HIGH EFFICIENCY ONE-TANK BIOGAS PRODUCER BY CONTINUOUS DRY FERMENTATION OF STRAW AND MANURE WASTES AND PROCESS THEREOF

摘要

A high efficiency one-tank biogas producer by continuous dry fermentation of straw and manure wastes and a process for producing biogas. Said biogas generator comprises a producer tank body (2) with an open top and a gas storage cover (1) provided at the top of the tank body (2) and slidably connected to the tank body (2); the tank body (2) is provided with a two-phase isolation device (3) that can be opened or closed, which effectively gathers dry matter in the reaction system below the two-phase isolation device (3) at the lower part of the tank body (2), collects biogas slurry generating methane above the two-phase isolation device (3) and gathers the produced biogas in the gas storage cover (1) for storage. The producer tank body (2) forms, as a whole, a three-segment structure of solid, liquid and gas from bottom to top; after raw materials enter the biogas producer, in one tank, aerobic fermentation, anaerobic fermentation, acid production, hydrogen production and methane production are performed highly efficiently so as to produce biogas and output same for use, or in one tank, anaerobic fermentation, acid production, hydrogen production and methane production are performed highly efficiently so as to produce biogas and output same for use, having a simple apparatus, a simple and convenient process, a stable gas production and a high gas production rate.