Pneumatic lime injection system commissioned at Nucor Utah, USA

5 March 2020

NUCOR STEEL UTAH and MORE have successfully commissioned the pneumatic lime injection technology in the two electric arc furnaces located in Plymounth (UT, USA).

MORE has supplied the L-ONE lime injectors characterized by combined burner mode, high-efficiency material injection and installed into machined copper bulged blocks equipped with FLASH STOP system to avoid damages caused by back-fires.

Dedicated MOLI lime dispencers have been supplied for the pneumatic transportation of the lime from the external day-bins to each electric arc furnace. All the system is controlled by a dedicated automation system with lime injection set-points integrated into the burner profiles for a fully automated control of the injection.

Good results have been achieved in terms of stable slag management, lime savings and overall furnace performance while MORE lime injection system demonstrated high reliability.