Continuous dry-type methane fermenting device and methane preparing method

Abstract

The invention provides a continuous dry-type methane fermenting device and a methane preparing method and belongs to the field of the resource utilization of organic solid wastes. The continuous dry-type methane fermenting device comprises a feeding device and a charging device; the feeding device is connected with the feeding device; a water tank is mounted at the top of a tank body; a bottom surface and a vertical surface of a concrete membrane tank reactor is formed by the tank body; the top surface of the concrete membrane tank reactor is formed by a flexible membrane; a first safety barrel and a second safety barrel are respectively arranged at two ends of the concrete membrane tank reactor; the two ends are connected with the charging device and a discharging device; a drum stirrer is connected with a hydraulic motor; the hydraulic motor is connected with a hydraulic pump by a hydraulic oil pipe; the drum is arranged in the concrete membrane tank reactor, and a guiding blade anda raising plate are mounted in the drum; an air outlet is formed on the wall of the tank body, and the bottom part is paved with terrestrial heat tubes; a methane boiler and a solar water heater are connected with the terrestrial heat tube by a water pipe; and a second window is arranged on the second safety barrel. The continuous dry-type methane fermenting device provided by the invention maintains strain activity and increases material heat and mass transferring effect, can achieve continuous fermentation to generate methane and has higher fermenting efficiency and gas generation rate.

Description

Technical field [0001] The invention belongs to the field of organic solid waste resource utilization, and in particular relates to a continuous dry-method biogas fermentation equipment and a specific step method for preparing biogas by adopting this method. Background technique [0002] my country's annual output of agricultural solid waste is huge, causing serious environmental pollution. At the same time, it faces a shortage of primary energy in rural areas. The application of biogas fermentation technology to treat organic solid wastes can convert organic solid wastes into clean energy biogas and green bio-organic fertilizers, and improve the current situation of energy shortage. Biogas and bio-fertilizer can create good economic benefits for users. The use of bio-organic fertilizers It can also improve the quality of agricultural products, and promote farmers to increase their production and income, with significant comprehensive benefits. [0003] According to the solid cont...

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Problems solved by technology

[0005] The technical problem to be solved by the present invention is: to overcome the problem that the dry biogas fermentation method adopts the intermittent fermentation method in the prior art, develop a continuous dry biogas fermentation equipment, and use the equipment to produce biogas. Stirring of materials in dry biogas fermentation and sealing of gas in and out of continuous dry fermentation

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