Thermal -insulated high temperature air classifier

The utility model discloses a thermal -insulated high temperature air classifier, include the branch driving cone that lies in the hierarchical chamber of lower extreme and lie in hierarchical intracavity, hierarchical chamber one side row of being provided with material pipe, hierarchical chamber upper end is provided with the motor, the output shaft of motor has the bearing of tape spool bearing, the bearing passes through the main shaft and connects the branch driving cone, be provided with the baffle between bearing frame and the hierarchical chamber, be provided with oil inlet and oil -out and oil stream passageway on the bearing frame. The utility model discloses a bearing frame and hierarchical chamber are separated to the baffle, have stoped the high temperature air current along the last heating of bearing frame to bearing and sealing element, have reduced the thermal conductivity, have protected the normal work of bearing, set up the oil stream passageway simultaneously on the bearing frame, utilize