TechnologieS pour le traitement de l’eau

Stepped bar screen – BioScreen DGE

Step Screen for the screening of municipal and industrial wastewater, with self-cleaning screens and high separation capacity.

Vue 3D isométrique du dégrilleur escalier BioScreen DGE Biotrade, capot ouvert révélant les barreaux de filtration inclinés

Presentation

The BIOTRADE BioScreen DGE stair screen is ideally suited for screening municipal and industrial wastewater. The elliptical motion of its stair-shaped blades effectively lifts debris while ensuring excellent solid-liquid separation.

The BioScreen DGE is designed to deliver reliable operation, natural self-cleaning of the screen bars, and simplified maintenance. It offers a high-performance solution for both new installations and renovation projects.

Models

BIOTRADE offers several models of BioScreen DGE step screens, suitable for channel widths ranging from 300 to 2,000 mm, depending on the configuration. Available bar spacings are 2, 3, or 6 mm.

The models include the DGE 800, DGE 1200, DGE 1600, DGE 2000, and DGE 2500 versions.

Composition

  • 1 stainless steel frame (304L or 316L).
  • 1 modular stainless steel screen (304L or 316L), consisting of bars spaced according to the desired clearance.
  • High-efficiency geared motor.
  • Removable covers.
  • Elliptical-motion screening system.
  • Anti-jamming device.

Technical Specifications

  • Available bar spacing: 2, 3, or 6 mm.
  • Suitable channel width: 300 to 2000 mm, depending on the model.
  • Inclination: 45° to 60°.
  • Robust frame in 304L or 316L stainless steel.
  • Self-cleaning screens.
  • Easy maintenance thanks to the pivoting design of the entire unit.

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Advantages

  • Can be installed without major modification of the existing channel.
  • High separation capacity.
  • Self-cleaning screens.
  • High screening capacity.
  • Simple maintenance thanks to the pivoting design of the entire unit.
  • Robust stainless steel frame.
  • Anti-blocking device.

Options

  • VC conveying and compacting screw, length from 1 to 4 m, dry solids content from 20 to 30%.
  • VCL screenings washing and compacting screw, dry solids content greater than 50%.
  • Electrical control and automation panel.
  • Electronic torque limiter.
  • Frost protection by heating resistors.
  • Level sensor for loaded operation.
  • Lifting davit equipped with a winch for maintenance.
  • Warning light column for fault indication.
  • Safety kit with sensor on movable doors.

Which channel widths are compatible?

Compatible channel widths range from 300 mm to 1,900 mm, depending on the model. The BioScreen DGE 800 starts at 300 mm, while the DGE 2500 can equip channels up to 1,900 mm.

Which screening gap should be selected?

Three standard screening gaps are available: 2 mm for fine screening, 3 mm for standard municipal applications and 6 mm for coarser or industrial screening.

Is the BioScreen DGE self-cleaning?

Yes, the elliptical movement of the step-shaped blades continuously lifts the waste, without manual cleaning during operation.

Is there an anti-blocking device?

Yes, an anti-blocking device is integrated as standard on all models.

How is maintenance carried out?

The entire unit pivots to provide full access to the blades, greatly simplifying maintenance operations.