Fracturing process-based sand supply and mulling adaptive control method, terminal and storage medium

The invention provides a fracturing process-based sand supply and mulling self-adaptive control method, which comprises the following steps that a sand supply and mulling self-adaptive control system is constructed, and the sand supply and mulling self-adaptive control system comprises a plurality of groups of continuous sand conveying devices, a sand mulling skid and a plurality of groups of additive devices; splitting the sand supply and mixing operation into a plurality of operation stages according to the sand supply and mixing type, and establishing an operation stage library; inputting parameters of each operation stage into the operation stage library for one-to-one correspondence; on the basis of the total discharge amount of the sand mixing sledge, the current operation stage library is switched, and the sand type, the dry adding type and the liquid adding type are switched according to data in the current operation stage library; and the sand wringing amount, the liquid adding suction amount and the