Solar de-foaming biogas digester

Abstract

The invention discloses a solar energy defoaming biogas digester, which comprises a gas storage chamber and a gas production chamber, a feed pipe and an exhaust pipe connected with the gas storage chamber, and a stirrer, and a circular through hole is opened on the outer wall of the gas storage chamber , the agitator extends into the gas chamber, the stirring shaft is provided with stirring blades, the gas generating chamber is provided with a discharge pipe, the outlet of the discharge pipe is provided with a discharge cover, and the top of the gas storage chamber is fixedly connected with a solar energy heat collector; the fermentation chamber is connected with a clapboard, the bottom wall of the fermentation chamber is fixedly connected with a motor and a reducer, the motor is connected with the reducer, and the reducer is connected with paddles; the stirring shaft is a hollow stirring shaft, and the stirring blade It is a hollow stirring blade, the hollow stirring shaft and the hollow stirring blade are provided with defoaming holes, and the top of the stirring shaft is connected with a vacuum defoamer. The invention can maintain a good temperature in the gas production chamber by setting the solar heat collector, thereby greatly increasing the gas production of the methane pool.

Description

technical field [0001] The invention relates to the technical field of biogas, in particular to a solar defoaming biogas digester. Background technique [0002] Biogas is a mixture of various gases, the main component of which is methane. People often say that biogas fermentation refers to the process in which biogas bacteria decompose organic matter and produce biogas. According to the role of various bacteria in the biogas fermentation process, biogas bacteria can be divided into two categories. The first type of bacteria is called decomposing bacteria, and its function is to decompose complex organic matter into simple organic matter and carbon dioxide. Among them, there are bacteria that specialize in decomposing cellulose, called cellulolytic bacteria; bacteria that specialize in breaking down protein, called proteolytic bacteria; bacteria that specialize in breaking down fat, called lipolytic bacteria; the second type of bacteria is called methane-containing bacter...

AI Technical Summary

Problems solved by technology

Although hydraulic biogas digesters have the above advantages, there are also many disadvantages: First, due to repeated changes in air pressure, this has a negative impact on the strength of the pool body and the stability and improvement of the combustion efficiency of lamps and stoves.

But this patent document is because there is no stirring device in the pool, and the scum in the pool is easy to crust and is difficult to break, so the utilization rate of fermentation raw materials is not high, and the gas production rate is very low. The side walls of the pressure chamber are connected, and the discharge port is exposed to the air, so the ammonium nitrogen in the biogas is very volatile, which is not conducive to maintaining the temperature of the biogas digester, and further affects the gas production of the biogas digester.

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