KHJ型矿用本安型急停开关防尘防水研究

Research on Dustproof and Waterproof of KHJ-Type Mine-Used Intrinsically Safe Emergency Stop Switch

介绍了应用于煤矿井下掘进巷道可伸缩带式输送机上的KHJ型拉线急停开关的结构组成和工作原理,分析了因工作环境因素引起的拉线急停开关常见故障。针对工作环境中水分和粉尘引起的锈蚀和堵塞等故障提出了解决方案,设计了一种防尘防水的KHJ型拉线急停开关专用保护外壳,可以减少设备发生故障时因急停开关无响应而不能及时停机引起的事故扩大情况。

This article introduces the structure and working principle of the KHJ-type pull-wire emergency stop switch applied to the retractable belt conveyor in the mine tunnel.The common failures of pull-wire emergency stop switches caused by working environment factors are analyzed.Solutions are proposed for the rust and blockage caused by moisture and dust in the working environment.This paper designs a dust-proof and waterproof KHJ-type cable emergency stop switch special protective shell,which can reduce the accident expansion caused by the failure of the emergency stop switch and the failure to stop in time when the equipment fails.