Abstract:A domestic copper smelter adopts copper concentrate transportation-disk granulation-Ausmelt furnace melting poolintelligent NUMERICAL control converter blowing-rotary anode furnace refining-PC electrolysis process. The flue gas from austenitic smelting enters the electric dust collector after cooling, producing steam and collecting dust from waste heat boiler. The furnace soot adhesive serious internal electric field by electric dust collector, insulation box porcelain shaft fracture and have lower secondary voltage or electric field to send electricity, dust collecting, an analysis of the causes for this, and put forward the optimization for cathode insulating box to improve and increase the hot air purging device, resolves the problem of electrical dust collector to send electricity, improve the operation efficiency of the furnace. At the same time, it also provides guidance for similar problems in copper smelting electric dust collection.