钙镁结晶对湿法炼锌生产系统的影响研究  

The effect of calcium and magnesium crystal on zinc hydrometallurgy production system

作　　者：孙红燕[1,2] 森维 孔馨[1,2] 刘贵阳[1,2] 

机构地区：[1]红河学院理学院,云南蒙自661199 [2]云南省高校地方特色资源利用与新材料实验室,云南蒙自661199 [3]云南锡业集团(控股)有限责任公司,云南个旧661000

出　　处：《轻金属》2016年第1期42-45,共4页Light Metals

基　　金：云南省教育厅科学研究基金一般项目(2013Y068);红河学院"化学"云南省硕士点建设学科开放基金重点项目(HXZ1401);红河学院校级中青年学术骨干培养项目(2015GG0204)

摘　　要：湿法炼锌生产系统中的杂质钙、镁主要来源于原料和添加的辅助物料,这些杂质在湿法炼锌系统富集积累,当达到饱和后会以钙镁盐的形式结晶析出,给炼锌系统带来严重影响。本文对锌冶炼生产系统的钙镁结晶情况进行了详细分析。当钙、镁离子浓度达到饱和后将会析出并形成致密的结晶层附着在管道、溜槽、贮槽内壁,以及压滤机水嘴和滤布毛细孔、冷却塔、阳极板、电解槽,这对生产造成极大危害,增加劳动强度,降低电解电流效率。因此,急需探索研究一种低成本除钙镁的新方法,降低钙镁结晶对生产系统产生的负面影响,降低生产成本。The impurities of calcium and magnesium in zinc hydrometallurgy production system are mainly from raw material and auxiliary materials. It will be enriched and accumulated in zinc hydrometallurgy system. The calcium and magnesium crystal will be precipitated when they are saturated and have a serious impact on zinc metallurgy. In this paper the calcium and magnesium crystallization conditions in zinc hydrometallurgy production system are ana- lyzed in detail. When the concentrations of calcium and magnesium reach saturation the dense crystal layer will be formed and they will attach to the inner walls of pipeline, chute and tank, water nozzle of filter press, capillary pores of filter cloth, cooling tower, anode plate and electrolytic cell. It will cause great harm to production, increase labor intensity and reduce current efficiency of electrolysis. Therefore, a new method of low cost removal calcium and magnesium needs to be explored to reduce the harmful effect of calcium and magnesium crystal on production system and cut the production cost.

关 键 词：钙 镁 结晶 锌 工业生产 

分 类 号：TF813[冶金工程—有色金属冶金]