Sprinkling slag treatment method for steelmaking furnace

摘要

PPROBLEM TO BE SOLVED: To provide a hydraulic slag processing method for a wrought steel furnace capable of preventing pollution with hydraulic power and recycling slag. PSOLUTION: Slag is sent to a hydraulic sorting device through a raw material hopper, and sorted to four groups of slag of 30 mm or more, 12-30 mm, 8-12 mm and 8 mm or less. Residual steel containing iron is separated from the slag by a magnetic selector, and the slag of 30 mm or more is crushed by a crusher. The residual steel containing iron is separated by the magnetic selector, and the left slag is sent to a grinder for grinding through a secondary raw material hopper, and thereafter, returned to the raw material hopper and processed again. A water sprinkler is provided inside the hydraulic sorting device, and the slag at 8 mm or less is eliminated by filtering sand contained in the slag by the hydraulic machine, and the water, from which sand is eliminated by filtration, is sent into a settling tank, and lime powder is settled, and the water is circulated to the sprinkler device for recycle. PCOPYRIGHT: (C)2006,JPO&NCIPI