Cutting apparatus for fuel basket containing spent nuclear fuel in heavy water reactor

A cutting apparatus for a fuel basket accommodating spent nuclear fuel of a heavy water reactor, the cutting apparatus comprising:

• a base;
• a vertical support arranged on one side of the base;
• a turn table arranged to be reciprocated between one side and an opposite side of the base and be horizontally rotatable on the base;
• a horizontal support arranged to extend from an upper-end of the vertical support in a horizontal direction toward the turn table;
• a side-cutting means arranged on the vertical support protruding toward the turn table for cutting a side welding bead of the fuel basket mounted on the turn table;
• and
• an upper-cutting means arranged on the horizontal support protruding toward the turn table for cutting an upper welding bead of the fuel basket mounted on the turn table,
• wherein the side-cutting means comprises:
• a bracket fixed to the vertical support;
• an elevating screw arranged to be rotatable in the bracket;
• an inclined block screw-coupled with the elevating screw and provided with a downwardly inclined surface to be elevated in a height direction of the bracket by rotation of the elevating screw;
• a mount having an inclined surface corresponding to the inclined surface of the inclined block and arranged for moving straight toward the fuel basket of the turn table with respect to the bracket while cooperating with elevating action of the inclined block;
• and
• an air motor arranged in the mount and a cutting tip generating rotating force by power of the air motor.