Sizing a Drum Belt Filter with Washing

Example 2 Sizing a Drum Belt Filter with Washing. 18-86... 

Example 2 Sizing a Drum Belt Filter with Washing Equipment physical factors, selected from Table 18-9 Maximum effective submergence = 30% max. apparent suhm. = 35% max. arc for washing = 29% portion of cycle under vacuum = 75%. 

Multicompartment drum filters range in size from about 1 sq. metre to over 100 sq. metres they are widely used in mineral and chemical processing, in the pulp and paper industry, and in sewage and waste materials treatment. Despite their uneven wash distribution and frequently high run-off (as the filter surface is not horizontal), many continue to be used as cake washing filters. Effective washing of the filter cloth can be done only with the belt discharge type, where the cloth leaves the drum for a brief period and can thus be washed on both sides. 

---