溶盐工艺改造和盐水质量的提高

Modification of salt dissolving process and improvement of brine quality

分析了金川有色金属公司化工厂盐水精制过程中存在的工艺问题 :常出现盐水浓度过于饱和 ;砂滤器没有精盐水返洗工序 ;配水池中过碱量不稳定等。经过相应的技术改造后 ,ρ(Ca2 + +Mg2 + )由原来的 9.35mg/L降低到 3.6 1mg/L ,确保金属阳极隔膜电解槽安全经济运行。

Problems exsiting in brine refinement process in Chemical Plant of Jinchuan Non-ferrous Metal Corporation were analyzed,which involved that brine was often in condition of supersaturation,there wasnt procedure of back purging sand filter by refined brine,and the amount of excess alkali was unstable.After modifying process,the total contents of Ca 2+ and Mg 2+ in refined brine were reduced from 9.35 mg/L to 3.61 mg/L,safe and economical running of diaphragm cell with metal anodes was ensured.