Downhole drilling anti-dust device

Abstract

A downhole drilling anti-dust device belongs to the field of accessory equipment of coal mine excavation. The anti-dust device is semispherical and comprises a hitch device, a water inlet pipe, annular mist spray water pipes and connecting parts, wherein the hitch device is installed on the outer circle of the anti-dust device and can be firmly installed on an excavation face; the multiple annular mist spray water pipes are disposed and annularly and uniformly arranged on cross sections with different radiuses; a mist spray device is disposed on the annular mist spray water pipe; and the connecting parts are uniformly distributed along the radial direction of the semispherical shape and perpendicular to the mist spray water pipes. The downhole drilling anti-dust device is characterized in that the device can effectively reduce generation of raised dust during drilling of a coal mine excavation working face, will not influence other surrounding construction work and saves water resources.

Description

technical field

[0001] The invention belongs to the field of auxiliary equipment for coal mining, in particular to an underground drilling dust-proof device. Background technique

[0002] In the production of coal mines, it is often necessary to drill holes on the mining surface, which will generate a lot of dust. Most of the time, the dust is composed of coal powder. The flying of these coal powders will affect the staff working on the mining surface. At the same time, when coal powder accumulates to a certain proportion of air, there will be a danger of explosion, and drilling operations are a necessary task for coal mining. Therefore, in order to prevent a large amount of coal dust from being produced, most manufacturers use water injection. Eliminate dust, the effect of this is to eliminate dust, but it will cause a lot of running water on the working surface, pollute the working environment, and at the same time need drainage facilities, a large amount of water injectio...

Examples

Embodiment Construction

[0008] In order to further illustrate the technical solution of the present invention, the specific implementation manner of the present invention is now described in conjunction with the accompanying drawings, as figure 1 , the dust-proof device that adopts in this example adopts outer ring diameter 500 millimeters, inner hole diameter 100 millimeters, the profile of hemispherical radius 250 millimeters, spray water pipe 4 adopts the thin-walled seamless steel pipe of diameter 14 millimeters; Make a water spray hole less than 1 mm on the top as a spray device; select the same thin-walled steel pipe as the connector 2, 5, and connect the three spray water pipes 4 together; at the same time, the connector 2 and 5 are located on the inside of the hemisphere and also set the spray device ; Connectors 2 and 5 are multiple, select 15 to be evenly arranged on the surface of the hemisphere in this example; select the steel plate with thickness 8 millimeters as the hook device 6 in thi...

technical field

[0001] The invention belongs to the field of auxiliary equipment for coal mining, in particular to an underground drilling dust-proof device. Background technique

[0002] In the production of coal mines, it is often necessary to drill holes on the mining surface, which will generate a lot of dust. Most of the time, the dust is composed of coal powder. The flying of these coal powders will affect the staff working on the mining surface. At the same time, when coal powder accumulates to a certain proportion of air, there will be a danger of explosion, and drilling operations are a necessary task for coal mining. Therefore, in order to prevent a large amount of coal dust from being produced, most manufacturers use water injection. Eliminate dust, the effect of this is to eliminate dust, but it will cause a lot of running water on the working surface, pollute the working environment, and at the same time need drainage facilities, a large amount of water injectio...

Examples

Embodiment Construction

[0008] In order to further illustrate the technical solution of the present invention, the specific implementation manner of the present invention is now described in conjunction with the accompanying drawings, as figure 1 , the dust-proof device that adopts in this example adopts outer ring diameter 500 millimeters, inner hole diameter 100 millimeters, the profile of hemispherical radius 250 millimeters, spray water pipe 4 adopts the thin-walled seamless steel pipe of diameter 14 millimeters; Make a water spray hole less than 1 mm on the top as a spray device; select the same thin-walled steel pipe as the connector 2, 5, and connect the three spray water pipes 4 together; at the same time, the connector 2 and 5 are located on the inside of the hemisphere and also set the spray device ; Connectors 2 and 5 are multiple, select 15 to be evenly arranged on the surface of the hemisphere in this example; select the steel plate with thickness 8 millimeters as the hook device 6 in thi...

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