Movable full-section dust catching device for underground coal mine roadway

Abstract

The utility model discloses a coal mine underground roadway movable type full-section dust catching device which comprises a movable frame arranged on the section of a roadway, the movable frame is arranged by avoiding a belt conveying line and a ventilation pipeline on one side of the roadway, and the movable frame comprises two stand columns arranged in a spaced mode. The stand column on the other side of the roadway is arranged at a certain distance away from the other side of the roadway, telescopic rods are arranged on the stand column on the other side of the roadway at the upper portion and the lower portion which are oppositely arranged at a certain distance respectively, the two stand columns are supported on two sets of walking wheels respectively, and double-opening centering door leaves are arranged in the middles of the two stand columns respectively. The centering door leaves are clamped on the stand columns on the two sides through shaft sleeve clamping sleeves and can be adjusted and moved up and down so as to avoid ground obstacles and anchor rods at the top end of the roadway, the single-opening door leaf is arranged on the stand column on one side of the roadway above the belt conveying line and opposite to the ventilation pipeline, and dust catching nets are laid among the single-opening door leaf, the two centering door leaves and the two telescopic rods in a covering mode.

Description

Technical Field

[0001] The utility model relates to a mobile full-section dust collecting device for underground coal mine tunnels. Background Art

[0002] With the development of science and technology, the mechanization degree of coal mines has been continuously improved, and the mining intensity has been increasing. Therefore, more and more dust is generated in the coal mining working face, resulting in a continuous increase in dust concentration in the working area.

[0003] Coal mine dust affects mine safety production and threatens the health of workers. It is one of the main disasters in coal mines. The harmfulness of coal mine dust is mainly manifested in two aspects: dust occupational hazards and coal dust explosions. Effectively controlling dust, reducing dust concentration, improving the working environment, and eliminating coal dust accidents are an important part of coal mine safety production.

[0004] In recent years, coal mines have continuously tried to take various dust prevention measures to suppress and reduce dust during the production process, such as wind purification spray, full-section dust collection device, etc., in order to reduce the dust concentration in underground workplaces, prevent coal dust explosion accidents, create a clean environment for underground workplaces, and reduce the harm of dust to the health of underground workers; however, the full-section dust collection device needs to be moved with the progress of mining. Frequent movement not only increases the workload of mining unit employees, but also brings safety hazards during high-altitude operations. Therefore, a full-section dust collection device with flexible control is needed. Summary of the invention

[0005] The utility model aims to provide a mobile full-section dust collecting device for underground coal mine tunnels. In addition to leaving holes for ventilation pipes in the tunnels in the cross section, a switch door leaf is also provided in the cross section, so that the full-section dust collecting net device is more flexible in movement.

[0006] In order to achieve the above purpose, the solution of the utility model is:

[0007] A mobile full-section dust collection device for underground coal mine tunnels, comprising a mobile frame arranged in the tunnel section, the mobile frame being arranged to avoid a belt transmission line and a ventilation duct on one side of the tunnel, the mobile frame comprising two columns arranged at intervals, the column on the other side of the tunnel being arranged to be spaced apart from the other side of the tunnel, telescopic rods being respectively arranged above and below the column on the other side of the tunnel for being spaced apart, the two columns being respectively supported on two sets of walking wheels, double-opening centering door leaves being respectively arranged in the middle of the two columns, the centering door leaves being clamped on the columns on both sides by shaft sleeve clamps and being adjustable and movable up and down to avoid ground obstacles and anchor rods at the top of the tunnel, a single-opening door leaf being arranged on the column on one side of the tunnel above the belt transmission line relative to the ventilation duct, and dust collection nets being respectively laid and covered between the single-opening door leaf, the two centering door leaves and the two telescopic rods.

[0008] A further solution is that the mobile frame moves forward with the mining working face, and the distance between the mobile frame and the mining working face is no more than 100m.

[0009] A further solution is: water pipes are respectively arranged at the upper ends of the two centering door leaves, and the water pipes are connected to water mist nozzles.

[0010] A further solution is: the dust catching net is a steel wire mesh with a density of not less than 400 meshes.

[0011] A further solution is that the running wheel is controlled to rotate by a motor.

[0012] The beneficial effects of the utility model are:

[0013] (1) The mobile full-section dust collection device covers the entire section and can ensure a better dust collection effect.

[0014] (2) The mobile full-section dust collection device can be moved as a whole, which greatly reduces the workload during the frequent relocation of the dust collection device and avoids the safety hazards caused by the high-altitude operation during the relocation of the dust collection device.

