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唐山市煤炭工业公司所属31座地方国营和乡镇集体小煤矿,除屈庄、西窑、北寺3座小煤矿已采用离心式主扇风机通风外,其余的小煤矿还都延用着十多年前建井初期采用的以局部扇风机代替主扇风机(以下简称以局代主)运行的通风方式(即局扇安装在地面总回风井口的通风方式)。由于小煤矿资金紧张、开采年限短等原因,近期内还难以改变这种以局代主的通风方式。笔者就这种通风方式的合理性问题,谈一下自己的粗浅看法。 《小煤矿安全规程》对局部扇风机运行能否作为主要扇风机运行,没有作明确规定。就唐山市小煤矿现行通风机运行方式来说,普遍采用着单机以局代主和双机以局代主的通风方式。
Tangshan City Coal Industry Corporation owned 31 local state-owned and township collective small coal mines, in addition to the Zhuji, Xiyao, North Temple 3 small coal mines have been using centrifugal fan ventilation, the other small mines have also been extended with more than 10 years Before the construction of wells used in the early part of the fan instead of the main fan (hereinafter referred to as the main agent on behalf of) run the ventilation method (that is, the fan installed in the ground floor of the return air well ventilation). Due to the shortage of funds and the short exploitation period of small coal mines, it is still difficult to change the ventilation mode of substituting the main bureaus in the near future. The author on the rationality of this ventilation, talk about their own superficial view. “Small coal mine safety regulations” on the local fans can run as the main fan fan operation, did not make it clear. In terms of current fan operation mode of small coal mines in Tangshan City, it is common to adopt the ventilation mode in which the main unit and the dual unit are replaced by the bureau on behalf of the main unit.