Dustproof device of ball mill

Abstract

The utility model discloses a dustproof device of a ball mill, which comprises a support, a stock bin is mounted on the support, a ball mill body is mounted in an inner cavity of the stock bin, a mill platform is mounted at the top of the ball mill body, a fan is fixedly connected to the upper surface of the mill platform, an air inlet end of the fan is fixedly connected with an air inlet pipe, and an air outlet end of the fan is fixedly connected with an air outlet pipe. The air inlet pipe is communicated with the stock bin, and negative pressure is formed in the stock bin through the draught fan. According to the anti-dust device of the ball mill, the fan and the air inlet pipe are arranged, air in the stock bin is pumped out, negative pressure is formed, dust at the discharging port cannot escape outwards, diffusion of the dust is reduced, and therefore the anti-dust device of the ball mill has the effect of preventing the dust from drifting away, and the body health of workers is ensured.

Description

Technical Field

[0001] The present application relates to the technical field of ball mills, and in particular to a dust prevention device for a ball mill. Background Art

[0002] Ball mill is a commonly used grinding equipment in mining, building materials and chemical industries. It uses grinding balls to impact and grind materials. The structure of the ball mill is mainly composed of transmission device, grinding chamber, feeding and discharging device, bearings and sealing device. The transmission device is responsible for driving the grinding balls to rotate; the grinding chamber is the main part of the ball mill, which is used to load materials and grinding balls; the feeding and discharging device is used to control the feeding and discharging of materials; the bearings are used to support the rotation of the grinding balls; and the sealing device is responsible for preventing dust and impurities from entering the grinding chamber.

[0003] After searching, a Chinese patent with publication number CN 114345481 A discloses an environmentally friendly ore ball mill with a dustproof device, which prevents dust from floating out during feeding by configuring a feeding component to be composed of a hopper, a first feeding channel and a second feeding channel, and arranging a dustproof component composed of a first dustproof plate and a second dustproof plate in the first feeding channel. However, in actual use, dust will also float out when the ball mill is discharging, which will be inhaled by workers and affect their health. Therefore, a dustproof device for a ball mill is proposed to solve the above problem. Summary of the invention

[0004] The purpose of the utility model is to provide a dust prevention device for a ball mill to solve the problems raised in the above background technology.

[0005] The present application embodiment adopts the following technical solutions:

[0006] A dust prevention device for a ball mill comprises a bracket, a silo is mounted on the bracket, a ball mill body is mounted in the inner cavity of the silo, a mill platform is mounted on the top of the ball mill body, a fan is fixedly connected to the upper surface of the mill platform, an air inlet end of the fan is fixedly connected to an air inlet pipe, and the air inlet pipe is communicated with the silo, and the fan forms a negative pressure inside the silo.

[0007] Preferably, a dust removal assembly is fixedly connected to the upper surface of the grinding mill platform, an air outlet end of the fan is fixedly connected to an air outlet pipe, and the air outlet pipe is in communication with the dust removal assembly.

[0008] Preferably, the dust removal assembly comprises a box body fixedly connected to the upper surface of the grinding mill platform, and a filter screen is arranged inside the box body.

[0009] Preferably, the inner wall of the box is rotatably connected to a rotating shaft, a plurality of rotating blades are fixedly connected to the surface of the rotating shaft, the outlet end of the air outlet pipe is located below the rotating blades, a socket is opened on the surface of the box, and a collection box is plugged into the inner wall of the socket.

[0010] Preferably, a slide groove is provided on the surface of the box body, a slider is slidably connected to the inner wall of the slide groove, an installation frame is fixedly connected to the opposite surfaces of the two sliders, the surface of the filter net is detachably connected to the inner wall of the installation frame, the upper surface of the box body is detachably connected to a box cover, an air outlet is provided on the upper surface of the box cover, and a spring is fixedly connected to the position of the lower surface of the box cover corresponding to the slider.

