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EnviroRak

Bar screen

Envirorak inclined screens, RKS series, are installed in channels. They fulfill both fine or coarse screening function. They can also be equipped with a fully integrated compactor for screenings dewatering (RKS/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 caused by the accumulation of waste on the bars.
The waste is lifted by means of multiple rakes drived by two lateral chains.
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Layouts
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Frame

2

Inspection cover

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Sliding plate

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Lateral rake driving chains

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Covers

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Rake

7

Solid waste oulet

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Motorisation

With screw compactor
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Frame

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Inspection cover

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Motorisations

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Rake

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Lateral rake driving chains

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Covers

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Screw compactor

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Bagging unit

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Bar screen

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Option : Bar screen with an integrated compactor

The screening waste is falling down directly into an integrated screw compactor installed transversally where it is compressed and dewatered. Screenings can also be conditionned into a continuous plastic bagging unit before beeing dumped into a container.

Specificities
  • Installation : Chanel
  • 75° inclined bar screen
  • Bar spacing from 3 to 60 mm
  • Discharge height up to 8 m
  • Screenings discharge downstream
  • Rake driving by lateral chains
  • Simple design, reliable and sturdy
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 are sealing the gap between screen and civil-work. Envirorak screens are covering configurations up to 2 meter width and up to 10 meters discharge height.

Filtration screen

The screen consists of fixed bars or Johnson profil 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 (3 to 60 mm bar spacing).

Mecanism

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 RKS/P).

Performances
Hydraulic flow rates with urban effluent (m3/h)
MESH (MM)RKS 500RKS 750RKS 1000RKS 1250RKS 1500RKS 1750
FROM 3 (OR 6 WITH OPTION) TO 60 MMFLOW RATES ARE DEPENDING OF CHANNEL WIDTH, MESH AND HYDRAULIC PROFILE (FLOW VELOCITY)
UP TO 7 500 M3/H
Material

Construction in stainless steel 304L or 316L

Dimensions
Overall dimensions in mm
MODELSDISCHARGE HEIGHT MAXITOTAL HEIGHTCHANNEL WIDTH MINISCREEN WIDTHMKS WIDTHCHANNEL HOLD LENGTH MAXI
WITH COMPACTOR
MKS 500 P8000915050037002500800
MKS 750 P8000915075062002750800
MKS 1000 P80009150100086003000800
MKS 1250 P800091501250111003250800
MKS 1500 P800091501500136003500800
MKS 1750 P800091501750161017303750800

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