 on the top outer wall of the material conveying box 5 is located directly below the discharge port 2 and is used to receive the overflow slurry discharged from the discharge port 2. A first motor 7 is fixedly installed on the outer wall of one end of the material conveying box 5 away from the filtering box 8. The end of the output shaft of the first motor 7 penetrates through the material conveying box 5 and is fixedly connected to one end of the first spiral conveyor rod 6. When the first motor 7 is started, it drives the first spiral conveyor rod 6 to rotate in the material conveying box 5, and conveys the overflow slurry to the end connected to the filtering box 8.

[0030] The inner wall of the filtering box 8 is slidably connected with an inclined filter plate 9 through a plurality of sliding frames 10. A spring 11 is sleeved on the outer wall of the sliding frame 10. One end of the spring 11 is fixedly connected to the outer wall of the sliding frame 10, and the other end is fixedly connected to the outer wall of the filter plate 9. Two cams 13 are arranged below the filter plate 9. The outer walls of the two cams 13 are fixedly connected with a transmission shaft 12. The two ends of the transmission shaft 12 are rotatably connected to the inner wall of the filtering box 8. A third motor 20 is fixedly installed on the outer wall of one side of the filtering box 8. The end of the output shaft of the third motor 20 penetrates through the filtering box 8 and is fixedly connected to one end of the transmission shaft 12. When the third motor 20 is started, it drives the transmission shaft 12 to rotate, thereby causing the cams 13 to rotate. The convex parts of the cams 13 abut against the filter plate 9. With the cooperation of the spring 11, the filter plate 9 generates vibration, preventing the materials from blocking the mesh holes of the filter plate 9 and improving the filtering efficiency.

[0031] A guide plate 14 which is inclined and fixed on the inner wall of the filtering box 8 is also arranged below the filter plate 9 and is used to guide the filtered materials to flow towards the discharge port 16.

[0032] A waste material port 15 is arranged on the outer wall of the end of the filtering box 8 facing away from the material conveying box 5 and is located above the filter plate 9 for discharging the waste materials intercepted by the filter plate 9.

[0033] The filter box 8 is communicated with the recycling box 17 through the discharge port 16. The outer wall of the recycling box 17 near the top is fixedly connected to the recycling port 3, and the coal mill body 1 is communicated with the recycling box 17 through the recycling port 3. A second motor 19 is fixedly installed on the outer wall of the top of the recycling box 17. The end of the output shaft of the second motor 19 penetrates through the recycling box 17 and is fixedly connected to one end of the second screw conveyor 18. When the second motor 19 is started, it drives the second screw conveyor 18 to rotate in the recycling box 17, conveying the filtered material to the recycling port 3 and sending it back to the coal mill body 1 for reuse.

[0034] The implementation principle of a coal mill slurry overflow device in an embodiment of this application is as follows: When the coal mill body 1 is working, raw materials enter from the feed port 4 for grinding, and the generated slurry overflow material is discharged from the discharge port 2 and falls into the material receiving port 21 of the material conveying box 5;

[0035] The first motor 7 is started, and the first screw conveyor 6 conveys the slurry overflow material to the filter box 8;

[0036] After the material enters the filter box 8, it lands on the filter plate 9. The third motor 20 is started to rotate the cam 13, driving the filter plate 9 to vibrate, and the material is filtered on the filter plate 9, and the waste material is discharged from the waste material port 15;

[0037] The filtered material flows towards the discharge port 16 through the guide plate 14 and enters the recycling box 17;

[0038] The second motor 19 is started, and the second screw conveyor 18 conveys the material to the recycling port 3 and re-enters the coal mill body 1 for reuse.

[0039] The above are all preferred embodiments of this application. The protection scope of this application is not limited accordingly. Therefore, all equivalent changes made according to the structure, shape, and principle of this application should be covered within the protection scope of this application.

Claims

1. A coal mill slurry running device, comprising a coal mill body (1) and a base (22), characterized in that: The coal mill body (1) is fixedly mounted on the top outer wall of a base (22), and a slurry running assembly is mounted on the outer wall of the base (22); The pulp running assembly comprises a feed box (5), a filter box (8) and a recovery box (17); the feed box (5) is connected to one end adjacent to the filter box (8); the inner wall of the feed box (5) is rotatably connected to a first spiral conveying rod (6); the inner wall of the filter box (8) is slidably connected to a filter plate (9) via a plurality of sliding frames (10); the filter plate (9) is arranged obliquely; two cams (13) are arranged below the filter plate (9); the protrusions of the two cams (13) abut against the filter plate (9); a guide plate (14) is also arranged below the filter plate (9); the guide plate (14) is arranged obliquely and fixedly connected to the inner wall of the filter box (8); A discharge port (16) is provided at one end of the filter box (8) facing away from the feed box (5); the discharge port (16) is located between the guide plate (14) and the filter plate (9); the filter box (8) is connected to the recovery box (17) via the discharge port (16); and a second spiral conveying rod (18) is rotatably connected to the inner wall of the recovery box (17).

2. A coal mill slurry running device according to claim 1, characterized in that: A discharge port (2) is provided at one end of the coal mill body (1), and a recovery port (3) is provided at the other end thereof; a receiving port (21) is provided on the top outer wall of the feed box (5); the receiving port (21) is located directly below the discharge port (2); an outer wall of the recovery box (17) near the top is fixedly connected to the recovery port (3), and the coal mill body (1) is connected to the recovery box (17) via the recovery port (3).

3. A coal mill slurry running device according to claim 2, characterized in that: A first motor (7) is fixedly mounted on the outer wall of one end of the feed box (5) away from the filter box (8), and the output shaft end of the first motor (7) passes through the feed box (5) and is fixedly connected to one end of a first spiral conveying rod (6).

4. A coal mill slurry running device according to claim 3, characterized in that: A second motor (19) is fixedly mounted on the top outer wall of the recovery box (17), and the output shaft end of the second motor (19) passes through the recovery box (17) and is fixedly connected to one end of the second spiral conveying rod (18).

5. A coal mill slurry running device according to claim 1, characterized in that: The outer walls of the two cams (13) are fixedly connected to a transmission shaft (12), and the two ends of the transmission shaft (12) are rotatably connected to the inner wall of the filter box (8). The outer wall of one end of the filter box (8) facing away from the feed box (5) is provided with a waste opening (15), and the waste opening (15) is located above the filter plate (9).

6. A coal mill slurry running device according to claim 5, characterized in that: A third motor (20) is fixedly mounted on an outer wall of one side of the filter box (8), and a terminal end of an output shaft of the third motor (20) passes through the filter box (8) and is fixedly connected to one end of a transmission shaft (12).

7. A coal mill slurry running device according to claim 6, characterized in that: A spring (11) is sleeved on the outer wall of the sliding frame (10); one end of the spring (11) is fixedly connected to the outer wall of the sliding frame (10), and the other end of the spring (11) is fixedly connected to the outer wall of the filter plate (9).

8. A coal mill slurry running device according to claim 1, characterized in that: The outer wall of the coal mill body (1) is provided with a feed inlet (4), and the feed inlet (4) is used for adding raw materials.

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