For tailored advice and product selection/configuration assistance, please contact a sales representative. 19 Water Technology > EDS Water Management > Stations Mechanical Pre-Treatment Station Function Mechanical cleaning, also known as screening systems raking, serves as the initial cleaning stage to remove coarse materials, such as wood, hygiene articles, and more, from the inlet. Its purpose is to protect downstream machinery from clogging and damage. Various applications include: – Wastewater pre-cleaning in the inlet structures of sewage treatment plants. – Water extraction from flowing water sources. – Placement in front of water turbines at weirs. In all three cases, the goal is to maintain a steady water flow while collecting coarse materials for further use. Ultrasonic sensors are employed for level measurement both upstream and downstream of the rake to enable remote plant status monitoring and automatic scraper activation. As a demonstration, plastic balls are introduced into the water flow to simulate contaminants. The scraper captures solid materials at the rake, and the electro-pneumatically driven scraper conveys them either to a collection tank or a water return trough. If the water return trough is utilized, the balls remain in the system as contaminants, enabling continuous operation without manual intervention. This station can be seamlessly integrated into the EDS Water Management System. An overflow connection is included to demonstrate potential flooding scenarios. The channels are constructed from sturdy stainless steel sheets.
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