Fermentation tank

Abstract

The invention discloses a fermentation tank which comprises an upper cover, a feeding device, a tank body, an air blasting device, an air extracting device, a stirring device and a discharging device, wherein the upper cover is arranged at the upper end of the tank body, a sealing device is arranged between the upper cover and the tank body, the feeding device is mounted on the upper cover, and the discharging device is arranged at the bottom of the tank body; the upper cover can rotate within a certain angle in a reciprocating manner and / or rotate for 360 degrees; the rotation of the upper cover drives the stirring device to rotate; and a slide track is mounted on the upper cover, and the stirring device can move in the radial direction of the slide track. According to the fermentation tank, rotation of the upper cover and the stirring device as well as the radial motion of the stirring device are driven with smaller power consumption, comprehensive stirring without dead angle of a fermented material in the fermentation tank is achieved under the condition of small power consumption; the discharging device is improved scientifically, with the combination of the improvement of the discharging device, the power consumption is reduced more comprehensively, and power required by discharging is reduced remarkably; and the fermentation tank is particularly suitable for vertical stirring of large-scale and supersized solid material fermentation tanks.

Description

technical field [0001] The present invention relates to a fermenter, more particularly, to a large fermenter. Background technique [0002] Fermentation tanks generally refer to devices used in industry for microbial fermentation. From the perspective of the fermentation content, there are currently two types of fermenters, one is a liquid fermenter and the other is a solid fermenter. Both of them need to use a motor to achieve stirring. Depending on the viscosity of the liquid and the size of the fermenter, the power of the motor required for the stirring of the liquid fermenter ranges from 10 to 100 kilowatts; there is no mature technology for the stirring of the solid fermenter. At present, there are mainly small fermenters and horizontal fermenters. For medium-sized fermentation tanks with type stirring, the driving force of the mixing system is mainly realized by the motor driving the reducer to generate huge torque. Generally speaking, for solid fermentation tanks of ...

AI Technical Summary

Problems solved by technology

In this process, because the mixing system needs to stir and turn the whole tank of materials, the resistance of the mechanical stirrer is relatively large, and the driving power is relatively high, generally 2-4kw / m 3 , the driving motor needs a lot of power, and the reducer is huge and complicated, which is a huge burden for large solid fermentation tanks and is prone to failure

[0006] Especially for large-scale fermentation tanks, such as large-scale fermentation tanks with a tank diameter of 2-20 meters and a height of 2-12 meters, it is difficult to achieve uniform and thorough mixing with the existing mechanical stirring method, and the energy consumption is extremely high. Huge, low production efficiency, prone to failure

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