GEIGER® Center-Flow Travelling Band Screen, in-to-out flow pattern
As the last cleaning stage for water intakes, finest screening is of particular importance to protect downstream equipment such as pumps and condensers reliably against clogging. GEIGER® Travelling Band Screens have, for decades, been operating successfully in water intake systems in power stations, petrochemical and sea water desalination plants, steel works and other industrial plants all over the world. Among their outstanding features are high throughput and small machine size.
The GEIGER® Center-Flow Travelling Band Screen, in-to-out flow pattern is installed along the water’s flow direction with the open machine side showing to the water source. The dirty water flows through the mesh panels on both sides of the machine, leaving it in two cleaned streams. The screenings sticking to the inside of the ascending mesh panels are transported up to the collecting trough at operating floor level. While coarse screenings are directly thrown into the trough, mesh panels are completely cleaned by means of a wash-water system.
Even the most stubborn screenings remain inside the travelling band screen after having passed by the wash-water device and will finally be removed by the water jet. Large sediments, rolling matter and floating substances also get inside the machine from where they are removed. Thus, deposits on the channel floor and the carry-over effect, which can often be observed in the case of machines with other flow patterns, do not appear at all.
Please note that the Center-Flow Travelling Band Screen may also be equipped with fish buckets to help protect aquatic life. It is EPA 316b-compliant as the best technology available for reducing impingement.
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