摘要
聚氨酯材料是目前煤矿钻孔密封应用最广泛的材料之一。双液聚氨酯在用封孔泵注入钻孔前,先要在静态混合器中混合,其混合效果对于聚氨酯的封孔质量来说非常重要。利用数学方法建立了基于混合不均匀度和样本方差的混合效果评价指标,在前人研究的基础上,设计了一种适合聚氨酯封孔材料混合的静态混合器。同时运用Fluent数值模拟软件,考察聚氨酯在混合器内的混合效果,进而对静态混合器的结构参数进行优化。
Polyurethane is one of the most widely used material in borehole sealing. The two - component polyurethane must be mixed first in the static mixer before pumping into the drill hole. There. is no doubt that the mixing quality of polyurethane is very important to the sealing quality of various drillings. A mixing effect evaluation of uneven degree and sample variance through the mathematical meth- ods was established. Based on the previous studies, this paper designed a kind of special static mixer for mixing polyurethane, and car- ried on the optimization of the static mixer＇s structure by investigating the mixing effect of polyurethane through Fluent numerical simula- tion software.
出处
《煤矿安全》
CAS
北大核心
2012年第8期53-56,共4页
Safety in Coal Mines
基金
国家重点基础研究发展计划(973计划)资助项目(2011CB201205)
国家自然科学基金资助项目(51074161)
煤炭资源与安全开采国家重点实验室自主研究课题资金资助项目(SKLCRSM08X03)
关键词
聚氨酯
钻孔密封
静态混合器
混合效果
polyurethane
borehole sealing
static mixer
mixing effect
