摘要：文章介绍了济宁市范围内的一些煤矿单位对矿井提升机和井下带式输送机等煤矿设备应用变频调速技术的防爆问题进行的研究与实践，对于类似情况的矿区具有一定的参考价值。

    关键词：煤矿；变频器；防爆；提升机；带式输送机

Abstract: The article introduces the research and practice of the application of the variable frequency speed regulation technology for the mine hoist and the belt conveyor in the range of Jining city. It has a certain reference value for the similar situation.

Key words: Coal mine；Inverter；Explosion-proof；Mine hoist；Belt conv