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Title:
VENTILATION AGITATION FERMENTATION TANK
Document Type and Number:
Japanese Patent JP2007136250
Kind Code:
A
Abstract:

To provide a ventilation agitation fermentation tank capable of stably performing ventilation agitation from a low amount of liquid and enhancing a fermentation efficiency.

In the ventilation agitation fermentation tank 10, a fermentation liquid S fills a tank body 11 provided with a cylindrical barrel part 12 and a lid part 13 and a bottom part 15 positioned at the upper and lower side of the barrel part 12 and the fermentation liquid S is ventilated/agitated by rotation of a self-suction type stirring impeller 18 arranged at a center of the bottom part 15 of the tank body 11. A reverse truncated cone-like inclination part 14 is continuously formed between a lower opening 12b of the barrel part 12 of the tank body 11 and an outer peripheral part 15b of the bottom part 15. An apex angle θ of an original cone of the reverse truncated cone-like inclination part 14 is set, for example, to 90°.


Inventors:
Nakayama, Yohei
Kasuya, Toru
Application Number:
JP2005000329081
Publication Date:
June 07, 2007
Filing Date:
November 14, 2005
Export Citation:
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Assignee:
MITSUKAN GROUP HONSHA:KK
MIZKAN SANMI:KK
International Classes:
B01F7/16; B01F3/04; C12J1/10
Domestic Patent References:
1978-08-03
1993-07-02
Attorney, Agent or Firm:
山口 哲夫