Bottom discharge apparatus for storage vessel

Details Bottom discharge apparatus for storage vessel Bottom discharge apparatus for storage vessel

1989-10-19

1990-12-04

Valenza, Joseph E.

Material or article handling

Static receptacle and means for charging or discharging, or...

Nongravity discharging means

414327, B65G 100

Patent

active

049750135

ABSTRACT:
A bottom discharge system for upright storage vessels adapted to contain solid, particulate and/or fibrous materials includes a flail chain type unloader for dislodging the material to be discharged including a rotary shaft extending upwardly through a central opening in the bottom wall of the storage vessel for moving material out of the lower end portion of the vessel when the shaft is rotated to swing the flail chains. The improved bottom discharge system includes a material outlet opening formed adjacent the bottom wall of the vessel extending radially outwardly of the shaft and a discharge gate that is movable radially inwardly and outwardly of the shaft for closing and opening the outlet. A gate cover structure is spaced above the gate and the bottom wall and has an open end facing the shaft to form a vertically extending segment of the discharge outlet so that when the shaft of the unloader begins to rotate, the material around the shaft is moved radially outwardly into the open end of the gate cover structure causing the material immediately above to flow downwardly for radial discharge and with a minimal tendency of the material to hang up and/or bridge across above the level of the discharge opening stopping the flow.

REFERENCES:
patent: 3485183 (1969-12-01), Floehr
patent: 3509828 (1970-05-01), Fritz
patent: 3710960 (1973-01-01), Stauffer et al.
patent: 4252299 (1981-02-01), LoBue

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