Powder processing apparatus and powder processing system

A powder processing apparatus comprising:

• a main body portion including:
• a cylindrical rotor that rotates at a high speed;
• and
• a cylindrical stator arranged coaxially to a rotational axis of the rotor, outside the rotor with a gap therebetween, wherein the powder processing apparatus further comprises:
• a supply port that is provided at one end of the main body portion, and that supplies a processing raw material into the gap together with an airflow;
• and
• a discharge port that is provided at the other end of the main body portion, and that discharges, from the gap, a processed product obtained by spheroidizing the processing raw material between the rotor and the stator;
• and
• wherein, in the inner peripheral surface of the stator, there are provided circumferentially elongated grooves whose circumferential length direction orthogonally intersects the axis line of the stator,
• wherein, on the outer peripheral surface of the rotor, there are provided vertical convex portions parallel to the axis line of the rotor.