Method of cleaning drums

Details Method of cleaning drums Method of cleaning drums

1990-10-25

1992-09-22

Morris, Theodore

Cleaning and liquid contact with solids

Processes

Including regeneration, purification, recovery or separation...

134 21, 134 24, 134 26, 134 32, 134 36, B08B 104, B08B 302, B08B 306

Patent

active

051493799

ABSTRACT:
The present invention relates to a method of cleaning the outer circumferential surface of a drum by spraying a cleaning fluid thereon and a device for cleaning drums. The cleaning fluid is circulated and is cleaned with a filter during circulation. The drum is cleaned with a cleaning fluid passed through a primary filter having a porous structure at high pressure, after which the drum is cleaned with a cleaning fluid passed through a finishing filter having a fine porous structure. A device for cleaning drums switches a circulating passage for cleaning fluid so that the cleaning fluid can pass through the primary filter at high pressure to spray on the outer circumferential surface of the drum. Also, the device allows the cleaning fluid to pass through the finishing filter at low pressure to spray on the outer circumferential surface.

REFERENCES:
patent: 4196018 (1980-04-01), Inoko et al.
patent: 4824487 (1989-04-01), Heffernan
Patent Abstracts of Japan, vol. 7, No. 118 (C-167) 21 May 1983, & JP-A-58 037173 (Ricoh K.K.) 4 Mar. 1983.
Patent Abstracts of Japan, vol. 13, No. 384 (C-629) (3732) 24 Aug. 1989, & JP-A-1 132788 (Mita Ind., Co., Ltd.) 25 May 1989.
Patent Abstracts of Japan, vol. 13, No. 375 (P-921) (3723) 21 Aug. 1989, & JP-A-1 130159 (Konica Corp.) 23 May 1989.
Patent Abstracts of Japan, vol. 10, No. 354 (P-521) (2410) 28 Nov. 1986, & JP-A-61 151660 (Konishiroku Photo Ind., Co., Ltd.) 10 Jul. 1986.

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