| 摘要 |
An internal orbit, variable ratio, continuous centrifugal grinding mill system (11) is disclosed. The centrifugal grinding mill (11) comprises a supporting framework (14), a main rotor (5), a grinding chamber (6), a main rotor drive system, a secondary rotor drive system, a grinding chamber in-feed system (7) and a grinding chamber discharge system (23). The main rotor (5) is supported within bearing arrangements (18, 19) by the supporting framework. The grinding chamber is a secondary, substantially tubular rotor supported and carried by the main rotor (5) to form a rotor assembly and has an axis of rotation substantially parallel to the axis of rotation of the main rotor. The axis of rotation of the main rotor (5) lies within the locus formed by the outer extremity of the secondary rotor as it rotates about its axis. The main rotor (5) and the secondary rotor can rotate continuously and independently about their respective axes of rotation. The main rotor drive system powers the rotation of the main rotor (5) and the secondary rotor drive system powers the rotation of the secondary rotor independently of the rotation of the main rotor (5). At least one in-feed opening in one end of the secondary rotor allows grinding furnish and/or grinding media to be admitted to the secondary rotor. At least one discharge port in the secondary rotor allows ground material to be extracted from the secondary rotor. The centrifugal grinding mill (11) is intended to be operated in a continuous manner. Internal profiling of the grinding chamber (6) is also disclosed to alter the grinding energy density as in different regions of the chamber (6).
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