Cleaning and liquid contact with solids – Apparatus – With treating fluid purifying or separating means
Patent
1986-02-21
1988-09-13
Coe, Philip R.
Cleaning and liquid contact with solids
Apparatus
With treating fluid purifying or separating means
202170, B08B 302
Patent
active
047701978
ABSTRACT:
A method for cleaning a solvent which may contain hazardous particulate material which comprises liquid and vapor portions which are being recirculated in a closed system. Suspended particulate material is filtered out of the liquid. Dissolved particulate material is removed by distilling the liquid. The vapor is condensed and combined with the clean liquid. A portion of the vapor is recirculated. The solvent may be cleaned and recirculated continuously.
An apparatus for cleaning a solvent which comprises liquid and vapor portions which are being recirculated in a closed system. The apparatus comprises a cleaning chamber in which solvent may be used to remove hazardous particulate material from an article. Filters remove suspended particulate material from the liquid. A still removes dissolved particulate material. The clean liquid solvent is conveyed by a conduit to a holding chamber. Means are provided for removing the solvent vapor from the chamber and returning a portion of it to the holding chamber and recirculating a portion of it to the cleaning chamber. The apparatus operates continuously as the article is being cleaned.
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Archer Gary L.
Briggs William E.
Prisco, Jr. Anthony J.
Sewter Bruce R.
Coe Philip R.
Stinson Frankie L.
Westinghouse Electric Corp.
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