Method for adjusting and controlling secondary cooling water quantity of edge with quality defect at corner of slab casting blank

The invention discloses a slab casting blank corner quality defect edge secondary cooling water quantity adjusting control method which comprises the following steps: acquiring operation state parameters of related equipment in steel production and manufacturing, and performing pretreatment; constructing a visual topological structure by using the preprocessed operation state parameters; and an optimization constraint model is established based on the visual topological structure and historical data, and the secondary cooling water amount of the edge of the slab casting blank corner quality defect is adjusted and controlled. According to the method, the supercooling condition of the corners of the casting blank can be effectively reduced, the situation that the casting blank falls into a third brittle zone in the 7-8-section straightening process to cause transverse cracks of the corners is avoided, the edge water amount of a casting machine is controlled, stable control over the edge quality of peritectic pl