Solid material comminution or disintegration – Apparatus – With separation or classification of material
Patent
1980-09-22
1982-12-28
McQuade, John
Solid material comminution or disintegration
Apparatus
With separation or classification of material
241171, 241182, B02C 1718
Patent
active
043657630
ABSTRACT:
In a grinding mill hollow drum structure a novel fastening assembly is provided for securing a discharge lifter between grates and a discharge head portion of the drum structure. The fastening assembly includes a hollow cantilever post having a body and a securing stem portion, being threaded or under tension or conical or the like, that adjoins the body at one end thereof and is accessible from outside the structure to receive a nut for releasably securing and adjusting the post in fixed relation to the discharge head portion. The post, once secured, provides a transverse load bearing capability for supporting the lifter, the wear plates and grates. A retaining structure surrounds the body of the post and cooperates with the discharge lifter to secure the lifter to the body. An inner tensioning bolt having a fixed head is provided that extends through a hollow portion of the cantilever post having a securing nut that is accessible from outside the drum structure to hold the discharge grates or discharge wear plates in pressing relation against the discharge lifter, the bolt being inwardly releasable for withdrawal into the drum.
REFERENCES:
patent: 1139651 (1915-05-01), Easton
patent: 1183431 (1916-05-01), Carlson
patent: 2181943 (1939-12-01), Kennedy
patent: 3599882 (1971-08-01), Sabaski et al.
patent: 3604637 (1971-09-01), Sabaski
patent: 3844492 (1974-10-01), Smallwood et al.
Dominion Engineering Works Limited
Eckersley R. A.
McQuade John
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