This invention relates to the field of
rare earth electrolysis processes, specifically to an
oxide feeding
control system and its control method, comprising: an
oxide feeding device and a control module. The
oxide feeding device includes a first hopper and a second hopper located below the first hopper. A control valve is installed between the first and second hoppers. A feeding mechanism is installed below the second hopper, and a loss-in-weight detection scale is installed at the bottom of the second hopper. The control valve includes a valve body, a
drive motor, and a transmission component. A valve core is connected to the end of the transmission component. A spring is installed on the side wall of the valve body located below the valve core. A first
vibration sensor is provided at one end of the spring near the side wall. The control module is electrically connected to the
drive motor, the loss-in-weight detection scale, the first
vibration sensor, and the second
vibration sensor. When the second hopper is filled to more than 70% of the
target weight, the speed of the motor
auger is reduced. This invention reduces the
impact on the sensors to an acceptable range, thereby achieving precise control.