Process and device for molding and drying objects made of fibrou

Details Process and device for molding and drying objects made of fibrou Process and device for molding and drying objects made of fibrou

1982-02-04

1984-05-15

Chin, Peter

Paper making and fiber liberation

Processes and products

Article forming processes

162226, 162375, 162376, 162391, D21J 700

Patent

active

044486405

ABSTRACT:
The invention concerns a process and device for molding and drying objects made of fibrous materials.
The device comprises a cylinder 12, rotating about its longitudinal axis, having a row of porous molds 18 along the lengths of said cylinder's lateral faces, partially dipping into a vat 10 maintained with a constant level of fibrous product paste made of an appropriate liquid, a tubule 20 which connects the interior of the cylinder with a source of vacuum so as to create a partial vacuum therein, said cylinder 12 surrounded on its entire lateral surface free between paste vat 10 and removal device 22 by an arrangement of insulating walls 42 which define with cylinder 12 and vat 10 an enclosure 44 into which opens passageway 46 conveying hot air, said hot air being dwarfed from the extraction of air from a dryer.
The present invention notably applies to the formation of egg boxes.

REFERENCES:
patent: 1848055 (1932-03-01), Chaplin

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