RU94031151A - Direct current electrical furnace for electrical slag reduction of metals - Google Patents

Abstract

FIELD: electric metallurgy, ferroalloys production in particular and also slags and dewatered and toxic slimes wasteless processing. SUBSTANCE: reduction of metals in furnace is exercised from mineral and organomineral raw material. Direct current electrical furnace has body with lid provided with hatches for smoke gasses removal, charge feeding and electrodes introduction. Operational space of furnace has form of ellipsis with intercenters space equal to 3 - 5 diameters of electrodes. In the case vertical exes of electrodes are passing through the centers. Furnace hearth is inclined at angle of 15 - 45 deg to horizons in direction of cathode and taphole for metal discharge. EFFECT: significantly increased serve life of electrical furnaces.

Claims (1)

In the furnace, metals are obtained by reducing them from mineral and organomineral raw materials. The invention relates to the field of electrometallurgy, in particular to the production of ferroalloys. It is also intended for waste-free processing of slag and dehydrated sludge, including toxic. The invention significantly increases the service life of electric furnaces. A direct current electric furnace consists of a housing with a cover equipped with hatches for the removal of flue gases, feeding the charge and introducing electrodes. The working space of the furnace is made in the form of an ellipse with an intercenter distance equal to 3-5 diameters of the electrodes, with the vertical axis of the electrodes passing through the centers. The hearth of the furnace is inclined at an angle of 15-45 ° to the horizons towards the cathode and the notch to drain the metal.