Integrated methane dry fermentation device

Abstract

The invention relates to an integrated methane dry fermentation device and belongs to the field of energy conservation. The device consists of two parts, namely an anaerobic fermentation tank 9 of an inner cylinder and a stack retting tank 5 of an outer cylinder; and the anaerobic fermentation tank 9 of the inner cylinder is wrapped by the stack retting tank 5 of the outer cylinder, wherein the stack retting tank 5 of the outer cylinder consists of an outer cylinder feed port 10, an outer cylinder discharge port 16, a heat insulating layer 15, a thermal reflecting film 26, an outer cylinder filter screen 18, an outer cylinder fermenting liquid outlet 25, a liquid storage box 22, an air draft cover 27, an air cap 3, an air guide pipeline 4, a gravel stratum 17 and a net 11; and the anaerobic fermentation tank 9 of the inner cylinder consists of an inner cylinder feed port 6, an inner cylinder discharge port 19, an air outlet 8, a temperature sensor 12, an inner cylinder filter screen 20, an inner cylinder fermenting liquid outlet 21, a temperature controller 13, a liquid storage box 22, an electric heater 24, a circulating water pump 14, a liquid storage pipeline 1, a one way valve2 and a nozzle 7. The device strengthens a ventilation control system, a liquid stream stirring system and a temperature controlling system of the methane dry fermentation device, has the advantages of reasonable structure, high processing efficiency, energy conservation, convenient subsequent processing, no environmental pollution and the like and is in particular suitable for the methane fermentation of a low-temperature region.

Description

technical field [0001] The invention belongs to the field of energy utilization and environmental protection, and relates to an integrated biogas dry fermentation device, specifically a device that can use the heat generated by the aerobic stacking biomass itself in the process of aerobic fermentation to maintain the inner An integrated biogas dry fermentation device with the temperature required for anaerobic fermentation. Background technique [0002] The dual crises of energy and environment make the development and research of green renewable energy the focus of the work of various countries. According to the estimates of relevant experts, biomass energy will become an important part of the future sustainable energy system. Biomass biogasification technology as an alternative energy source has been applied for decades and various biogas fermentation tank structures have been continuously improved under the potential research of scholars from various countries. Just lik...

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Problems solved by technology

[0004] The object of the present invention is to solve the separation of stacking retting tank and anaerobic fermentation tank, arrange heat absorbing plate in stacking tank and heat exchanger in anaerobic fermentation tank, use biomass itself to produce in the process of aerobic fermentation The method of increasing the fermentation temperature of the biogas digester by using more heat has the problems of large floor area, uncompact structure, complicated heating methods, and insufficient use of heat energy. It provides a method that uses biomass itself in the process of aerobic fermentation. Produced An integrated biogas dry fermentation device that maintains a certain temperature of the biogas digester

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