煤矿井下部分启动器存在的问题及改进

QC83系列矿用隔爆磁力启动器在我国煤矿已使用50余年,国家经贸委在《淘汰落后生产能力、工艺和产品目录》中已明确列出并令立即淘汰,但我国多数煤矿井下仍在继续使用。而替代产品QCZ、QBZ、BQD型真空电磁启动器的操作回路仍为非本安型,在管理使用中存在一些问题,在故障状态下易误启车,造成设备损坏、人员伤亡。文章介绍了解决此问题的对策。

Pen Questions and Improvement for Some Motor Starters Used in Mine

Series QC83 Ex d magnetic starters had used in coal mine for 50 years in our country.It was the replacement product listed in the product catalogue weeded for out-of-date technology and technique,which issued by the national business and economic committee.However,it is still continue in service in some coal mines.In fact,types of QCZ,QBZ and BQD vacuo-electromagnetic starter,substituted for the old ones,have some problems to be solved,for example,the operation loop is non intrinsically safe circuit which is easy to cause mis-starting under fault conditions,damaged the equipments and persons injuries and deaths.In this article,the author presents the countermeasures for such problems.