Blowout prevention and dust prevention device

Abstract

The invention discloses a blowout prevention and dust prevention device. The device comprises a spraying system, a wind pressure system and an embedded pipe, wherein the outer end part of the embedded pipe is connected with a dust prevention housing; the upper part of the dust prevention housing is provided with a spraying head which is connected with the spraying system, and the lower part of the dust prevention housing is provided with a gas-residue separator which is connected through a conduit; the gas-residue separator comprises a material guide cylinder and a residue discharger; the material guide cylinder is provided with a negative pressure port and a pneumatic reversing valve; the residue discharger comprises a sealed cylinder body; an elbow pipe which is connected with a funnel port of the material guide cylinder is fixed on the inner side of a top cover of the sealed cylinder body; the port of the elbow pipe is provided with a control cylinder; the lower part of the sealed cylinder body is provided with a residue discharge port; and the residue discharge port is provided with a check valve. Through the device, single-roadway multi-drill parallel work can be realized; water, ash and residue in the sealed cylinder body are discharged under the action of pneumatic pressure; harmful gases such as gas and the like are extracted and discharged to a specific position through the negative pressure pipe; the progress of mine floor layer-crossing hole-drilling construction is greatly improved; and the device has the characteristic of controlling dust for hole drilling anddry hole drilling at explosive dangerous places with methane gas, toxic gas and the like.

Description

technical field

[0001] The invention relates to a blowout-proof and dust-proof device, which is especially suitable for the dust control of drilling holes in coal mines, drilling along layers, drilling holes in metal mines, tunnels and other projects. Background technique

[0002] As the mining depth of the mine is getting deeper and deeper, the underground pressure is increasing, and it is easy to emit gas, harmful gas, dust, and outburst coal during the drilling process. This situation has always been a problem that those skilled in the art are trying to solve. . At present, there are two methods of drilling in various mines. The first is to drill holes with water. Its advantages are dust-proof and can avoid the temperature rise of the drill bit. The disadvantage is that it is easy to jam the drill pipe, the drilling progress is slow, and gas and Coal cannot be solved. The second is to use gas to drill holes. The advantage of this method is that there are fewer stuck dri...

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