Barrel limiting device for overhauling ash melting machine

The utility model relates to a barrel limiting device for overhauling an ash melting machine in the technical field of overhauling auxiliary equipment. The barrel limiting device comprises an ash melting machine barrel, the liming machine barrel is matched with a limiting assembly, fixed stop blocks are fixed to the liming machine barrel corresponding to the limiting assembly, and the multiple fixed stop blocks are evenly distributed in the circumferential direction of the outer wall of the liming machine barrel; the limiting assembly comprises a bottom plate, a guide column, a base and a movable check block which are connected in a matched mode. The guide columns are fixed to the bottom plate, a telescopic supporting rod is connected between the base and the bottom plate, the movable check block is arranged in a movable cavity of the base in a sliding mode, the other end of the movable check block extends out of the movable cavity and is matched with the fixed check block, and a spring is arranged in the mov