Vertical Bar Screen

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Aquasystems International N.V. SFA enviro

Halle, Belgium

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Envirostrat screens, STO series, are installed in channels. They fulfill both fine and coarse screening functions. They can also be equipped with a fully integrated compactor for screening dewatering (STO/P series).
The effluent passes through the screen, while the waste is stopped by vertical bars spaced apart according to the desired mesh.
The screen start-up is programmed periodically, and by loss of head, measurement is caused by the accumulation of waste on the bars.
The waste is lifted by means of multiple rakes derived from two lateral chains.
LAYOUTS of Vertical Bar Screen

Motor
Sliding plate
Frame
Covers
Lateral rake and driving chains
Bars
Rake
Solid Waste outlet

FRAME
The structure of the screen is made up of two lateral frame structures fitting the required channel width. For channel installation, lateral rubber bands seal the gap between the screen and civil work. RAKESEP screens are covering configurations up to 2 meters in width and up to 15 meters in discharge height.
FILTRATION SCREEN
The screen consists of fixed bars or a Johnson profile whose space between them defines the screening mesh. This model with multiple rakes is particularly adapted for high-loaded effluent and can be used either as a fine or coarse screen (2 to 60 mm bar spacing).
MECHANISM
Rakes are fixed to lateral chains driven by toothed wheels. The precision of the upward movement of the rakes along the bar screen and then along the sliding plate guarantees a perfect scraping and raising of waste up to the point of discharge.
WASTE
The screening waste can thus be unloaded in a container. They can be also transferred to a conveyor or a transversal screw compactor integrated to the unit (Version STO/P).
MATERIALS of Vertical Bar Screen
Construction in stainless steel 304L or 316L.

SPECIFICITIES of Vertical Bar Screen