COAL DEACTIVATION PROCESSING DEVICE

摘要

The present invention makes it possible to prevent the spontaneous combustion of coal while causing oxygen to be adsorbed to the surface of the coal in an efficient manner. A coal deactivation processing device is provided with: a rotary kiln body (103) that is capable of rotation and into which coal and a processing gas are supplied; and a feed pipe (142) that is provided so as to be capable of rotating together with the rotary kiln body (103), that extends along the lengthwise direction of the rotary kiln body (103), and within which a coolant flows. A pair of blades (143, 144) are provided to the outer circumferential section of the feed pipe (142) and protrude in the radial direction thereof. The feed pipe (142) and the pair of blades (143, 144) are arranged so as to pass through a coal layer resulting from the accumulation of coal (2) within the rotary kiln body (103) when the rotary kiln body (103) rotates, and so that the angle (γ) that is formed by the tangent (L2) of the path (L1) along which the central axis (C2) of the feed pipe (142) passes and the bisector (L3) of the pair of blades (143, 144) is 0-40 degrees.