System for vapor precipitation and recovery in a continuous coat

Details System for vapor precipitation and recovery in a continuous coat System for vapor precipitation and recovery in a continuous coat

1982-02-05

1983-11-22

Lacey, David L.

Coating apparatus

With means to apply electrical and/or radiant energy to work...

With electromagnetic and/or electrostatic removal of...

55238, 55241, 55257PV, 55DIG46, 118326, 118DIG7, 427424, 261111, B05D 102, B01D 4706

Patent

active

044161930

ABSTRACT:
A system for precipitating vapors from a continuous coater and retrieving suspended matter therefrom. The entrance and exit passages communicating with a spray coating booth are vented to a scrubbing chamber where a precipitant spray drives the vapors through a precipitant baffle. Suspended matter in the vapor is thus precipitated and drained into a recovery tank. The scrubbed vapors are then exhausted up a stack. In one embodiment of the invention, the vapors are vented through openings in the top of the entrance and exit passages, in which embodiment there is also provided an input chamber for receiving the vapors and transferring the same to the scrubbing chamber. In a second embodiment, the vapors are vented through openings in the side walls of the entrance and exit passages, in which case they are vented directly to the scrubbing chamber. In both embodiments, the precipitant spray is directly against the precipitant baffle resulting in the precipitation of large particles, such that there is no requirement for the provision of a plenum chamber or settling area. Additionally, the precipitation baffle is kept clean by the constant spray.

REFERENCES:
patent: 1966280 (1934-07-01), Bingman
patent: 2337983 (1943-12-01), Fisher
patent: 3237381 (1966-03-01), Hvostoff et al.
patent: 3382845 (1968-05-01), Jester
patent: 3608274 (1971-09-01), Stingelin et al.
patent: 3966438 (1976-06-01), Nicholson
patent: 4132537 (1979-01-01), Bennett
patent: 4185975 (1980-01-01), Scharf
patent: 4206159 (1980-06-01), Angelini et al.
patent: 4313742 (1982-02-01), Ostlie
patent: 4338364 (1982-07-01), Kennon et al.

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