ROTARY KILN

摘要

PROBLEM TO BE SOLVED: To increase a heat transfer area and improve a processing capability without making an entire large-sized rotary kiln of indirect heating system. SOLUTION: An inner cylinder 19 is stored concentrically within a lateral elongated outer cylinder 18 fixed and installed in such a way that an outer heating flow passage 20 is formed between it and the outer cylinder 18, and then the inner cylinder can be rotationally driven. A partition plate 29 having a double-structure is assembled in the inner cylinder 19 in such a way that it may extend in a radial direction from a center part of rotation. An inner space of the partition plate 29 of the double-structure is applied as an inner heating flow passage 30. Waste material 13 supplied into a pyrolysis chamber 19a is heated with hot air 11 flowed in the outer heating flow passage 20 and the inner heating flow passage 30 and further the material is processed with an entire circumferential surface of the pyrolysis chamber 19a being applied as a heat transfer surface.