Coal dry-distillation device and modified coal production equipment using same

摘要

A rotary kiln-type coal dry-distillation device (120) that: rotatably supports an inner tube (112) inside an outer tube (113); supplies heating gas (17) to the interior of the outer tube (113); moves dried coal (2) from one end side of the inner tube (112) to the other end side, and agitates and dry-distills the dried coal (2) under heat by supplying the dried coal (2) from the one end side of the inner tube (112) to the interior, and rotating the inner tube (112); sends out dry-distilled coal (3) and dry-distilled gas (14) from the other end side of the inner tube (112); and has provided therein a pulverized coal supply device (170) that supplies pulverized coal (4a) having a particle diameter of no more than 100 µm to the interior of the inner tube (112), such that the volume of the pulverized coal is 1-10 wt% relative to the amount of dry-distilled coal (3) sent from the other end side of the inner tube (112).