B - Operations – Transporting – 02 – C
Patent
B - Operations, Transporting
02
C
241/91
B02C 17/18 (2006.01) B02C 17/04 (2006.01)
Patent
CA 1065293
ABSTRACT OF THE DISCLOSURE This invention is directed to an improved rotary grinding mill such as a ball mill, rod mill or an auto- genous mill, having an improved arrangement wherein the usual "overflow" or "grate discharge" arrangements are dispensed with in favour of an annular array of lifter segments providing a diaphragm having a radial clearance from the mill shell, being spaced from the inner surface of the mill head to provide an annular entry slot of restricted opening, with a plurality of lifter blades located therein. The improved mill permits the maintenance of favourable flow gradients within the mill while all- owing the carrying of a maximum usable quantity of grind- ing media, despite increases in mill size that militate against the combination. The discharger provides a suffi- cient intake area that large throughputs may be accommodated, whilst avoiding many of the drawbacks associated with grates.
226878
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