Physical pre-treatment

Screw Screens

 

 

 

Description

 

The screw screen (with or without compactor) is a machine consisting of:
  • Screen made of a punched or wedge-wire metal screen area with mesh sizes from 0.25 mm to 10 mm

  • Throughput capacity up to 1100 m³/h

  • Screen width (version for concrete channel installation) ranging from 200 mm to 800 mm

  • Conveyor to lift the captured solids out of the effluent, first de-watering by gravity and carrying them towards the output or the compacting zone (models with compactor)

  • Compactor for mechanical de-watering (volume reduction of up to 40%)


Application

 

  • Municipal waste water
  • Industrial waste water from slaughterhoses, meat processing, vegetable processing and canning factories, textile industries and others

 

Advantages

 

  • Low investment cost and low operation/maintenance costs, construction in stainless steel AISI 304 or 316, no hanger/intermediate or bottom bearings, shaftless spiral in high tensile carbon steel with bottom brushes to clean the screen, no risk of jamming or blocking even in presence of long/fibrous solids, fully enclosure for odour control, extracted solid volume reduction up to 40%, depending on the solids, possibility to discharge the removed solids in a plastic bag, single or continuous type, possibility to wash the solids
  • Different size openings (from 0.25 to 10 mm) for any kind of solids to be removed

 

The unit can be installed in a concrete channel or supplied with self supporting tank complete with inlet/outlet flanged connections and safety overflow.

 
 Models 

  

  • screw screen with compactor for channel installation - FCP 

  • screw screen without compactor for channel installation - FC

  • screw screen with compactor in a self-supporting container - FCP-C

  • screw screen without compactor in a self-supporting container - FC-C

 

 

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