Screening device for straining debris from a water course comprises a rotating screen in a tank with a grille in communication with the water course, and extractors positioned to return water to the water course

摘要

#CMT# #/CMT# Screening device comprises a rotating screen (10) in a tank (30) comprising solid walls (36, 40, 42) and an open wall (38) with a grille (50) in communication with an upstream water course, and extractors (60) positioned to return water passing through the screen to the water course. #CMT#USE : #/CMT# Screening device for straining debris from a water course, e.g. river or canal. #CMT#ADVANTAGE : #/CMT# The device is easy to install at any desired location without the need for civil engineering work. #CMT#DESCRIPTION OF DRAWINGS : #/CMT# The drawing shows a screening device as above in plan view. 10 : Rotating screen 30 : Tank 36 : Solid wall 38 : Open wall 40, 42 : Solid walls 50 : Grille 60 : Extractors. #CMT#ENVIRONMENT : #/CMT# Preferred Device: The extractors are helical agitators positioned below the lowest level of the water course. The device includes a frame for supporting the screen. The extractors are mounted in openings in the solid walls. The screen is a chain or drum filter with a mesh size of a few millimeters.The filter is an inflow or outflow filter.