RAW MATERIAL HEATING DEVICE

PROBLEM TO BE SOLVED: To provide a raw material heating device capable of continuing with a subsequent process.SOLUTION: A tubular body 3, which is formed in a tubular shape centered on a horizontally extending axis 2 and rotates around the axis, has openings 6A and 6B at both ends in an axial direction. A raw material input pipe 7 is arranged at the opening 6A at one end in the axial direction, and introduces a raw material which is a water-containing combustible material into the tubular body 3 as the material to be heated, and a superheated steam feeding pipe 8 is arranged at either the opening at one end or the opening at the other end, and feeds superheated steam into the tubular body from the one opening toward the other. In addition, transport means, which transport the raw material from the opening at one end to the opening at the other end, are provided within the tubular body 3, in an intermediate area except for both ends thereof in the axial direction, and the water content of the raw material is dried by heating the raw material with the superheated steam while it is transported, with the raw material being discharged in a high-temperature state from the opening 13 at the other end after being dried.