Spiral propulsion continuous drying device

The utility model discloses a spiral propulsion continuous drying device which comprises a strip-shaped casing, a grooved cylinder for thermal insulation, and a spiral propellor positioned inside the casing; the periphery of the casing is wrapped by the grooved cylinder; a feeding end and a discharging end are arranged on the casing and in positions correspondingly to the grooved cylinder; the spiral propellor comprises a rotating and driving device and a spiral rod driven to rotate through the rotating and driving device; an oil delivery pipeline is arranged inside the rod body of the spiral rod; the oil delivery pipeline is provided with an oil outlet and an oil inlet used for feeding hot oil, and the oil inlet and the oil outlet are formed in the same end of the rod body; the front wall, the rear wall and the bottom wall of the grooved cylinder all adopt hollow structures, so as to form an oil chamber, an oil inlet and an oil discharge opening are respectively formed in the front wall and the rear wall of the grooved cylinder, one side of the oil inlet is communicated with the oil discharge opening through the oil chamber, and the other side of the oil inlet is communicated with the oil outlet through a guide pipe. The spiral propulsion continuous drying device provided by the utility model can achieve continuous and efficient sludge anhydration.