| abstract |
A heat treating apparatus for powder particles containing a binder resin and a colorant, the heat treating apparatus including: a treating chamber in which a heat treatment of the powder particles is performed; a raw material-supplying unit for supplying the powder particles to the treating chamber; a hot air-supplying unit that supplies hot air to the treating chamber; a cold air-supplying unit that supplies cold air for cooling the heat-treated powder particles; and a recovering unit that recovers the heat-treated powder particles. The raw material-supplying unit includes an introducing tube and a distributing member, and the distributing member is provided with a protruding member on a portion opposite to an outlet portion of the introducing tube, and the distributing member includes a supplying tube including two or more flow paths that extend radially outwardly from the protruding member to a wall surface of the treating chamber. |