| 摘要 |
PURPOSE: A sludge drying machine is provided to prevent abrasion generated in the friction surface between a sludge transfer pipe and a shaftless screw, and to enhance transfer and drying capability of sludge while simplifying configuration of the sludge drying machine. CONSTITUTION: A sludge drying machine comprises; a sludge transfer in which the multi-shaft screw(120) for transferring sludge in a transfer pipe to upwards, is installed to be rotated; a sludge input part; a sludge heating unit, an air heating unit; and a sludge discharge part. The multi-shaft screw comprises a shaftless screw(121) of which both ends are axis-fixed, a plurality of supporting shafts(122), and a hollow pipe(123) supplying recirculation air to a sludge transfer pipe. |
