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ROTARY DRUM FILTER. ROTARY DRUM FILTER. Filter characteristics Filter types Typical use Common problems Sefar solutions. ROTARY DRUM FILTER Filter characteristics. Piping. Drum. Drive. Valve. Scraper. Agitator. Suspension Tank. ROTARY DRUM FILTER Filter characteristics. PIPING.
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ROTARY DRUM FILTER • Filter characteristics • Filter types • Typical use • Common problems • Sefar solutions
ROTARY DRUM FILTERFilter characteristics Piping Drum Drive Valve Scraper Agitator Suspension Tank
ROTARY DRUM FILTERFilter characteristics PIPING VALVE BRIDGING Drum rotation Cake washing/ drying (vacuum) Cake blow Cake formation (vacuum)
ROTARY DRUM FILTERFilter characteristics Final dry zone Wash zone Blow and discharge zone Predry zone Dead zone Formation zone
ROTARY DRUM FILTERFilter types • with grooved filter cloth or wire fixing
ROTARY DRUM FILTERFilter types • Cake discharge: String Scraper/Wire Roller
ROTARY DRUM FILTERFilter types • with belt discharge (run-off belt)
ROTARY DRUM FILTERFilter types • Cake discharge Belt
Rotary Drum Filter Filter Types • “Bird-Young” encapsulated filter
ROTARY DRUM FILTERTypical use • Working conditions: • continuous de-watering of high solid content slurries requiring no or little washing • Slurries with solids that do not tend to settle rapidly • Filtrates that generally do not require a sharp separation between the mother and wash filtrates
ROTARY DRUM FILTERTypical use • Industries: • Mineral ores such as alumina, coal, kaolin • Basic chemicals such as synthetic resins, waxes • Sweeteners and starch
ROTARY DRUM FILTERCommon problems • Lifetime of the drum cover • Clogging / filtration performance • Belt tracking • Belt width
ROTARY DRUM FILTERSefar Solution • choice of monofilaments and DLW • choice of polymers • suitable pore size and construction • standard rubber profiles available
ROTARY DRUM FILTERSefar solution • special closures available • welding and stitching for extra wide drums
ROTARY DRUM FILTERSefar solution • Sefar Filter Media • see selected samples and fabric sample book • Sefar Fabrication