天津工业大学学报2017，Vol.36Issue(3)：33-38,6.DOI:10.3969/j.issn.1671-024x.2017.03.007
胶体化泥浆化学固液的分离
Separation for chemical solid-liquid of drilling slurry
摘要
Abstract
To solve difficult separation problem of the solid-liquid two-phase waste drilling mud, the slurry system was converted to colloid from fluid with the colloidization of high polymer coagulants with high viscosity. The solid-liquid separation of the waste slurry was realized by the process of chemical colloidal gel breaking, coagulation function, acidification gelout and inorganic coagulation. In addition, the surface morphology of slurry cake was investigated by using Field emission scanning electron microscope (FE-SEM). The results indicate that mud separation effect is decided on the type of flocculants, gel breaker and coagulant aid. The solid content of mud cake increases from 44.5% to 80.5% when A-PA, H20 and Ca(OH)2 are employed as the flocculants, gel breaker and coagulant added with the dosage of 0.375 g, 0.5 g and 15.0 g respectively.关键词
泥浆/固液分离/胶体/破胶/助凝Key words
slurry/solid-liquid separation/colloid/gel breaking/coagulation分类
化学化工引用本文复制引用
郑帼,王彩林,孙玉..胶体化泥浆化学固液的分离[J].天津工业大学学报,2017,36(3):33-38,6.基金项目
中国石油科研项目(DGYT20167S374) （DGYT20167S374）
