PURPOSE:Coal is crushed, heated at a temperature at which tar distillates out, and resultant combustible gas is made to burn and coal is heated utilizing the combustion heat, thus increasing the calorie of lower quality coal and its hydrophobic properties with necessary heat source saved. CONSTITUTION:Lower quality coal is fed to the moving bed 12 for drying and dried as being stirred, then fed to the moving bed for dry distillation 15 to effect dry distillation under agitation, then sent to the receiver 17 and taken out of the line 18 as a reformed coal. As the heat source, is used the combusted gas after the fuel is made to combust in the combustor 19. The fuel and air are fed to the combustor 19 and the resultant combustion gas is sent to the heat medium jacket 24 of the moving bed for drying and to the heat medium jacket 25 of moving bed for dry distillation.
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