Method for preventing KR stirring and desulphurizing slag tank from being adhered

• Main Authors: JIANG XINPING, DAI DAKUI, ZHANG JIABIN, WANG HONGLIN, MA HUI, CHEN YUEJUN, DUAN JIANYONG, WANG WEI, YU HAIMING, LI MINGXING, WANG JIAN, LI DONG, WANG RUILI, LIU YONG
• Format: Patent
• Language: English
• Published: 22.04.2015
• Subjects: CHEMISTRY; METALLURGY; METALLURGY OF IRON; PROCESSING OF PIG-IRON, e.g. REFINING, MANUFACTURE OFWROUGHT-IRON OR STEEL; TREATMENT IN MOLTEN STATE OF FERROUS ALLOYS

The invention discloses a method for preventing a KR stirring and desulphurizing slag tank from being adhered. The method disclosed by the invention comprises the following steps of (1), before using the slag tank, adding coke powder containing 10Kg/T of steel slag and drying blast-furnace granulated slag containing 40Kg/T of steel slag at the bottom of the slag tank, controlling the granularity of the blast-furnace granulated slag to be below 3 mm, lifting the tank on a converter steel slag vehicle, driving the steel slag vehicle to a slag discharging point to receive slag; and (2), after receiving slag, driving the steel slag vehicle outside a slag field to pour out liquid steel slag in the steel slag tank, and then, filling desulphurizing slag in the steel slag tank adhered with a slag film on the inner wall. The film has ultrahigh refractoriness and has the separation effect, and thus, adhesion of the steel slag tank due to the fact that iron liquid in the desulphurizing slag is directly contacted with the steel slag tank is prevented.