Dust removal device for underground coal mine

Abstract

The utility model discloses a dust removal device for an underground coal mine. The dust removal device comprises a base, the wet dust collector is arranged on the base and is used for sucking and atomizing dust; the dust collection cover is connected with the wet dust collector through a dust collection pipeline and conveys dust to the wet dust collector through the dust collection pipeline; and the negative pressure generator is mounted on the dust collection pipeline. The negative pressure generator is additionally arranged on the dust collection pipeline connecting the wet dust collector and the dust collection cover, the air suction amount of the wet dust collector is increased through the negative pressure generator, the air suction amount is not smaller than the reverse air amount in the drilling construction process, the situation that dust overflows in the dust collection process is avoided, and therefore roadway pollution caused by dust overflows is avoided; in order to solve the problem that in the prior art, when drilling is carried out, the body health and the operation safety of constructors are affected due to the fact that the dust generated in the drilling process is atomized into dust sewage through a wet dust collector, and dust falling treatment on the dust generated in the drilling process is completed.

Description

Technical Field

[0001] The utility model relates to the technical field of dust removal devices, in particular to a dust removal device used in coal mines. Background Art

[0002] Dust pollution is a long-standing problem during underground drilling operations in coal mines. It not only poses a serious threat to the health of miners but also affects mine production safety and the service life of equipment. Therefore, dust removal plays a vital role in coal mine safety. Currently, the air-water flow dust collectors used for underground drilling operations in coal mines discharge dust water, formed by the combination of water mist and dust, directly onto the ground, resulting in a flood of sewage and muddy conditions.

[0003] In response to the above problems, the existing patent document with authorization announcement number CN216320841U discloses a box-type air-water flow dust collector for underground coal mines. The dust collector is provided with a dust and sewage collection hood with an opening at the bottom on the box cover, and a dust collection pipe is provided on the side of the dust and sewage collection hood. The end of the dust collection pipe away from the dust and sewage collection hood is provided with an air inlet end and an air-water collision chamber, the air inlet end is connected to the dust collection pipe underground in the coal mine, and the outer end of the air-water collision chamber is provided with a water jet; the inner cavity of the box body is divided into a collection chamber and a sewage filter chamber, the collection chamber is located directly below the dust and sewage collection hood, and a drain outlet is provided on the side wall of the sewage filter chamber, and the drain outlet is connected to a drainage pump. When in use, the dust and pressurized water are initially merged in the dust removal pipe and then enter the dust and sewage collection hood, and then are discharged to a designated location through the collection chamber, the sewage filter chamber and the drainage pump in sequence to reduce pollution to the on-site environment.

[0004] It can be seen that when the above-mentioned dust collector is in use, it uses the wind and water jet principle formed in the dust collector structure to form a negative pressure at the dust suction port to absorb dust, and then discharges the dust and sewage into the dust and sewage collection hood through the dust removal pipe. However, when the drilling construction conditions are relatively complex or the ventilation conditions of the mine are poor, the backwind volume will be large, even greater than the negative pressure suction volume generated by the dust collector, thereby causing dust overflow and causing the tunnel to be polluted by dust, affecting the health and work safety of construction workers. Utility Model Content

[0005] The technical problem to be solved by the utility model is: how to solve the technical problem that the negative pressure suction volume of the dust collector is less than the reverse air volume during drilling construction, resulting in dust overflow and pollution of the tunnel, thereby affecting the health and work safety of construction workers.

[0006] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0007] A dust removal device for underground coal mines, comprising:

[0008] Base;

[0009] Wet dust collector, which is installed on the base and sucks and atomizes dust;

[0010] Dust collection hood, which is connected to the wet dust collector through a dust suction pipe and conveys dust to the wet dust collector through the dust suction pipe;

[0011] Negative pressure generator, which is installed on the dust suction pipe.

[0012] In this application, a negative pressure generator is added to the dust suction pipe connecting the wet dust collector and the dust collection hood. The negative pressure generator is used to increase the air suction volume of the wet dust collector so that it is not less than the reverse air volume during the drilling construction process, to avoid the situation of dust overflow during the dust removal process, thereby avoiding the pollution of the roadway caused by dust overflow, and further preventing the situation that affects the physical health and operation safety of construction workers. The wet dust collector atomizes the sucked dust into dust sewage to complete the dust suppression treatment of the dust generated during the drilling process; In summary, this application effectively solves the technical problem in the prior art that the negative pressure air suction volume of the dust collector is less than the reverse air volume during the drilling construction, resulting in dust overflow and pollution of the roadway, thus affecting the physical health and operation safety of construction workers.

