B - Operations – Transporting – 01 – D
Patent
B - Operations, Transporting
01
D
165/3
B01D 53/18 (2006.01) B01D 53/14 (2006.01) B05B 15/12 (2006.01)
Patent
CA 1204659
SHW-126 -45- PROCESS AND SYSTEM FOR ELIMINATION OF PAINT SOLVENT VAPORS Abstract A system and process is disclosed for eliminating paint solvents released during paint spraying operations into the circulated air including a liquid spray solvent stripper comprising a multi- stage absorber unit through which the exhaust air is passed, and a heating and cooling arrangement for re- generating the solvent absorber liquid. A heat ex- changer recovering heat from an incinerator or oven exhaust vaporizes the solvent and the solvent is recovered by being passed over cooling coils in a condensing chamber. The exhaust air is treated with a water circulation system to remove paint solids, a proportion of the solvent vapors passing into solu- tion with the treatment water. A solvent stripper is provided consisting of an arrangement for applying a vacuum to the water circulated from a paint solid removal unit, causing the solvent to be vaporized out of solution, with the vapors condensed by being passed over cooling coils in a condensing chamber. the air and water stripper condensing chambers are purged by a vacuum pump directing the uncondensed solvent vapors and non-condensables into the in- cinerator.
405116
Bloomer Ivan
Bradshaw Norman F.
Haden Schweitzer Corporation
Smart & Biggar
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