Blast furnace smelting technology for lead-enriched slags

A blast furnace smelting technique for lead-enriched slags includes crushing the compact lead-enriched slags to become slag blocks less than 100 mm or casting blocks (15-200 mm), sequentially adding coke, returned slags, lead-enriched slag blocks and flux to blast furnace, and controlling the height of material column to 4-6.5 m+/-0.5m. Its advantages are simple apparatus, convenient operation, long service life of furnace, low cost and low environmental pollution.