NOUFERROUS METALLURGICAL EQUIPMENT

With the development of the non-ferrous metal industry, the treatment of nickel-containing solid waste has become an important issue for resource recycling and environmental protection. Traditional pyrometallurgical processes for treating nickel-containing solid waste suffer from low efficiency and poor metal recovery rates. The study aims to develop a novel composite smelting furnace for the efficient treatment of secondary resources such as nickel-containing solid waste and nickel-bearing slag, to achieve stable production of nickel matte, and to enhance the recovery rates of valuable metals such as Ni, Cu, and Co. Through optimization of process control, research on slag composition, and adjustment of slag discharge operations, the smelting process has been tested and optimized. The project was completed and put into production in February 2025. After a series of trial production adjustments, a mature and complete process control technology system and operational model have been established, achieving an advanced indicator of reducing the nickel content in slag to approximately 025% on average. The application of the novel composite smelting furnace has significantly improved the treatment efficiency of nickel-containing solid waste, realized efficient recovery of valuable metals, and promoted the innovation and upgrading of technologies for processing nickel secondary resources.