[0015] (3) The manufacture of mobile full-section dust collection devices is relatively simple, with low material and processing costs. At the same time, it can also save a lot of dust collection device wear and maintenance costs caused by frequent relocation.

[0016] The utility model is described in detail below in conjunction with the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a schematic diagram of the structure of the utility model;

[0018] Figure 2 It is a schematic diagram of the walking wheel structure. DETAILED DESCRIPTION

[0019] A mobile full-section dust collecting device for underground coal mine tunnels, such as Figure 1 and Figure 2 As shown, it includes a mobile frame 2 set on the tunnel section 1, and the mobile frame 2 is set to avoid the belt transmission line 3 and the ventilation duct 4 on one side of the tunnel. The mobile frame includes two columns 201 set at intervals. The column 201-1 on the other side of the tunnel is set at a distance from the other side of the tunnel. Usually, the tunnel width is 5.5m, and the distance is 0.4m. Telescopic rods 5 are respectively set above and below the column 201-1 on the other side of the tunnel for the distance. The two columns 201 are respectively supported on two sets of walking wheels 6. The structure of the walking wheels 6 seen from the side is as follows Figure 2As shown, each set of walking wheels 6 has two rollers 601 in front and behind, a column sleeve 602 is arranged between the two rollers 601, the column 201 is inserted in the column sleeve 602 and fixed, and the two columns 201 are respectively provided with double-opening centering door leaves 7 in the middle, and the centering door leaves 7 are clamped on the columns 201 on both sides by shaft sleeve clamps 8 and can be adjusted up and down to avoid ground obstacles and anchor rods at the top of the tunnel, and the shaft sleeve clamp 8 is a shaft sleeve with an elastic expansion plug arranged in the sleeve, and a single-opening door leaf 9 is arranged on the column 201-2 on one side of the tunnel above the belt transmission line relative to the ventilation duct, and the single-opening door leaf 9 is also clamped on the side column 201-2 using the shaft sleeve clamp, and dust-catching nets are laid and covered between the single-opening door leaf 9, the two centering door leaves 7 and the two telescopic rods 5; the dust-catching net is a steel wire mesh with a density of not less than 400 meshes. In addition, water pipes 10 are respectively arranged at the upper ends of the two centering door leaves 7, and water mist nozzles 11 are connected to the water pipes. The water pipes 10 are fixedly laid along the door frame and connected to the water inlet pipe.

[0020] In the embodiment, the mobile frame moves forward with the mining face, and usually, the distance between the mobile frame and the mining face is not more than 100m. In addition, the mobile frame 2 can be pushed manually or driven by a motor to drive the running wheels to rotate, that is, the running wheels are driven by a motor to rotate the running wheels. By electrically controlling the overall forward movement, it will be more convenient, faster and safer.

[0021] The above-mentioned mobile full-section dust collecting device has full-section coverage, which can ensure a better dust collecting effect; the mobile full-section dust collecting device can be moved as a whole, which greatly reduces the workload during the frequent movement of the dust collecting device, and the movable door leaf also avoids the safety hazards caused by the high-altitude operation during the movement of the dust collecting device.

Claims

1. A mobile full-section dust collecting device for underground coal mine tunnels, comprising a mobile frame arranged in the tunnel section, the mobile frame being arranged away from a belt transmission line and a ventilation duct on one side of the tunnel, characterized in that: The movable frame includes two columns arranged at intervals, the column on the other side of the alley is arranged at a distance from the other side of the alley, telescopic rods are respectively arranged above and below the column on the other side of the alley for the distance apart, the two columns are respectively supported on two sets of walking wheels, and double-opening centering door leaves are respectively arranged in the middle of the two columns, and the centering door leaves are clamped on the columns on both sides by shaft sleeves and can be adjusted up and down to avoid ground obstacles and anchor rods at the top of the alley, and a single-opening door leaf is arranged on the column on one side of the alley above the belt transmission line relative to the ventilation duct, and dust collecting nets are respectively laid and covered between the single-opening door leaf, the two centering door leaves and the two telescopic rods.

2. The mobile full-section dust collecting device according to claim 1, characterized in that: The mobile frame moves forward along with the mining working face, and the distance between the mobile frame and the mining working face is not more than 100m.

3. The mobile full-section dust collecting device according to claim 1, characterized in that: Water pipes are respectively arranged at the upper ends of the two centering door leaves, and the water pipes are connected to water mist nozzles.

4. The mobile full-section dust collecting device according to claim 1, characterized in that: The dust catching net is a steel wire net with a density of not less than 400 meshes.

5. The mobile full-section dust collecting device according to claim 1, characterized in that: The running wheel is controlled to rotate by a motor.

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