摘要
为评价液体抑尘剂的抑尘性能,以焦煤为研究对象,选取市面常用的液体抑尘剂,通过表面张力、接触角、扫描电镜、抗风保水等试验,对液体抑尘剂的抑尘性能进行系统考察.结果表明:液体抑尘剂能够降低溶液表面张力和接触角;抑尘剂与水混合后的溶液对煤尘的润湿和结合能力明显提高;抑尘剂溶液能在煤尘表面形成一层坚硬的保护膜,该保护膜具有较强的抗风能力,能有效防止粉尘飞扬;工业应用适宜选择质量分数为0.75%的抑尘剂溶液,在该质量分数下,液体抑尘剂的抑尘效果较好.
In order to evaluate the dust suppression performance of liquid dust suppressor, coke coal is taken as the research object, and the commonly used liquid dust suppressor in the market is selected. The dust suppression performance of liquid dust suppressor is systematically investigated through surface tension, contact angle, scanning electron microscope, wind resistance and water retention experiments. Results show that the liquid dust suppressor can reduce the surface tension and contact angle of the solution. The wetting and binding ability of the solution mixed with water are obviously improved. Dust suppressor solution can form a hard protective film on the surface of coal dust, so that it has strong wind resistance ability, so as to effectively prevent dust flying. The dust suppressor solution with a mass fraction of 0.75% is suitable for industrial application. Under this mass fraction, the liquid dust suppressor can obtain better dust suppressor effect.
作者
王新喆
王鹏飞
江玖鸿
莫世途
WANG Xinzhe;WANG Pengfei;JIANG Jiuhong;MO Shitu(School of Resources,Environment and Safety Engineering,Hunan University of Science and Technology,Xiangtan 411201,China;Work Safety Key Lab on Prevention and Control of Gas and Roof Disaster for Southern Coal Mines,Hunan University of Science and Technology,Xiangtan 411201,China)
出处
《矿业工程研究》
2022年第3期13-19,共7页
Mineral Engineering Research
基金
国家自然科学基金资助项目(52274197)
湖南省交通科技厅资助项目(202130)。
关键词
液体抑尘剂
性能评价
表面张力
接触角
抗风性
liquid dust inhibitor
performance evaluation
surface tension
contact angle
wind resistance
