Material stirring device and method for anaerobic fermentation to produce biogas

Abstract

The embodiment of the invention discloses a material stirring device and method for producing biogas by anaerobic fermentation, which relates to the field of garbage treatment, including a fermentation tank, a diversion cylinder, a biogas circulation treatment device, a first circulation device and a second circulation device, and a fermentation tank The upper part of the side wall is provided with a first circulation outlet and three first circulation inlets, and the lower part of the side wall of the fermenter is provided with a feed pipe, a second circulation inlet and a second circulation outlet; the liquid inlet of the first circulation device The port is connected with the first circulation outlet, the liquid outlet of the first circulation device is connected with the second circulation inlet; the liquid inlet of the second circulation device is connected with the second circulation outlet, and the liquid outlet of the second circulation device is connected with the first circulation The entrance is connected. Compared with the traditional mechanical stirring device, the stirring device of the embodiment of the present invention is more energy-saving in the stirring process, more stable in operation, can effectively reduce operating costs, is suitable for large-scale fermentation tanks, has more sufficient stirring, and better achieves material homogeneity and heat conduction .

Description

Technical field [0001] Embodiments of the present invention relates to the field of garbage disposal, specifically to an anaerobic fermentation of biogas-producing material stirring device and method. Background [0002] Kitchen waste or other organic waste (kitchen waste, livestock and poultry manure, etc.) is rich in bio-organic matter, and these organic wastes are usually treated in the form of anaerobic fermentation and biogas production at home and abroad, so as to achieve solid waste treatment and generate biomass energy. [0003] The anaerobic fermentation process requires continuous and effective agitation to ensure the homogenization of the material in the anaerobic fermentation tank, promote heat transfer, and ensure that the microorganisms in the fermentation tank are in full contact with the fermented material, as well as the rapid dispersion and final degradation of intermediate process products. [0004] The existing anaerobic fermentation reactor generally uses me...

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Problems solved by technology

[0006] For this reason, the embodiment of the present invention provides a material stirring device and method for anaerobic fermentation to produce biogas, so as to solve the existing anaerobic fermentation reactors that are difficult to produce, difficult to achieve material homogeneity, difficult to maintain, and requirements for materials. High and low biogas yield

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