System and apparatus of separating remaining powder of hull

A system of separating remaining powder of hulls, the system comprising:

• an oxidation unit operable to powder and separate a pellet of hulls of a spent nuclear fuel subjected to a high-temperature oxidation;
• a first remaining powder separating unit operable to be supplied with the hulls separated in the oxidation unit, including a first brush for separating remaining powder adhered on an outer peripheral surface of the hulls;
• a hull alignment unit operable to be supplied with the hulls from the first remaining powder separating unit, and to align the hulls;
• a second remaining powder separating unit operable to be supplied with the aligned hulls from the hull alignment unit, including a second brush for separating remaining powder adhered on an inner peripheral surface of the hulls;
• a third remaining powder separating unit operable to be supplied with the hulls from the second remaining powder separating unit, to separate the remaining powder remaining on the inner/outer peripheral surface of the hulls using air;
• a hull receiving unit operable to receive the hulls transported from the third remaining powder separating unit;
• a remaining powder receiving unit operable to receive the remaining powder separated from the hulls;
• and
• a high-temperature vacuum heating unit operable to be supplied with at least one of the pellet separated in the oxidation unit or the remaining powder received in the remaining powder receiving unit, and to heat the pellet or the remaining powder in a high temperature vacuum.