| 摘要 |
furnace plants for melting-down and holding of melt of metal, in particular, aluminium. SUBSTANCE: the furnace plant has at least one furnace tank with lateral walls and bottom, and at least one heat source for heating of the molten metal and/or hard metal placed in the tank by radiation and convection. Installed in the tank wall or near it is at least one lateral two-phase or multi-phase electromagnetic agitator for field application to molten metal through this wall. The lateral agitator has at least two phase windings located around an iron care, whose vertical extent H essentially overlaps zone Dmax between the bottom and upper surface of molten metal at a maximum depth of the bath used in the furnace tank. The lateral agitator is made with pole pitch tau twice exceeding the distance from the iron care to molten metal, i.e. tau > 2dw. EFFECT: reduced loss of metal and enhanced power utilization factor and furnace capacitance. 8 cl, 3 dwg
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