Coal dust collecting device for coal mine

Abstract

The utility model relates to the field of coal mine coal dust trapping, and discloses a coal mine coal dust trapping device which comprises a main body, a spraying and dust falling mechanism is arranged at the top of the main body and comprises a dust filtering cavity, the dust filtering cavity is formed in the main body, and a dust filtering mesh cover is fixedly connected to the top of the inner wall of the dust filtering cavity. The top of the body is fixedly connected with a first water tank and a second water tank, the bottom of the first water tank is fixedly connected with a connecting pipe, the bottom end of the connecting pipe is fixedly connected with the top of the second water tank, the inner wall of the second water tank is slidably connected with a sealing ball plate, and the outer wall of the sealing ball plate is fixedly connected with a sealing connecting rod. According to the utility model, water can be atomized and sprayed out through the atomizing nozzle by arranging the spray dust-settling mechanism, and water mist is in full contact with coal dust in air, so that the coal dust is moistened and condensed, the particle size and weight of the coal dust are increased, the coal dust settling is promoted, and the content of the coal dust in the air is further reduced.

Description

Technical Field

[0001] This utility model relates to the field of coal dust collection in coal mines, and more particularly to a coal dust collection device for coal mines. Background Technology

[0002] The mining, transportation, and processing of coal generate large amounts of coal dust. This coal dust not only severely pollutes the working environment and threatens the health of coal miners, causing occupational diseases such as pneumoconiosis, but also poses an explosion hazard when the coal dust concentration reaches a certain level, seriously affecting the safe production of coal mines.

[0003] Currently, existing coal dust collection devices in coal mines mainly employ single filtration or spraying methods for dust treatment. Some devices rely on filters to intercept and filter coal dust, allowing dust-laden air to pass through the filter, causing the coal dust to adhere to the filter and thus purifying the air. Other devices utilize spray systems to atomize water and spray it into the dust-laden air, causing the coal dust to combine with the water mist and settle. In practical applications, these devices typically operate independently and are deployed in different working areas of the coal mine as needed to reduce the concentration of coal dust in local environments.

[0004] While a single filtration method can intercept larger coal dust particles, it is not effective at capturing fine coal dust particles. On the other hand, a simple spraying method has limited contact area and contact time between water mist and coal dust, and cannot achieve efficient settling for some highly dispersed coal dust. Therefore, a coal mine dust collection device is proposed to solve the above problems. Utility Model Content

[0005] To overcome the above shortcomings, this utility model provides a coal mine dust collection device, which aims to solve the problems of poor collection effect of single filtration method on fine particulate coal dust and low settling efficiency of simple spray method on dispersed coal dust, making it difficult to achieve efficient settling.

[0006] To achieve the above objectives, this utility model adopts the following technical solution: a coal mine dust collection device, comprising a main body, a spray dust suppression mechanism on the top of the main body, the spray dust suppression mechanism including a dust filter chamber, the dust filter chamber being opened inside the main body, a dust filter screen fixedly connected to the top of the inner wall of the dust filter chamber, a water tank one fixedly connected to the top of the main body, a water tank two fixedly connected to the top of the main body, a connecting pipe fixedly connected to the bottom of the water tank one, the bottom end of the connecting pipe being fixedly connected to the top of the water tank two, a sealing ball plate slidably connected to the inner wall of the water tank two, a sealing connecting rod fixedly connected to the outer wall of the sealing ball plate, a pressure plate fixedly connected to the end of the sealing connecting rod away from the sealing ball plate, a return spring fixedly connected to the side of the pressure plate near the water tank two, the end of the return spring away from the pressure plate being fixedly connected to the outer wall of the water tank two, a water outlet pipe fixedly connected to the inner wall of the water tank two, and an atomizing nozzle fixedly connected to the bottom end of the water outlet pipe.

[0007] As a further description of the above technical solution:

[0008] The main body is also equipped with a cleaning mechanism, which includes a motor, the top of which is fixedly connected to the bottom of the water tank.

[0009] As a further description of the above technical solution:

[0010] The cleaning mechanism also includes a rotating rod, the top of which is fixedly connected to the motor output.

[0011] As a further description of the above technical solution:

[0012] The cleaning mechanism also includes a cam, the inner wall of which is fixedly connected to the outer wall of the rotating rod.

[0013] As a further description of the above technical solution:

[0014] The cleaning mechanism also includes a cleaning brush plate, the outer wall of which is fixedly connected to the bottom end of the rotating rod, and the outer wall of which is attached to the outer wall of the dust filter screen.

[0015] As a further description of the above technical solution:

[0016] The cleaning mechanism also includes a dust collection port, which is located on the right side of the main body.

[0017] As a further description of the above technical solution:

[0018] The cleaning mechanism also includes a vacuum cleaner fan, which is fixedly connected to the left side of the main body.

[0019] As a further description of the above technical solution:

[0020] The cleaning mechanism also includes a dust outlet, which is located at the bottom of the main body.

