Method for forming a web of material

Details Method for forming a web of material Method for forming a web of material

1978-03-09

1980-04-08

White, Robert F.

Plastic and nonmetallic article shaping or treating: processes

Carbonizing to form article

Agglomeration or accretion

264121, B29B 500

Patent

active

041972678

ABSTRACT:
A web is formed from particulate material, for example, wood fibers, by depositing the fibers on a conveyor surface in a distribution chamber. The particulate material is introduced into the distribution chamber at its top by a carrier air stream which is caused to oscillate across the surface by impulses from separate control blow boxes on the opposite sides of the stream. The particulate material is thoroughly dispersed in the air stream by passage through a transition zone where the carrier air stream is deflected into a zigzag path and its flow velocity is reduced. The effect of static electricity on the particles in the carrier stream is reduced by lining the transition zone with nonconductive material and providing ionizing devices in the blow boxes for the air flow passing through the control boxes, or in the chamber adjacent the boxes.

REFERENCES:
patent: 3150215 (1964-09-01), Houghton
patent: 3158668 (1964-11-01), Johnson
patent: 3777231 (1973-12-01), Guschin
patent: 4099296 (1978-07-01), Gustavsson

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