Research progress of zinc-containing electric furnace dust recovery technology

• 1、SHAANXI METALLURGICAL DESIGN&RESEARCH INSTITUTE CO.,LTD.

Abstract：Under the background of Carbon Peaking and Carbon neutrality Goals, the research progress of improving the recycling and treatment technology of zinc-containing electric arc furnace dust is the development trend of China\'s iron and steel enterprises. The electric arc furnace will produce about 15~20kg of fine electric arc furnace dust for every ton of steel produced, and it is significant to reasonably dispose of electric furnace dust. At present, the disposal process of electric furnace dust, landfill disposal method will waste recyclable resources, sintering recycling affects the blast furnace downstream. Wet treatment process in the leaching solution is easy to cause secondary pollution, and equipment corrosion is serious. Fire treatment process requires a large number of reductants and more than 1000 ℃ high-temperature conditions, while the pollution emissions are more serious. New processes such as the microwave method have high energy utilization efficiency and are low-carbon and environmentally friendly, but the technology is still immature. Combining the advantages of new processes and traditional processes, solving the problems of high energy consumption and pollution of traditional processes through new processes, and developing low-cost, energy-efficient, clean and environmentally friendly treatment processes is the main development direction of future research.

Keywords： ferrous metallurgy EAFD Treatment process Energy saving and environmental protection