ROBOTS USED IN AUXILIARY OPERATIONS OF ELECTRIC ARC STEEL FURNACES

The paper presents some building schemas of manipulator-robots used in auxiliary operations of electric arc furnaces that are found insteel works. The technology of making steel in electric arc furnaces requires thatthe liquid steel outlet is filledfollowing theprimary elaboration. An "EBT SAND" type manipulator is used to fill the steel outlet, the kinematic scheme of which corresponds toSCARA robots. To unlock the steel outlet, an "EBT STAP" type manipulator is used, which is equipped with an oxygen lance to open the tap-hole. To clean the furnace outlet following the discharge, an "EBT STROP" type manipulator is used to allow the correct reconditioning of the tap-hole. It consists ofan electrically driven swing arm and a hydraulic lift that cleansthe EBT tap-hole.