氧化铝生产晶种过滤过程中减少碱蒸汽含量的研究及应用  

Study and Application on Reduction of Alkali Vapor Content in Seed Crystal Filtration Process of Alumina Production

作　　者：韦文涛 张云峰 向学立 WEI Wen-tao;ZHANG Yun-feng;XIANG Xue-li(Yunnan Wenshan Aluminum Co.,Ltd.,Wenshan,Yunnan 663000,China)

机构地区：[1]云南文山铝业有限公司,云南文山663000

出　　处：《云南冶金》2022年第3期186-190,共5页Yunnan Metallurgy

摘　　要：氧化铝生产晶种过滤工序中立盘过滤机的飘碱严重,污染环境并增加了员工碱烧伤风险。分析了晶种过滤碱蒸汽的形成过程及原因,提出了利用轴流风机代替空压机,并降低立盘过滤机风压、转速及蒸汽引流外排等措施。通过技术改造,消除了现场安全隐患,改善了作业环境,降低了晶种过滤系统的冲淡。全年共计节约成本193.8万元。In seed crystal procedure of alumina production process,the vertical disk filter has serious drifting alkali,it can pollute the environment and increase the risk of alkali burns for employees.The formation process and reasons of seed crystal filter alkali vapor was analyzed,therefore it is proposed that axial fans were used to instead of air compressor,the wind pressure,rotating speed of vertical disk filter can be reduced,vapor can be discharged and so on.The developed technical innovation can eliminate the on-site potential safety hazard,improve the operation environment,reduce the alkali vapor concentration of seed crystal filtration system.It can save 1.938 million yuan per year.

关 键 词：氧化铝 晶种过滤 温度 碱蒸汽 反吹风压力 精液 乏汽 离心通风机 

分 类 号：TD451[矿业工程—矿山机电]