FIELD: metallurgy. SUBSTANCE: device has circular joint which consists of fixed circular part and rotating circular part and designed for supply of cooling liquid to rotating cooling system. In this case, a part of cooling liquid supplied to fixed part passes in the form of leaks through annular gap between fixed and rotating parts of joint to form liquid in said gap. Said leaks of cooling liquid are gathered and pumped out from furnace body to bypass cooling system. EFFECT: considerable reduction of hazard of dust getting into cooling system of charging device. 17 cl, 11 dwg
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