堆肥滚筒筛分机开发研究

发布时间：2018-02-22 18:04

本文关键词： 畜禽粪便好氧堆肥滚筒筛关键部件开发设计　出处：《中国农业机械化科学研究院》2017年硕士论文　论文类型：学位论文

【摘要】：好氧堆肥发酵作为一种畜禽粪便处理方法,具有安全、高效、环保的优点,得到了广泛的推广应用,其生产过程的机械化、专业化程度也不断提高,因此对配套的生产设备的专用性提出了相应的要求。本文设计了一种堆肥滚筒筛分机,用于堆肥生产过程中的筛分操作,具有一定的实用价值和理论意义。通过对物料在滚筒中的运动状态和透筛过程进行分析,得到了一系列与滚筒筛分机结构参数和工艺参数相关的定量和定性的结论,根据这些结论并结合堆肥生产过程的相关特点和要求,对堆肥滚筒筛分机进行了设计计算。堆肥滚筒筛分机主要处理的物料为畜禽粪便的堆肥产物,其物料容重约为0.7 t/m3,要求滚筒筛分机的处理能力为5 t/h。对滚筒建立数学模型,计算得到滚筒的直径、长度和旋转速度等,并对应设计了适用于该滚筒筛分机的传动系统,同时对滚筒筛分机的机架及外罩部分、托轮和挡轮部分、进出料口等进行了设计。使用有限元分析软件对传动系统中的关键部件—一链轮进行了校核分析,确定了其最终设计参数。使用离散单元法软件对影响滚筒筛分机工作效果的因素进行了模拟试验分析,根据试验结果对原有设计参数进行了优化。对设备进行样机试制,并对样机进行了现场试验,试验结果表明,本次设计的堆肥滚筒筛分机运行平稳、工作状况正常,符合设计使用要求。
[Abstract]:Aerobic compost fermentation, as a kind of animal manure treatment method, has the advantages of safety, high efficiency and environmental protection, and has been widely used. The mechanization and specialization of the production process have also been continuously improved. Therefore, the corresponding requirements for the specificity of supporting production equipment are put forward. In this paper, a composting drum sieving machine is designed for screening operation in composting production. It has certain practical value and theoretical significance. By analyzing the moving state and the screening process of materials in the drum, a series of quantitative and qualitative conclusions related to the structural and technological parameters of the drum sieving machine are obtained. According to these conclusions and combined with the characteristics and requirements of composting production, the composting drum sieving machine was designed and calculated. The main material treated by the composting drum sieving machine was the composting product of livestock and poultry manure. The bulk density of the material is about 0.7 t / m ~ 3, and the processing capacity of the drum sieving machine is required to be 5 t / h. The mathematical model of the drum is established, and the diameter, length and rotating speed of the drum are calculated, and the transmission system suitable for the drum sieving machine is designed. At the same time, the frame and outer part of the drum sieving machine, the supporting wheel and the retaining wheel part, the inlet and outlet etc are designed. The key component of the transmission system, a sprocket, is checked and analyzed by using the finite element analysis software. The final design parameters are determined. The factors affecting the working effect of the drum sieve machine are simulated and analyzed by using the discrete element method software. The original design parameters are optimized according to the test results, and the prototype of the equipment is trial-produced. The field test results show that the composting drum sieving machine is running smoothly and the working condition is normal and meets the requirements of the design.
【学位授予单位】：中国农业机械化科学研究院
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：S224.2

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