DEVICE AND METHOD FOR PREPARING METAL POWDER BY MEANS OF PLASMA

A device and method for preparing metal powder by means of plasma. The device comprises a feeding motor (1), a high-temperature plasma jet generator (2), a high-efficiency segmented cooling tower (3) and a powder collector (4). Three feeding ports (5) distributed in central symmetry and a generator nozzle (6) arranged at the central position are provided at the top of the high-efficiency segmented cooling tower (3). Extension lines of the feeding ports (5) intersect at a point, a material (7) is provided in each of the feeding ports (5), the feeding motor (1) is provided at the tail of the material (7), the tail of the material (7) is further connected to a three-phase alternating current power supply (8), the generator nozzle (6) is communicated with the high-temperature plasma jet generator (2), the powder collector (4) is communicated with a bottom outlet of the high-efficiency segmented cooling tower (3), and a plurality of air inlets (9) are provided in the tower body of the high-efficiency segmented coo