Vertical continuous dry fermentation device

Abstract

A vertical continuous dry fermentation device includes a stirring temperature-rising adjustment tank, multi-point distributed feeding, a vertical continuous dry fermentation reactor and a clinker reflux mixing process to form a process for producing biogas from organic waste with high solid concentration The method and the fermentation system thereof can realize rapid start-up of the biogas project, no stirring is required in the anaerobic fermentation tank, energy and water are saved, the discharge of biogas slurry and residue is reduced, the environment is protected, and the cost is reduced.

Description

Technical field [0001] The invention relates to a fermentation device, in particular to a vertical continuous dry fermentation device. Background technique [0002] The large amount of biogas slurry produced by wet fermentation technology and the difficulty of digestion are the bottlenecks of its development. In addition, according to engineering experience and theoretical calculations, maintaining the wet fermentation temperature needs to consume about 30% of the system's capacity, and even 45% in winter in cold northern regions, which greatly limits the promotion of anaerobic fermentation technology in cold northern regions. In addition, when the source of garbage is complicated, it takes manpower and equipment to pick out debris such as wood and sand in municipal solid waste to prevent pipeline blockage and damage to fluid conveying equipment and agitators in reactors. Dry anaerobic fermentation technology means that the mass fraction of TS in the reaction system reaches...

AI Technical Summary

Problems solved by technology

However, due to the late development of dry fermentation technology and the difficulty of system control compared with wet fermentation, the research and development of anaerobic dry fermentation equipment is a key link in the dry fermentation process

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