[0011] Preferably, a slide rod is slidably connected to one side of the box body, an eccentric block is rotatably connected to one side of the box body, the eccentric block is fixedly connected to the rotating shaft, the slider extends to the outside of the box body, the slide rod can drive the slider to move upward, and the width of the slider is greater than the width of the slide groove.

[0012] Preferably, a feed pipe connected to a silo is fixedly connected to the lower surface of the mill platform, a feed hopper connected to the feed pipe is fixedly connected to the upper surface of the mill platform, and a discharge hopper is formed at the bottom of the silo.

[0013] At least one of the above technical solutions adopted in the embodiments of the present application can achieve the following beneficial effects:

[0014] Firstly, in the utility model, by arranging a fan and an air inlet pipe, the air in the silo is extracted to form a negative pressure, so that the dust at the discharge port cannot escape to the outside, reducing the diffusion of dust, so that the dust prevention device of the ball mill has the effect of preventing dust from drifting and ensuring the health of workers.

[0015] Secondly, in the utility model, by setting a filter, the air in the box is discharged to the outside after dust removal, preventing dust from being discharged into the air again. By setting rotating blades, the air mixed with dust collides with the rotating blades during the flow, reducing the kinetic energy of the dust, causing it to fall into the collection box under its own gravity, thereby making the ball mill dust prevention device have the effect of dust separation.

[0016] Thirdly, in the utility model, by arranging the filter screen above the rotating blades, dust is not easily attached to the surface of the filter screen to avoid clogging. The eccentric block is driven to rotate by the rotating shaft, and then the slide bar is intermittently pushed to move upward, thereby driving the installation frame to move upward. With the cooperation of the spring, the installation frame drives the filter screen to vibrate up and down, further reducing the adhesion of dust and avoiding the filter screen from being blocked, so that the dustproof device of the ball mill has the effect of preventing the filter screen from being blocked. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0018] Figure 1 : A three-dimensional structural schematic diagram of the utility model;

[0019] Figure 2 : A front view structural diagram of the utility model;

[0020] Figure 3 The following is a schematic diagram of the cross-sectional structure of the box body of the utility model;

[0021] Figure 4 For: the utility model Figure 3 A schematic diagram of the enlarged structure at A in the middle;

[0022] Figure 5 Schematic diagram of the cross-sectional structure of the grinding machine platform and the feed hopper of the utility model.

[0023] In the figure: 1. bracket; 2. silo; 3. ball mill body; 4. mill platform; 5. fan; 6. air inlet pipe; 7. dust removal assembly; 701. box body; 702. filter screen; 703. rotating shaft; 704. rotating blade; 705. collecting box; 8. air outlet pipe; 9. slide slot; 10. slider; 11. mounting frame; 12. box cover; 13. air outlet; 14. spring; 15. slide rod; 16. eccentric block; 17. feed pipe; 18. feed hopper; 19. discharge hopper. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical solution and advantages of the present application clearer, the technical solution of the present application will be clearly and completely described below in combination with the specific embodiments of the present application and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present application.

[0025] The technical solutions provided by various embodiments of the present application are described in detail below in conjunction with the accompanying drawings.

[0026] See also Figure 1-5 , the utility model provides a technical solution for a ball mill dust prevention device:

[0027] A dust prevention device for a ball mill comprises a bracket 1, a silo 2 is mounted on the bracket 1, a ball mill body 3 is mounted in the inner cavity of the silo 2, a mill platform 4 is mounted on the top of the ball mill body 3, a fan 5 is fixedly connected to the upper surface of the mill platform 4, an air inlet end of the fan 5 is fixedly connected to an air inlet pipe 6, and the air inlet pipe 6 is communicated with the silo 2, the fan 5 forms a negative pressure inside the silo 2, and by arranging the fan 5 and the air inlet pipe 6, the air in the silo 2 is extracted to form a negative pressure, thereby preventing dust at the discharge port from escaping to the outside, thereby reducing the diffusion of dust.

