FIELD: technological processes.
SUBSTANCE: invention relates to filtration and can be used in automobile and paints and varnishes industry. Filtering plant (112) includes filtering device (114) for contaminated gas flow cleaning saturated with paint over-spraying. Filtering device (114) comprises filtering element (120), on which paint over-spraying is deposited from saturated contaminated gas flow together with filtering auxiliary material supplied into flow; receiving vessel (124) and takeup device (128) collecting at least parts from paint over-spraying and filtration auxiliary material from receiving vessel (124), preliminary treatment device (134). Preliminary treatment device (134) includes thermal processing device (140) and control device (175) and/or adjusting device (177), made with possibility to control whether fresh auxiliary filtration material was supplied into filtering device (114) or already once or repeatedly used and processed auxiliary filtration material.
EFFECT: invention allows to recover filtration auxiliary material without deterioration of gas cleaning quality, as well as to determine exact proportions of fresh and recovered auxiliary filtration material for supply into filtering device.
18 cl, 13 dwg
