摘要随着淡水资源的紧缺，对污泥脱水处理技术和效果的要求愈来愈高。卧式螺旋卸料沉降离心机是一种典型的污泥脱水用离心机，它是使用先进的固液分离方法而设计开发的一种先进机器，具有众多的优点。87247
本课题先对现有的卧螺离心机进行仿真，然后对卧螺离心机的结构和静力特性进行分析，优化其结构，以改善其不足。本课题的研究方法是，对现有卧螺离心机进行结构优化，利用ProE建立三维模型，然后和ANSYS建立连接，进行转子的静力学分析。之后结合有限元分析结果，将卧螺离心机转子的结构进行优化，来扩大处理量，改善分离效果。其次，将卧螺离心机用三维软件ProE来仿真。最后，提出改进污泥固液混合物脱水流程方案。利用不一样的参数进行ANSYS求解，最终采用最好的方案。
优化后的卧螺离心机，污泥混合物经过沉降接着进入转筒的锥形区干燥，最后进入筛网区进行再次的脱水处理。这种优化的结构不仅简单的将普通卧螺离心机和过滤式筛网离心机的优点进行了结合，而且进一步扩大了处理量，改善了分离效果，增大筛网段直径，解决了之前离心机容易堵塞的问题，极大的提高了离心机的工作性能。
毕业论文关键词：污泥脱水；卧式螺旋卸料沉降离心机；螺旋转子；结构优化；脱水流程
Abstract As the shortage of water resources,for sludge dewatering effect of processing technology and the demand is higher and higher。Horizontal decanter centrifug is a kind of typical centrifuge for sludge dewatering。It is a kind of advanced equipment that designde and developmented by using the advanced solid-liquid separation technology 。It has kind of advantages。
This task lies to the existing horizontal decanter centrifug to research。Then, this task lies to analyse in structure and static characteristics of horizontal decanter centrifug in-depenth to optimize its structure and improve its shortages。The way of researching this task is for structural optimization aiming at some problems of it。Using of ProE software to establish the centrifuge rotor 3D model, then seting up a connection between ProE and ANSYS softwares for static force analysis。 After ,combining the finite element analysis results to optimize the structure of spiral rotor of horizontal decanter centrifug to expand handing capacity and improve the separation effect 。 Second, using ProE software to process three-dimensional simulation demonstration of the optimized horizontal decanter centrifuge 。Finally, puting forword the scheme of improving the solid-liquid mixture dehydration process 。Using different program ANSYS analysis, finally chooses the best scheme。
The optimized horizontal decanter centrifuge,the sludge mixture goes by subside,then entering into the cone area of drum to dry it。 Finally, the sludge mixture access screen to dehydration once again。 The optimization of the structure is not only a simple combination on the advantages of the ordinary horizontal screw centrifuge and filter mesh,but also further expand the capacity, improve the separation effect and enlarged sieve diameter which can solve the problem of easily blocked on unoptimized centrifuge and greatly improve the performance of the horizontal decanter centrifuge。
Keywords: sludge dewatering; horizontal decanter centrifug; spiral rotor; structure optimization; dehydration process
目 录
第一章 绪论 1
1。1 选题背景 1
1。2 课题研究目的与意义 1
1。3 离心机转子国内外研究现状 2
1。4 本文研究内容 4
第二章 卧式螺旋卸料沉降离心机概述 5
2。1 卧式螺旋卸料沉降离心机在污泥脱水中的作用 5
2。2 卧式螺旋卸料沉降离心机的工作原理 5 ANSYS污泥脱水用螺旋卸料沉降离心机螺旋转子结构优化设计:http://www.youerw.com/jixie/lunwen_130812.html