Biogas digester

Abstract

The invention discloses a biogas digester which comprises a biogas digester body. The biogas digester body is of an ellipsoid shape; a fermenting room is formed in an inner hollow structure of the biogas digester body; the top of the biogas digester body is provided with a movable cover in fit with the shape and the size of the top of the biogas digester body; the movable cover is provided with a gas conduit; the movable cover comprises a biogas cover and a water sealing device; the water sealing device is in sealing contact with a biogas digester opening; a feed inlet and a discharge port are sequentially formed along the flowing direction of materials; the feed inlet is connected with the biogas digester body by a feeding pipe; the discharge port is connected with the biogas digester body by a discharge pipe. According to the invention, the wall of the biogas digester body is provided with the feed inlet and the discharge port, so that residues in the digester can be automatically cleaned up and trouble of manually cleaning the digester at regular intervals is avoided; reinforcing ribs are also uniformly distributed on the biogas digester body, so that the integral structure of the biogas digester is reinforced; moreover, sealing is formed round the biogas digester opening and a fermenting tank by the water sealing device, so that the sealing performance is good and the gas generation rate is high.

Description

technical field [0001] The invention relates to the technical field of biogas, in particular to a biogas digester. Background technique [0002] Biogas can be used not only as energy for lighting, but also as gas energy for cooking. Since the main raw material for generating biogas comes from crops, it can greatly reduce the consumption of forest resources and coal-fired resources. Therefore, biogas is a popular energy-saving technology that has been popularized and applied in recent years and is widely used in rural areas. [0003] Existing biogas digesters use traditional building materials such as bricks, sand, lime, and cement. Although the method of building a biogas digester is relatively simple, the daily maintenance requirements after completion are very high, and there are many faults during use, for example, leakage Gas is the most common fault in the use of biogas digesters. Often due to poor sealing between the mouth of the biogas digester and the cover, the bio...

AI Technical Summary

Problems solved by technology

[0003] Existing biogas digesters use traditional building materials such as bricks, sand, lime, and cement. Although the method of building a biogas digester is relatively simple, the daily maintenance requirements after completion are very high, and there are many faults during use, for example, leakage Gas is the most common fault in the use of biogas digesters. Often due to poor sealing between the mouth of the biogas digester and the cover, the biogas leaks, resulting in the failure of normal gas supply.

In addition, the existing biogas digesters still have the defect of requiring artificial and regular slag removal, which is dangerous and time-consuming

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