FLOTATOR Russian patent published in 2007 - IPC C02F1/24 B03D1/14 

FIELD: oil refining industry; food processing industry; chemical industry; devices for treatment of the industrial and household waste waters drains.

SUBSTANCE: the invention is pertaining to the flotator for treatment of the industrial and household waste waters drains, for removal of the proteins, fats, oil products, SAS, and the similar impurities. The flotator contains the rectangular in the projection body (1) with the paired parallel laminas (2), between which there are the perforated pipe ducts (3) used for supply the water-air mixture, which initial sections are connected to the means of formation of the water-air mixture, the gear (4) for removal of the foam with the foam-collection tank (5) and the fitting pipe (6) for removal of the foam, the assembly for withdrawal of the treated water with the reception pocket (7) and the gate valve (8) arranged in it, the fitting pipe (9) for removal of the of the treated water, the drainage system (10) and the pipe duct (11) for removal of the residue mixtures non-subjected to the flotation. The perforated pipe ducts (3) are arranged slant and in pairs, at that their initial sections are deepened concerning the dead-end sections. The holes in these pipe ducts (3) are arranged in one row on the lower part of their cylindrical surface with the displacement of the holes of one perforated pipe duct (3) in the pair with respect to the holes of another pipe duct by the spacing interval equal to the half of the spacing interval between the neighboring holes of the perforated pipe duct (3). The holes of the perforated pipe ducts (3) of the pair are facing each other with the angle of inclination of the holes axes to the horizontal plane of 5°÷30°. The technical result o the invention is the increased efficiency of the water purification due to the more uniform saturation of the whole volume of the treated water by the air bubbles.

EFFECT: the invention ensures the increased efficiency of the water purification due to the more uniform saturation of the whole volume of the treated water by the air bubbles.

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