METHOD AND DEVICE FOR CLEANING OF RIVER AND CANAL BEDS FROM SEDIMENT LOAD Russian patent published in 2011 - IPC E02B3/02 

FIELD: construction.

SUBSTANCE: method to clean river and canal beds from sediment load includes cutting and grinding of bottom sediments with a cutting toll with exposure of sediments to water, and their subsequent evacuation. At the same time a water wheel under impact of the water flow rotates the cutting tool. During rotation of the cutting tool, bottom sediments are cut, ground and circularly moved, which causes occurrence of centrifugal forces, which take sediments and water away from the grinding zone, and underpressure that sucks water through water inlet holes into a zone of active grinding of cut sediments, and their stirring-up. The discharged pulp is washed with the water flow downwards along with the flow. The device for cleaning of river and canal beds from sediments comprises a drive and a cutting tool. At the same time the rotation drive of the cutting tool is arranged in the form of the water wheel joined to the cutting tool arranged in the form of a disc. Water inlet holes are arranged in the central part of the disc. Cutting elements are installed on the disc according to configuration of working blades of the centrifugal wheel.

EFFECT: reduced power inputs for cleaning of river and canal beds from sediment load.

2 cl, 1 dwg