METHOD FOR SEPARATING AND MOBILE PACKING LAYER IN DIRECT AND ALTERNATING FLOW TYPE CONTINUOUS MOBILE LAYER TYPE SEPARATION APPARATUS

摘要

PURPOSE:To achieve the purification of a mobile layer by preventing the clogging of said layer, by separating a filter layer by flow guide bodies provided with intervals while moving the mobile layers in a fluid inlet side and a fluid outlet side at different speeds. CONSTITUTION:Raw water supplied from a raw water supply nozzle 1 passes a raw water side filter layer (high speed region) 4 and a treated water side filter layer (low speed region) 10 through a raw water tank 2 and a raw water side screen 3 to remove SS therein and treated water is discharged out of the system from a treated water discharge nozzle 6 through a treated water side screen 8 and a treated water tank 7. On the other hand, flow guide bodies 9 are arranged at constant intervals at the boundary of the aforementioned filter layers 4, 10 and the filter material supplied from a filter material supply port 5 is moved through the filter layers 4, 10 at different speeds to be discharged out of the system from a filter material discharge nozzle 13.