METHOD AND DEVICE TO REMOVE FOAM FROM FLOTATOR Russian patent published in 2010 - IPC B03D1/14 

FIELD: process engineering.

SUBSTANCE: invention relates to sewage treatment and can be used in industrial branches that use flotation separation of materials. Proposed method comprises continuous feed of air over the entire surface of foam at the rate of 0.5-0.8 m/s and parallel to foam motion direction. At the foam discharge point air rate makes 1.5-2.5 m/s. Proposed method in realised using the device that comprises casing, foam drain chute, airflow generator and movable gate. Aforesaid casing features parallelepiped shape to cover the entire foam surface and its face, nearby foam drain chute, is provided with movable gate that can be locked and coupled, on opposite side, with appliance to produce horizontal airflow above foam surface.

EFFECT: higher efficiency of sewage treatment, simplified design, reduced power consumption.

2 cl, 1 dwg, 3 tbl, 2 ex