Novel low-temperature anaerobic methane fermenting device

Abstract

The invention discloses a novel low-temperature anaerobic methane fermenting device. The novel low-temperature anaerobic methane fermenting device comprises an anaerobic methane fermenting tank, wherein the anaerobic methane fermenting tank is provided with a feeding pipe and a discharge pipe one ends of which extend into the anaerobic methane fermenting tank, wherein one end, positioned outside the anaerobic methane fermenting tank, of the feeding pipe is connected with a feeding pump, one end, positioned outside the anaerobic methane fermenting tank, of the discharge pipe is connected with a discharge pump, an air storage chamber is arranged on the top inside the anaerobic methane fermenting tank, the top of the anaerobic methane fermenting tank is provided with an air exhaust pipe communicating with the air storage chamber, and a thermal insulation layer covers the outer wall of the anaerobic methane fermenting tank. The novel low-temperature anaerobic methane fermenting device further comprises a stirring device, wherein the stirring device comprises a drive part and a stirring part, the drive part is mounted on the bottom of the outer wall of the anaerobic methane fermenting tank, and the stirring part horizontally extends into the anaerobic methane fermenting tank from the bottom of the outer wall of the anaerobic methane fermenting tank. For the novel low-temperature anaerobic methane fermenting device, through heat preservation, the capacity of producing methane through low-temperature fermentation in winter of the northern cold regions is improved, the energy consumption is low, and the novel low-temperature anaerobic methane fermenting device also has the biogas residue desilting function.

Description

technical field [0001] The invention belongs to the field of biogas fermentation, in particular to a novel low-temperature anaerobic biogas fermentation equipment. Background technique [0002] The energy demand of human society is increasing year by year, and the climate change problem caused by the combustion of fossil energy has also been paid attention to by governments all over the world. At present, all human beings are actively exploring the use of new energy and renewable energy, among which biomass energy has always been the source of human dependence. As an important energy source for survival, it ranks fourth in the world's total energy consumption after coal, oil and natural gas. The use of biogas energy plays an important role in the entire biomass energy system. [0003] The global climate change situation is grim. Controlling and reducing greenhouse gas emissions is the main way to curb global warming. Biomass energy is one of the effective means to reduce gre...

AI Technical Summary

Problems solved by technology

However, there are still defects in this type of design, such as unreasonable structural design of the fermentation tank, customization of the heating device in the fermentation tank, uneven heating temperature in the tank, high equipment cost, and low gas production. In the design of the temperature device, the external heat preservation of the fermentation tank is not considered, and the energy consumption in the heating of the tank is large, and the problem of biogas residue dredging is not considered in the design of the tank

This still does not fundamentally solve the problem of heat preservation and temperature increase in winter low-temperature fermentation in the cold northern regions, and it is impossible to achieve efficient energy utilization in the process of tank heating

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