Method of flushing a circulation system using first and second r

Details Method of flushing a circulation system using first and second r Method of flushing a circulation system using first and second r

1997-09-09

1999-03-16

Alexander, Lyle A.

Cleaning and liquid contact with solids

Processes

Using solid work treating agents

134 2211, 134 38, B08B 902, B08B 904

Patent

active

058824286

ABSTRACT:
This cleaning system is designed to automated and minimize or eliminate the excessive amount of manpower associated with other suction processes. It is a combination of paint recovery, and flushing methods in a automated manner. It is designed to minimize the paint lost as a result of color changing of circulation systems, as well as minimize the associated time and solvents used to in the cleaning process. This is accomplished by inserting a first pig into the circ system at the end of a desired painting cycle to push out the paint and propelling the first pig through the system using a solvent. The location of the first pig is then sensed and the first pig collected from the system. A second pig is injected into the system to separate the solvent from a new cycle of paint.

REFERENCES:
patent: 3562014 (1971-02-01), Childers et al.
patent: 4416703 (1983-11-01), Scott
patent: 5192595 (1993-03-01), Akeel et al.
patent: 5632822 (1997-05-01), Knipe, Jr. et al.

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