NOUFERROUS METALLURGICAL EQUIPMENT

A project of lead electrolytic transformation and comprehensive recovery of rare, precious metals of a Hunan enterprise was put into operation in October 2019. The designed electrolysis system treats 100000t of crude lead per year, and the comprehensive recovery system adopts a 2m2 circular vertical side-blowing reduction furnace to treat 6000t/a anode slime generated from crude lead electrolysis and partially from outsourcing. This project is an extension of China ENFI s patented SSC (Side-blowing Submerged Combustion Bath Smelting) technology in the field of rare and precious metal recovery. The design and application of the 2m2 circular vertical side-blowing reduction furnace have yielded practical results of large processing capacity, low energy consumption, low cost, and environmental friendliness. This paper presents the design of the furnace and analyzes and discusses some issues in the context of its production operation.