Method for accelerated fermentation and device for mixing a tank content

摘要

The present invention relates to a method for an accelerated fermentation in a fermentation tank 2 with at least a tank cone 2a and a connection flange 4, in particular for beer production. The method comprises the steps: a) sucking in of fermentation fluid M1 from the tank 2 via a first circulation pipe 40 by means of a circulation pump 30; b) inducing of the drive fluid M1 that is now pumped by the circulation pump 30 via a second circulation pipe 50 in a mixing member 10 that is arranged within the tank cone 2a at a height L of 350 mm-1800 mm between the bottom edge of the connection flange 4 and the bottom edge of the mixing member 10; and c) generating of a jet directed upwards and exiting through an outlet opening 18 of the mixing member 10, so that the yeast cells stay for a longer time in suspension in the tank 2 by means of an in such a way improved convective current. The invention relates moreover to a corresponding device.

主权项

1. Device (i) for mixing a content of a tank (2) with at least a tank cone (2a), the tank cone (2a) having a bottom end and a connection flange (4), the device (1) comprising:
a. a mixing member (m) arranged in the tank cone (2a); b. an inlet (20) in fluid communication with the tank (2) proximal the bottom end of the tank cone (2a); c. a circulation pump (30); d. a first circulation pipe (40) connecting the inlet (20) with the circulation pump (30); and e. a second circulation pipe (50) connecting the circulation pump (30) with the mixing member (10), f. the mixing member comprising a drive head (12) that is connected to the second circulation pipe (50) and a mixing chamber (14) surrounding the drive head (12), the mixing chamber (14) having at least one inlet opening (19) opening into the tank, the inlet opening (19) being displaced vertically upward from the inlet (20), whereby the inlet opening (19) draws fluid from the tank (2) and mixes it with the drive fluid flowing through the drive head (12) to form a mixture, the mixing member (m) being arranged within the tank cone (2a) so that a lowermost surface of inlet opening (19) is at a height (L) of at least 350 mm above the bottom end of the tank cone (2a); and g. wherein the mixing member comprises an outlet opening in the tank for ejecting the mixture into the fluid content of the tank.