Pipe for pneumatic transport of polymer particles

Details Pipe for pneumatic transport of polymer particles Pipe for pneumatic transport of polymer particles

1991-03-11

1991-10-08

Peters, Jr., Joseph F.

Conveyors: fluid current

Conduit

406195, 138119, B65G 5118

Patent

active

050549669

ABSTRACT:
A pipe for the pneuamtic transport of solid polymer particles has an internal diameter d and constrictions along its length, the distance between consecutive constrictions being between d and 10xd. The pipe can be used to transport polymer particles with the aid of a carrier gas at a gauge pressure of between 10 and 100 kPa, a temperature which is at least 5.degree. C. below the melting point of the polymer and a sufficient velocity to ensure tubulent flow of the mixture of carrier gas and the particles.

REFERENCES:
patent: 3524478 (1970-06-01), Rapp et al.
patent: 3721269 (1973-02-01), Choate et al.
patent: 4230426 (1980-11-01), Avery Jr. et al.

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