Abstract: A modular solvent recovery device (30) includes an enclosure (34) mounted to a frame (32) to enclose a tank (70) having a solvent section (72) and a waste fluid section (73), a still (40) in which waste photopolymer fluid is distilled by application of heat and vacuum pressure to the waste photopolymer fluid to distill a solvent from the waste photopolymer fluid and reduce the waste photopolymer fluid to a coalescing concentrated residue, and a flash-point-increasing agent delivery system (95) to supply a flash-point-increasing agent to the concentrated residue in an amount sufficient to raise the flash point temperature of the coalescing concentrated residue to a predetermined temperature. The still has a manhole device (46) comprising a pivotally and telescopically mounted closure (47) having wheels (51) rotatably mounted thereto and tracks (52) mounted to the still to engage the wheels and raise the closure vertically above a manhole (42) of the still upon pivotal movement of the closure.

Abstract: A sealable lid assembly for a vacuum distillation apparatus has a lid pivotally and telescopically mounted to the vacuum distillation apparatus. Spaced-apart wheels are rotatably mounted to the lid. Tracks are disposed on the vacuum distillation apparatus in a position to engage the wheels and raise the lid vertically above a manhole of the vacuum distillation apparatus upon pivotal movement of the lid, which is initiated by nominal physical exertion of a single operator. Extending outwardly from and adjacent the manhole is a flange. The flange has a channel to receive a gasket. A protrusion extends outwardly from a bottom of the lid in a position to extend into the channel and sealably engage the gasket when the wheels disengage the tracts. Clamp assemblies are provided to releasably engage the lid with the flange and draw the protrusion into sealable, releasable engagement with the gasket.

Abstract: The containment cart has a floor, two side walls, and a rear wall between the side walls. Wheels are mounted to the floor, allowing the containment cart to be readily transportable and insertable into a drum cavity of a solvent recovery device. Caster wheels assist an operator in changing direction of the cart. A releasable and sealable door acts as a ramp once lowered. Further, while lowered, the door raises the front wheels to prevent the cart from undesired movement while drums are being placed on or removed from the cart. A channel is disposed along a front face of the side walls and floor of the cart to receive a gasket. The door has a mating protrusion extending outwardly from the door to extend into the channel and sealably engage the gasket while the door operably engages the front face.

Abstract: A process is disclosed for manufacturing a concentrated residue from a photopolymer fluid which includes photopolymer and photopolymer solvent. The photopolymer fluid may be derived by chemically etching a photopolymer layer of a printing plate with a solvent. The process includes distilling the photopolymer fluid to recover the solvent and concentrate the photopolymer fluid to form a concentrated photopolymer residue, and mixing a flash-point-increasing agent with the concentrated photopolymer residue in an amount sufficient to raise the flash point temperature of the concentrated photopolymer residue to a pre-selected temperature to form the concentrated residue. The flash-point-increasing agent may be mixed with the waste photopolymer fluid prior, during, or after distillation. Also, the flash-point-increasing agent includes oils, such as paraffinic and naphthenic oils and a blend thereof.

Abstract: A system for mixing bulk windshield washer liquid for both cold and warm climates utilizing a pair of mixers and means for selectively actuating these mixers. A high concentrate educator is used to mix the warm weather mixture and a high volume eductor is used to mix the cold weather mixture. A three way water valve is used to direct water to the high concentrate eductor and to the high volume eductor. A float valve is used to maintain an essentially constant level of windshield washer liquid within the system. Detergent and alcohol are drawn from their respective storage containers solely in response to fluid flow through the eductors, thereby eliminating the need for electrical pumps or metering equipment.