[0028] The upper surface of the grinding mill platform 4 is fixedly connected with a dust removal component 7, the outlet end of the fan 5 is fixedly connected with an outlet pipe 8, and the outlet pipe 8 is connected with the dust removal component 7. By setting the dust removal component 7, it is ensured that dust cannot float into the air again.

[0029] The dust removal assembly 7 includes a box 701 fixedly connected to the upper surface of the grinding mill platform 4. A filter screen 702 is arranged inside the box 701. The filter screen 702 is arranged to separate air and dust so that dust cannot be discharged into the air.

[0030] The inner wall of the box body 701 is rotatably connected to a rotating shaft 703, and a plurality of rotating blades 704 are fixedly connected to the surface of the rotating shaft 703. The outlet end of the air outlet pipe 8 is located below the rotating blades 704. A socket is provided on the surface of the box body 701, and a collecting box 705 is plugged into the inner wall of the socket. By setting the rotating blades 704, air mixed with dust collides with the rotating blades 704 during flow, thereby reducing the kinetic energy of the dust and causing it to fall into the collecting box 705 under its own gravity.

[0031] A slide groove 9 is provided on the surface of the box body 701, and a slider 10 is slidably connected to the inner wall of the slide groove 9, and the opposite surfaces of the two sliders 10 are fixedly connected to the installation frame 11. The surface of the filter screen 702 is detachably connected to the inner wall of the installation frame 11, and the upper surface of the box body 701 is detachably connected to a box cover 12. An air outlet 13 is provided on the upper surface of the box cover 12, and a spring 14 is fixedly connected to the lower surface of the box cover 12 at a position corresponding to the slider 10. By setting the slider 10, the installation frame 11 can drive the filter screen 702 to move up and down, and with the cooperation of the spring 14, the filter screen 702 vibrates up and down to prevent it from being blocked by dust.

[0032] A slide bar 15 is slidably connected to one side of the box body 701, and an eccentric block 16 is rotatably connected to one side of the box body 701. The eccentric block 16 is fixedly connected to the rotating shaft 703, and the slider 10 extends to the outside of the box body 701. The slide bar 15 can drive the slider 10 to move upward. The width of the slider 10 is greater than the width of the slide groove 9. The filter screen 702 is set above the rotating leaf 704, so that dust is not easy to adhere to the surface of the filter screen 702 to avoid it being blocked. The eccentric block 16 is driven to rotate by the rotating shaft 703, and then the slide bar 15 is intermittently pushed to move upward, and then the installation frame 11 is driven to move upward. With the cooperation of the spring 14, the installation frame 11 drives the filter screen 702 to vibrate up and down, further reducing the adhesion of dust and avoiding the filter screen 702 from being blocked.

[0033] The lower surface of the mill platform 4 is fixedly connected with a feed pipe 17 connected to the silo 2, and the upper surface of the mill platform 4 is fixedly connected with a feed hopper 18 connected to the feed pipe 17. A discharge hopper 19 is formed at the bottom of the silo 2. The material is fed into the ball mill body 3 through the feed hopper 18 and the feed pipe 17, and the material is conveniently discharged through the discharge hopper 19.

