| 摘要 |
A primary classifier ( 300 ) particularly suited for use in a bowl mill ( 10 ) of the type that is employed for purposes of effecting the pulverization of materials such as coal is provided by the present invention. The primary classifier ( 300 ) includes a vane wheel portion ( 360 ) affixed to the periphery of the rotatable grinding surface ( 14 ) of the bowl mill ( 10 ) so as to extend circumferentially around the entire interior of the substantially closed separator body ( 12 ) of the bowl mill ( 10 ). The primary classifier ( 300 ) further includes a low profile deflector portion ( 380 ) mounted within the interior of the substantially closed separator body ( 12 ) of the bowl mill ( 10 ) in closely spaced relation to the circumference of the rotatable grinding surface ( 14 ) at an elevation below the elevation of the grinding journal openings ( 205 ) and so as to extend continuously without interruption about the entire interior of the substantially closed separator body ( 12 ) of the bowl mill ( 10 ).
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