Recirculating paint booth and thermal oxidizer

Details Recirculating paint booth and thermal oxidizer Recirculating paint booth and thermal oxidizer

1991-09-23

1992-11-24

Beck, Shrive

Coating processes

Spraying

118663, 118326, 118DIG7, 55DIG46, B05B 1504, B05D 102

Patent

active

051659697

ABSTRACT:
A paint booth facility for painting truck cabs and attachments in which electronic robots operating electrostatic paint guns apply successive coats of paint. The object to be painted is indexed through a series of spray booths, flash-off booths and finally curing ovens all of which have a contained atmosphere. The level of volatile organic compounds (VOC) in the paint booth atmosphere is not permitted to exceed 25% of its lower explosive limit but is maintained at a level that is higher than permitted in paint booths that are occupied by humans. A portion of the recirculated paint booth atmosphere is directed to a thermal oxidizer where it is ignited autogeneously, and this portion is replaced by fresh air that has been conditioned.

REFERENCES:
patent: 3881874 (1975-05-01), Shular et al.
patent: 4266504 (1981-05-01), Roesner
patent: 4574005 (1986-03-01), Cobbs, Jr. et al.
patent: 4616594 (1986-10-01), Itho
patent: 4630567 (1986-12-01), Bambousek et al.
patent: 4714044 (1987-12-01), Kikuchi et al.
patent: 4758642 (1988-07-01), Yezrielev et al.
patent: 5066522 (1991-11-01), Cole et al.

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