粘土烘干机课程设计

明德至善博学笃行1目录摘要·····················································1英文摘要·····················································2第一章前言·······················································31.任务来源···························································32.设计依据··························································33.工艺流程的选择····················································154.气候条件························································165.环境要求····················································16第二章产量及燃料燃烧的有关计算··································171.烘干机的每小时产量·········································172.燃料燃烧的有关计算··········································172.1单位燃料燃烧的空气需用量······································172.2烟气生成量················································182.3燃烧温度···············································19第三章粘土烘干机的选型计算································191.烘干机的物料平衡及热平衡计算································201.1确定水的蒸发量········································201.2求····················································201.3废气生成量··············································212.选定蒸发强度A值，确定烘干机容积V及烘干机的规格（D×L）············223.电机拖动功率复核·············································234.烘干机热效率的计算···············································245.废气出烘干机的流速···············································246.根据废气量及含尘量选型收尘设备和排风设备及管路布置···············246.1收尘设备选型·················································246.2总的收尘效率················································25明德至善博学笃行26.3CLT/A型旋风收尘器原理和性能描述······························257.确定燃烧室及其附属设备···········································257.1燃烧室的型式选择·············································267.2计算炉篦面积··············································267.3计算炉膛容积·················································267.4计算炉膛高度··················································267.5燃烧室鼓风机鼓风量计算···································26第四章烟道阻力损失及烟囱计算······························271.烟道计算··························································271.1烟气流速与烟道断面······································271.2烟道总阻力及烟气温度计算·································272.烟囱高度计算···············································303.烟囱的直径···················································323.1烟囱出口直径···········································323.2烟囱底部直径··················································32第五章总结·····················································32参考文献·······················································34致谢·················································35明德至善博学笃行3明德至善博学笃行13.5吨/年粘土烘干机的设计摘要：本课题设计的是3.5万吨/年粘土回转烘干机，粘土是生产水泥的主要原料，回转烘干机对粘土的烘干对水泥生产有重要的作用。针对课题设计采用顺流式烘干机，回转烘干机内部装置选择抄板式，根据产量可以确定烘干器的规格。物料从进料口进入烘干机，烟气从相同的方向进入烘干机，对物料进行烘干。本设计用煤是从课本上提供的铜川烟煤对烟气进行计算，以确定废气量、功率。燃烧室选用层燃燃烧室，收尘设备选用旋风收尘器。关键词：3.5万吨/年矿渣，顺流式，烘干机，收尘设备，鼓风设备，管路布置。明德至善博学笃行2Thedesignofthe3.5tons/yearclaydryerEnglishabstract:Thistopicdesigntherotarydryeris35000tons/yearclay,clayisthemainrawmaterial,theproductionofcementrotarydryersforthedryingofclayofcementproductionhasanimportantrole.InviewofthesubjectdesignUSESthdryers,rotarydryerinternaldeviceselectcopyplate,accordingtotheproductioncanbesureofthespecificationsofthedryer.Materialfromtheinletintothedryer,thedirectionofthefluegasfromthesameintothedryer,dryingthesupplies.Thisdesigncoalfromtextbookprovidestongchuancoalforcalculation,thefluegastodeterminetheexhaustandpower.Chooselayercombustionchambercombustionchamber,thedustcollectingequipmentselectionofcyclonedustcollector.Keywords:35000tons/yearslag,th,dryers,dustcollectingequipment,airblastequipment,pipinglayout.明德至善博学笃行3第一章前言1.任务来源年产量为3.5万吨的黏土，初水分为25%（湿基），终水分为2%（湿基），的干燥过程设备选取及工艺设计。2.设计依据物性：粘土的绝干比热容0.94kJ/(kg℃)14物料离开干燥器的温度80℃1天然粉状粘土密度为1.82-1.90(g/cm·cm·cm)9进烘干机高温混合气温度：tm1=900℃1粉质粘土粒径小于0.005mm。8出烘干机混合气温度：tm2=80℃1进料温度：20℃1出料温度：80℃1煤粉的有关物性：煤粉的α=1.1-1.31常温下煤的比热容为1.26kJ/（kg・K)11℃./296.13NmkJca1℃./36.13NmkJcf1煤的工业.元素分析表1种类产地工业分析MarMadAadAdVdaf烟煤铜川1.620.7017.18--15.58种类产地元素分析CdafHdafQdafNdafSdaf烟煤铜川84.233.305.511.135.83低位放热量Qnet（MJ/kg）28.45明德至善博学笃行4其它参数：燃烧室热效率一般为75%左右1水的比热容4.19kJ/(kg℃)1干燥器表面与环境之间的传热系数k0.22,则k取0.22533/2933.0,/00.1mkgmkg烟气空气12漏风和储备系数一般为1.25CLT/A型旋风收尘器.105一般近视取4含尘浓度标准：332/130,/150mmgmmgc取不大于1燃煤量小于200Kg/h时可以选人工操作+燃烧室，燃煤量大于200Kg/h选用机械化操作燃烧室。13/k350~290mW度一般为层燃燃烧室的容积热强1—体积膨胀系数，等于2731；1空气吸入量大约可以按炉内烟气量的10～30％计算.1鼓风机：KpaPCthmVkaa101:20:/10.8:2.1:%50:03当地大气压，，燃烧室冷空气进入温度理论空气用量，为空气系数，取鼓风机储备系数，取厂址选择依据：《建设项目环境保护设计规定(87)国环字第002号》13明德至善博学笃行5第十条建设项目的选址或选线，必须全面考虑建设地区的自然环境和社会环境，对选址或选线地区的地理、地形、地质、水文、气象、名胜古迹、城乡规划、土地利用、工农业布局、自然保护区现状及其发展规划等因素进行调查研究，并在收集建设地区的大气、水体、土壤等基本环境要素背景资料的基础上进行综合分析论证，制定最佳的规划设计方案。第十一条凡排放有毒有害废水、废气、废渣(液)、恶臭、噪声、放射性元素等物质或因素的建设项目，严禁在城市规划确定的生活居住区、文教区，水源保护区、名胜古迹、风景游览区、温泉、疗养区和自然保护区等界区内选址。铁路、公路等的选线，应尽量减轻对沿途自然生态的破坏和污染。第十二条排放存在有毒有害气体的建设项目应布置在生活居住区污染系数最小方位的上风侧；排放有毒有害废水的建设项目应布置在当地生活饮用水水源的下游；废渣堆置场地应与生活居住区及自然水体保持规定的距离。第十三条环境保护设施用地应与主体工程用地同时选定。第十四条产生有毒有害气体、粉尘、烟雾、恶臭、噪声等物质或因素的建设项目与生活居住区之间，应保持必要的卫生防护距离，并采取绿化措施。第十五条建设项目的总图布置，在满足主体工程需要的前提下，宜将污染危害最大的设施布置在远离非污染设施的地段，然后合理地确定其余设施的相应位置，尽可能避免互相影响和污染。新建项目的