Feeder for pellet mills

Details Feeder for pellet mills Feeder for pellet mills

A - Human Necessities

23

N

99/191.3

A23N 17/00 (2006.01) B30B 11/20 (2006.01)

Patent

CA 1058008

ABSTRACT OF THE DISCLOSURE A pellet mill for making food pellets from a flour product comprising a vertically arranged driven annular rotary die having radial die openings and a number of extrusion rollers inside this annular die and cooperating with the inner cylindrical wall of the die, which rollers are mounted for rotation in a common roller frame carried by a shaft which is held stationary by shear pins under normal operating conditions. The roller frame supports a number of feed tubes, one for each extrusion roller, which tubes each extend axially through the interior of the annular die between the rollers and near the inner die surface and the flour product is fed to these tubes by screw conveyors adjoining the open ends of the feed tubes with minimum clearance, the other, inner ends of the tubes being closed. Each feed tube has a side opening having the same axial length as the associated roller and having a circumferential width which gradually increases in- wardly whereby the flour product discharged through the side opening of each feed tube is evenly distributed over the length of the roller and the effective width of the annular die.

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