Automatic slag adding system, method, medium and equipment for crystallizer of continuous casting machine

The invention discloses an automatic slag adding system and method for a continuous casting machine crystallizer, a medium and equipment. The system comprises a radioactive source crystallizer material level detection device, a controller and a slag adding machine. The radioactive source crystallizer material level detection device is used for detecting the actual thickness of casting powder in a crystallizer according to a set detection moment sequence after the liquid level of the crystallizer is stable, and calculating to obtain a corresponding actual thickness mean value in combination with the actual thicknesses detected at the previous one or more detection moments at each detection moment; the controller is connected with the radioactive source crystallizer material level detection device and used for comparing whether the difference value of two adjacent actual thickness mean values is within a set threshold value range or not in real time and obtaining a comparison result; the slag feeding amount is