Apparatus for cleaning the air from a spray painting chamber

Claim 1

Apparatus for cleaning air from a spray painting chamber comprising downwardly converging bottom walls below said spray chamber terminating in a single elongated slit extending the entire length of said chamber, a lower chamber below said bottom walls sealingly surrounding said slit and in communication therewith, an air outlet from said lower chamber having means to exhaust air therefrom and to cause air having entrained paint particles therein to flow downwardly from the spray chamber through said single elongated slit, and means to direct washing liquid downwardly along said walls to avoid adherence of paint particles thereon, said washing liquid entering into the air flow in said slit, a plane guide surface mounted in said lower chamber underlying the entire length of said slit and declining laterally downwardly therefrom at a predetermined angle to the horizontal, the upper end of said surface being directly below said slit and connected to said slit by an arcuate wall portion projecting laterally in the opposite direction from said downwardly declining surface whereby said arcuate wall effects centrifugal separation of the paint and washing liquid from the air flow and said arcuate wall and surface softly deflect the flow laterally along said surface with laminar flow, and means at the bottom of said lower chamber spaced below the lower end of said guide surface to collect and discharge the liquid flowing down and discharged from the declining surface.