[0013] As a further solution of the present utility model: It further includes a sewage tank, which is installed on the base and connected to the wet dust collector to collect and store the dust sewage from the wet dust collector.

[0014] As a further solution of the present utility model: A drainage pump is also installed on the base, and the drainage pump is connected to the sewage tank.

[0015] As a further solution of the present utility model: The drainage pump is a diaphragm pump.

[0016] As a further solution of the present utility model: The dust suction pipe is a multi-section dust suction pipe, which is composed of multiple single pipes spliced together.

[0017] As a further solution of the present utility model: Adjacent two single pipes are connected through a connection joint.

[0018] As a further solution of the present utility model: The wet dust collector is also connected with a water supply pipe to supplement dust removal water for the wet dust collector.

[0019] As a further solution of the present utility model: The wet dust collector is a water jet dust collector.

[0020] As a further solution of the present utility model: Two parallel crawlers for driving the base to move are also provided at the bottom of the base.

[0021] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0022] First, by adding a negative pressure generator to the dust suction pipeline connecting the wet dust collector and the dust collection hood in this application, the negative pressure generator is used to increase the air suction volume of the wet dust collector, making it not less than the reverse air volume during the drilling construction process, so as to avoid the situation of dust overflow during the dust removal process, thereby avoiding the pollution of the roadway caused by dust overflow, and further preventing the situation that affects the physical health and operation safety of construction workers. The wet dust collector atomizes the sucked dust into dust sewage to complete the dust reduction treatment of the dust generated during the drilling process; In summary, this application effectively solves the technical problem in the prior art that the negative pressure air suction volume of the dust collector is less than the reverse air volume of the drilling construction, resulting in dust overflow and polluting the roadway, thus affecting the physical health and operation safety of construction workers;

[0023] Second, this application designs the dust suction pipeline as a multi-section dust suction pipeline composed of multiple single pipes, which can be disassembled before transportation for easy transportation, and then assembled and used after being transported to the destination; When a fault occurs in the dust suction pipeline during use, a single pipe can be separately removed for maintenance or replacement to solve the problem faster and reduce the impact on the dust removal work efficiency. Description of the Drawings

[0024] Figure 1 It is a schematic structural diagram of the dust removal device for underground coal mines in the embodiment of the utility model;

[0025] Description of the reference numerals: 1, base; 2, wet dust collector; 3, dust collection hood; 4, dust suction pipeline; 5, negative pressure generator; 6, sewage tank; 7, water supply pump; 8, crawler. Detailed Embodiment

[0026] To make the objectives, technical solutions, and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the embodiments of the utility model. Apparently, the described embodiments are some, but not all, of the embodiments of the utility model. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the utility model without creative efforts shall fall within the protection scope of the utility model.

[0027] Refer to Figure 1 , a dust removal device for underground coal mines, including a base 1, a wet dust collector 2, a dust collection hood 3, a dust suction pipeline 4, a pressure generator 5, a sewage tank 6, a water supply pump 7, and a crawler 8. Among them, the wet dust collector 2 is a water jet dust collector, which is installed on the base 1. The water jet dust collector 2 is connected to the dust collection hood 3 through the dust suction pipeline 4, and the negative pressure generator 5 is installed on the dust suction pipeline 4.

[0028] Refer toFigure 1 The base 1 adopts a rectangular frame structure, on which a dust removal device is installed, and two parallel crawlers 8 are installed at the bottom. The crawlers 8 are used to assist the movement of the base 1. A sewage tank 6 and a drainage pump are also installed on the base 1. Two parallel crawlers 8 are provided at the bottom of the base 1 to facilitate movement.

[0029] Refer to Figure 1 For the wet dust collector 2, a water jet dust collector is selected in this application. Here, only one implementation manner is given for reference in this application, and it can be determined according to the actual situation specifically. This application does not make any limitations; the water jet dust collector is also connected to a water supply pipe (not shown in the figure) to supplement the dust removal water for the water jet dust collector.

