| 摘要 |
2122008 9308917 PCTABS00021 An improved centrifugal impactor (10) includes a housing (12) having a crushing chamber (14) and a rotor (18) spaced radially inwardly from the crushing chamber (14) so as to define an annular passage for communicating a flow of rocks from an upper inlet opening (34) and the crushing chamber to a lower outlet opening (38). The rotor includes a horizontal platform (42) and a pair of outer and inner annular vertical barrier members (44, 46) attached to and extending upwardly from the horizontal platform. The outer barrier member (44) is disposed about a peripheral edge of the horizontal platform. The inner barrier member (46) is disposed in concentric relation with the outer barrier member and spaced radially inwardly from the outer barrier member. The barrier members of the rotor cooperate to drap and accumulate rocks and form a pair of separate concentric annular beds (B1B2) of accumulated rocks in a substantially symmetrical distribution on the horizontal platform of the rotor.
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