摘要
针对矿井主通风机切换过程中发生瓦斯超限的问题,分析了现有的主通风机切换方案,指出实现主通风机不停风切换的关键是要避免运转风机和备用风机在切换过程中同时运行在额定状态下;提出了一种矿井主通风机不停风切换方案,并提出可采用PLC实现该方案的自动控制;最后对该方案的供电系统要求及目前煤矿实现该方案时面临的主要问题进行了分析,认为该方案具有较强的可行性。
For problem of gas overrun in switchover of mine main ventilators, the paper analyzed existing switchover scheme of main ventilators, and indicated that key problem of switchover of main ventilators without off-blast is avoiding the running ventilator and the standby one running in rated condition simultaneously in switchover process. It proposed a switchover scheme of mine main ventilators without off-blast, which could be implemented in an automatic control way with PLC technology. Finally, It analyzed requirements on power supply system and main questions in implement of the scheme and considered that the system has strong feasibility.
出处
《工矿自动化》
2011年第9期26-29,共4页
Journal Of Mine Automation
关键词
煤矿
主通风机
不停风切换
瓦斯超限报警
自动控制
coal mine, main ventilator, switchover without off-blast, alarming for gas overrun, automatic control
