Apparatus for conveying and discharging bulk materials

Details Apparatus for conveying and discharging bulk materials Apparatus for conveying and discharging bulk materials

1992-11-05

1994-04-05

Mitchell, David M.

Conveyors: fluid current

With diverse power-driven conveyor

Rotary

B65G 5308

Patent

active

052998886

ABSTRACT:
An apparatus and method for conveying and discharging bulk material including a material feed hopper, a screw conveyor, a transition area and a rotary air valve. The feed hopper is divided by a diverter which distributes feed material into the two ends of a trough having a converging screw conveyor. The converging screw conveyor distributes feed material into a transitional holding area for feeding into a rotary air valve. The rotary air valve has a helical vane design and is equipped with at least one cutting knife to control the amount of bulk material distributed in the pockets between the vanes. A blower provides pressurized air flow into and through the rotary air valve. The pressurized air carries the bulk material from the rotary valve through a conduit to discharge the bulk material at a remote distance.

REFERENCES:
patent: 476608 (1892-06-01), Calkins
patent: 1616547 (1927-02-01), Pontoppidan
patent: 2232545 (1941-02-01), Lum
patent: 2890079 (1959-06-01), Stumpf
patent: 3291536 (1966-12-01), Smoot
patent: 4363571 (1982-12-01), Jackson et al.
patent: 4611921 (1986-09-01), Patel
patent: 4850515 (1989-07-01), Cleland

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