Annular kiln type dry type biogas fermentation method

Abstract

The invention discloses an annular kiln type dry type biogas fermentation method which comprises the following steps: straws are smashed, livestock manure is added, biogas slurry, the weight of which is 50% of that of the straws, is added, the straws, the livestock manure and the biogas slurry are mixed uniformly, fermentation rooms are filled with the mixture sequentially, a discharge door is closed before filling, the material is fed from a feed inlet formed in the upper part through a conveying belt, material with the thickness of about 30 cm is coated on the bottom layers of the fermentation rooms firstly; gas collecting tubes are arranged, the feed inlet is closed by an elastic membrane after each fermentation room is fully filled with the gas collecting tubes, so that each fermentation room and a gas storage bag are closed; biogas fermentation can be performed, other annular kiln type fermentation rooms are fed with material according to the same steps, the feed inlet is opened after the fermentation is completed, material is discharged from the discharge door, the gas collecting tubes are disassembled while the material is discharged, feeding, fermentation and discharging are sequentially performed on 4 to 6 fermentation rooms; the gas storage bag can supply air all the time. The annular kiln type dry type biogas fermentation method can completely solve the pollution problem of the livestock manure in a livestock farm and straws, achieve agricultural waste resource utilization, enable all agricultural wastes to be translated into clean energy and pollution-free organic fertilizers, and achieve agricultural waste zero discharge.

Description

technical field [0001] The invention relates to a fermentation method, in particular to a wheel kiln biogas dry fermentation method, which belongs to the fields of agricultural environmental protection and biomass energy utilization. Background technique [0002] At present, with the emphasis on agricultural environmental protection and resource utilization from all walks of life, the fermentation of agricultural waste and the construction of biogas digesters are increasing day by day. However, most of the current fermentation and biogas digesters are independent, which cannot be used for cyclic operation and continuous production, and there is a problem of slow fermentation speed. Contents of the invention [0003] One of the objectives of the present invention is to provide a wheel kiln type biogas dry fermentation method capable of cyclic operation, continuous production, and fast fermentation speed. [0004] The present invention is achieved like this: [0005] A whe...

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Problems solved by technology

However, most of the current fermentation and biogas digesters are independent, which cannot be use

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