毕业设计日产1400吨氧化铝循环流态化烧炉设计.docVIP

日产1400吨氧化铝循环流态化焙烧炉设计 摘要 氧化铝作为一种基础的工业原材料，对国民经济的发展起着相当重要的作用，因此世界各国对氧化铝工业的发展都非常重视。氧化铝是电解铝的唯一原料，是铝工业生存和发展的根本条件，氧化铝工业是随着电解铝工业的发展而不断发展的。由于铝具有良好的导电性、传热性、延展性、以及耐腐蚀性等，铝及其合金在国民经济中起着重要的作用，其消耗量仅次于钢铁。同时，氧化铝还是化工、机械、建材业的重要原料。本文第一章介绍了氧化铝的性质及用途，氧化铝的生产原理，氧化铝循环焙烧炉原理，分析了国内外氧化铝生产技术状况，课题的研究背景、任务及意义。第二章主要介绍了氧化铝生产的两种工艺（回转窑焙烧工艺和流态化焙烧工艺），重点介绍了流态化焙烧工艺中的三种典型炉子（美铝的流态化闪速焙烧炉，德国鲁奇公司的循环流态化焙烧炉，丹麦史密斯公司的气态悬浮焙烧炉），并列出了3中炉子的主要指标。之后阐述了流态化焙烧炉的优点（与回转窑相比），为选择流态化焙烧系统提供了依据。最后介绍了循环流态化焙烧系统，包括系统组成，工艺流程。 关键词：氧化铝；流态化；焙烧炉 ABSTRACT Alumina as a basic industrial raw materials,plays an important role in the development of the national economy,So the countries in the world attach great importance development of the aluminum industry.Alumina is the only raw material of electrolytic aluminum and is a fundamental condition for the survival and development of aluminum industry,the alumina industry with the development of the Electrolytic Aluminum Industry and continue to develop.Becausealuminum has good electrical conductivity,thermal conductivity,ductility,and corrosion resistance,aluminum and its alloys play an important role in the national economy,its consumption is second only to iron and steel.At the same time,alumina play an important raw in material chemicals,machinery,building materials industry.The first chapter is devoted to the production principle of alumina,the nature and purpose of,alumina,alumina cycle roaster principle,analyzes the technical condition of alumina production at home and abroad,the research background,tasks,and significance.The second chapter introduces two of the alumina production process(rotary kiln calcination process and fluidization roasting process),focuses on three typical furnace fluidized roasting process(Alcoa fluidization flash roasting furnace,Germany Lurgi circulating Fluid Bed roaster,Denmark Smith gaseous suspension calciner),and lists the main indicators of the three in the furnace. Then described the advantages of fluidized roaster (compared with the rotary kiln) pro