Efficient descaling control method for hot-rolled strip production line

The invention relates to an efficient descaling control method for a hot-rolled strip production line, and belongs to the technical field of hot rolling in the metallurgical industry. According to thetechnical scheme, a system pressure sensor signal, a finish rolling energy accumulator liquid level switch signal and a finish rolling lowest liquid level valve electromagnetic valve signal on a finish rolling energy accumulator pipeline are connected into a furnace rear and a rough rolling descaling PLC control system, and meanwhile the signals need to be completely disconnected from a finish rolling descaling PLC control system; and then a program segment is added in the furnace rear and in the rough rolling descaling PLC control system program to control the liquid level and a lowest liquid level valve of a finish rolling energy accumulator, and the system pressure of the finish rolling energy accumulator is used in a lifting speed control program segment in the furnace rear and in a rough rolling descaling pu