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一、现状篦子沟矿采用分段崩落采矿法,两翼式通风系统(图1)。专用入风井有一台直径2.4米的风机,作压入式通风。新鲜风流直接进入各分段水平的顶盘进风联络道,分送给各电耙道。污风经底盘岩石平巷汇集后,由回风井排出地表;目前已投产的4、10号矿体的污风则由804平洞口外的直径1.8米风机抽出至地表。篦子沟矿在通风系统方面,多年来作了巨大的努力,掘凿了专用进回风井巷,初步形成了适合于多中段开采分段崩落法的矿井通风系统,改善了劳动条件,促进了生产的发展。但由于种种原因,粉尘浓度合格率仍
First, the status quo gizzard ditch using subsidence mining law, two-wing ventilation system (Figure 1). Dedicated air intake wells have a 2.4 m diameter fan, for press-in ventilation. Fresh air flow directly into the sub-level of the roof into the wind contact Road, sent to the various electric rake. After collecting the polluted air through the chassis rock lanes, the surface air is discharged from the air return well; the polluted air of Nos. 4 and 10 ore bodies that have been put into operation are drawn to the surface by the 1.8-meter diameter fan outside the 804-hole opening. In the aspect of ventilation system, Goupitou Mine made tremendous efforts over the years, dug up a dedicated air intake and return airway, initially formed a mine ventilation system suitable for multi-section mining subsidence method, improved working conditions and promoted Production development. However, due to various reasons, the dust concentration pass rate is still