Gas control and dust fall method for overlapped section of air barrels in excavation roadway

Gas control and dust fall method for overlapped section of air barrels in excavation roadway

The invention belongs to the field of coal mine ventilation and safety, in particular relates to a gas control and dust fall method for an overlapped section of air barrels in an excavation roadway, and solves the problem that dust and gas generated in the process of excavating a large cross section...

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Hauptverfasser: XU HUIFANG, ZHANG YUHENG, CAO XUEQIN, DONG BINGWEN, WANG JIAXUE, XIN XIANYAO, NIU JIANGJIANG
Format: Patent
Sprache:chi ; eng
Schlagworte:
EARTH DRILLING
FIXED CONSTRUCTIONS
MINING
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
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creator XU HUIFANG
ZHANG YUHENG
CAO XUEQIN
DONG BINGWEN
WANG JIAXUE
XIN XIANYAO
NIU JIANGJIANG
description The invention belongs to the field of coal mine ventilation and safety, in particular relates to a gas control and dust fall method for an overlapped section of air barrels in an excavation roadway, and solves the problem that dust and gas generated in the process of excavating a large cross section roadway easily exceed the standard. An air pressing barrel is arranged in the roadway; the front end of the air pressing barrel reaches an excavation working area; a dust removal fan is arranged at a position, which is 90 to 110m away from a fully mechanized excavation working face, in the roadway, and is 90 to 110m away from the working face all the time with roadway excavation; an air inlet of an air extracting barrel of the dust removal fan is positioned in the excavation working area; and an air outlet distribution device is arranged at a position, which is adjacent to the dust removal fan, of the air pressing barrel, and distributes air flow in the air pressing barrel, and the distributed air dilutes the gas
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subjects EARTH DRILLING
FIXED CONSTRUCTIONS
MINING
SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, ORDRAINING IN OR OF MINES OR TUNNELS
title Gas control and dust fall method for overlapped section of air barrels in excavation roadway
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