Automatic cable rake screen
This is a longitudinal cable rake screen. It is ideal for great heights of water or deep shafts, without restrictions on discharge height or channel width.
Cleaning is carried out frontally using a rake that travels along a fixed guide on the frame. It is driven by cables.
Materials
The screen bars, made from carbon steel, are blasted with metal particles, to a Swedish Standards Organisation grade of SA 2 1/2, and then covered with corrosion-resistant paint. Alternatively, they can be made from galvanised stainless steel.
DETAILS
Technical data
Drive unit
The drive unit comprises a stainless steel shaft mounted on bearings and a hollow shaft geared motor.
Transmission by cables and reel drums located on the drive shaft.
Cables guided by guide pulleys.
Three-phase asynchronous electric motors with IP-55 protection.
Screen cleaning
Oscillating rake with teeth to clean the bars.
Articulated rake on roller carriage that travels vertically using cables (2), along the frame guide.
The rake is driven by a geared motor and a spindle that permits variation of the guide pulley distance.
Frame
Monobloc frame made from steel sections with anchoring frame to building works.
Rake cleaning
Plastic-coated rake cleaning scraper.
Oscillating scraper arms with cushioned action.
Screen
Bars inclined 85º from the bottom.
Screen made up of independent bar modules.