搅拌过程电信号的充填料浆质量浓度表征研究  

Study on the Characterization of the Mass Concentration of Filling Slurry Using Electrical Signals During the Stirring Process

作　　者：李立涛 陈小伟[1,2] 夏长念 LI Litao;CHEN Xiaowei;XIA Changnian

机构地区：[1]中国恩菲工程技术有限公司,北京100038 [2]金属矿膏体充填安全绿色开采国家矿山安全监察局重点实验室,北京100038

出　　处：《中国矿山工程》2024年第6期61-67,共7页China Mine Engineering

基　　金：国家重点研发计划“高应力下金属矿规模化低放热高强充填体的成型技术与装备”(课题项目号:2023YFC2907203)。

摘　　要：为了实现电信号反馈的充填料浆质量浓度稳定调控,开展基于搅拌过程电信号的充填质量浓度表征研究。设计并进行不同质量浓度的全尾砂充填料浆搅拌特性试验,采集搅拌过程扭矩、功率、电流等电信号数据,采用卡尔曼滤波方法对原始数据进行降噪预处理。试验结果显示,三种搅拌电信号随全尾砂充填料浆质量浓度的变化而呈较为明显的正相关关系,料浆质量浓度从68%增加到76%时,扭矩、功率、电流信号数值分别增大了22%、29%、20%,浓度每增加1%,三种电信号数值具有显著差异性;基于此,开展了搅拌电信号随料浆质量浓度的演化规律研究,揭示了充填料浆质量浓度与搅拌电信号的内在关系,发现了搅拌电信号在料浆临界浓度附近的突变与连续特性,进而提出了搅拌电信号与料浆质量浓度的相关模型,并进行深入分析与研究,明确了基于搅拌过程电信号的充填料浆浓度表征方法与模型及参数等内容,为实现搅拌过程电信号反馈的充填料浆质量浓度稳定调控技术奠定基础。In order to achieve stable control of filling slurry quality concentration based on electrical signal feedback,a study was conducted on the characterization of filling quality concentration based on electrical signals during the stirring process.Experiments on the mixing characteristics of full tailings filling slurry with different mass concentrations was designed and conducted,collect electrical signal data such as torque,power,current during the mixing process,and the original data was pre-treated to reduce noise using Kalman filtering method.The experimental result shows that the three types of mixing electrical signals present a significant positive correlation with the change of full tailings filling slurry mass concentration.When the slurry mass concentration increases from 68%to 76%,the values of torque,power,and current signals increase by 22%,29%,and 20%,respectively,For every 1%increasing,the values of the three electrical signals show significant differences;Based on this,a study was conducted on the evolution law of stirring electrical signals with the mass concentration of slurry,revealing the inherent relationship between the mass concentration of filler slurry and stirring electrical signals,the sudden and continuous characteristics of stirring electrical signals near the critical concentration of slurry were discovered,and a related model of stirring electrical signals and slurry mass concentration was proposed and was analyzed and studied in depth,finally,the characterization method,model,and parameters of filler slurry concentration based on stirring process electrical signals were clarified,laying the foundation for achieving stable control technology of filler slurry mass concentration through electrical signal feedback during the stirring process.

关 键 词：电信号 浓度 扭矩 演化规律 表征模型 

分 类 号：TD989[矿业工程—选矿]