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Straw methane fermentation system

A biogas fermentation and straw technology, which is applied in bioreactor/fermenter combinations, bioreactors/fermenters for specific purposes, gas production bioreactors, etc. Inability to promote large-scale and other problems, to achieve the effect of simplifying the raw material preparation process, improving convenience, and enhancing liquidity

Active Publication Date: 2014-04-23
曲靖促创科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the problem that the straw existing in the existing biogas digester or biogas system needs to be equipped with special crushing equipment, which increases the cost, and the short fibers remaining in the crushed straw will accumulate and entangle after fermentation, and float up to form agglomerates, resulting in biogas The accumulation is hindered, the utilization rate of raw materials is low, and the structure of the existing straw biogas digester is complex, the production or purchase cost is high, the energy consumption is large, the cost is high, and it cannot be promoted on a large scale, and it cannot be used for large and medium-sized straw biogas digesters. To provide a straw biogas fermentation system with straw utilization rate and convenient processing of biogas residue

Method used

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Embodiment 1

[0028] Such as Figure 1-3 As shown, the straw biogas fermentation system described in this embodiment includes a fermentation tank 1, the top of the fermentation tank 1 is provided with a feed pipe 2 and a biogas pipe 3, and the bottom of the fermentation tank 1 is provided with a slagging outlet 4, which is characterized in that The tank body of the fermentation tank 1 is a double-layer three-section cylindrical structure, the outer layer is the outer pool wall 5, and the inner layer is a cylindrical partition with drainage holes 6 evenly distributed on the plate surface and coaxial with the outer pool wall 5. Plate 7, the upper end of the partition 7 extends to the top of the fermentation tank 1, and is connected with it to share the top, a space for containing the biogas slurry is reserved between the inner and outer layers, and the lower end of the partition 7 is provided with a separate bottom plate 8, the bottom plate 8 is connected with the separator 7 in a smooth tran...

Embodiment 2

[0030] Such as Figure 1-3 As shown, the straw biogas fermentation system described in this embodiment includes the components and structures described in Embodiment 1, and also includes a feeding and pressing device, which includes a feeding pipe 2, a conical pressing cover 9, and a tubular connector 10. Anti-splash plug 11, sealing cover 12, and pressing rod 13; feeding pipe 2 is set on the top of fermentation tank 1, and a ring-shaped buckle 14 is arranged inside the bottom end of the pipe extending into fermentation tank 1. The ring-shaped buckle 14 is composed of two rings 141 fixed inside the feed pipe 2. There is a gap between the two rings 141, and the ring 141 on the lower side is provided with two gaps 142; the tubular connector 10 is fixed Installed on the upper end of the truncated conical pressing cover 9, its diameter is smaller than the feed pipe 2, and the upper edge of the tubular connector 10 is symmetrically provided with two stoppers 15, which are connected...

Embodiment 3

[0032] Such as Figure 1-3 As shown, the straw biogas fermentation system described in this embodiment includes the components and structures described in Embodiment 2, and also includes an external circulation device for biogas slurry. The external circulation device for biogas slurry includes a drain pipe 18, and communicates with the drain pipe 18 A liquid storage tank 19, and a biogas slurry return pipe 20 is also arranged on the top of the fermentation tank 1. The biogas slurry in the liquid storage tank 19 is transported to the return tank through a water pump 21, and finally enters the space between the inner and outer layers of the fermentation tank 1 , improve the fluidity of the biogas slurry, and promote the fermentation. The straw biogas fermentation system also includes a slag-liquid separation and recovery device, which is composed of a slag-liquid separation tank 22 and a biogas slurry delivery pipe 23. The slag-liquid separation tank 22 is an inclined container...

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Abstract

The invention provides a straw methane fermentation system and relates to the technical field of microbiological related devices. The straw methane fermentation system mainly structurally comprises a fermentation tank, as well as a feed pipe and a methane pipe which are arranged at the top of the fermentation tank, wherein residue discharge port is formed at the bottom of the fermentation tank; a tank body of the fermentation tank is in a double-layer three-section cylinder structure; with the adoption of a feed and pressing device capable of effectively preventing biogas residue from floating and caking, raw materials such as straws can be put into the fermentation tank directly; and the system overcomes the defects that special breaking equipment is required to be configured for the straws, chopped fibers remained in the broken straws can gather, wind and float to result in caking, so that methane gathering is blocked, and a raw material utilization ratio is low and the like.

Description

technical field [0001] The invention relates to the technical field of biogas fermentation, in particular to a straw biogas fermentation system. Background technique [0002] Biogas can bring many benefits to society and individuals, and it is an important measure to build a new socialist countryside. Biogas can turn waste into wealth and solve the problem of fuel in rural areas; it can protect forest resources. As a high-quality energy source, biogas can solve farmers' daily energy consumption, alleviate rural energy shortages, and reduce farmers' deforestation and vegetation damage. It is beneficial to the protection and restoration of forest resources; it can enhance the stamina of agricultural development. Biogas fertilizers have higher nitrogen, phosphorus, and potassium content than ordinary cesspit pits, and the absorption and utilization rate of crops and the increase in yield can be improved, which can reduce the use of pesticides and chemical fertilizers in agricul...

Claims

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Application Information

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IPC IPC(8): C12M1/107C12M1/36
CPCC12M21/04C12M23/34C12M27/22C12M29/18C12M29/26C12M41/44C12M45/02Y02E50/30
Inventor 袁妩
Owner 曲靖促创科技有限公司
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