本文關(guān)鍵詞： 帶式振動(dòng)干燥 數(shù)學(xué)建模 結(jié)構(gòu)優(yōu)化 流體仿真　出處：《蘇州大學(xué)》2014年碩士論文　論文類型：學(xué)位論文

【摘要】：隨著社會(huì)進(jìn)步和發(fā)展，污泥減量化、無(wú)害化和資源化進(jìn)程加快，采用先進(jìn)的污泥處置技術(shù)是社會(huì)發(fā)展的需要。近年來(lái)國(guó)內(nèi)外越來(lái)越多的企業(yè)采用干燥技術(shù)對(duì)污泥進(jìn)行無(wú)害化和資源化處理。干燥是要消耗能源的，如何以最小的能源消耗，獲得理想的干燥效果，一直是國(guó)內(nèi)外從事污泥處置企業(yè)和研究者研究的問(wèn)題之一。通過(guò)前期研究，本文提出采用鍋爐煙道氣余熱對(duì)市政污泥進(jìn)行無(wú)害化和資源化處理。論文主要圍繞著改善污泥分散效果、提高污泥干燥效率和干燥設(shè)備關(guān)鍵結(jié)構(gòu)優(yōu)化設(shè)計(jì)等方面開(kāi)展“節(jié)能低溫余熱帶式振動(dòng)污泥干燥技術(shù)”課題研究。 課題首先通過(guò)對(duì)污泥干燥國(guó)內(nèi)外現(xiàn)狀的研究，提出了采用條狀污泥（即改變污泥的干燥形態(tài)）和利用振動(dòng)的方法變平面干燥為立體干燥，來(lái)提高污泥干燥效率，為課題后續(xù)研究確立了研究方向和內(nèi)容。并通過(guò)研究污泥的性質(zhì)以及帶式污泥干燥工藝過(guò)程，確定了“一種節(jié)能低溫余熱帶式振動(dòng)污泥干燥技術(shù)方案”。 在上述方案的基礎(chǔ)上通過(guò)對(duì)帶式振動(dòng)污泥干燥過(guò)程的濕分、溫度以及凸輪振動(dòng)的分析研究，構(gòu)建了帶式振動(dòng)干燥系統(tǒng)的數(shù)學(xué)模型。并利用ANSYS有限元分析軟件及多目標(biāo)優(yōu)化對(duì)條式污泥擠出裝置的刀架、剪切軸及振動(dòng)裝置的驅(qū)動(dòng)軸等關(guān)鍵零部件進(jìn)行了應(yīng)力和模態(tài)分析，，最后利用FLUENT先后對(duì)熱空氣噴嘴、熱源輸送管道、干燥廂體等部件，進(jìn)行了過(guò)程數(shù)值模擬，為課題的后續(xù)研究奠定了理論基礎(chǔ)。
[Abstract]:With the progress and development of the society, the process of sludge reduction, innocuity and resource utilization has been accelerated. In recent years, more and more enterprises at home and abroad adopt drying technology to treat sludge innocuously and resource. Drying is to consume energy. How to obtain ideal drying effect with minimum energy consumption has been one of the problems of sludge disposal enterprises and researchers at home and abroad. In this paper, the waste heat of boiler flue gas is used to treat municipal sludge innocuously and resource. To improve the efficiency of sludge drying and the optimization design of key structure of drying equipment, the subject of "energy saving low temperature waste heat belt vibrating sludge drying technology" was carried out. Firstly, through the research on the current situation of sludge drying at home and abroad, the paper puts forward the method of changing plane drying to solid drying by using strip sludge (that is, changing the drying form of sludge) and using vibration. In order to improve the efficiency of sludge drying, this paper establishes the research direction and content for the future research, and studies the properties of sludge and the process of strip sludge drying. An energy-saving low-temperature waste heat belt vibrating sludge drying scheme was determined. On the basis of the above scheme, the wet fraction, temperature and cam vibration of the strip vibrating sludge drying process were analyzed and studied. The mathematical model of the strip vibration drying system was constructed, and the tool holder of the strip sludge extrusion device was optimized by using ANSYS finite element analysis software and multi-objective optimization. The stress and modal analysis of the key parts such as the shearing shaft and the driving shaft of the vibration device were carried out. Finally, the hot air nozzle, the heat source conveying pipeline, the dry chamber body and other parts were successively used by FLUENT. The numerical simulation of the process is carried out, which lays a theoretical foundation for the further study of the subject.
【學(xué)位授予單位】：蘇州大學(xué)
【學(xué)位級(jí)別】：碩士
【學(xué)位授予年份】：2014
【分類號(hào)】：TB4

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