Continuous mining machine screening device for coal mining

Abstract

The utility model discloses a continuous miner screening device for coal mining, which relates to the technical field of coal mining screening and comprises a screening mechanism, a collecting device is slidably connected to the inside of the screening mechanism, a dust suction device is fixedly connected to the left side of the screening mechanism, and the screening mechanism comprises a shell and a screening device. The screening device comprises a screening box, an electromagnetic vibrator is fixedly connected to the top of the screening box, a screening opening is formed in the surface of the screening box, and an electric telescopic rod is fixedly connected to the inner wall of the screening box. Through cooperation of the electric telescopic rod, the push plate and the bristles, the problem that the working efficiency is reduced due to the fact that the cleaning process of the screening box is complex after screening is solved, the purpose of improving the working efficiency is achieved, and through cooperation of the screening box, the shell and the box door, the problem that after screening is finished, the screening box is not damaged is solved. And therefore, the purpose of improving the convenience of the device is achieved.

Description

Technical Field

[0001] This utility model relates to the field of coal mining screening technology, specifically to a screening device for a continuous miner used in coal mining. Background Technology

[0002] Coal mines are areas where humans extract coal resources in coal-rich mining areas. Coal mines are generally divided into underground coal mines and open-pit coal mines. When the coal seam is far from the surface, it is generally chosen to excavate tunnels underground to mine the coal. This is called an underground coal mine. When the coal seam is very close to the surface, it is generally chosen to directly strip the surface soil layer to mine the coal.

[0003] Chinese Patent Application Publication No. CN213727653U discloses a coal screening device for coal mining, including a main body of the device. This coal screening device features a screening cylinder structure rotatably connected between a first connecting ring and a second connecting ring. A first gear structure is fixedly sleeved on the surface of the screening cylinder near the second connecting ring, and a second gear structure meshing with the first gear is provided at one end of the rotating shaft. By continuously rolling and screening coal blocks, coal blocks stuck in the filter holes can fall off due to their own gravity. This solves the problem that existing coal screening equipment used in coal mining often suffers from uneven coal surfaces, making it easy for coal blocks to get stuck in the filter holes. This not only reduces screening efficiency but also easily leads to coal block accumulation, causing damage to the coal screening equipment.

[0004] To address the problem of coal lumps easily getting stuck in the filter holes, the existing technology uses a first and second gear to drive the device for continuous screening. However, this still results in a complicated cleaning process for the screening box after screening, which in turn reduces work efficiency. Utility Model Content

[0005] The purpose of this utility model is to provide a screening device for continuous mining machines used in coal mining, so as to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, the technical solution adopted by this utility model is as follows:

[0007] A screening device for a continuous miner used in coal mining includes a screening mechanism, a collection device slidably connected inside the screening mechanism, and a dust collection device fixedly connected to the left side of the screening mechanism.

[0008] The screening mechanism includes a housing and a screening device. The screening device includes a screening box. An electromagnetic vibrator is fixedly connected to the top of the screening box. A screening port is opened on the surface of the screening box. An electric telescopic rod is fixedly connected to the inner wall of the screening box. A push plate is fixedly connected to the telescopic end of the electric telescopic rod. Brush bristles are fixedly connected to the bottom of the push plate.

[0009] A further improvement of this utility model is that: the screening box is fixedly connected to the inner wall of the outer shell, a support leg is fixedly connected to the bottom of the outer shell, an anti-slip pad is sleeved on the bottom of the support leg, and a sliding groove is opened inside the outer shell. Through the cooperation of the anti-slip pad and the support leg, when screening coal, the anti-slip pad can increase the friction between the support leg and the ground, thereby achieving the effect of ensuring the stability of the device.

[0010] A further improvement of this utility model is that: a box door is hinged to the back of the outer shell, and a feed inlet is fixedly connected to the top of the outer shell. Through the cooperation of the outer shell and the box door, after the coal screening is completed, the box door is opened, which facilitates the pushing out of the screened coal, thereby achieving the purpose of easy collection.

