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US 4,483,625 AGranted
Continuous solid particulate mixer conveyor having variable capacity
AssigneeTechnovators, Inc.
InventorGlen W. Fisher
Life of this patent
Estimating the term…
Abstract
A method and apparatus for increasing the capacity of paddle screw mixer conveyors based on creating a dam of mixed particulate material and another substance at the outlet end of the mixer. A second embodiment uses two counter rotating shafts of paddles to increase mixing efficiency. Methods of grain treatment utilizing the mixer are illustrated.
Claims13
A particulate material mixer-conveyor comprising:
- elongated housing means for receiving a bed of particulate material, said housing means having a particulate material inlet at one end and a particulate material outlet at the other end;
- means operatively associated with said housing means for introducing a second material into said housing for distribution onto a particulate material conveyed in said housing;
- a shaft rotatably mounted in said housing means and extending lengthwise therethrough;
- a plurality of paddles extending outward from said shaft for lifting said particulate material out of said bed, the paddles in proximity to the inlet being mounted at the highest angle relative to the shaft those in proximity to the outlet being mounted at the lowest angle and the remaining paddles being mounted at intermediate angles which gradually increase to a peak in the mid portion of the shaft;
- and
- means for rotating the shaft at a speed such that said particulate material flows off the paddle as it is lifted.
3 more elements
An apparatus for mixing a particulate material with a fluid comprising:
- means forming a housing for receiving a bed of particulate material, said housing having an inlet and an outlet for said particulate material;
- means for adding a fluid material to a particulate material;
- shaft means rotatably mounted in said housing and extending from a location adjacent said inlet to a position adjacent said outlet;
- a plurality of paddles mounted on said shaft means and extending outward therefrom for lifting the material out of said bed and conveying it towards said outlet, said plurality of paddles including a first paddle mounted adjacent said inlet, a second paddle mounted adjacent said outlet and at least two center paddles mounted between said first and second paddles, the pitch angle of said second paddle being less than that of the center paddles and the pitch angle of the center paddles increasing with increasing distance from said first paddle;
- and
- means for rotating said shaft means such that said particulate material flows off the paddles as it is lifted thereby, whereby said fluid is mixed with said particulate material to distribute it uniformly thereon.
3 more elements
Dependencies are inferred from the claim text.