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...

AI Technical Summary

Problems solved by technology

[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 injection will also make the waterproof performance of electrical appliances face the test; some enterprises use in The water curtain is arranged on the working surface to reduce the generation of dust. The water curtain is the same as the water injection method, which needs to waste a lot of water. At the same time, the water curtain isolates the dust from the working surface and other areas, but the staff on the working surface, especially It was the drillers who were still exposed to the dust

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