| 摘要 |
<p>A vacuum impact pulverizing mill comprising a housing, a cover sealingly closing said housing, a rotor inside said housing, motor means for driving said rotor, impact targets encompassing said rotor and fixed to said housing, conduit means for delivering granules to be comminuted to said rotor substantially along the axis thereof, means for maintaining the interior of said housing under vacuum, and means protecting the rotor against comminuted particles issuing from the targets.</p> |
