高海拔地区大型硫精砂制酸装置设计及运行情况简介

摘要

The process and equipment of a 400 kt/a sulphuric acid plant based on pyrite in high-altitude region, Qinghai, are described. The operation situation and problems are analyzed. High-and low-level heat were recovered by waste heat boiler to produce steam for power generation. Cu, Co and Zn in slag were recycled. Produced iron concentrate was sold to steel plant.%对高海拔地区400kt／a硫酸生产装置工艺进行了比选，介绍青海硫精砂焙烧制酸系统工艺流程和设备，对试生产情况和存在的问题进行了详细分析；装置回收高低温位废热，通过废热锅炉产出蒸汽进行发电；回收烧渣中的铜、钴、锌等有价金属后产出的铁精粉可直销钢铁厂。