DEVICE FOR REMOVING SURFACE LAYER OF OIL-CONTAINING LIQUIDS Russian patent published in 2017 - IPC E02B15/04 C02F1/40 

FIELD: oil and gas industry.

SUBSTANCE: invention relates to devices for removing the surface layer of oil-containing fluids and can be used in water supply and sewage purification structures, in chemical, metal working and other industries during the purification process, cutting fluids and solutions cleaning from foreign organic impurities, and for removal of oil products from surfaces of rivers, seas, oceans. The device comprises floating oil collecting means in the form of a sector belt conveyor consisting of endless perforated belt made of oil-resistant material mounted on three hollow air-tight drums, one of which is driving, and other ones are driven, and provided at the ends on one sprocket for driving the perforated sides of the belt and secured together with the belt by means of supports on a movable frame. The float is in the form of a hollow or air-tight vessel of rectangular cross section and placed between the hollow drums and belt branches, and attached to the movable frame and configured to swing along the perforated belt on the sides of the driving drums the relative surface layer of oil-containing fluids around the driving drum axis mounted on two supports to a fixed frame together with a drive. The device also comprises a drain system made in the form of a drain tray, which acts as a scraper for contacting with the endless belt at the installation area of the fixed frame. The float in the longitudinal section is a segment. The scraper in cross-section copies the profile of the wavy belt. The conveyor has an additional container - a float in form of air-tight hollow drum configured to swing by means of a spring and a carrier fixed to the movable frame of the conveyor. The belt perforated at the sides is wavy in the cross-section and sinusoidal on the both sides. From the upper side profile changes along the positive sinusoid, on the inner side there is an additional scraper to increase the efficiency of oil products removal, and the drums are made smooth.

EFFECT: increased removal efficiency of the surface layer of the oil-containing liquids.

6 dwg