Industrial gas biological fermentation device

Abstract

Embodiments of the invention provide an industrial gas biological fermentation device. The biological fermentation device includes a fermentation tank; the fermentation tank includes a descending pipe, a spraying device, a first pipeline and a first gas-liquid separation device, wherein the spraying device is arranged on the top of the fermentation tank, and one end of the first pipeline communicates with the descending pipe; the first gas-liquid separation device includes a first inlet, a first outlet, a second outlet and a spraying pump; the first inlet communicates with the other end of thefirst pipeline; the second outlet communicates with the top of the fermentation tank; and the inlet of the spraying pump communicates with the first outlet, and the outlet of the spraying pump communicates with the spraying device. Thus, the technical problems in the prior art of the standard-exceeding vibration of pumps and pipelines caused by the containing of gas in fermentation broth and therising failure rates of mechanical seal and welded joint of the pipelines during the operation of fermentation systems can be solved; and the technical effects of performing gas-liquid separation on the fermentation broth flowing through the pumps, reducing the vibration of the pumps and pipelines and decreasing the failure rates of mechanical seal and welded joint of the pipelines can be achieved.

Description

technical field [0001] The invention relates to the technical field of biological fermentation, in particular to an industrial gas biological fermentation device. Background technique [0002] The production of fuel ethanol by industrial gas biological fermentation is an emerging high-tech production process. This process uses industrial gas as raw material, adopts biological fermentation, and undergoes pretreatment, fermentation, distillation, dehydration and other processes to produce fuel ethanol. Fermentation The liquid contains 13-19% of entrained gas, and the gas has reached a saturated dissolved state under operating conditions. [0003] However, the inventors of the present application have found that the above-mentioned prior art has at least the following technical problems: [0004] At present, there is no better gas-liquid separation system device containing saturated gas in the fermented liquid. The gas in the fermented liquid is composed of (volume fraction) 5...

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Problems solved by technology

[0005] The invention provides an industrial gas biological fermentation device, which solves the problems in the prior art that during the operation of the fermentation system, the fermentation liquid contains gas, causing the vibration of the pump and the pipeline to exceed the standard, and the failure rate of the mechanical seal and the welding joint of the pipeline increases. Technical problems, achieved the technical effect of gas-liquid separation of the fermentation liquid flowing through the pump, reducing the vibration of the pump and pipeline, and reducing the failure rate of mechanical seals and welding joints of pipelines

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