[0034] Working principle: When the ball mill dust prevention device is used, the user first uses the feed hopper 18 and the feed pipe 17 to feed the material into the ball mill body 3, and then starts the ball mill body 3 to grind the material. The ground material is discharged through the discharge hopper 19. In this process, the fan 5 is started, and the fan 5 cooperates with the air inlet pipe 6 to extract the air in the silo 2 to form a negative pressure, thereby preventing the dust at the discharge port from escaping to the outside, reducing the diffusion of dust. At the same time, when the dust-laden airflow passes through the rotating blade 704, the air mixed with dust collides with the rotating blade 704 during the flow process, reducing the kinetic energy of the dust, causing it to fall into the collection box 705 under its own gravity, reducing the filter 7 02 pressure, and then after being filtered by the filter screen 702, the pure air is discharged to the outside to prevent dust from entering the air again. When the airflow passes through the rotating blade 704, it drives the rotating blade 704 to rotate, and the rotating blade 704 drives the rotating shaft 703 to rotate, and the rotating shaft 703 drives the eccentric block 16 to rotate. The rotating block intermittently pushes the slide bar 15 to move upward, and the slide bar 15 drives the installation frame 11 to move upward. With the cooperation of the spring 14, the installation frame 11 drives the filter screen 702 to vibrate up and down, further reducing the adhesion of dust and avoiding the filter screen 702 from being blocked, so that the dust prevention device of the ball mill has the effect of preventing dust from floating and ensuring the health of workers.

[0035] It should also be noted that the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, commodity or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, commodity or device. In the absence of more restrictions, the elements defined by the sentence "comprises a ..." do not exclude the existence of other identical elements in the process, method, commodity or device including the elements.

[0036] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A dust prevention device for a ball mill, comprising a bracket (1), a material bin (2) being mounted on the bracket (1), a ball mill body (3) being mounted in the inner cavity of the material bin (2), and a mill platform (4) being mounted on the top of the ball mill body (3), characterized in that: A fan (5) is fixedly connected to the upper surface of the grinding mill platform (4), an air inlet end of the fan (5) is fixedly connected to an air inlet pipe (6), and the air inlet pipe (6) is connected to the silo (2). The fan (5) creates a negative pressure inside the silo (2).

2. A dust prevention device for a ball mill according to claim 1, characterized in that: The upper surface of the grinding mill platform (4) is fixedly connected to a dust removal component (7), the air outlet end of the fan (5) is fixedly connected to an air outlet pipe (8), and the air outlet pipe (8) is in communication with the dust removal component (7).

3. A dust prevention device for a ball mill according to claim 2, characterized in that: The dust removal component (7) comprises a box body (701) fixedly connected to the upper surface of the grinding machine platform (4), and a filter screen (702) is arranged inside the box body (701).

4. A dust prevention device for a ball mill according to claim 3, characterized in that: The inner wall of the box body (701) is rotatably connected to a rotating shaft (703), the surface of the rotating shaft (703) is fixedly connected to a plurality of rotating blades (704), the air outlet end of the air outlet pipe (8) is located below the rotating blades (704), a socket is provided on the surface of the box body (701), and a collection box (705) is plugged into the inner wall of the socket.

5. The dust prevention device for a ball mill according to claim 3, characterized in that: A slide groove (9) is provided on the surface of the box body (701), a slider (10) is slidably connected to the inner wall of the slide groove (9), the opposite surfaces of the two sliders (10) are fixedly connected to a mounting frame (11), the surface of the filter screen (702) is detachably connected to the inner wall of the mounting frame (11), a box cover (12) is detachably connected to the upper surface of the box body (701), an air outlet (13) is provided on the upper surface of the box cover (12), and a spring (14) is fixedly connected to the lower surface of the box cover (12) at a position corresponding to the slider (10).

6. A dust prevention device for a ball mill according to claim 5, characterized in that: A slide rod (15) is slidably connected to one side of the box body (701), an eccentric block (16) is rotatably connected to one side of the box body (701), the eccentric block (16) is fixedly connected to the rotating shaft (703), the slider (10) extends to the outside of the box body (701), the slide rod (15) can drive the slider (10) to move upwards, and the width of the slider (10) is greater than the width of the slide groove (9).

7. The dust prevention device for a ball mill according to claim 1, characterized in that: The lower surface of the mill platform (4) is fixedly connected to a feed pipe (17) connected to the silo (2), the upper surface of the mill platform (4) is fixedly connected to a feed hopper (18) connected to the feed pipe (17), and a discharge hopper (19) is formed at the bottom of the silo (2).

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