Device for loading containers for particulate materials and the

Details Device for loading containers for particulate materials and the Device for loading containers for particulate materials and the

1986-10-17

1988-09-27

Barefoot, Galen

Conveyors: fluid current

Fluid current conveyor outlet means

Conveyor having plural outlets

406 32, 406109, 406141, 141198, 141 35, 141 46, 141225, B65G 5336

Patent

active

047737972

ABSTRACT:
A device for loading containers that are open or can be vented, containers for fine particulate materials, said device being part of a pneumatic conveyance system, in particular such a system using dense layer transportation, where the said device comprises essentially a tube-shaped casing, a lifting element, a closing element and a lifting rod which connects the lifting and closing elements and enables the distance between these elements to be varied. The combined weight of the part of the lifting element, that can be moved in the axial direction (A), the closing element and the lifting rod is greater than the elastic force of the lifting element but is smaller than the product of the difference between areas (F.sub.H) and (F.sub.M) and the positive pressure in the supply line acting on the lifting element. The distance (h) of the closing element from the lower edge of the casing is smaller than the stroke of the lifting element. The device can be employed on an alumina silo for charging fused salt electrolytic cells used in the production of aluminum, on a plastic powder silo, a cement silo or a quartz silo for foundries.

REFERENCES:
patent: 2668001 (1954-02-01), Harstick
patent: 4082364 (1978-04-01), Krambrock
patent: 4450053 (1984-05-01), Merz et al.
patent: 4529337 (1987-07-01), Hilgraf et al.
patent: 4615648 (1986-10-01), Merz

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