北京理工大学珠海学院 2020 届本科生毕业设计保有量 4000 头猪的养殖场沼气系统摘 要大型生猪养殖场产生的粪尿若直接排放会对环境造成污染，由于沼气发酵产生的沼气具有环保、原料来源广泛等优点，因此对于环境保护及新能源发展有着重要意义，获得了业内的广泛关注。 本设计是以保有量 4000 头猪的养殖场来进行沼气发酵工艺设计。沼气工程的设计包括计算养殖规模、粪便量计算、原料收集、匀化和沉淀等工序。根据养殖场产生的粪便量对沼气工程相关工艺参数进行设计，主要着重于对沼气发酵的工艺流程设计，还介绍了主要工艺选择的原因和工艺配方，并且对工艺参数进行了详细的计算，来确定沼气发酵的相关物料数据与工艺参数，以及对设备进行选型,计算收益，对三废的处理回收等进行了叙述，还画出了工艺的流程图并进行了适当的说明，以及绘制发酵系统车间布局图。关键词：沼气发酵；工艺流程；工艺设计；三废处理北京理工大学珠海学院 2020 届本科生毕业设计Design of a biogas system for a pig farm with 4,000 pigsAbstractDirect discharge of feces and urine from large-scale pig farms will cause environmental pollution. As the biogas produced by biogas fermentation has the advantages of environmental protection and wide source of raw materials, it is of great significance to environmental protection and the development of new energy, and has received extensive attention in the industry. This design is based on a breeding farm of 4000 pigs to conduct biogas fermentation process design. The design of biogas project includes calculation of breeding scale, calculation of manure volume, collection of raw materials, homogenization and precipitation. According to the amount of farm produce waste related process parameters in design of biogas project, mainly focuses on the biogas fermentation process design, also introduced the reason for the choice of main technological formula and process, and the process parameters for the detailed calculation, to determine the related material data a...