[0011] A further improvement of the present invention is that the collection device includes a collection box, a handle is fixedly connected to one side of the collection box, and the collection box is fitted inside the outer shell. Through the cooperation of the collection box and the handle, pulling the handle can drive the collection box to move, thereby achieving the purpose of improving the convenience of the device.

[0012] A further improvement of this utility model is that: connecting rods are fixedly connected to both the left and right sides of the collection box, and a pulley is sleeved on one end of the connecting rod. The pulley is slidably connected to the inside of the slide groove. Through the cooperation of the pulley, the connecting rod and the slide groove, the connecting rod fixes the pulley to both sides of the collection box, while the pulley moves in the slide groove, thereby achieving the effect of limiting the position of the collection box.

[0013] A further improvement of this utility model is that the dust collection device includes a placement plate, the right side of which is fixedly connected to the left side of the outer casing, and a dust collection pump is fixedly connected to the upper surface of the placement plate. One end of the dust collection pump is fixedly connected to a dust collection pipe. Through the cooperation of the placement plate and the dust collection pump, when screening coal, the device vibrates, and the placement plate fixes the dust collection pump, thereby achieving the purpose of ensuring stable operation of the device.

[0014] A further improvement of this utility model is that: a filter screen is fixedly connected inside the dust suction pipe, a transmission pipe is fixedly connected to the output end of the dust suction pump, and a storage box is fixedly connected to one end of the transmission pipe. Through the cooperation of the dust suction pipe and the filter screen, a large amount of dust is generated during coal screening. When the dust is sucked up, the filter screen can prevent the dust suction pipe from sucking in large coal lumps, thereby achieving the effect of protecting the equipment.

[0015] Due to the adoption of the above technical solution, the technological progress achieved by this utility model compared to the prior art is as follows:

[0016] This utility model provides a screening device for a continuous miner used in coal mining. By combining an electric telescopic rod, a push plate, and brush bristles, it solves the problem of complicated cleaning of the screening box after screening, which leads to reduced work efficiency, thereby improving work efficiency. By combining the screening box, the outer shell, and the box door, it solves the problem of difficult collection of coal blocks in the screening box after screening, thereby improving the convenience of the device.

[0017] This utility model provides a screening device for a continuous miner used in coal mining. By combining an electromagnetic vibrator, a screening box, and a screening inlet, it solves the problem of smaller coal pieces that cannot be screened out in the screening box, thereby improving the practicality of the device.

[0018] This utility model provides a screening device for a continuous miner used in coal mining. By combining a dust suction pipe, a dust suction pump, and a filter screen, it solves the problem that coal chunks easily enter the dust suction pipe during dust extraction, which can lead to equipment damage. This improves the protection of the equipment. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of this utility model;

[0020] Figure 2 This is a cross-sectional structural diagram of the screening mechanism of this utility model;

[0021] Figure 3 This is a schematic diagram of the screening device of this utility model;

[0022] Figure 4 This is a schematic diagram of the collection device structure of this utility model;

[0023] Figure 5 This is a schematic diagram of the dust collection device of this utility model.

[0024] In the diagram: 1. Screening mechanism; 11. Outer shell; 12. Support leg; 13. Anti-slip mat; 14. Slide chute; 15. Box door; 16. Feed inlet; 17. Screening device; 171. Screening box; 172. Electromagnetic vibrator; 173. Screening port; 174. Electric telescopic rod; 175. Push plate; 176. Brush; 2. Collection device; 21. Collection box; 22. Handle; 23. Connecting rod; 24. Pulley; 3. Dust collection device; 31. Placement plate; 32. Dust pump; 33. Dust collection pipe; 34. Filter screen; 35. Transmission pipe; 36. Storage box. Detailed Implementation

[0025] The present invention will be further described in detail below with reference to embodiments: Example 1

[0026] like Figure 1-5 As shown, this utility model provides a screening device for a continuous miner used in coal mining, including a screening mechanism 1, a collection device 2 slidably connected inside the screening mechanism 1, and a dust collection device 3 fixedly connected to the left side of the screening mechanism 1.

