建筑垃圾资源化移动筛分站的设计研究

发布时间：2018-02-07 12:32

本文关键词： 建筑垃圾移动筛分站方案设计动力学分析多目标优化　出处：《山东大学》2015年硕士论文　论文类型：学位论文

【摘要】：随着我国城市化进程迅速发展,产生了巨大的建筑垃圾,建筑垃圾的传统处理方式存在环境污染大、资源浪费严重等问题,已然不符合节能环保发展政策要求。从国外最新发展现状来看,建筑垃圾资源化是建筑垃圾处理最有效途径,而建筑垃圾资源化装备的落后严重阻碍了我国建筑垃圾资源化进程,所以新型建筑垃圾资源化装备的创新研制成为建筑垃圾资源化绿色发展迫切需要解决的问题。课题介绍了建筑垃圾资源化的相关概念,分析了国内外建筑垃圾资源化的研究现状,指出建筑垃圾资源化缺少专用筛分装备,针对不足研制了适合建筑垃圾资源化的移动筛分装备,并对其结构进行优化。课题研究提出了一种建筑垃圾资源化筛分装备设计及优化的新方法,对提高建筑垃圾骨料处理效率具有重大意义。运用功能分析的方法进行移动筛分站的结构方案设计,结合方案设计原则,确定了两组结构方案；建立了模糊综合评价的数学模型,运用熵权的模糊综合评价法对以上两组结构方案进行评价,最终确定了最佳结构方案(履带式移动筛分站)；同时评价出了各指标的优劣,引出了该装备后续的研究方向,即振动筛的优化设计。通过对振动筛工作原理、运动学、动力学分析,完成了200t/h振动筛的结构性能参数的设计。基于多目标优化方法对振动筛振动特性参数进行优化设计,得到了最佳的振动筛振动特性参数。经过优化后的振动筛功率消耗降低了13%,筛面面积减少了11%,筛箱质量降低了10%。运用ANSYS有限元分析软件,对振动筛箱结构进行模态分析,得到前十阶的固有频率与振型,发现振动筛箱有产生共振的危险,对此展开振动筛箱的结构优化,从而避免共振；由于振动筛存在外激力的作用,对振动筛箱进行谐响应分析,观察筛箱关键节点的幅频曲线,得到在外激力的作用下亦不会发生共振,说明振动筛箱结构优化合理。从而避免了振动筛箱的疲劳破坏,降低了工作噪声,提升了建筑垃圾资源化移动筛分站的综合性能。
[Abstract]:With the rapid development of China's city development, produced a huge construction waste, the traditional way of building waste pollution problems, serious waste of resources, already does not meet the development policy of energy saving and environmental protection requirements. Based on the current development of the latest foreign, building garbage recycling is the most effective way of building garbage disposal, and behind the waste recycling equipment construction has seriously hindered China's construction waste resource process, so the innovation of new building waste resources equipment development become a problem of green construction waste resource development needs to solve urgently. The thesis introduces related concepts of construction waste resources, analyzes the present research situation of building garbage resources at home and abroad. It points out the special screening equipment, lack of construction waste resources, aiming at the shortage of the mobile screening equipment for construction waste recycling is developed, and its structure. For the optimization. The research proposes a new method of screening equipment design and optimization of a construction waste resources, is of great significance to improve the efficiency of building rubbish aggregate processing. Using the method of functional analysis and design scheme of mobile screening station, combined with the design principle, the two groups to determine the structure of the program; established the mathematical model of fuzzy comprehensive evaluation, evaluation of the above two group structure scheme of the fuzzy comprehensive evaluation method using entropy, and ultimately determine the best structure scheme (tracked mobile screening station); at the same time, the evaluation indexes of the advantages and disadvantages, leads to the further research direction of the equipment, the optimization design of the working principle of vibrating screen. The vibration sieve, kinematics, dynamics analysis, completed the design of the structure parameters of 200t/h vibrating screen. Based on the multi-objective optimization method of vibrating screen vibration parameters in the optimization Design, obtained the optimal parameters of the vibration characteristics of vibrating screen. After optimization of the vibration sieve power consumption reduced by 13%, the screen surface area decreased by 11%, reduce the quality of screen box 10%. using finite element analysis software ANSYS, the vibration sieve box structure modal analysis, get the first ten order natural frequency and vibration mode. That is dangerous to produce resonance vibration sieve box, which started to optimize the structure of vibrating screen box, so as to avoid resonance; because of the vibration sieve external excitation force of vibration sieve box by harmonic analysis, amplitude frequency curve of observation screen box of key nodes, in the external force will not resonate note, vibration sieve box structure optimization. In order to avoid the fatigue failure of vibration sieve box, reduce noise, enhance the comprehensive performance of construction waste recycling mobile screening station.

【学位授予单位】：山东大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：X799.1

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