GAH Global - Curved Self Cleaning Bar Screen
From Industrial Pre-Cleaning Equipment
This type of screen consists of an arched bar grid with integrated mechanical cleaning through a rotating arm from a central shaft drive system. The geared drive motor and shaft bearings are all mounted in readily accessible positions above the channel. There are no submerged components (bearings, cables or chains), thus ensuring reliability and reducing overall maintenance requirements. The grid is manufactured from curved bars wedge form witch are thin at the direction of flow. The bar spacing ranges from 10 mm to 20 mm. The rotating rake assembly is an independent self rotating arm and completes 360º degrees cycle. All parts are manufactured completely in stainless steel AISI 304L.
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Product Details
Pre Cleaning Mechanisms and Equipments for Sewage Waste – Industrial – Agriculture and Nature Preservation Plants
All Structures and parts are manufactured completely in Stainless Steel AISI 304L
Arched self cleaning bar Grid
This model can be applied to several waste filtration:
- Sewage Waste Treatment Plants (WWTP)
- Meat and Fish Industrial Waste
- Textile Industries
- Agriculture Waste Treatment Plants
- Industrial Waste
- Chemical Industries
- etc
Operation
In operation, wastewater flows though the curved screen, approaching from the upstream side and after passing through the screen, departing on the downstream side. The screenings are automatically removed from the rake arm as it passes a hinged scraper blade (doctor blade). This transfers the screenings into a discharge chute located at the end of the screen, which in
return will transfer the screenings either into a collection bin, onto a discharge conveyor, or onto a drainage platform (for manual removal). The operation of the grid can be controlled on a timer basis, or via the level differential either side of the grid. As the screen blinds, so the water level upstream of the screen rises, creating a level differential between upstream and downstream water levels. Once this level difference reaches a pre-determined height, the grid will commence operating. The grid will then run for a pre-set time, or until the level differential has decreased to a pre-determined value.
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