Intelligent sand adding system for steel ladle hot repair

The invention provides an intelligent sand adding system for steel ladle hot repair, comprising: a stuffing sand fixed storage device comprising a fixed platform and a sand storage assembly; the movable sand adding device comprises a movable trolley, a sand adding assembly, a sand adding pail and a lifting mechanism, and the movable trolley can move between a sand receiving position and a sand adding position; the sand adding assembly is arranged on the moving trolley and used for adding sand into the sand adding pail. The lifting mechanism is arranged on the moving trolley and used for driving the sand adding pail to ascend and descend so that the sand adding pail can discharge stuffing sand to a water opening in the bottom of a steel ladle. And the control device is configured to control the moving trolley to move from the sand receiving position to the sand adding position according to an instruction, and when it is determined that the moving trolley reaches the sand adding position, the sand adding assemb