离心式风机风门绞车控制系统的改造

Transform of fan wind door hoist control system

二矿桑掌离心式风机风门绞车电气控制系统中 ,反风门绞车的控制设计意图与实际存在少许偏差 ,使实际操作中会出现两扇风门反风动作方向相反的现象。这种现象一旦出现在反风操作时 ,就会延长反风操作时间 ,给井下生产和矿工生命安全带来威胁。对风门绞车集中控制系统中的反风环节提出改造方案 ,既减少误操作 ,又可避免上述现象的产生。

In the electrical control system on the centrifugal ventilator,ventilation door and winch in Sangzhang in the second coal mine,there is a deviation between the design on the reverse ventilation door,winch and the actual operation.So the phenomenons of the two doors act in the opposite direction appear in the actual operation.It will prolong the operation time so long as the reverse ventilation occurs.In the same time it will constitute to a menace to the security of the production and the workers' lives who work underground.This paper proposes amendments and addenda in the reverse ventilation in the concentric control system on ventilation door and winch.It can not only reduce error in operating but also avoid the appearance discribed above.