A large-scale external drive overall horizontal rotary continuous biogas dry fermentation device and method

Abstract

The invention discloses a large external-driven integral horizontal rotary continuous biogas dry fermentation device and a method thereof, and belongs to the technical field of dry fermentation. The device is fixed on the inner wall of a fermentation tank in a built-in manner, and penetrates through the main spiral wing and parts of a transverse fin of the whole fermentation tank, and the built-in fin rotates with a tank body when the tank body rotates in order to realizes stirring of a fermentation material and the pushing of the fermentation material to a material outlet. A main rotor spiral panel and the inner wall of the tank body are fixed through spaced fixed points, and a certain gap is formed between the spiral panel and the inner wall of the tank body, and guarantees the material mixing, inoculation, fermentation and discharging. The device and the method realize no batch mixing in the whole reaction process and make fermentation more thorough.

Description

technical field [0001] The invention belongs to the technical field of dry fermentation, and in particular relates to a large externally driven integral horizontal rotary continuous biogas dry fermentation device and method. Background technique [0002] "National Medium and Long-Term Science and Technology Development Plan (2006-2020)" focuses on the urgent needs of building a resource-saving and environment-friendly society in response to the outstanding problems that restrict sustainable development such as resource shortages, single energy structures, and environmental degradation in my country , proposed to vigorously strengthen the development and integrated application of a series of technologies such as the combination of clean energy production and environmental protection, to enhance the support and leadership of science and technology for sustainable development, and to cultivate and develop strategies such as clean energy production, resource recycling, and environ...

AI Technical Summary

Problems solved by technology

[0004] Traditional biogas fermentation has the following problems: 1) Biogas fermentation cannot truly achieve continuous production, and most large-scale devices can only use intermittent; 2) Large-scale dry-type fermentation bins are bulky, with high dry matter content and uneven mixing of materials; 3) The time period of biogas fermentation is long, and incomplete fermentation occurs due to the back-mixing of (new and old) materials during stirring; 4) Large-scale biogas fermentation mostly adopts the method of backflow of fermentation liquid for inoculation, which is difficult to do for large amounts of materials 5) According to the theoretical curve of organic biogas fermentation gas production, a large amount of biogas is produced in the early stage of fermentation (especially high-temperature fermentation). Fermentation at the natural temperature of the fermented material

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