选煤厂设备健康信任度判别方法研究与实践  

Study and practices on discriminance method of health trust degree for equipment applied in coal preparation plant

作　　者：刘卫东[1,2] 孙文达[1] 张震[1] 

机构地区：[1]中国矿业大学物联网(感知矿山)研究中心,江苏徐州221008 [2]兖州煤业股份有限公司兴隆庄煤矿,山东兖州272100

出　　处：《煤炭科学技术》2015年第12期104-108,共5页Coal Science and Technology

基　　金："十二五"国家科技支撑计划资助项目(2012BAH12B02;2013BAK06B05)

摘　　要：针对选煤厂设备故障模式先验未知的不利条件,提出选煤厂设备健康信任度判别方法。根据选煤厂设备滚筒轴座测量采样的振动数据建立时间序列,选取设备正常运行特征参数作为正常工作的模态集,建立基于模态的健康信任度预报方法,其中,特征参数的选择主要是依据频率贴近度。通过对滚筒轴座测量的振动数据进行训练,建立最优模态集,再利用该模态集对滚筒轴座的其他振动测量数据进行判断,从而判断滚筒轴座是否偏离正常工作状态,得出设备健康信任度的判别依据。将选煤厂设备健康信任度判别方法应用于兴隆庄煤矿选煤厂设备监测中,监测结果表明,该方法可区分正常与故障2种状态,并具有运算量适中的特点。According to the priori unknown unfavorable condition of the equipment fault mode applied in the coal preparation plant, the dis- criminance method of the health trust for the equipment applied in the coal preparation plant was provided.According to the time sequence established by the vibration data from the measurement and sampling of the drum bearing seats in the coal preparation plant,the normal op- eration features of the equipment were selected as the modal set of the normal working and a prediction method of the health trust degree was established based on the modal.Among them,the selection of the feature parameters was mainly in the light of the frequency closeness degree,With the training conducted on the vibration data measured from the drum shaft seats, an optimal modal set was established and was applied to make the judgement on the other vibration measured data of the drum shaft seats.Then the optimal modal set could be applied to judge the drum shaft seats whether out off the normal working status and to have the discriminance basis of the equipment health trust de- gree.The discriminance method of the equipment health trust degree applied in the coal preparation plant was applied to the monitoring and measuring of the equipment applied in the Xinglongzhuang Coal Preparation Plant and the results showed that the method could distinguish the normal and fault status and could have the suitable calculation features.

关 键 词：选煤厂 健康信任度 模态集 时间序列 数据挖掘 

分 类 号：TD67[矿业工程—矿山机电]