【作者】 姜年勇；

【导师】 王述洋；

【作者基本信息】 东北林业大学 ， 机械设计及理论， 2007， 硕士

【摘要】 本课题是以国家“863”和“948”高科技科研项目为依托，在省攻关项目的支持下，全面系统地收集了国内外对生物质热解液化技术的研究资料，并深入地进行了学习和研究。在了解和掌握生物质热解液化基理的基础上，着重研究转锥式生物质热解液化反应器的设计思想和方法，经过认真的分析和研究，设计出一套处理生物质能力为600kg／h的中试样机，达到了将生物质热解液化技术向全社会推广的目标迈进的目的。本文首先对生物质热裂解的工艺流程作了简要的介绍，接着简单介绍了生物质热裂解输送系统。然后着重讲述了热解液化主反应器的设计方法，包括：转锥式快速裂解装置的螺旋输料机的设计思想、方法和设计过程，并给出了详细计算过程。从主反应器的处理能力入手，研究主反应器进料口的尺寸，转锥的转速以及三层转锥的结构和相互的距离对主反应器的处理能力的影响，并给出了合理计算。分析以前所设计的反应器转锥的结构，以及挡沙回流结构的特点和不足，设计出新的易拆式部分反射热载体回流挡圈，有效合理的解决部分热载体回流再次参加反应的问题。研究以前热载体管路的分布，给出新的分布形式，对本装置转锥的功率消耗作详细的设计和计算。对主反应器的主轴进行了分析，设计出新的主轴结构，并进行受力分析及校核。研究转锥主反应器旋风分离器的原理以及结构，给出详细计算。分析转锥式主反应器的冷凝装置的冷凝原理，给出二级冷凝的构想和设计思路，并给出结构简图和相关计算。本装置可以有效的将生物质颗粒通过热裂解转化成生物燃油。本装置具有结构紧凑合理，能耗小，效率高，易于加工制造以及拆卸和维护等优点，本论文结果将为今后生物质热解液化研究提供借鉴和参考。更多还原

【Abstract】 This topic takes the national "863" and "948" high tech-scientific research item as a backing, and is under the support of province attack project. I have comprehensively and systematically collected domestic and foreign research materials of flash pyrolysis and liquefaction technology for biomass and have carried on deeply study and reach. After understood and grasped the base principle of biomass pyrolysis and liquefaction I put more attention to study the thought and method to design the main reactor of rotating cone flash pyrolysis and liquefaction. Through carefully study and research I design a 600 kg/h middle prototype, machieved the goal that promoting the technology of pyrolysis and liquefaction for biomass.This article briefly introduces the technical process and the expulsion system of biomass pyrolysis firstly. Then this article narrated emphatically the design method of the main reactor, including research the spiral feeding machine’s design thought, method and the detailed calculation process. From main reaction handling ability obtaining, the research including feeding orifice size of the main reaction, speed of the rotating cone as well as three rotating cone’s structure and the distance of each other which have influence to main reaction’s handling ability. Analysis the structure of reactor designed before, and the sand backflow structure’s characteristic and it’s insufficiency. I design a new type which is easy to disassemble called part reflection backflow heat-carrying agent ring. It’s solute the question which partial heat-carrying agent backflow participates in the response once more effectively and reasonably. I study the distribution of heat-carrying agent pipeline beforehand, give the new distributed form. Making the detailed design and the computation for the awl’s power dissipation of this installment. I has carried on the analysis to the main reaction’s main axle, design a new thing main axle, and carries on the stress analysis and the examination. Research main reaction’s cyclone separator’s principle as well as the structure, gives the detailed computation. I analysis the condensing works of the rotating cone flash pyrolysis and liquefaction reactor and it’s condensation principle, and give the conception of two levels of condensations and the design mentality, and give the diagram of mechanism and the correlation computation.The rotating cone flash pyrolysis and liquefaction reactor for biomass is a new unit that can change the little biomass grain into bio-oil. This installment has the merit that: Its structur(?) is compact and reasonable, Its energy consumption is small, and Its efficiency is high, It is easy to manufacture as well as disassemblage and maintenance. This article will provide a model and reference for the next biomass pyrolysis and liquefication research.更多还原