Fermenter comprising an agitator

Details Fermenter comprising an agitator Fermenter comprising an agitator

C - Chemistry, Metallurgy

02

F

C02F 3/28 (2006.01) B01F 7/04 (2006.01) B01F 15/00 (2006.01) C10L 3/00 (2006.01) C05F 17/02 (2006.01) C12M 1/06 (2006.01)

Patent

CA 2585479

The invention relates to a fermenter which comprises an agitator. A problem associated with large, horizontal fermenters comprising an agitator is that the screw of the agitator caves in despite reinforcing constructions, thereby destroying the fermenter (1). In order to solve this problem, the shaft (10) of the agitator that extends longitudinally through the fermenter (1) and that is received on the fermenter ends (4, 6) is configured as a closed hollow element that is filled with gas or air. The pressure (P1) in the interior (14) of the hollow shaft (10) is monitored by a pressure-measuring element (16-18), thereby preventing liquid from entering the shaft, causing the shaft (10) to cave in and eventually destroying the fermenter.

Lors de la conception de grands fermenteurs horizontaux comprenant un mélangeur, on rencontre le problème suivant : l'arbre du mélangeur se déforme malgré une construction consolidée, ce qui détruit les fermenteurs (1). Pour y remédier, l'arbre (10) du mélangeur, qui traverse le fermenteur (1) dans sa direction longitudinale et qui est monté à l'extrémité du fermenteur (4,6), doit être conçu comme un élément creux et fermé, rempli de gaz ou d'air. La pression (P1) qui règne à l'intérieur (14) de l'arbre creux (10) est surveillée à l'aide d'un organe mesureur de pression (16-18) pour garantir l'absence d'afflux de liquide, ce qui déformerait l'arbre (10) et donc détruirait le fermenteur.

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