摘要：

用新型中小型液-固旋流分离器,使造纸黑液中的有机物、杂质、渣等固形物同碱液分离,较干净的稀碱液进入黑液蒸发器组,蒸发浓缩后回收烧碱。造纸绿液或白液和渣进入中小型新型液-固旋流分离器,快速连续运作,除去绿泥和白泥渣后成干净的澄清液,代替大型的缓慢速度重力沉降的绿液和白液澄清器、稀白液澄清器,废液经处理后达排放水标准。

关键词: 旋流分离器, 造纸污水净化, 草浆黑液

Abstract:

After organisms,impurities,residues and other solids are separated from alkaline liquid in the alkali recoveryfrom paper-making black liquid in pollution control systems,the medium-small sized liquid-solid vortex separators areused. As a result,the clean thin alkaline liquid goes into the black liquid evaporator system. After the black liquid isconcentrated by evaporation,caustic soda is recovered. The green liquid and residues in paper-making go into liquid-solidvortex separator,working rapidly and continuously. After the green sludge and white sludge are removed and becomesclean and clarified liquid,in order to replace the original big-sized green liquid and white liquid clarifier which worksslowly by gravity settling. The waste liquid pollution control has met the requirements of effluent discharge standard. Theyare highly efficient vortex separators for industrial water treatment.

Key words: vortex separator, purificat ion of paper-making effluent, straw pulp black liquid

中图分类号: 

• X703.3

• X793