PURPOSE: To enhance oil removing efficiency by providing a hot water jet pine to a hot washing tank on the inlet side thereof to generate the flow from the inlet part of said tank to the outlet part thereof in the surface layer in the tank and collecting the oil component floating on the surface layer in the overflow tank provided on the outlet side of the hot washing tank.
CONSTITUTION: An object to be treated is immersed in a hot washing tank 1 and hot water is injected to the object to be treated from the riser 6 provided to the outlet part of the tank 1 to wash the object to be treated with hot water. A jet pipe 5 injecting hot water to the surface layer of the hot washing tank 1 on the inlet side thereof is provided to the hot washing tank 1 to generate the flow from the inlet part of the tank to the outlet part thereof in the surface layer of the tank 1 and the oil component floating on the surface layer is collected in the overflow tank 2 provided on the outlet side of the hot washing tank 1. As a result, the contact of the once removed oil component with the object to be treated can be reduced and oil removing efficiency can be enhanced and the transfer of the oil component to the next process can be reduced.
FUKUDA KAZUHIKO
TORIYAMA FUMIO
NIHON PARKERIZING
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