矿井地面通风QBZ-120/225启动开关自动切换技术改造

Technology Reformation of Auto Cutting System for QBZ-120/225 Switch in Mine Ground Ventilation

针对矿井基本建设地面通风机现状,依据QBZ-120/225启动风机开关的原理对其开关进行技术改造,以实现通风机自动切换的目的。

Aiming at the ground ventilators condition in mine basic construction, according to the principle of QBZ- 120/225 ventilator switch, the technology reformation of auto cutting system of QBZ- 120/225 switch is carried out, in order to realized the purpose of ventilators auto cutting.