Coal mine down-hole drill hole water jet negative-pressure dedusting device

A dust removal device and negative pressure technology, which is applied in injection devices, injection devices, earthwork drilling and mining, etc., can solve the problems of large volume and high cost, and achieve the effect of large coverage area, high efficiency, and reduction of coal ash floating dust

Inactive Publication Date: 2012-06-27
淮南同正科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These equipments are bulky and expensive,

Method used

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  • Coal mine down-hole drill hole water jet negative-pressure dedusting device
  • Coal mine down-hole drill hole water jet negative-pressure dedusting device
  • Coal mine down-hole drill hole water jet negative-pressure dedusting device

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Example Embodiment

[0044] Such as figure 1 As shown, the first embodiment of the water jet negative pressure dust removal device for the hole of the coal mine drilling rig according to the present invention includes a drainage cover 1, a drainage hose 2, a negative pressure dust removal pipe 4, a spray head 3, a high pressure water inlet pipe 6, and a drainage cover 1. The outlet 11 is connected to the drainage hose 2 and the negative pressure dust removal pipe 4 in turn, the water outlet end of the high pressure water inlet pipe 6 extends into the negative pressure dust removal pipe 4, the water outlet end of the high pressure water inlet pipe 6 is connected to the spray head 3, and the high pressure water inlet pipe 6 It is welded and connected with the negative pressure dust removal pipe 4. The inlet end of the high-pressure water inlet pipe 6 is in communication with a downhole high-pressure water pipe (not shown in the figure). The high-pressure water inlet pipe 6 is connected in series with ...

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Abstract

The invention discloses a coal mine down-hole drill hole water jet negative-pressure dedusting device, which comprises a guide hood, a guide hose, a negative-pressure dedusting pipe, a fog-spray nozzle, a high pressure water inlet pipe, a three-way pipe, wherein the guide hood is provided with an inlet, an outlet and a drill rod through hole; the outlet of the guide hood is connected with the guide hose and the negative-pressure dedusting pipe in turn; the water outlet of the high pressure water inlet pipe extends into the negative-pressure dedusting pipe; the water outlet of the high pressure water inlet pipe is connected with the fog-spray nozzle; the high pressure water inlet pipe is fixedly connected with the pipe wall of the negative-pressure dedusting pipe; the water inlet of the high pressure water inlet pipe is communicated with a down-hole high pressure water pipe; the high pressure water inlet pipe is connected in series with the three-way pipe and a water inlet valve; another inlet of the three-way pipe is connected with a high pressure air inlet pipe; an air intake valve is arranged on the high pressure air inlet pipe; the high pressure air inlet pipe is communicated with a down-hole high pressure air pipe; the bottom at the rear end of the negative-pressure dedusting pipe is provided with a drain hole; and the drain hole is communicated with a drainage hose.

Description

technical field [0001] The invention belongs to the technical field of underground drilling in coal mines, and in particular relates to a water jet negative pressure dedusting device at an orifice of an underground drilling rig in coal mines. Background technique [0002] Drilling is an important step to ensure safe production in coal mines. Its main purpose is to drain the gas in the coal seam in advance. Usually the drilling depth is 40 meters to 60 meters. Coal cutting is usually blown out of the drill hole with compressed air, causing a lot of dust to the working environment Pollution has brought great harm to the health of workers. In addition, dust is also one of the main natural disasters in coal mines. When the dust concentration reaches a certain level, it is very easy to cause dust explosion. Therefore, controlling the dust at the orifice of the drilling rig has always been an important issue for the safe production of coal mines. [0003] Currently known dust re...

Claims

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Application Information

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IPC IPC(8): E21B21/00B05B1/34
Inventor 李胜祥王永王开松蔡如法高艳忠赵前进贺东
Owner 淮南同正科技有限公司
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