[0027] The screening mechanism 1 includes a housing 11 and a screening device 17. The screening device 17 includes a screening box 171. An electromagnetic vibrator 172 is fixedly connected to the top of the screening box 171. A screening port 173 is opened on the surface of the screening box 171. An electric telescopic rod 174 is fixedly connected to the inner wall of the screening box 171. A push plate 175 is fixedly connected to the telescopic end of the electric telescopic rod 174. A brush 176 is fixedly connected to the bottom of the push plate 175. After the coal blocks enter the screening box 171, the electromagnetic vibrator 172 is turned on, which drives the screening box 171 to vibrate. The coal blocks in the box vibrate synchronously. Smaller coal blocks fall into the collection box 21 through the screening port 173. The coal dust generated during vibration is sucked into the storage box 36 by the dust pump 32. After screening, the box door 15 is opened, and then the electric telescopic rod 174 is opened, which drives the push plate 175 and the brush 176 to move, thereby pushing out the coal blocks for easy collection. Example 2

[0028] like Figure 1-5As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the screening box 171 is fixedly connected to the inner wall of the outer shell 11, a support leg 12 is fixedly connected to the bottom of the outer shell 11, an anti-slip pad 13 is sleeved on the bottom of the support leg 12, a sliding groove 14 is opened inside the outer shell 11, a box door 15 is hinged to the back of the outer shell 11, and a feed inlet 16 is fixedly connected to the top of the outer shell 11. The coal blocks mined by the continuous mining machine enter the screening box 171 through the feed inlet 16. When screening the coal blocks, the device vibrates. The anti-slip pad 13 can increase the friction, thereby reducing the vibration and ensuring the stability of the device. The sliding groove 14 provides space for the pulleys 24 to slide against each other, and at the same time can plan the movement route of the collection box 21, thereby avoiding the collection box 21 moving in a way that avoids the collection box 21 moving in a way that avoids the collection box 21 moving in a way that avoids the collection box 21 moving in a way that avoids the collection box 24 ... When the collection box 21 falls, a baffle is provided on the outside of the chute 14 to prevent the pulley 24 from falling out of the chute 14. The collection device 2 includes a collection box 21, with a handle 22 fixedly connected to one side. The collection box 21 is fitted inside the outer shell 11. Connecting rods 23 are fixedly connected to both the left and right sides of the collection box 21. A pulley 24 is fitted to one end of the connecting rod 23. The pulley 24 is slidably connected to the inside of the chute 14. Coal pieces that fall from the screen opening 173 due to vibration fall into the collection box 21. The collection opening of the collection box 21 is wider than that of the screening box 171, so that coal pieces that fall from both sides of the screening box 171 can also be collected by the collection box 21. After screening, the handle can be manually pulled to bring out the collection box 21, thereby collecting smaller coal pieces. Example 3

[0029] like Figure 1-5 As shown, based on Embodiment 1, this utility model provides a technical solution: Preferably, the dust collection device 3 includes a placement plate 31, the right side of which is fixedly connected to the left side of the outer casing 11. A dust collection pump 32 is fixedly connected to the upper surface of the placement plate 31. A dust collection pipe 33 is fixedly connected to one end of the dust collection pump 32. A filter screen 34 is fixedly connected inside the dust collection pipe 33. A transmission pipe 35 is fixedly connected to the output end of the dust collection pump 32. A storage box 36 is fixedly connected to one end of the transmission pipe 35. While screening the coal blocks, the generated... The dust will diffuse, thus turning on the dust pump 32. The dust is then sucked into the transmission pipe 35 through the dust suction pipe 33 and falls into the storage bin 36. The top of the storage bin 36 has ventilation holes with filters inside. This ensures air circulation inside the storage bin 36 while preventing dust from escaping. The filter 34 prevents smaller coal pieces from being sucked into the dust suction pipe 33 due to their lower weight. After screening, the dust pump 32 is turned off, and the dust in the storage bin 36 can then be cleaned.

