Method for improving coal blending accuracy of silo

The invention belongs to the technical field of coking coal blending, and relates to a method for improving the coal blending accuracy of a silo, which comprises the following steps of: firstly, numbering a silo coal blending stockline, a silo belt weigher and air cannons respectively, determining the correlation corresponding relation of the three according to the material flow direction, and then setting the starting condition of each air cannon through an automatic control system; and when the discharging flow of the silo reaches the automatic starting condition of the air cannon, the air cannon is controlled to be automatically started. According to the invention, through the association of each coal blending stockline, each silo number, each blending disc and each air cannon, the automatic starting condition of the air cannon is set through the automatic control system, the automatic starting of the air cannon is realized, the non-timeliness of manual operation is avoided, the labor intensity of people i