Repair apparatus and repair method

A repair apparatus for a container having an opening at an upper side and a refractory material layer on an inner surface, the repair apparatus comprising:

• a support frame spanning across the opening;
• a turning drive unit provided at a lower portion of the support frame;
• a vertical support member provided at a lower portion of the turning drive unit and extending in a vertical direction;
• a horizontal support member supported by the vertical support member in a liftable and lowerable manner and extending in a horizontal direction;
• a lifting drive unit configured to lift and lower the horizontal support member;
• a crushing device provided at one end of the horizontal support member and including a crushing tool at a tip thereof;
• and
• a reaction force support device provided at another end of the horizontal support member and including, at a tip thereof, an abutting member that abuts against the refractory material layer.