Screw conveyor

Details Screw conveyor Screw conveyor

1988-06-24

1990-03-27

Hornsby, Harvey C.

Agitating

Stirrer within stationary mixing chamber

Rotatable stirrer

366301, 366320, 366322, 366326, 366331, 198677, B01F 708

Patent

active

049115588

ABSTRACT:
The screw conveyor has at least one feed and mixing screw having a plurality of vanes extending radially from a shaft arranged in at least one series like a coil or spiral. In particular, the screw conveyor can have at least two substantially equal motorized feed and mixing screws rotating in opposite rotational directions and positioned substantially parallel with each other in a common trough. The screws are located beside each other spaced so that the vanes of one screw engage in the gaps between the vanes of the neighboring screw. To maintain at least as thorough a mixing of bulk materials as was the case heretofore while achieving a reduction in the structural length of the screw conveyor the screws are each provided with more than one helical flight of vanes.

REFERENCES:
patent: 635412 (1899-10-01), Wurster
patent: 2570042 (1951-10-01), West
patent: 2727732 (1955-12-01), Plumb et al.
patent: 2961224 (1960-11-01), Wright
patent: 3090606 (1963-05-01), Burnet
patent: 3116745 (1964-01-01), Burning
patent: 3638920 (1970-01-01), Davis
patent: 3719506 (1973-03-01), Ehrgott
patent: 3901483 (1975-08-01), Lasar
patent: 3941357 (1976-03-01), Wurtz
Japanese Patent Abstract M-181 of Dec. 22, 1982, vol. 6, No. 263.

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