Dry blending with fibers

Details Dry blending with fibers Dry blending with fibers

1986-02-19

1987-06-02

Simone, Timothy F.

Agitating

Having specified feed means

Agitation of material in feeder or supply reservoir

366 30, 366 76, 366165, 366290, 366292, B01F 1502

Patent

active

046698876

ABSTRACT:
Disclosed is a method and apparatus for avoiding the clumping of fibers having diameters and lengths in certain ranges during dry blending of such fibers into a dry matrix material. The process comprises distributing fibers in a vaporous medium, and transporting fluidized fibers to a mixing zone containing a dry matrix material. Concurrently with stirring and blending of the dry matrix material with fluidized fibers, the fluidized fibers having been separated at least partially from a fluidized vapor are gradually introduced into the mixing zone. This process avoids the phenomena of "balling" that otherwise occurs with certain fibers.

REFERENCES:
patent: 1960030 (1934-05-01), Sackett
patent: 3150215 (1964-09-01), Houghton
patent: 3314398 (1967-04-01), Legourd
patent: 4242841 (1981-01-01), Ushakov et al.
patent: 4427645 (1984-01-01), Frenken et al.
patent: 4501047 (1985-02-01), Wrassman
patent: 4514093 (1985-04-01), Coch et al.
Kevlar Aramid, "Guide to Processing Kevlar Aramid Fiber and Pulp for Friction Products", Dupont.

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