ARRANGEMENT FOR CLEANING VENTILATION AIR POLLUTED WITH PAINT PARTICLES

摘要

An arrangement for cleaning ventilation air coming from a spray booth (1) for painting e.g. car bodies (2), and polluted with paint particles, comprises means (9) for contacting the ventilation air with a liquid flow for separating part of the paint particles of the ventilation air. At least one wet electrostatic precipitator (6) is provided in an enclosure (7) downstream of said means, for separating the remaining particles as well as liquid droplests contained in the ventilation air and originating from the liquid flow. The enclosure (7) is located underneath the floor (4) of the spray booth (1) and the part of the enclosure (7) which is first contacted by the ventilation air is formed as a sloping plane being poured over with liquid. The lower end of the sloping plane is connected to said means (9) forming a part of said enclosure and being poured over with liquid. The enclosure (7) further is so designed that the ventilation air is caused to be deflected through an angle of 10 DEG -170 DEG in relation to its substantially vertical direction of flow through the spray booth (1) before being caused to pass through the above-mentioned means (9).