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A semi-continuous ammoniated straw and biogas residue sandwich mixed fermentation device

A semi-continuous ammoniated straw technology, applied in biochemical cleaning devices, special-purpose bioreactors/fermenters, solid-phase fermentation bioreactors, etc., can solve the problems of high requirements, high input costs, and complex structures problems, to achieve the effects of enhanced stability, easy maintenance, and optimized carbon-nitrogen ratio

Active Publication Date: 2022-06-07
SOUTH CHINA AGRI UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this type of process has high requirements on materials, and often requires pretreatment of materials, and the structure is complex and the input cost is high.

Method used

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  • A semi-continuous ammoniated straw and biogas residue sandwich mixed fermentation device
  • A semi-continuous ammoniated straw and biogas residue sandwich mixed fermentation device

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Embodiment Construction

[0042] In order to make the technical solutions of the present invention well understood by those skilled in the art, the present invention will be further described below with reference to the embodiments and accompanying drawings, but the embodiments of the present invention are not limited thereto.

[0043] see Figure 1-2 , The semi-continuous ammoniated straw and biogas residue sandwich mixed fermentation device in this embodiment includes a fermentation tank 1 for anaerobic fermentation of materials, and a biogas slurry for circulating the biogas slurry to the fermentation tank 1 Circulation pipeline 2 and a fermentation feeding device for adding fermentation material into fermentation tank 1, wherein the fermentation material in said fermentation tank 1 is composed of a plurality of fermentation units arranged along the vertical direction, each fermentation unit It includes an ammoniated straw layer 3, a biochar layer 4 and a biogas residue layer 5 arranged from top to ...

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Abstract

The invention discloses a semi-continuous ammoniated straw and biogas residue sandwich mixed fermentation device, which includes a fermentation tank, a biogas slurry circulation pipeline and a fermentation feeding device. The fermentation unit is composed of vertically arranged fermentation units, and each fermentation unit includes an ammoniated straw layer, a biochar layer and a biogas residue layer arranged from top to bottom; Outlet; one end of the biogas slurry circulation pipeline is connected to the liquid outlet of the fermenter, and the other end is connected to the liquid inlet of the fermenter; the fermentation feeding device is connected to the feed port of the fermenter The feed pipe in turn transports biogas residue, biochar and ammoniated straw to the fermentation tank. The mixed fermentation device mixes and ferments biogas residue and ammoniated straw to optimize material ratio and improve gas production efficiency. At the same time, it adopts biogas slurry circulation spraying method, no need for stirring, simple operation and low input cost.

Description

technical field [0001] The invention relates to straw fermentation equipment, in particular to a semi-continuous ammoniated straw and biogas residue sandwich type mixed fermentation device. Background technique [0002] In large agricultural countries, hundreds of millions of tons of agricultural waste are produced every year, and energy utilization is an important way to deal with these agricultural wastes. Today, when the world's energy is depleted, methane is an important alternative energy for petroleum, and anaerobic fermentation technology has received more and more attention. Dry anaerobic fermentation refers to the anaerobic fermentation technology in which the solid content of the fermentation system is greater than 20%. Compared with wet anaerobic fermentation, dry anaerobic fermentation has higher organic load, high solid content of fermented materials, no biogas slurry wastewater is produced in the process of biogas residue fermentation, and there is no problem ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C12M1/107C12M1/16C12M1/02C12M1/00
CPCC12M21/04C12M21/16C12M23/36C12M29/18C12M29/06C12M29/26C12M33/04C12M41/22C12M47/14Y02E50/30
Inventor 林云琴郑浩旻
Owner SOUTH CHINA AGRI UNIV
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