Control method and control device for rubber desulfurization

The invention provides a control method and a control device for rubber desulfurization. The viscosity of waste rubber powder continuously increases during stirring and heating of the rubber powder, and the current output by a motor continuously increases and does not change the voltage in order to make a stirring shaft keep a constant rotating speed, so the viscosity of the waste rubber powder ispositively related to the current output by the motor, the corresponding current output by the motor can be set according to the viscosity of desulfurized rubber to be discharged, and a condition that the detection value of the current output by the motor reaches a preset value or not is used to judge whether the waste rubber powder reaches the required viscosity or not in order to control shutdown and discharge the obtained product, the viscosity error of the desulfurized rubber obtained in different batches in the invention is greatly smaller than the viscosity error of the desulfurized rubber produced by tradition