发明授权
US4807815A Air-jet mill and associated pregrinding apparatus for comminuating solid materials 失效
用于粉碎固体材料的喷气磨机和相关的预研磨设备

Air-jet mill and associated pregrinding apparatus for comminuating solid
materials
摘要:
An air-jet mill provided with pregrinding chambers and inner sizer suitable for fine grinding (below 10 .mu.), for cryogenic grinding and also for surface treatment during grinding of hard, elastic and/or thermoplastic materials.During operation there are no moving components to be exposed to heavy wear, and an inner sizer, forming an integral part of the grinding space, uses the energy left after grinding in the system to enable a sharp sizing or separation of fine fractions.
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