Application scenarios：
The Internal Flow Rotary Rake Screen is a highly reliable, stable, and high-performance mechanical screening and filtration device. It is widely used in municipal sewage and water treatment plants, various industrial wastewater treatment facilities, as well as other solid-liquid separation applications.
During operation, the product continuously and automatically removes suspended solids such as wooden wedges, branches, plastic products, construction waste, domestic waste, and sanitary napkins from the filtered water. It is an ideal and efficient pre-treatment equipment for water supply and drainage systems.
Structure&Principle：
Main Structural Components:The Internal Flow Rotary Rake Screen consists of underwater grid bars, sprocket chains, a main frame with a slag discharge mechanism, a screen housing, a drive motor, and system seals.
Filtration Principle:Wastewater to be filtered flows into the interior of the screen through the water inlet in the middle of the frame. The water exits through the grid bars on both sides, while suspended solids such as construction waste and domestic refuse are trapped inside the bars.
The rake plates attached to the chains rotate from the top of the screen down to the bottom of the channel. Upon reaching the bottom, the rakes ascend along the grid bars, scraping off the trapped screenings and conveying them upwards. Static dehydration occurs as the rakes pass the back plate. Upon reaching the top of the screen, a scraper plate pushes the screenings sideways into the discharge outlet for removal.
Equipped with rake plates at regular intervals, the screen features a multi-stage rake design that ensures continuous screening capability.
Main Features：
1. The unique internal flow pattern effectively prevents screenings from escaping over the top of the screen.
2. The compact structure allows for easy installation and retrofitting into existing channels.
3. Features extremely low head loss combined with ultra-high separation efficiency.
4. The unit is fully enclosed to prevent odor leakage, with easily removable covers for maintenance.
5. Unaffected by gravel or grit, ensuring reliable operation in harsh conditions.
6. The screening capacity can be increased by adjusting the number of rake plates.
7. The screen can operate in both forward and reverse directions to prevent clogging between the bars.
8. Equipped with a fully automatic scraper discharge mechanism that operates without the need for flushing water.
