PROCEDURE FOR METAL-THERMAL METAL AND ALLOY MELTING Russian patent published in 2010 - IPC C21B15/02 C22C33/04 

FIELD: metallurgy.

SUBSTANCE: invention refers to metallurgy and can be used at production of metals and alloys by metal-thermal procedure, particularly, by "block" melting. The procedure consists in preparing charge, in loading charge into a container for melting and insulating it with a loose refractory layer and in initiating reaction process. Prepared massif of charge is prevented from scattering; charge with ignition mixture is loaded into the container for further melting. Also whole surface of fixed massif of charge is insulated with the loose refractory layer. On upper surface of charge massif the insulating layer has thickness of 80-150 % of charge massif height, on side surfaces - thickness of 50-100 % of width or diametre of charge massif and below the lower surface - thickness of 10-20 % of charge massif height, whereupon there is performed melting in the insulating layer.

EFFECT: simplification and reduction of cost of equipment at maintaining ecological and procedure efficiency; also, fumes and dust exhausts into atmosphere are prevented without implementation of special powder and gas collecting equipment.

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