The application of sponge iron briquette machine in steel industry

The application of sponge iron briquette machine in steel industry

DRI (sponge iron) is made from high grade iron ore in a low temperature environment by reduction reaction. Stable composition, little impurity, low carbon content, sponge iron is mainly used as raw material in electric furnace for steel making. Also, it could be used as coolant in converter or metallurgy powder after twice reduction.

In recently year, steel and iron products are treading towards smaller in size, upgrading in function, so non-metallic materials and non-ferrous metal content increases. This results in the decreasing quality of waste steel. As waste steel comes from different materials, chemical composition varies greatly and is hard to control. This brings difficulty for electric furnace steel making. If certain ratio sponge iron is  mixed (30%-50%) with waste steel as diluent, it will not only increase the uniformity of steel, but also improve the physical property. So, DRI is not just substitute of waste steel, also raw materials for making high quality steel.

As a test on 3TPH electric furnace shows, if sponge iron is mixed, per ton of furnace burden saves electricity 27%, time 28%, oxygen consumption 22%, physical property improves significantly. This increases capacity of electric furnace and reduces energy consumption and cost.

However, sponge iron need to be fed into furnace in briquettes, in either ball shape or cylinder shape. Sponge iron briquette machine is what we supply. If you are interested, please visit my homepage on Linkedin.

For more info, please visit briquetting press.

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