Injection coal

General product description

Injection carbon is crushed, screened, and dried anthracite, used as a slag foaming agent in the EAF to increase productivity, lower operating costs, and better the quality of produced steel.

• Usage in a ladle during the tapping from steel-making unit (convector, arc, and steelmaking furnaces). Carbon material of 0−10 fractions sits in a ladle during the tapping of the unit.

• In ladle of ladle metallurgy facilities of LF type. Carburizing of steel is realized by coal injection (fraction 0−3mm) of steel liquid-alloy in inert gas current with the help of immersion lance. The set of bulk material (fraction 0−10 mm) onto the bared metal surface in the bottom tuyere operating zone for argon blow is possible.

• Carbon material powder (fraction 0−3 mm) is injected into the liquid bath of arc steelmaking furnace simultaneously with the delivery of oxygen. Sponging is realized through CO bubble floating due to air oxidation of metal carbon. The usage of powder is usually 5−10 kg/t of steel. The arc is constantly closed by slag during the work with foamed slag that allows to exclude the negative influence of the arc on water cool element of the furnace and give ultimate output and thermal effectiveness. It increases the productivity of arc steelmaking furnace and reduces the energy consumption for steelmaking.

Technical specification