Industrial rag cleaning process

Details Industrial rag cleaning process Industrial rag cleaning process

1993-06-28

1994-05-10

Coe, Philip R.

Bleaching and dyeing; fluid treatment and chemical modification

Fluid treatment

Manipulation of liquid

8142, 34499, 68 18R, D06F 4302

Patent

active

053095871

ABSTRACT:
A cleaning process for industrial rags to remove petroleum-based solvents in an environmentally safe manner comprises a series of steps. The industrial rags are initially subjected to high speed forces in a rotary drum to physically extract liquid solvent. The high speed extraction step is conducted while preferably maintaining a temperature within the drum of below the flash point of the petroleum-based solvent. Next, the rags are tumbled while being subjected to intermittent forced blasts of cold air and hot air to vaporize solvent remaining in the rags. The vapors are routed from the drum and condensed. The extracted liquid solvent and condensed solvent vapors are both routed to a waste solvent collection line. The industrial rags are finally dried to produce clean rags suitable for reuse.

REFERENCES:
patent: 3577215 (1969-02-01), Impullitti
patent: 3600911 (1971-08-01), McLegan
patent: 3635656 (1972-01-01), Piepmeyer
patent: 3689211 (1972-09-01), Giampalmi
patent: 4045174 (1977-08-01), Fiihring
patent: 4483160 (1984-11-01), Jost
patent: 4781041 (1988-11-01), Fowler
patent: 5222267 (1993-06-01), Fierro

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