1results about How to "Improve powder selection efficiency" patented technology

The utility model provides a kind of efficient powder concentrator, it is related to powder concentrator technical field, it includes shell, at least one upper air inlet and at least one lower air inlet are circumferentially provided on the outer wall surface of shell;Airflow guide vane assembly, it is located inside shell and extends to the boundary of shell upper portion and shell lower portion, for the airflow from upper air inlet and / or lower air inlet is guided into rotating airflow;Rotor vane assembly, it is located inside shell and is located inside airflow guide vane assembly, for guiding part powder flow turns to air outlet;Rotor vane assembly and the airflow guide vane assembly between form with the powder selection channel that is connected with feed inlet and discharge port, and in the rotor upper portion is provided with a secondary distribution plate in primary distribution plate middle portion.Setting secondary distribution plate in the utility model compared with prior art, powder can make powder in powder selection path stay longer, to ultimately improve the efficiency of powder selection.