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Adjustable wall attaching air duct used for comprehensive tunneling face of mine

A wall-mounted air duct and adjustable technology, which is used in mine/tunnel ventilation, mining equipment, earth-moving drilling, etc. Wind and other problems, to achieve the effect of easy operation, maintenance and replacement, improved dust reduction effect, and wide practicability

Inactive Publication Date: 2015-09-30
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to facilitate transportation, installation and use, most of the existing wall-attached air ducts are made of flexible air duct cloth and other materials. The small holes arranged on the wall of the duct can not provide greater air flow from the side while weakening the structural strength of the attached air duct. , virtually reducing the air supply to the working face
At the same time, when working in other processes on the fully mechanized excavation face, such as support and maintenance operations, there are many operators in front. Provide sufficient fresh air flow for workers to breathe and cool down

Method used

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  • Adjustable wall attaching air duct used for comprehensive tunneling face of mine
  • Adjustable wall attaching air duct used for comprehensive tunneling face of mine
  • Adjustable wall attaching air duct used for comprehensive tunneling face of mine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] During installation, connect the air inlet 1 with the air outlet of the press-in air cylinder in the roadway, and fix the hook 6 on the top plate with iron wire or cable ties, so that the wall air cylinder hangs straight; when excavating, use the air volume control ring The control rope in 8 tightens the air outlet 9, and reduces the caliber of the front air outlet 9 to reduce the air volume at the front, so that the air flow can flow out from the wall air outlet 5 through the annular air guide tube 7 according to the actual needs. The tuyere 3 flows out, which plays the role of blocking the working flour dust. The barrel 2 is made of flame-retardant and antistatic material air duct cloth, which is light in weight, durable and easy to maintain; the support frame 4 is made of welded 3-5mm steel bars with good toughness, which is used to support the annular air duct 7, so that it will not be deformed, and the upper hook 6 is used to hang the attached wall air duct.

Embodiment 2

[0023] When installing, connect the air inlet 1 with the air outlet of the press-in air cylinder in the roadway, and fix the hook 6 on the top plate with iron wire or cable ties, so that the wall-attached air cylinder hangs straight, and loosen the air volume control ring 8. Control the rope, release all the front air outlets 9, and most of the air flow will flow out from the front air outlets 9 under the action of inertia, to meet the needs of the operators on the excavation surface; the barrel 2 is all made of flame-retardant and antistatic material air duct cloth It is light in weight, strong and durable, and easy to maintain; the support frame 4 is welded by 3-5mm steel bars with good toughness, and is used to support the annular air guide tube 7 so that it will not deform, and the hook 6 on it is used to hang the attached wall dryer. Through the above methods, the dust-reducing effect of the long-pressure-short-suction ventilation and dust-reduction system on the mechaniz...

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Abstract

Provided is an adjustable wall attaching air duct used for a comprehensive tunneling face of a mine. The adjustable wall attaching air duct is provided with a duct air outlet controllable in air volume, a lateral wall air guide assembly and a duct body, wherein the duct air outlet is provided with an air volume adjusting ring and an adjusting rope penetrating through the air volume adjusting ring; the lateral wall air guide assembly comprises a duct wall air outlet and an annular ventilating duct; the duct wall air outlet is formed in the lateral duct wall; the annular ventilating duct is located on the lateral face of the duct body and connected with the duct wall air outlet. The adjustable wall attaching air duct is suitable for mine borehole operation; a long pressure and short pumping type ventilation dedusting system is additionally arranged at the front end of the press-in air duct air outlet when used for treating coal cutting of the comprehensive tunneling face, and is used for changing an air flow field and blocking dust from diffusing outwards, a dust remover can suck and process dust conveniently, and the dust fall efficiency of the tunneling face is improved. The air duct is simple in structure, convenient to install, easy to operate, maintain and replace, safe and reliable in operation, and high in practicability.

Description

technical field [0001] The invention relates to an adjustable wall-attached air duct, in particular to an adjustable wall-attached air duct suitable for the prevention and control of dust in fully mechanized mine excavation. Background technique [0002] At present, the prevention and control of flour dust disasters in fully mechanized excavation at home and abroad mainly adopts the technologies of internal and external spraying of roadheaders, adding wetting agents for chemical dust removal, dust removal by dust collectors, ventilation and dust removal, and foam dust reduction technologies. One of the key points in the dust removal of the dust collector is to suck the dust into the dust collector, and then settle it for processing. Limited to the wind speed requirements of the roadway and the need to prevent circulating air, the exhaust air volume of the dust collector should not be too large. At the same time, the high-speed air flow of the press-in air duct will greatly d...

Claims

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Application Information

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IPC IPC(8): E21F1/04
Inventor 蒋仲安张义坤陈举师王洪胜王明彭亚
Owner UNIV OF SCI & TECH BEIJING