Anaerobic digestion tank and assembly method thereof

Abstract

The invention discloses an anaerobic digestion tank and an assembly method thereof and relates to the technical field of anaerobic digestion. The anaerobic digestion tank comprises a double-membrane flexible gas-storage ceiling and a tank body formed by assembling prefabricated plates, wherein the double-membrane flexible gas-storage ceiling is arranged at the top of the tank body; the prefabricated plates include a plurality of general prefabricated plates and at least one special prefabricated plate, wherein each general prefabricated plate is provided with a first passage; each special prefabricated plate is provided with a second passage and a third passage; the first passage is connected with the second passage and the third passage in a run-through manner and a steel cable respectively penetrates through the first passage, the second passage and the third passage, two ends of the steel cable are respectively located at through-hole openings of the left side and the right side of a boss and are anchored by virtue of anchorage devices. By the anaerobic digestion tank, the generation of cracks in the later stage of the application can be prevented and the on-site construction period is shortened; by increasing / decreasing the number of the prefabricated plates, tank bodies with different volumes can be formed; and the anaerobic digestion tank has stronger corrosion resistance and the service life of the anaerobic digestion tank is greatly prolonged.

Description

technical field [0001] The invention relates to the technical field of anaerobic digestion, in particular to an anaerobic digestion tank and an assembly method thereof. Background technique [0002] The adoption of anaerobic fermentation system is the current development trend of domestic resource disposal of sludge and kitchen waste, and it is also the main technical means to solve the environmental pollution caused by the untreated discharge of livestock manure in rural areas of our country. [0003] Early domestic biogas projects mostly used cast-in-place concrete tanks, but the tanks have a long construction period and require a lot of materials, which are prone to cracks. [0004] Later, steel structure tanks such as welded steel tanks and enamel assembled tanks were introduced, but the tank's anti-corrosion ability was weak, and due to the influence of the performance of the steel structure itself, the structural strength was poor and the volume of the tank was restric...

AI Technical Summary

Problems solved by technology

[0003] Early domestic biogas projects mostly used cast-in-place concrete tanks, but the tanks have a long construction period and require a lot of materials, which are prone to cracks

[0004] Later, steel structure tanks such as welded steel tanks and enamel assembled tanks were introduced, but the tank's anti-corrosion ability was weak, and due to the influence of the steel structure itself, the structural strength was poor and the volume of the tank was restricted.

[0005] In the later stage, Lip steel structure coiled tank (Lipu tank) was introduced, but the cost of the tank was high, and due to the influence of the height-to-diameter ratio, the volume of the tank body was difficult to reach 3000m 3 above

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