煤矿通风异常故障快速诊断技术的研究与应用

Research and Application of Rapid Diagnosis Technology for Abnormal Ventilation Faults in Coal mines

针对矿井通风系统诊断判定效率低、反馈精度不足和异常源判定时间长等情况,本文设计了一种通过风门压差时空特征分析快速诊断通风系统故障的技术。通过建立矿井通风可视化仿真系统,引入风门压差指数Md概念,分析风门压差时空特征与通风系统异常特征的联系,得到具体的异常源推导逻辑,并将诊断技术应用到实际。结果显示,此方法能稳定且高效地判定煤矿通风系统的异常源,缩短了30%的判定时间,显著提升了故障类型预警和判定准确率,节省了近50%的维修时间,为矿井增加了近200万的生产效益。

Aiming at the current situation of low diagnostic efficiency,insufficient feedback accuracy,and long diagnostic time for abnormal sources in mine ventilation systems,a technique for quickly diagnosing ventilation system faults through analyzing the spatio-temporal characteristics of damper pressure difference is designed.By establishing a visual simulation system for mine ventilation,introducing the concept of damper pressure difference index Ma,analyzing the relationship between the spatio-temporal characteristics of damper pressure difference and the abnormal characteristics of the ventilation system,obtaining specific abnormal source derivation logic,and applying diagnostic technology to practical applications.The results show that this method is stable and efficient in determining the abnormal sources of coal mine ventilation systems,reducing the judgment time by 30%,significantly improving the accuracy of fault type warning and judgment,saving nearly 50%of maintenance time,and adding nearly 2 million production benefits to the mine.