Method for transferring short fibers

Details Method for transferring short fibers Method for transferring short fibers

1989-01-19

1990-11-13

Chambers, A. Michael

Fluid handling

Processes

Affecting flow by the addition of material or energy

137813, 137828, F15C 116

Patent

active

049694812

ABSTRACT:
The present invention provides a method for transferring agglomerative short fibers such as natural fibers, ceramic fibers or metals, by means of a Coanda spiral flow produced by feeding a pressurized fluid. In this fluid-transfer, short fibers can be smoothly transferred with an orientation while causing swelling and dissociation of agglomerates thereof. The defects inevitable in the conventional transfer under turbulent flow conditions such as adherence of fibers to the inner wall of the pipe, agglomeration and breakage of whiskers are completely solved. High-speed oriented-transfer at a speed of several to 100 m/second is possible by means of the Coanda spiral flow.

REFERENCES:
patent: 4206783 (1980-06-01), Brombach
patent: 4612959 (1986-09-01), Costello
patent: 4721126 (1988-01-01), Horii
patent: 4817863 (1989-04-01), Bragg et al.

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