System for coupling aerobic composting and dry type anaerobic straw fermentation

A dry anaerobic fermentation and aerobic composting technology is applied in the fields of organic fertilizers, fertilization devices, and preparation of organic fertilizers. simple effect

Active Publication Date: 2015-01-07
NORTHEAST AGRICULTURAL UNIVERSITY
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Problems solved by technology

[0002] With the improvement of people's attention to food safety, the demand for bio-organic fertilizers has increased greatly. At present, bio-organic fertilizers are mainly produced through aerobic composting, and the waste gas discharged during the aerobic composting process contains a large amount of ammonia. , heat and water vapor, directly discharged into the atmosphere not only causes a waste of resources, but also causes serious pollution to the environment

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  • System for coupling aerobic composting and dry type anaerobic straw fermentation

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Embodiment Construction

[0009] Embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings. An aerobic composting and straw dry anaerobic fermentation coupling system includes a biochar waste gas purifier 1, a straw dry anaerobic fermenter 9 and an aerobic composter 14; the biochar waste gas purifier 1 is connected and installed to clean Exhaust gas discharge pipe 19 and waste biological carbon material discharge pipe 18 with waste gas bio-carbon material discharge valve 17; Air pump 16 is communicated with aerobic composter 14 through inlet pipe 15, and on described aerobic composter 14, equipped with The decomposed organic fertilizer discharge pipe 13 of the decomposed organic fertilizer discharge valve 12; the straw dry anaerobic fermenter 9 is connected to the biogas output pipe 5 with the third gas valve 4; the first waste gas equipped with the first gas valve 11 The conveying pipe 6 connects the aerobic composter 14 with the straw dry ana...

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Abstract

The invention provides a system for coupling aerobic composting and dry type anaerobic straw fermentation, and belongs to a biomass fermentation technology. The system comprises a biological carbon waste gas purifier, a dry type anaerobic straw fermenter and an aerobic composting device, wherein the aerobic composting device is communicated with the dry type anaerobic straw fermenter through a first waste gas conveying pipe equipped with a first gas valve; two ends of a biogas residue conveying pipe equipped with a biogas residue discharge valve are connected with a slag discharge port of the dry type anaerobic straw fermenter and a slag inlet of the aerobic composting device respectively; the biogas residue conveying assembly is assembled on the biogas residue conveying pipe; and the dry type anaerobic straw fermenter and the biological carbon waste gas purifier are communicated through a second waste gas conveying pipe equipped with a second gas valve. The system is simple in overall configuration, the technological process is novel and reasonable, the straw fermentation speed is high, the straw degradation rate is high, the production cost is low, and the environment pollution is low.

Description

technical field [0001] The invention belongs to biomass fermentation technology, and mainly relates to a coupling system of aerobic composting and straw dry anaerobic fermentation. Background technique [0002] With the improvement of people's attention to food safety, the demand for bio-organic fertilizers has increased greatly. At present, bio-organic fertilizers are mainly produced through aerobic composting, and the waste gas discharged during the aerobic composting process contains a large amount of ammonia. , heat and water vapor, directly discharged into the atmosphere not only causes waste of resources, but also causes serious pollution to the environment. At the same time, our country is a large agricultural country, which produces a large amount of crop straws every year, and most of these straws are discarded or burned, which not only causes a huge waste of resources but also causes serious pollution to the environment. If these straws are used as raw materials fo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05F17/02C05F9/02
CPCC05F17/957C05F17/979Y02A40/20Y02E50/30Y02W30/40
Inventor 王丽丽王忠江隋超蔡康妮刘欣欣
Owner NORTHEAST AGRICULTURAL UNIVERSITY
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