Overspray collection apparatus for a powder spray booth

摘要

Overspray collection apparatus comprises an extraction duct (54) between two sloped floors (50, 52) with unobstructed inlet slots (88, 90) on either side thereof. The extraction duct (54) comprises two moveable panels (56, 58) pivotally mounted to the sloped floors (50, 52). Each moveable panel (56, 58) pivots about an axis that is offset from a lower portion of the moveable panel and a lower portion of the sloped floor. In another embodiment, the pivotal mount comprises an offset hinge. The overspray extraction duct (54) comprises a duct floor (60) and an air diffuser assembly (100) that extends at least partially across the duct floor. The air diffuser assembly (100) receives pressurized air and directs pressurized air into the extraction duct (54), whereby the pressurized air may be pulsed. The overspray extraction duct (54) comprises a suction hood (62) that includes moveable panels (56, 58). Optional actuators may apply a force impulse to one or more of the moveable panels (56, 58), and/or to open and close the suction hood (62) automatically.

主权项

1. An overspray collection apparatus for a spray booth, the overspray collection apparatus comprising:
a first side wall and a second side wall that extend lengthwise along a longitudinal axis, an extraction duct disposed between said first side wall and said second side wall and that extends lengthwise along said longitudinal axis, a first sloped floor and a second sloped floor, said first sloped floor extending downward and away from said first side wall and towards a first side of said extraction duct, said second sloped floor sloping downward and away from said second side wall and towards a second side of said extraction duct, said extraction duct comprising a duct floor that extends lengthwise along said longitudinal axis between said first side and said second side of said extraction duct and a suction hood that extends lengthwise at least partially over said duct floor, said suction hood comprising a first moveable panel and a second moveable panel, said first moveable panel being hinge mounted on said first sloped floor by a first hinge and said second moveable panel being hinge mounted on said second sloped floor by a second hinge, said first moveable panel and said second moveable panel being moveable between an open position and a closed position, said first moveable panel and said second moveable panel when in said closed position forming said suction hood, and said first moveable panel when in said closed position having a lower portion that extends below said first hinge and that is spaced from a lower portion of said first sloped floor and from said duct floor to form a first inlet slot of said extraction duct along said first side, and said second moveable panel when in said closed position having a lower portion that extends below said second hinge and that is spaced from a lower portion of said second sloped floor and is spaced from said duct floor to form a second inlet slot of said extraction duct along said second side.