| 摘要 |
A particle distributor assembly (10) for distributing the particles of a drill sample is described. The distributor assembly comprises a stationary inlet tube (14) through which particles enter the distributor assembly (10), and a rotatable distributor head (16). The rotatable distributor head (16) has an upwardly directed inlet (18) offset from a central axis of rotation of the distributor head (16) and a transversely directed outlet (22) wherein, in use, when the distributor head (16) is rotated at high speed particles entering the distributor head inlet are accelerated outwardly in a radial direction through the distributor head outlet. The particle distributor assembly (10) also has a distributor nozzle (24) having an inlet (26) and an outlet (28), the nozzle inlet (26) being aligned with the stationary inlet tube and the nozzle outlet (28) being aligned with the distributor head inlet. The distributor nozzle (24) is supported between the inlet tube (14) and the distributor head (16) in such a manner that it is constrained from rotating whilst the nozzle outlet (28) is able to oscillate in a circular motion with the distributor head inlet (18). In use, the oscillating motion of the nozzle outlet (28) helps to promote particle flow and produce a more representative distribution of particles exiting from the distributor head outlet (22). |
