steel-making Foam slag inhibitor

Splashing is a common problem in the steelmaking process of the converter. The main reason for splashing is the accumulation of (FeO) in the slag and the uneven oxygen reaction, which instantly generates a large amount of CO gas to escape. Slag splashing can reduce steel production and also easily cause personal injury and equipment damage. In addition, it will also severely erode the furnace lining, causing gun sticking, burning, slag hanging at the furnace mouth and hood.

The composition design of inhibitors: fixed carbon>2.0, CaO>30, Al2O3>40, SiO2<20, MgO<5, (volatile+ash)>30; The particle size is 20-50mm spherical, which can increase the volume density of the inhibitor and achieve a reaction effect.

The main methods to reduce splashing of converter slag include:

1, By changing the gun position and oxygen supply system, but using this method is generally a delayed reaction and a remedial measure;

2, Timely change the slag composition, add foam slag inhibitor before or when the splash sign occurs, react with the slag immediately, reduce the (FeO) content, slow down the C-O reaction, and inhibit the splash phenomenon. The latter is more suitable for reducing the effect.