| 摘要 |
PURPOSE: A heating roller and a sludge drying apparatus using thereof are provided to improve the drying efficiency of sludge contacting with the surface of a rotator. CONSTITUTION: A sludge drying apparatus comprises the following: a dehydrating roller(31) dehydrating the moisture from sludge; and a heating roller(50) drying the sludge. The heating roller includes a rotator contacting with the sludge, a heater heating the rotator, and plural heater fixing u nit fixing the heater to the inner circumference of the rotator. |
