Control method with deviation rate adjustment function

The invention provides a control method with a deviation rate adjustment function, and belongs to the field of mineral separation control. The control method is realized through a laser liquid level sensor, a PLC and a pneumatic adjustment valve, wherein the input of the pneumatic adjustment valve is connected with the output of the PLC, the input of the PLC is connected with the output of the laser liquid level sensor, the laser liquid level sensor is arranged inside a floating cell, and the pneumatic adjustment valve is connected with an ore pulp input pipe. By the adoption of the control method, adjustment control is accurate and the phenomena of unstable production and unstable product quality can be avoided.