FILTRATION UNIT, PAINTING UNIT AND OPERATING METHOD OF FILTER UNIT Russian patent published in 2019 - IPC B01D46/00 

FIELD: technological processes.

SUBSTANCE: group of inventions relates to gas cleaning. Filtration unit (112) for deposition of contaminants from crude contaminant-containing stream includes basic structure (116) including at least one seat (120) of filtering module (122) and at least one filtering module (122). At least one filter module (122) includes several sockets (184) for installation of several independent from each other filtering elements (182). At least one seat (120) of filtration module (122) is located on external wall (150) of basic structure (116) and/or is integrated into outer wall (150) of basic structure (116). At least one filter module (122) is configured to be mounted on at least one seat (120) of filter module (122) by abutting against outer wall (150). Second version of filtration unit (112) includes at least one socket (184) of filter element (182) and at least one replacement device (208) for automatically replacing heavily contaminated filter element (182) with less heavily contaminated filter element (182). Paint plant (100) for painting workpieces (102) includes at least one filtering unit (112). Method of separating contaminants from contaminated stream of unrefined gas by means of filter unit (112) includes supply of crude gas flow to filtering elements (182), deposition of impurities on filter elements (182), removal of filtration module (122) from and/or from seat (120) of filtering module (122), replacement of one or more filter elements in sockets (184) of heavily contaminated filter elements (182) on one or several less heavily contaminated filter elements (182), arrangement of filtration module (122) on and/or in seat (120) of filtering module. Method of operation of filter unit (112) includes activation of fire protection device (300) to prevent, limit and/or extinguish fire in filter unit (112), wherein flame propagation is effected by one or more fire protection elements (302) of fire protection device (300).

EFFECT: group of inventions makes it possible to simplify the design of filtration plants and to ensure efficient operation.

37 cl, 28 dwg