LIU Qiuzua，b， HAN Zhennana， WANG Zhijiana，LIU Chunyanga，b， LIANG Qina，b， LIU Xuzea，b
（a. College of Mechanical Engineering; b. Shanxi Province Mine Fluid Control Engineering Technology Research Center, Taiyuan University of Technology, Taiyuan 030024, China）
Abstract: In view of the huge harmfulness of respirable dusts and the difficulty to wetting, the composition of wetting agents was designed based on the mechanism that wetting agents can reduce the surface tension of water spray. An optimum mixture of wetting agents was obtained by the method of sedimentation. The rationality of composition formulation is verified by measuring the surface tension of wetting agents solution. Six kinds of coal samples were chosen and each kind was made into three kinds of respirable dust with three different concentrations. The dustfall results of the mixture of wetting agents were measured by the spray dustfall experiment station. The results show that the dustfall efficiency of the mixture of wetting agents is up to 90%. The optimum mixture of wetting agents is especially suitable for workplace with high concentration of dust.
Keywords: respirable dust; wetting agent; wetting mechanism; de-dusing efficiency
中图分类号：TD714 文献标志码：A
文章编号：1008-5548（2014）02-0001-05
DOI:10.13732/j.issn.1008-5548.2014.02.001
收稿日期：2013-10-09， 修回日期：2013-10-13，在线出版时间：2014-05-04。
基金项目：国家自然科学基金联合基金项目，编号：U1261107；山西省自然科学基金基础研究计划项目，编号：2012011018-1。
第一作者简介：刘邱祖（1983—），男，博士研究生，研究方向为矿井粉尘治理。 电话：13834163513，E-mail：liuqiuzu@126.com。
通信作者简介：韩振南（1961—），男，博士，教授，研究方向为新型纳米传感器材料及故障诊断。 E-mail：zhennan_han@hotmail.com。
