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Ruminant type straw anaerobic fermentation system and fermentation method

An anaerobic fermentation and ruminant technology, applied in the field of biogas engineering, can solve the problem of high energy consumption, and achieve the effects of high operation efficiency, low production cost and cost reduction.

Pending Publication Date: 2019-03-01
HENAN HI TECH KINGDO IND COMPANY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, mechanical pulverization pretreatment is one of the most expensive steps in the biogasification of high-fiber biomass straw materials. Although the biogas production can be increased by increasing the specific surface area of ​​the raw materials, the required energy consumption is too high

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  • Ruminant type straw anaerobic fermentation system and fermentation method
  • Ruminant type straw anaerobic fermentation system and fermentation method
  • Ruminant type straw anaerobic fermentation system and fermentation method

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Embodiment Construction

[0026] The technical solutions of the present invention will be described in further detail below through specific implementation methods.

[0027] Such as Figure 1-3 As shown, a ruminant straw anaerobic fermentation system includes a mixing tank 4 and a fermentation tank 6, and the bottom outlet of the mixing tank 6 communicates with the feed port 13 of the fermentation tank 6 through a feed pump 5 , the discharge port of the fermenter 6 is connected to the return port of the fermenter 6 through the circulation pump 7, and a pipeline pulverizer is arranged on the pipeline between the circulation pump 7 and the return port 10. In this embodiment, the power of the pipeline pulverizer is 1.1 kW. In other embodiments, a pipeline pulverizer with a power of 0.5-50 kW can be selected according to needs, and a pipeline pulverizer with a power of 1.1-5.5 kW is preferred. machine.

[0028] A method for ruminant straw anaerobic fermentation using the ruminant straw anaerobic fermenta...

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Abstract

The invention provides a ruminant type straw anaerobic fermentation system comprising a mixing tank and a fermenting tank, wherein a bottom discharging port of the mixing tank is communicated with a feeding port of the fermenting tank through a feed pump, a discharging port of the fermenting tank is communicated with a return port of the fermenting tank through a circulation pump, and a pipe typepulverizer is disposed on the pipeline between the circulation pump and the return port. The invention also provides a ruminant type straw anaerobic fermentation method. Straw smashing and liquid material mixing are completed through the feed pump, the circulation pump and the pipe type pulverizer, and the biogas production cost is effectively reduced.

Description

technical field [0001] The invention relates to the field of biogas engineering, in particular to a ruminant straw anaerobic fermentation system and a fermentation method. Background technique [0002] In biogas engineering, in order to obtain a high gas production rate, there must be sufficient contact between the bacteria and the substrate, usually in a fermenter for comprehensive and thorough mixing. If the mixing in the fermenter is not thorough, the material in the fermenter will automatically stratify after a period of time. During this process, bacterial populations tend to aggregate in the lower layers due to their higher density, while decomposed substrates tend to aggregate in the upper layers. In this case, the contact surface is limited to the boundary of the two-layer interface, and little degradation occurs. Therefore, it is necessary to promote contact between the microorganisms and the substrate by agitating the contents of the fermenter. However, excessiv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/107C12M1/02C12P5/02
CPCC12M21/04C12M29/18C12M33/04C12M45/02C12M45/06C12P5/023Y02E50/30
Inventor 张少敏娄源民方云姣
Owner HENAN HI TECH KINGDO IND COMPANY
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