B - Operations – Transporting – 05 – B
Patent
B - Operations, Transporting
05
B
32/70
B05B 15/12 (2006.01) B01D 45/08 (2006.01)
Patent
CA 1239532
PUMP-LESS PAINT SPRAY BOOTH ABSTRACT OF THE DISCLOSURE A wet pump-less spray painting booth is provided that more efficiently removes over spray paint particles from the air and uses substantially less make-up water than prior designs of wet pump-less booths. In a rear air cleaning section of the booth, blower-generated air flow sucks water from a lower reservoir up through ducts into an upper plenum where the air and water impact against a splash plate, creating a turbulent mix of air and water. Water from the upper plenum drains through tubes to an upper reservoir and overflows the upper reservoir along a sheet, the bottom edge of which is spaced a substantial distance from the lower reservoir, creating a water curtain. Air flow is through a user portal where the air becomes laden with overspray paint particles, through the water curtain below the sheet at a relatively low velocity to partially clean the air of paint particles, upward through the ducts, into the turbulent mix of air and water where the air is further cleaned and upward through the plenum to an exhaust. The water curtain, which is generally uniform due to the low velocity of air flow there through, and the turbulent mix of air and water at the splash plate provide sufficient air-water contact to remove over 99% of the paint particles from the air. Very little water is exhausted with the air due to the splash plate interdicting the upward path of water through the plenum and due to substantial reduction of air velocity in the plenum as a result of the plenum having a much greater cross-sectional area than the ducts.
479607
Macrae & Co.
Protectaire System Co.
LandOfFree
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