A system and method for graded carbonization of livestock and poultry manure
A livestock and poultry manure and carbonization technology, which is applied in the system field of livestock and poultry manure grading carbonization, can solve the problems of low calorific value of pyrolysis gas and difficult treatment and disposal of manure in livestock and poultry farms, so as to improve heating efficiency, ensure the degree of maturation and Quality, achieve the effect of recycling
Active Publication Date: 2020-06-16
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
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[0031] The following is a detailed description of the livestock and poultry manure grading carbonization system in conjunction with the accompanying drawings.
[0032] Such as figure 1 As shown, the system for the graded carbonization of livestock and poultry manure according to the present invention includes: a drying furnace, a low-temperature carbonization furnace, a high-temperature carbonization furnace, a heat exchange cooler and a biochar storage tank arranged in sequence along the conveying direction of the livestock and poultry manure;
[0033] The drying furnace is provided with livestock and poultry feces material inlet, and the drying furnace is also provided with a water vapor outlet, which is connected to a first gas-liquid separation device, and the first gas-liquid separation device is provided with a condensed water outlet and a waste gas outlet. The condensed water outlet is connected to a biological filter, and the waste gas outlet is connected to a biologic...
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The invention belongs to the field of waste biomass recycling and biochar technology, and discloses a grading carbonization system and method for livestock manure. A drying furnace, a low-temperaturecarbonization furnace and a high-temperature carbonization furnace are used for drying and pyrolysis carbonization of the livestock manure, and the drying furnace, the low-temperature carbonization furnace and the high-temperature carbonization furnace are all jacketed furnaces. The pyrolysis gas generated by the high-temperature carbonization furnace is burned by a burner to supply heat to the high-temperature carbonization furnace, and heat is supplied to the low-temperature carbonization furnace and the drying furnace by the waste heat of gas exhausted by a jacket of the high-temperature carbonization furnace. The livestock manure char produced by the high-temperature carbonization furnace is cooled by a heat exchange cooler and then delivered to a livestock manure char storage tank forstorage, and the hot air passing through the heat exchange cooler is delivered to the burner by a draught fan and mixed with the pyrolysis gas for combustion. The system improves the calorific valueof the pyrolysis gas by grading carbonization. Carbonization equipment is heated by using the heat energy generated by the combustion of the pyrolysis gas, so that waste biomass resources are recycled, and the economic benefits are obvious.
Description
technical field [0001] The invention relates to the technical field of waste biomass recycling and biochar, in particular to a system and method for graded carbonization of livestock and poultry manure. Background technique [0002] Biochar pyrolysis technology is to heat-treat biomass materials under the condition of anaerobic or anoxic and temperature below 700°C to generate high value-added biochar products. At present, the research on the preparation of biochar from livestock and poultry manure is attracting widespread attention. Pyrolysis technology converts livestock and poultry manure into biochar, which has the advantages of high-temperature sterilization, reduction of manure volume, production of biomass energy, and preparation of biomass charcoal fertilizer. It is an effective way to dispose and utilize livestock and poultry manure with double benefits for the environment and economy . In agricultural production, the application of livestock and poultry manure ch...
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IPC IPC(8): C10B57/16C10B57/14C10B57/10C10B57/02C10B53/00C02F11/13C02F11/10
CPCC02F11/10C02F11/12C10B53/00C10B57/02C10B57/10C10B57/14C10B57/16Y02P20/129Y02W10/40
Inventor 施赟单胜道庄海峰王群
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY