Dual product sizing machine

Details Dual product sizing machine Dual product sizing machine

2007-04-03

2007-04-03

Miller, Bena (Department: 3725)

Solid material comminution or disintegration

Apparatus

Cooperating comminuting surfaces

C241S158000, C241S235000

Reexamination Certificate

active

10497418

ABSTRACT:
A crushing machine comprises a pair of crushing rolls which are designed to be rotatable towards each other and away from each other. A side plate is provided on the outside of each roll. The crushing rolls have teeth which are shorter than conventional crushing teeth. The teeth on each roll are aligned with each other to provide cavities in which the crushing can occur. Rotation of the crushing rolls towards each other provides a centre sizing action to crush material (e.g. coal) into a larger particle size. Rotation of the crushing rolls away from each other provides a side sizing action to crush material between the roll and the side plates to a smaller particle size. Thus, the machine can crush material into two distinctly different particle sizes without any modification being required to the machine, the dual sizing occurring by reversing the rotation of the rolls.

REFERENCES:
patent: 4971260 (1990-11-01), Taylor
patent: 5312056 (1994-05-01), Kastingschafer et al.
patent: 5823452 (1998-10-01), Ballew et al.
patent: 1301486 (1987-04-01), None
patent: 1447399 (1988-12-01), None
patent: 1766506 (1992-07-01), None

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