防范矿井提升机恶性过卷事故的探索与实践

Exploration of Preventing Malignant Overwinding Accident of Mine Hoist and Its Practice

在分析防范矿井提升机恶性过卷事故必要性的基础上,文章研究了几种预防矿井提升机恶性过卷事故的技术与方法。通过设立独立的行程监控单元,确保提升行程和速度给定准确无误;通过速度的优化控制,减轻驱动电流冲击对提升绳的损伤;通过连续和定点相结合的速度监控,实现速度保护的高可靠性;通过优化装卸载工艺控制,预防错误装载故障导致的过卷事故。文章中提出的各种技术与方法是在实际应用中总结得出的,应用效果良好。

Based on analyzing the necessity of preventing malignant overwinding accident of mine hoist, the paper studied some technologies and methods of preventing malignant overwinding accident of mine hoist. Through setting independent monitoring and control unit of traveling, hoisting traveling and speed setting are guaranteed accurately. Through optimized control of speed, damage is reduced for hoisting rope by impact of driving current. Through continual and fixed-point monitoring and control for speed, high reliability of speed protection is realized. Through control of optimizing loading and unloading process, overwinding accident caused by wrong loading fault is prevented. The technologies and methods proposed in the paper are gotten in actual application and have good effect.