煤矿安全2025，Vol.56Issue(2)：75-80,6.DOI:10.13347/j.cnki.mkaq.20231715
煤粉润湿悬浮剂复配优选及性能研究
Study on compound optimization and performance of pulverized coal wetting suspension agent
摘要
Abstract
In order to effectively solve the problems of hole collapse,clamping,sticking,waterway blockage and exhaust channel blockage caused by the combination of coal powder and water to form slime in wet drilling operation,three dispersants were optim-ized and compounded with inorganic salt additives by using the methods of static sedimentation experiment,contact angle experi-ment and surface tension test experiment of coal powder,and the optimum mass fraction of each reagent was finally determined.The results showed that the optimum ratio of the composite solution was 0.6% FSJ-01+0.8% NaCl;the wetting suspension dispersion effect of the three dispersants was ranked as FSJ-01>FSJ-02>FSJ-03.When the mass fraction of FSJ-01 was 0.6%,the contact angle reached a minimum of 31.2 °,which was 61.72% lower than that of water on the surface of pulverized coal.After adding NaCl with a mass fraction of 0.8%,the surface tension of the composite solution reached a minimum of 26.3 mN/m,which was 64.75% lower than that of water and 36.17% lower than that of a single dispersant solution.关键词
湿式钻孔作业/煤粉润湿/分散剂/润湿性/悬浮性Key words
wet-type drilling operation/pulverized coal wetting/dispersant/wettability/suspensibility分类
矿山工程引用本文复制引用
罗仁俊,孙晓楠,胡胜勇,郭舒云,张博皓,白宇飞..煤粉润湿悬浮剂复配优选及性能研究[J].煤矿安全,2025,56(2):75-80,6.基金项目
"十四五"国家重点研发计划政府间重点专项资助项目(2023YFE0103400) （2023YFE0103400）