[0021] This utility model has the following beneficial effects:

[0022] 1. In this utility model, by setting up a spray dust suppression mechanism, water can be atomized and sprayed out through atomizing nozzles. These water mists come into full contact with the coal dust in the air, making the coal dust wet and condense, increasing the particle size and weight of the coal dust, promoting the settling of coal dust, and further reducing the coal dust content in the air.

[0023] 2. In this utility model, by setting up a cleaning mechanism, the dust filter screen can be prevented from becoming clogged, thus extending the service life of the dust filter screen, reducing the frequency and cost of replacing the dust filter screen, and reducing equipment failures caused by filter screen clogging. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the main structure of the coal dust collection device for coal mines proposed in this utility model;

[0025] Figure 2 This is a partial structural schematic diagram of a top cross-section of the coal dust collection device proposed in this utility model;

[0026] Figure 3 This is a partial cross-sectional view of the main body of the coal dust collection device proposed in this utility model.

[0027] Figure 4 This is a top view cross-sectional structural diagram of the water tank of the coal dust collection device proposed in this utility model.

[0028] Figure 5 This is a bottom view cross-sectional structural diagram of the coal dust collection device proposed in this utility model.

[0029] Legend:

[0030] 1. Main body; 2. Spray dust suppression mechanism; 211. Dust filter chamber; 212. Dust filter screen; 213. Water tank one; 214. Water tank two; 215. Connecting pipe; 216. Sealing ball plate; 217. Sealing connecting rod; 218. Pressure plate; 219. Return spring; 220. Water outlet pipe; 221. Atomizing nozzle; 3. Cleaning mechanism; 311. Motor; 312. Rotating rod; 313. Cam; 314. Cleaning brush; 315. Dust collection port; 316. Dust suction fan; 317. Dust discharge port. Detailed Implementation

[0031] 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.

[0032] Reference Figure 1 , Figure 4 , Figure 5 This utility model provides an embodiment of a coal mine dust collection device, comprising a main body 1, a spray dust suppression mechanism 2 on the top of the main body 1, and a dust filtration chamber 211 inside the main body 1, which is a space for preliminary treatment of coal dust. A dust filter screen 212 is fixedly connected to the top of the inner wall of the dust filtration chamber 211, which can effectively intercept larger coal dust particles and perform preliminary filtration of the air. A water tank 1 213 is fixedly connected to the top of the main body 1 to provide water for the spray. A water tank 214 is also fixedly connected to the top of the main body 1 to cooperate with the water tank 1 213 to achieve a stable water supply. A connecting pipe 215 is fixedly connected to the bottom of the water tank 1 213, and the bottom end of the connecting pipe 215 is fixedly connected to the top of the water tank 214 to replenish the water in the water tank 214. A sealing device is slidably connected to the inner wall of the water tank 214. The ball plate 216 controls the opening and closing of the water outlet pipe 220, determining whether spraying occurs. A sealing connecting rod 217 is fixedly connected to the outer wall of the sealing ball plate 216 to transmit the power of the pressure plate 218, causing the sealing ball plate 216 to move. A pressure plate 218 is fixedly connected to the end of the sealing connecting rod 217 away from the sealing ball plate 216. A return spring 219 is fixedly connected to the side of the pressure plate 218 near the second water tank 214. The end of the return spring 219 away from the pressure plate 218 is fixedly connected to the outer wall of the second water tank 214. When the cam 313 stops pressing the pressure plate 218, the pressure plate 218 is reset, thereby stopping the spraying. A water outlet pipe 220 is fixedly connected to the inner wall of the second water tank 214, which is the channel for water to flow out of the second water tank 214. An atomizing nozzle 221 is fixedly connected to the bottom end of the water outlet pipe 220, which can atomize water and spray it out to fully contact the coal dust for dust suppression.

[0033] Reference Figure 1 - Figure 3The inner wall of the main body 1 is also provided with a cleaning mechanism 3. The cleaning mechanism 3 includes a motor 311. The top of the motor 311 is fixedly connected to the bottom of the water tank 213 to provide power for the entire cleaning and spray triggering process. The cleaning mechanism 3 also includes a rotating rod 312. The top of the rotating rod 312 is fixedly connected to the output end of the motor 311 to transmit the power of the motor 311 and drive the cam 313 and the cleaning brush 314 to rotate. The cleaning mechanism 3 also includes a cam 313. The inner wall of the cam 313 is fixedly connected to the outer wall of the rotating rod 312. By rotating, it indirectly squeezes the pressure plate 218 to trigger the spray.

[0034] Reference Figure 1 - Figure 3 The cleaning mechanism 3 also includes a cleaning brush 314, the outer wall of which is fixedly connected to the bottom end of the rotating rod 312. The outer wall of the cleaning brush 314 is in contact with the outer wall of the dust filter cover 212, which can clean the coal dust attached to the outer wall of the dust filter cover 212 and prevent the filter from clogging. The cleaning mechanism 3 also includes a dust collection port 315, which is opened on the right side of the main body 1 and is the entrance for coal dust to enter the interior of the main body 1. The cleaning mechanism 3 also includes a dust suction fan 316, the outer wall of which is fixedly connected to the left side of the main body 1, which generates suction to draw coal dust into the main body 1. The cleaning mechanism 3 also includes a dust discharge port 317, which is opened at the bottom of the main body 1 and is used to discharge settled coal dust.

