| 摘要 |
A device for thickening liquid substrate containing solid material, having a liquid permeable filter pipe that retains solid material, and a rotatable screw conveyor in the filter pipe. A substrate inlet leads into and a liquid outlet and a solid material outlet go out from the filter pipe. Solid material from the introduced substrate is deposited on an inner surface of the filter pipe, and, using the screw conveyor, solid material for the forming a solid material plug is pressed into a pressure duct situated between the filter pipe and the solid material outlet, and is discharged from the pressure duct through the solid material outlet. The screw conveyor has an outer diameter that is smaller than the inner diameter of the filter pipe by an amount that permits the formation of a carpet-type solid material coating, forming a fine filter, on the inner circumference of the filter pipe. |
