Microbial fermentation method and fermentation device integrating ventilation and heat preservation

Abstract

The invention relates to the field of aerobic microbial fermentation technology and equipment, and in particular discloses an aerobic microbial fermentation method and a fermentation device integrating ventilation and heat preservation. The aerobic microbial fermentation method comprises the following steps: forming a fermentation heap from fermentation materials; arranging a ventilation duct at the lower side of the fermentation heap and making the ventilation duct communicate with external air; forming airflow through holes in the material heap and making the airflow through holes communicate with the ventilation duct; and fermenting the materials. According to the fermentation method and the fermentation device provided by the invention, the ventilation duct is arranged firstly, the materials are stack in the upper side of the ventilation duct, the vertical airflow through holes are processed in the materials after the materials are stacked and the airflow through holes communicate with the ventilation duct at the lower sides of the airflow through holes. Solid pipes can be inserted in the airflow through holes, so as to prevent pores from getting blocked in the case that the materials become collapsing in a fermentation process, or instead of adding foreign objects, pores, which communicate with the ventilation duct, can be directly pricked in the material heap. As required, heat-preservation layers can be arranged on facades of the periphery of the fermentation device, and the heat-preservation layers have no influence on the air supply of the fermentation heap; and under the circumstance of not introducing external force, sufficient oxygen replenishment can be guaranteed for the fermentation heap, so as to achieve high-temperature fermentation rapidly and to accelerate a material fermenting speed.

Description

technical field [0001] The invention belongs to the technical field of aerobic microbial fermentation, and in particular relates to a microbial fermentation method and a fermentation device that take into account both ventilation and heat preservation. Background technique [0002] The factors that restrict the fermentation speed of aerobic microorganisms are temperature, oxygen and moisture in addition to material composition and microbial strains. In general fermentation technology, heat preservation and ventilation are contradictory. The material on the surface can get sufficient oxygen, but the heat is dissipated quickly, and high temperature fermentation cannot be achieved. The material on the core part has good heat preservation, but insufficient oxygen. If an insulation layer is added to the periphery of the fermentation pile, it means that the supply of oxygen will be hindered, and the interior will be even more anoxic. Some methods are to add materials to promote v...

AI Technical Summary

Problems solved by technology

Some methods are to add materials to promote ventilation in the fermentation pile, or to increase power and forced ventilation, but the solution effect is not significant

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