KXT131矿用提升信号机装置的应用

介绍的KXT131矿用提升信号机装置,通过技术论证和现场实践后,符合了实际控制回路的需要,杜绝了因旧信号机与新增的安全控制回路的不匹配。缩短了检修人员的维护时间,从而保障了副井人员和设备、物料的正常上、下井,消除了事故安全隐患。

Wavelets applied to early fault analysis of hoist gear box

Using wavelets, the vibration signal of a certain mine hoist gear box was analyzed. By multiple comparison analysis, the rational wavelet basis function was determined. Fault characteristic frequencies of hoist gear box were identified. The research indicates that the hoist＇s fault information is non-stationary, and non-stationary signal is clearly extracted by using db20 wavelet as basis function. The db20 wavelet is the proper wavelet base for vibration signal analysis of the hoist gear box.

防止煤矿斜巷矿车误入其他巷道的安全监控装置

基于触点闭锁原理,叙述了一种用于煤矿斜巷防矿车误入其他巷道的信号和道岔闭锁监控装置原理。这种装置使得煤矿斜巷运输系统的安全性和可靠性有了大大的提高。