Bottom entry mixer shaft seal system for process vessels

Details Bottom entry mixer shaft seal system for process vessels Bottom entry mixer shaft seal system for process vessels

1991-04-05

1992-01-07

Simone, Timothy F.

Agitating

Stirrer within stationary mixing chamber

Rotatable stirrer

366286, 277 58, 277 64, 277105, 277212FB, B01F 720

Patent

active

050785060

ABSTRACT:
A sealing system for a process vessel of the type having a bottom entry mixer shaft includes a motion seal around an exterior portion of the mixer shaft and a mechanical seal around the mixer shaft at the bottom wall of the vessel. The two seals are interconnected by a cylindrical tubular bellows expansion piece having an upper rigid ring containing a "TEFLON" bushing. A water flushing system is supplied to the bushing and to the motion seal to flush abrasive grit away from the mixer shaft.

REFERENCES:
patent: 2354478 (1944-07-01), Reinhardt
patent: 2773680 (1956-12-01), Zozulin
patent: 3106099 (1963-10-01), Jeffrey
patent: 3606260 (1971-10-01), Rubin
patent: 4378119 (1983-03-01), Luxford
patent: 4384788 (1983-05-01), Lenart
patent: 4732396 (1988-03-01), Brigham
patent: 4765631 (1988-08-01), Kohnen

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