The device adopts fluosolids roasting, heat energy recovery through middle-pressure waste-heat boiler, acid purification, (3+2) transfer, and twice absorption process.

• 本装置采用沸腾焙烧、中压余热锅炉回收高温位热能、酸洗净化、（3+2）两次转化、两次吸收的工艺流程。