The invention relates to the technical field of
ganoderma lucidum
powder screening devices, in particular to a white
ganoderma lucidum
powder airflow screening device and method. According to the technical scheme, the device comprises a screening
barrel and a sealing plate fixedly connected to the upper end of the screening
barrel, the upper end of the sealing plate is fixedly connected with a stock bin, the bottom end of the screening plate is connected with a cleaning
pipe in a penetrating mode, and the bottom end of the screening
barrel is connected with a first discharging
pipe through a conical cover; and the cleaning auxiliary mechanism is used for controlling opening and closing of the port of the cleaning
pipe. The cleaning auxiliary mechanism is arranged at the upper end opening of the cleaning pipe, the blocking mechanisms are arranged at the bottom ends of the two discharging openings, after the connecting shaft rotates by 90 degrees, the two discharging openings can be closed at the same time, the end opening of the cleaning pipe is opened, and coarse materials on the inner wall of the bottom end of the screening plate are discharged through the cleaning pipe under the action of
airflow; the effect that fine materials and coarse materials are thoroughly separated and discharged is achieved, the screening efficiency is not affected, the screening plate is kept in a good screening state, and the maintenance rate of the screening plate is remarkably reduced.