EBT hole filling system with grain are used to add granular magnetite and silicon in the hole of the EBT. These systems are installed over the EAF platform and thanks to the rotating translation of the screw conveyor is possible to pour material in the EBT hole when the furnace stands in a pre – stabilized position.
Usually are composed by a storage hopper equipped with weighing system, one extracting screw conveyor that has the goal to fill a second hopper with another screw conveyor. The rotating group has the function to move the second screw conveyor in a rest position out of the zone of operations of the furnace. Thanks to this camera is possible to vision the activities from the control room.
It eliminates high risks deriving from the presence of operator over furnace; reducing the quantity of material used and reducing the time of execution of the operation producing consequently an economic save.