MECHANICAL BAR SCREEN

MULTI RAKE BAR SCREEN

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The NWS Multi Rake BAR Screen is a chain-operated bar screen used to remove solids from channel flow. The NWS Multi Rake Bar Screen is installed vertically and remains partially submerged in the channel. Debris is collected by a chain-operated cleaning rake, which intermeshes with the rake bars. The collected debris is discharged at the top during the upward motion of the rake, and the rake is cleaned by a scraper during the descending motion of each cycle.

The drive unit is installed at the top and controlled through a control panel. Multi-rake mechanical screens are commonly used as both fine and coarse screens in medium and large-sized water and wastewater treatment plants and pumping stations. Multiple chain-mounted rakes clean a single, stationary bar screen and help to reduce the time taken to clean the bar screen. This provides high waste discharge capacity in a short cycle time. These types of screens are mostly preferred equipment because of their economical mechanism and proper operation system, even in deep channels.

Multi-Rake Mechanical Screens mainly consist of a frame, rakes, screen media, chain, sprockets, counter wiper, and discharge chute. They are angularly mounted to channels.

APPLICATIONS

• Wastewater pumping station
• Municipal and industrial wastewater treatment plants.
• Surface water intake pump house
• Storm water drain

DESIGN FEATURES

• All drive mechanisms are above the water level
• Screen operation can be controlled by level difference upstream/downstream through an optional level control system
• Rigid stainless steel design
• Low head loss
• Low maintenance
• High screening discharge capacity
• Easy installation

TECHNICAL DATA

• Suitable for channel widths: 400 mm to 2000 mm
• Bar Spacing: 6 MM to 25 mm (Different spacing on request)
• Angle of Inclination: 75°
• Rigid stainless steel design
• Larger sizes available upon request