This invention discloses a sieving device for purifying theaflavins in tea, comprising a high-temperature and high-pressure treatment tank. The top and bottom of the high-temperature and high-pressure treatment tank are equipped with connecting pipes. The sieving device also includes a fixing frame, which is fixedly connected to the surface of the high-temperature and high-pressure treatment tank. A motor is fixedly mounted on the surface of the fixing frame, and the
drive shaft of the motor is fixedly connected to a connecting seat. This invention uses a second electric push rod to retract, causing a fixing pin to move horizontally and disengage from the mounting post. An electric push rod third, located on the back of the connecting seat, extends. When the filter tank body rotates to below the high-temperature and high-pressure treatment tank, the extract can be filtered again by the filter
assembly. Therefore, the position of the filter
assembly can be adjusted according to actual needs to directly filter and
sieve the extract, saving time spent during transportation and shortening the overall tea
processing time, thus improving the practicality of the device.