Spiral stirrer unsupported at one end

Details Spiral stirrer unsupported at one end Spiral stirrer unsupported at one end

1978-07-19

1980-02-12

Roberts, Edward L.

Agitating

Stirrer within stationary mixing chamber

Rotatable stirrer

366319, 366320, 366323, B01F 724

Patent

active

041881320

ABSTRACT:
A spiral stirrer unsupported at one end, for mixing and stirring free-flowing solids, especially in continuous gas phase polymerization. The stirrer comprises a plurality of turns formed from hollow profiles. The botton end of the spiral, facing the bottom of the stirred vessel, is attached to a hub seated on a drive shaft. In the vicinity of the transition from the hub to the first turn of the spiral, a distributor spiral is provided to avoid flowless zones in the hub region. Uniform distribution of the gas entering at the bottom of the vessel is also achieved.

REFERENCES:
patent: 1734632 (1929-11-01), Merrill
patent: 3920223 (1975-11-01), Krueger

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