HEARTH ELECTRODE FOR DC ARC FURNACE Russian patent published in 2017 - IPC F27B3/10 H05B7/06 

FIELD: electricity.

SUBSTANCE: invention relates to electrothermics, in particular can be used as anode supply to DC arc furnaces. Hearth electrode includes steel head coupled with a copper case of conical shape, expanded to the bottom, arranged on its side surface fastening flange, contact disk and the cooling unit with water supply and is equipped with a thermocouple arranged in copper body near the joint with steel head, thus, the cooling unit is made in the form of pressure chamber filled with water under pressure and drain chamber with removal of water, and a copper case in the lower part is made with copper sole of cylindrical shape, in the lower end part of which by drilling cylindrical cells are formed in which there are inserted connected with pressure chamber nozzles with a gap with walls of cells to withdraw water to the discharge chamber.

EFFECT: invention allows improvement of cooling conditions of hearth electrode and increase its resistance.

1 cl, 6 dwg