Coanda Screens (Coanda intake screen,Coanda screen system ) are water treatment Coanda screens, exploit the Coanda effect in combination with the proven separation technology of wedge wire, using the special curved wedge wire screen.
Coanda Screens is a self-cleaning screen with no moving parts that have been successfully used for debris and fish exclusion in a wide range of applications across the world including hydropower plant intakes, water conservation schemes, and irrigation programs. In addition, the shape of the Coanda screen helps ensure that the filtration process is accurately completed by the flow forces exerted.
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Due to the Coanda effect – liquid follows a surface – in combination with the shearing effect of the profile bars, the water flows into the intake and prevents the penetration of small aquatic creatures in the water system.
Flowing media have the property of sticking to flat or convex surfaces according to the Coanda effect. Example of flowing water on a spoon: If you hold a spoon in a stream of water, the water follows its curved surface and leaves it in a different direction than it came. You can feel the associated force that pulls the spoon into the water jet. Our Coanda screens work on the same principle.
Coanda Screens can be produced in 304 or 316 grade stainless steel. The uniformity and precision slot gap of the screening area ensures high capacity throughputs and accurate removal of debris.
Each Coanda Screen can be produced to bespoke dimensions and specifications with optional slot gap widths, wire profiles and inclinations to maximise performance.
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Screen selection and bespoke design
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The main applications of the Coanda screen system are:
1. Hydroelectric power plants
Coanda screen prevents harmful materials, and deposits in the suction process and ensures clean water. In this way, turbine blades in hydroelectric power stations can run longer without being damaged.
2. Agricultural Applications
Coanda screen is preferred for agricultural applications, for example, to provide plants with clean water. Coanda Screen prevents sediment, sticks, and soil from the water channel. This provides significant solutions for agricultural applications where clean water is required. In agriculture, the Coanda screen system is also used for mobile filtration.
3. Wastewater treatment
Coanda filter screens can provide clean water for municipal applications such as wastewater treatment. Efficient filtration of liquid-liquid separation aids in zero-power wastewater treatment applications.
4. Drinking water
Because of its superior filtration and self-cleaning ability, the Coanda screen is widely used in the industry. The perfect filtering of the water ensures that it is safe for human consumption.
5. Debris and Fish Exclusion
Trusted in fisheries conservation areas not to cause harm to fish stocks