[0035] Working principle: When coal dust collection is required, the dust extraction fan 316 is started, and the coal dust enters the dust filter chamber 211 through the dust collection port 315. The dust filter screen 212 can intercept and filter the coal dust in the air. When the dust content inside the dust filter chamber 211 is large, the motor 311 is started, causing the output end of the motor 311 to drive the fixedly connected rotating rod 312 to rotate, thereby driving the cam 313 fixedly connected to the outer wall of the rotating rod 312 to rotate. When rotating, the cam 313 can indirectly squeeze the pressure plate 218. When squeezed, the pressure plate 218 pushes the sealing ball plate 216 to move through the sealing connecting rod 217. The sealing ball plate 216 no longer exerts pressure on the pressure plate. The top of the water outlet pipe 220 is sealed, allowing water from inside water tank 214 to enter the water outlet pipe 220. Water from water tank 1 213 can be supplied to water tank 214 via connecting pipe 215. The water entering the water outlet pipe 220 can be atomized and sprayed out through atomizing nozzle 221. Under the restoring force of the return spring 219, the pressure plate 218 can be reset, and the sealing ball plate 216 can reseal the water outlet pipe 220, thus enabling indirect spray dust suppression. This water mist comes into full contact with the coal dust in the air, wetting and agglomerating the coal dust, increasing the particle size and weight of the coal dust, promoting coal dust settling, and further reducing the coal dust content in the air.

[0036] As the rotating rod 312 rotates, it causes the cleaning brush plate 314, which is fixedly connected to the bottom end of the rotating rod 312, to rotate as well. The cleaning brush plate 314 can clean the coal dust adhering to the outer wall of the dust filter screen 212, thereby preventing the dust filter screen 212 from becoming clogged, extending the service life of the dust filter screen 212, reducing the frequency and cost of replacing the dust filter screen 212, and reducing equipment failures caused by filter screen clogging.

[0037] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A coal dust capturing device for coal mines, comprising a main body (1), characterized in that: The top of the main body (1) is provided with a spray dust falling mechanism (2), the spray dust falling mechanism (2) includes a dust filtering cavity (211), the dust filtering cavity (211) is opened in the main body (1), the inner wall of the dust filtering cavity (211) is fixedly connected with a dust filtering mesh cover (212), the top of the main body (1) is fixedly connected with a water tank one (213), the top of the main body (1) is also fixedly connected with a water tank two (214), the bottom of the water tank one (213) is fixedly connected with a connecting pipe (215), the bottom end of the connecting pipe (215) is fixedly connected with the top of the water tank two (214), the inner wall of the water tank two (214) is slidably connected with a sealing ball plate (216), the outer wall of the sealing ball plate (216) is fixedly connected with a sealing connecting rod (217), one end of the sealing connecting rod (217) away from the sealing ball plate (216) is fixedly connected with a pressure receiving plate (218), the side of the pressure receiving plate (218) close to the water tank two (214) is fixedly connected with a return spring (219), one end of the return spring (219) away from the pressure receiving plate (218) is fixedly connected with the outer wall of the water tank two (214), the inner wall of the water tank two (214) is fixedly connected with a water outlet pipe (220), the bottom end of the water outlet pipe (220) is fixedly connected with an atomizing nozzle (221).

2. The coal mine coal dust capturing device according to claim 1, characterized in that: The inner wall of the main body (1) is also provided with a cleaning mechanism (3), the cleaning mechanism (3) includes a motor (311), and the top of the motor (311) is fixedly connected to the bottom of the water tank one (213).

3. The coal mine coal dust capturing device of claim 2, wherein: The cleaning mechanism (3) further includes a rotating rod (312), and the top end of the rotating rod (312) is fixedly connected with the output end of the motor (311).

4. The coal mine coal dust capturing device of claim 2, wherein: The cleaning mechanism (3) further includes a cam (313), and the inner wall of the cam (313) is fixedly connected to the outer wall of the rotating rod (312).

5. The coal mine coal dust capturing device of claim 2, wherein: The cleaning mechanism (3) further includes a cleaning brush plate (314), and the outer wall of the cleaning brush plate (314) is fixedly connected with the bottom end of the rotating rod (312), and the outer wall of the cleaning brush plate (314) is attached to the outer wall of the dust filtering mesh cover (212).

6. The coal mine coal dust capturing device of claim 2, wherein: The cleaning mechanism (3) further includes a dust collecting port (315), and the dust collecting port (315) is opened in the right side of the main body (1).

7. The coal mine coal dust capturing device of claim 2, wherein: The cleaning mechanism (3) further includes a dust collecting fan (316), and the outer wall of the dust collecting fan (316) is fixedly connected to the left side of the main body (1).

8. The coal mine coal dust capturing device of claim 2, wherein: The cleaning mechanism (3) further includes a dust discharging port (317), and the dust discharging port (317) is opened in the bottom of the main body (1).

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