Double reverse helix agitator

Details Double reverse helix agitator Double reverse helix agitator

1985-02-07

1986-12-09

Simone, Timothy F.

Agitating

Stirrer within stationary mixing chamber

Rotatable stirrer

366 81, 366320, 366321, 366327, 422135, 526 65, B01F 700

Patent

active

046277358

ABSTRACT:
The double reverse helix agitator with an internal conveying screw is used in a gas phase olefin polymerization reactor having at least one polymerization section and has helical flights defined by helical blades which are mounted to a shaft, which extend in opposite axial directions and which have approximately the same radius from the axis of rotation of the agitator. The shaft has a spiral screw thread thereon for conveying polymer particles axially by the agitator through a reactor vessel.

REFERENCES:
patent: 992629 (1911-05-01), Akins
patent: 1500061 (1924-07-01), Dimm
patent: 2203672 (1940-06-01), Chester
patent: 3251579 (1966-05-01), Lasar
patent: 3638920 (1972-02-01), Davis
patent: 4187030 (1980-02-01), Godley
patent: 4460278 (1984-07-01), Matsubara et al.

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