Grader structure for activating powder

The classifier structure comprises an upper bin body, a middle bin body and a lower bin body which are sequentially connected from top to bottom, a discharging port is formed in the side portion of the upper bin body, a feeding port is formed in the side face of the middle of the middle bin body, and a discharging port is formed in the bottom of the lower bin body. A discharging device is installed in the upper bin body and connected with a transmission shaft extending upwards, the transmission shaft is in transmission connection with a discharging motor through a belt, and a discharging device is installed at the upper end of the discharging port; activated powder is blown by high-pressure air to move forwards through the conveying pipeline and enter the middle bin body through the feeding port, qualified powder enters the upper bin body upwards under the action of the high-pressure air, and a finished product is conveyed to the finished product bin through rotation of the dischargingdevice. According to the