Apparatus for continuously filtering a sludge suspension

Abstract

Anapparatus for continuously filtering a sludge suspension, having a hollow shaft (2) that is rotatably mounted in a housing (1) and which that is fluidically connected to an inner chamber (6), which is surrounded by a filter membrane (5), of a discoid filter element (3) that radially protrudes from the hollow shaft (2), for removing a filtrate. A higher throughput of the filtrate, independently of the solids content of the sludge suspension to be filtered, is provided by the filter cake thickness and the filtration duration. The the radius (r) of the filter element (3) increases in the circumferential direction from a low pressure radius ri to a high pressure radius rh,reducing the free housing cross section. An apparatus for continuously filtering a sludge suspension, having a hollow shaft (2) that is rotatably mounted in a housing (1) and that is fluidically connected to an inner chamber (6), which is surrounded by a filter membrane (5) of a discoid filter element (3) that radially protrudes from the hollow shaft (2), for removing a filtrate. A higher throughput of the filtrate, independently of the solids content of the sludge suspension to be filtered, is provided by the filter cake thickness and the filtration duration. The radius (r) of the filter element (3) increases in the circumferential direction from a low pressure radius ri to a high pressure radius rh, reducing the free housing cross section.

Dependencies are inferred from the claim text.