To provide an industrial waste treatment plant in which industrial wastes W1, W2 containing metals is introduced into and melted in a rotary kiln type melting furnace 2 and molten metals M can be recovered separately from slag S.
The plant comprises the rotary kiln type melting furnace 2 in which the industrial wastes W1, W2 is melted, water granulation means 4 for water granulating a fluid F produced in the melting furnace 2 comprising molten metals M and molten slag S, and a charging mechanism 1 for introducing the industrial wastes W1, W2 and flux into the melting furnace 2, wherein the molten metals M are separated from the molten slag S in the melting furnace 2 due to the specific gravity difference between them by introducing the flux into the melting furnace 2 so as to increase the fluidity of the molten slag S. The water granulation means 4 comprises a water tank 41 in which the fluid F discharged from the melting furnace 2 is water granulated. The molten metals M and the molten slag S separated from each other flow down out of the melting furnace 2 into the water tank 41 and water granulated therein. Thus, metal cakes and slag cakes are recovered separately from each other.
COPYRIGHT: (C)2004,JPO
Tatsuya Akizen
Fumihiko Ogino
Noboru Iwata
Yoshitaka Ishikawa
Sumitomo Heavy Industries Ltd.
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