[0030] Refer to Figure 1 The dust suction pipe 4 is a multi-section dust suction pipe, which is composed of multiple single pipes. The number of single pipes is determined according to the actual situation, and this application does not make any limitations. Adjacent two single pipes are connected through a connection joint, and it can be disassembled before transportation to facilitate transportation, and then assembled and used after being transported to the destination; when a failure occurs to the dust suction pipe 4 during use, a certain single pipe can be separately removed for repair or replacement to solve the problem faster and reduce the impact on the dust removal work efficiency.

[0031] Refer to Figure 1 The number of negative pressure generators 5 is several. The number of negative pressure generators 5 is determined according to the actual situation, and this application does not make any limitations. The negative pressure generators 5 are used to increase the air suction volume of the water jet dust collector 2.

[0032] Refer to Figure 1 The sewage tank 6 is connected to the wet dust collector 2 to collect and store the dust sewage from the wet dust collector 2.

[0033] Refer to Figure 1 The drainage pump is a diaphragm pump 7, which is connected to the sewage tank 6 to discharge the dust sewage stored in the sewage tank 6.

[0034] Other aspects are the same as above, the difference is that: the dust suction pipe 4 in this application can also adopt a complete pipe, and the specific selection can be determined according to the actual on-site situation, and this application does not make any limitations.

[0035] Other aspects are the same as above, the difference is that: the drainage pump 7 in this application can also adopt a sewage pump or a slurry pump or a centrifugal pump, and the specific selection can be determined according to the actual on-site situation, and this application does not make any limitations.

[0036] The specific operation principle of this application is as follows:

[0037] First, the dust hood 3 is used to control the diffusion of dust and particulate matter generated during the drilling process. Then, the wet dust collector 2 is used to suck the dust-containing gas in the dust hood 3, and the sucked dust-containing gas is atomized by the dust removal water provided by the water supply pipeline. After the dust-containing gas is atomized, it forms dust sewage and is transported to the sewage tank 6. Finally, the water supply pump 7 discharges the dust sewage in the sewage tank 6.

[0038] Specifically: The wet dust collector 2 is connected to the dust hood 3 through the dust suction pipeline 4, and several negative pressure generators 5 are installed on the dust suction pipeline 4. The wet dust collector 2 is used to suck the dust in the coal mine underground and atomize the sucked dust into dust sewage. During the process of sucking dust, the negative pressure generators 5 installed on the dust suction pipeline 4 are used to increase the air suction volume of the wet dust collector 2, making it greater than the reverse air volume during the drilling construction, so as to avoid the occurrence of dust overflow, and thus solve the technical problem that the negative pressure air suction volume of the dust collector in the prior art is less than the reverse air volume during the drilling construction, resulting in dust overflow and pollution of the roadway, thereby affecting the physical health and operation safety of construction workers.

[0039] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A dust removal device for use in coal mines underground, characterized in that, Comprising: Base (1); Wet dust collector (2), which is installed on the base (1) and sucks and atomizes dust; Dust collection hood (3), which is connected to the wet dust collector (2) through a dust suction pipe (4) and conveys the dust to the wet dust collector (2) through the dust suction pipe (4); Negative pressure generator (5), which is installed on the dust suction pipe (4); At the bottom of the base (1), there are also two parallel crawlers (8) for driving the base (1) to move.

2. The dust removal device for use in coal mines according to claim 1, wherein It also includes a sewage tank (6), which is installed on the base (1) and connected to the wet dust collector (2) to collect and store the dust sewage from the wet dust collector (2).

3. The dust removal device for use in coal mines according to claim 2, wherein: A drainage pump (7) is also installed on the base (1), and the drainage pump (7) is connected to the sewage tank (6).

4. The dust removal device for use in coal mines according to claim 3, characterized in that: The drainage pump (7) is a diaphragm pump.

5. The dust removal device for use in coal mines according to claim 1, wherein: The dust suction pipe (4) is a multi-section dust suction pipe, which is composed of a plurality of single pipes spliced together.

6. The dust removal device for underground coal mines according to claim 5, wherein: Adjacent two single pipes are connected through a connecting joint.

7. The dust removal device for use in coal mines according to claim 1, wherein: The wet dust collector (2) is also connected with a water supply pipe to supplement dust removal water for the wet dust collector (2).

8. The dust removal device for use in coal mines according to claim 1, characterized in that: The wet dust collector (2) is a water jet dust collector.

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