Drum sieve TR 40,TR 63 series

Rotary screens are pre-treatment equipment used to separate solid waste from clean water through a filter drum. This drum can be either screen or perforated depending on the type of solids to be treated. Capacity .From 7 m3/h up to 363 m3/h in clean water .Small flow rates .High performance with high solids load .Smaller filter surface Description .Produces polished effect, high output water quality .Protected from outlet overloads .Robust, high strength infused GRP lamella construction,no colapsa. .Easy cleaning ROTARY SCREEN FUNCTIONING .The effluent to be treated enters through the flange on the outside of the screen body and is evenly distributed through the spillway and overflow through the filtering drum. .The solids are retained on the surface of the drum while it is rotating, the spill penetrates through the mesh opening and performs a self-cleaning function by passing through the lower part of the drum again. .As it passes through the outer scraper, the solids are released from the screen and gravity causes the solids to fall off the scraper. OPERATION OF ROTARY SCREEN .The effluent to be treated is pumped or pressurised to the screen head. After a certain retention time, determined by the filling of the screen’s feed box, a laminar overflow occurs in which the liquid slides smoothly through the filter mesh. .In this sliding process, the liquid passes through the screen (most of it in the first section), with the solids retained on the screen surface and falling to the bottom and draining out of the screen. and out of the screen.