[0030] The working principle of the screening device of the continuous miner used in this coal mine will be explained in detail below.

[0031] like Figure 1-5As shown, after the coal blocks enter the screening box 171, the dust pump 32 is turned on, followed by the electromagnetic vibrator 172, which causes the screening box 171 to vibrate. Smaller coal blocks fall into the collection box 21 through the screening port 173. The dust generated during the screening process is sucked into the storage box 36 through the dust suction pipe 33, thus preventing the dust from spreading. After screening, the electromagnetic vibrator 172 is turned off. The smaller coal blocks are in the collection box 21, the dust is in the storage box 36, and the larger coal blocks are in the screening box 171. Then, the handle is pulled to bring out the collection box 21, thereby collecting the smaller coal blocks. The electric telescopic rod 174 is opened, which drives the push plate 175 and the brush 176 to move, thereby pushing the coal blocks out for easy collection.

[0032] The present invention has been described in detail above. However, modifications or improvements can be made to it, which will be obvious to those skilled in the art. Therefore, any modifications or improvements that do not depart from the spirit of the present invention are within the protection scope of the present invention.

Claims

1. A screening device for a continuous miner used in coal mining, comprising a screening mechanism (1), characterized in that: The screening mechanism (1) is internally slidably connected to a collection device (2), and a dust collection device (3) is fixedly connected to the left side of the screening mechanism (1). The screening mechanism (1) includes a housing (11) and a screening device (17). The screening device (17) includes a screening box (171). An electromagnetic vibrator (172) is fixedly connected to the top of the screening box (171). A screening port (173) is opened on the surface of the screening box (171). An electric telescopic rod (174) is fixedly connected to the inner wall of the screening box (171). A push plate (175) is fixedly connected to the telescopic end of the electric telescopic rod (174). A brush (176) is fixedly connected to the bottom of the push plate (175).

2. The screening device for a continuous miner used in coal mining according to claim 1, characterized in that: The screening box (171) is fixedly connected to the inner wall of the outer shell (11), and a support leg (12) is fixedly connected to the bottom of the outer shell (11). An anti-slip pad (13) is sleeved on the bottom of the support leg (12), and a sliding groove (14) is opened inside the outer shell (11).

3. The screening device for a continuous miner used in coal mining according to claim 1, characterized in that: The back of the outer shell (11) is hinged with a door (15), and the top of the outer shell (11) is fixedly connected with a feed inlet (16).

4. A screening device for a continuous miner used in coal mining according to claim 1, characterized in that: The collection device (2) includes a collection box (21), a handle (22) is fixedly connected to one side of the collection box (21), and the collection box (21) is fitted inside the outer shell (11).

5. A screening device for a continuous miner used in coal mining according to claim 4, characterized in that: The collection box (21) is fixedly connected to the left and right sides with connecting rods (23), and a pulley (24) is sleeved on one end of the connecting rod (23). The pulley (24) is slidably connected to the inside of the slide groove (14).

6. A screening device for a continuous miner used in coal mining according to claim 1, characterized in that: The vacuuming device (3) includes a placement plate (31), the right side of which is fixedly connected to the left side of the outer shell (11), and a vacuum pump (32) is fixedly connected to the upper surface of the placement plate (31), and a vacuum pipe (33) is fixedly connected to one end of the vacuum pump (32).

7. A screening device for a continuous miner used in coal mining according to claim 6, characterized in that: A filter screen (34) is fixedly connected inside the suction pipe (33), and a transmission pipe (35) is fixedly connected to the output end of the suction pump (32). A storage box (36) is fixedly connected to one end of the transmission pipe (35).

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