第45卷第5期 2018年10月
矿业安全与环保
MINING SAFETY & ENVIRONMENTAL PROTECTION
谢效，易像，王杰，等.遥度对煤尘浓度测量精度的影响实验及其补偿措施[J].矿业安全与环保，2018,45(5);69-73.
文章编号：10084495(2018)05006905 技术经验
Vol. 45 No. 5 Oct. 2018
湿度对煤尘浓度测量精度的影响实验及其补偿措施
谢双，易俊2，王杰3，王文和
（1.重庆科技学院安全工程学院，重庆401331；2.重庆工程职业技术学院，重庆402260；
3.中煤科工集团重庆研究院有限公司，重庆400037）
摘要：为了探索环境湿度对煤尘浓度测量精度的影响，在分析激光散射法、β射线法和电荷感应法
这3种主要测尘方法原理的基础上，在不同混度条件下开展了煤尘浓度测量及其误差的实验分析，并指出了各自的补偿方法。煤尘浓度测量实验结果表明：当相对湿度为50%时，3种测尘方法的误差均小于7%；当相对湿度为60%~70%时，激光散射法的误差大于20%，β射线法和电荷感应法的最大误差都约为15%；当相对湿度大于70%时,3种测尘方法的误差都较大。通过对激光散射法和电荷感应法增加湿度检测系统，激光傲射法根据湿度调整质量浓度转换系数，电荷感应法根据湿度调整算法的系数，β射线法则采用动态加热的补偿方法，以消除湿度的影响
关键词：煤尘浓度；激光傲射法；β射线法；电荷感应法；相对湿度；测量误差；补偿修正
中图分类号：TD714+.3
文献标志码：B
Study on the Influence of Humidity on MeasurementPrecision of
Coal Dust Concentration and Compensation Method
XIE Shuang", YI Jun".2, WANG Jie', WANG Wenhe
( I. College of Sofety Engineering, Chongqing Institale of Science & Technology, Chongqing 401331 , China ;
2. Chongging Vocational Institute of Engineering , Chongqing 402260, China; 3. CCTEG Chongqing Research Institute, Chongqing 400037, China)
Abstract: In order to explore the influence of environmental humidity on the measurement accuracy of coal dust concentration, on the basis of analyzing the principle of the three main methods of dust measurement: laser scaltering method, βray method and charge sensing method, the measurement of coal dust concentration and its error were carried out under different humidity conditions, and their respective compensation methods were put forward. The experimental results of coal dust concentration measurement show that when the relative humidity is 50% , the error of this three methods is less than 7% ;when relative humidity is from 60% to 70% , the eror of laser scattering method is more than 20% , the maximum error of βray method and charge sensing method is about 15% ;when the relative humidity is greater than 70% , the eror of the three methods is large. To eliminate the influence of humidity, the laser scattering method and the charge sensing method are added the humidity detection system, the laser scattering method adjusts the mass concentration conversion coefficient according to the humidity, the charge sensing method adjusts the coefficients of the algorithm according to the humidity, and the βray method uses the dynamic heating compensation method.
Keywords : coal dust concentration; laser seattering method; β ray method; charge sensing method; relative humidity : measurement error; compensation corection
收稿日期：2017-09-18;2018-09-03修订
基金项目：国家重点研发计划项目（2017YFC0805200）；重庆科技学院研究生科技创新计划项目（YKJCX1720701）
作者简介：谢双(1991一)，男，重庆西阳人，硕士，主要从事粉尘职业危害方面的研究工作。Email;xszlen@163.com 万方数据
我国矿山职业危害形势严峻，煤矿粉尘危害尤为突出。截至2014年底，全国尘肺病患者累计达 77.71万例，其中煤矿工人尘肺病患者数量占50% 以上。2014年新增尘肺病患者26873例，其中煤矿工人尘肺病患者数量占51.5%1]。矿山尘肺病高
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