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Air jet flow dedusting device for drilling of mine

A dust collector and jet technology, used in mining equipment, earth-moving drilling, gas discharge, etc., can solve the problem of easy sliding of the inflatable anti-blown dust collector, reduce blockage of the air inlet, improve airflow resistance, increase and improve The effect of the dust removal effect

Pending Publication Date: 2018-05-08
南京凌翔节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Through the above technical scheme, the above-mentioned expandable anti-blowout dust collection pipe is placed in the drill hole, and after being quickly connected with the external high-pressure water gun through the quick plug, high-pressure water is passed into the water pipe of the expandable anti-spray dust collection pipe, and the steel wire rubber tube Water-filled expansion makes the end of the expandable spray-proof dust-collecting tube with the steel wire rubber tube stuck in the drill hole, which improves the problem that the expandable spray-proof dust-collecting tube is easy to slip during the drilling process; and because the steel wire rubber tube has a certain The strength makes it difficult for water to flow out from the steel wire rubber tube and cause a gap between the expansion type anti-spray dust collection pipe and the drill hole, thereby reducing the gas leakage and improving the distance between the steel wire rubber tube and the expansion type anti-spray dust collection pipe. Excellent airtightness, no need to consume polymer foam material; by using a steel wire rubber tube to seal the gap between the drill hole and the expansion type anti-spray dust collection pipe, all the gas gas will be sucked into the expansion type anti-spray dust collection pipe In the process, solid particles such as gas, dust, and cinders are sprayed into the construction roadway from the gap between the drill hole and the expansion anti-spray dust collection pipe, which avoids gas exceeding the limit and improves the personal safety of workers in the mine roadway; and Through the sealing connection between the expansion anti-blowout dust collection pipe and the composite dust suction cover of the blowout hole, it can well cover the dust generated during the drilling process, effectively prevent the dust from gushing, and achieve the purpose of preventing the blowout hole; The high-pressure gas input into the pipe generates negative pressure in the jet pipe to provide the power to transport dust and gas outside, without static friction, which is safer; after the gas gas and dust are discharged from the drilling hole, they pass through the expansion dust collection pipe and the blowout prevention hole in sequence The composite dust collection hood and dust delivery pipe enter the atomization dust removal chamber, and the dust is atomized by the spraying of the annular sprayer, and the sewage is intercepted by the interceptor, and then discharged through the sewage pipe below the atomization dust removal chamber, and the purified The mixed gas of gas and air is sucked into the jet tube, and then discharged into the gas discharge pipe through the gas collector, effectively removing the dust generated during the drilling process, realizing the separation of dust and gas, and achieving the purpose of collecting gas , Improve the personal safety of workers during coal mining and drilling

Method used

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  • Air jet flow dedusting device for drilling of mine
  • Air jet flow dedusting device for drilling of mine
  • Air jet flow dedusting device for drilling of mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044] Embodiment 1: a kind of air jet dust collector for mine drilling, such as figure 1 As shown, it includes in turn the expansion type anti-spray dust collection pipe 4, the composite dust collection cover 1 with anti-spray holes, the dust delivery pipe 15, the atomization dust removal chamber 5, the jet pipe 2 and the gas collector 3, all of which are welded by stainless steel plates , has good corrosion resistance, and the equipment has the advantages of light weight, high strength, not easy to damage, and long service life.

[0045] Such as figure 1 and 3 As shown, the end of the expansion type anti-spray dust collection pipe 4 extending into the borehole is a gas inlet 45, and the end of the expansion type anti-spray dust collection pipe 4 near the gas inlet 45 is sleeved with a stainless steel pipe 41, the stainless steel pipe 41 is sealed and welded on the outer pipe wall of the expansion type spray-proof dust collecting pipe 4 at one end away from the gas inlet 45...

specific Embodiment approach

[0057] Specific implementation method: when the operator uses it, first use a drilling machine to initially drill holes, then take out the drill pipe, place the expansion type anti-spray dust collection pipe 4 in the drill hole, and then place the expansion type anti-spray dust collection pipe 4 4 The end close to the water pipe 44 is connected to the drill pipe outlet 13 of the blowout hole composite dust collection cover 1, and the air inlet pipe 2 543 of the atomizing dust removal pipe is connected to the blowout hole composite dust collection cover 1 through the dust delivery pipe 15 , and then through the threaded rod 55 or snap piece 16 and hook 165, the atomizing dedusting chamber 5, the jet pipe 2 and the gas collector 3 are quickly connected in sequence, and the jet pipe 2 is connected to the gas collector 3 through the snap piece 16 and the hook 165. The high-pressure gas delivery pipe 21 is connected, and the air jet dust collector for this kind of mine drilling can ...

Embodiment 2

[0061] Embodiment 2: a kind of air jet dust collector for mine drilling, such as Figure 12 As shown, the difference from Example 1 is that the opening direction of the coal dust discharge pipe 17 is perpendicular to the blowout hole composite dust collection cover 1, and this kind of blowout hole composite dust collection can be used except for drilling at a large elevation angle. When the cover 1 is used for drilling in a nearly horizontal direction, the coal dust discharge pipe 17 is made vertically downward or obliquely downward by rotating the anti-spout hole composite dust suction cover 1, which is convenient for large particles of coal dust to be naturally discharged under the action of gravity. Slip, and can not accumulate in coal dust discharge pipe 17.

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PUM

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Abstract

The invention discloses an air jet flow dedusting device for drilling of a mine and belongs to the field of coal mine well equipment. The air jet flow dedusting device for drilling of the mine aims atachieving a great hole sealing effect and effectively exhausting dust. According to the technical scheme, the device includes an atomizing dedusting chamber, a jet flow pipe, a composite dust suctionhood for preventing hole jetting, a dust conveying pipe and a gas collector; the composite dust suction hood for preventing hole jetting comprises an upper cover body and a lower cover body, the twoopposite sides of the upper cover body are provided with a drill rod outlet and a drill rod inlet respectively, and the composite dust suction hood for preventing hole jetting is connected with the atomizing dedusting chamber and is in sealed connection with an expandable anti-jetting dust collecting pipe one end of which is provided with a steel wire rubber pipe; the outer wall of the expandableanti-jetting dust collecting pipe is provided with a water pipe communicated with the steel wire rubber pipe, the end, away from the steel wire rubber pipe, of the water pipe is provided with a quickconnector plug, and the steel wire rubber pipe is fixedly connected to the outer wall of the expandable anti-jetting dust collecting pipe in a sealed mode.

Description

technical field [0001] The invention relates to a dust collector, in particular to an air jet dust collector for mine drilling. Background technique [0002] Gas disasters are one of the main causes of coal mine safety accidents. With the expansion of the coal mining area and the increase in depth, some original low gas mines have also become high gas mines, so the situation of coal mine safety production is still severe. Accidents happen from time to time. Therefore, the prevention of gas disasters is of great significance to reduce coal mine accidents and ensure the healthy and sustainable development of the coal industry. Draining before mining is an important measure to reduce the gas content in the coal seam and prevent gas explosion accidents. Draining before extraction is the method of pre-extracting gas through drilling to reduce the gas content in the coal seam and improve the safety of mine production. At the same time, the collected gas can also be used as an en...

Claims

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Application Information

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IPC IPC(8): E21B21/015E21B33/06E21F7/00
CPCE21B21/015E21B33/06E21F7/00
Inventor 卞宗君乐兴
Owner 南京凌翔节能科技有限公司
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