The salt recovery device and the steel wire loose coil after the heat treatment due to the heat treatment equipment and

摘要

PROBLEM TO BE SOLVED: To provide an apparatus for recovering salt for safely recovering a salt sticking to a steel loose coil without polluting environment when heat-treating the steel loose coil with a molten salt bath.;SOLUTION: The apparatus 22 is used for recovering salt from a salt-containing washing liquid used for washing the steel wire loose coil after heat treatment by using a molten salt of a cooling vessel 30, and is constituted of: a heat exchanger 50 for heat-exchanging the molten salt of the cooling vessel 30 with the salt-containing washing liquid and evaporating water content of the salt-containing washing liquid; circulating passes (104-106) for circulating and supplying the molten salt of the cooling vessel 30 to the heat exchanger 50; and a supply pass 71 for supplying the salt obtained by evaporating water content at the heat exchanger 50 to the cooling vessel 30.;COPYRIGHT: (C)2008,JPO&INPIT