JLY3809机立窑加料及窑罩部件设计论文说明书

目 录1 前 言 ··························································12 总体方案论证····················································22.1窑罩的结构和对窑罩技术改进的分析·······························22.2加料装置的分析·················································42.3 传动机构的技术分析论证········································43 JLY3809机立窑（加料及窑罩部件）设计综合参数计算·················53.1确定立窑的规格与形状···········································53.2立窑的废气量与烟囱计算·········································73.3烟囱计算·······················································83.4立窑收尘器的选型计算···········································83.5袋式除尘器的选型···············································103.6播料落点的确定·················································104加料装置的参数设计···············································124.1选择电机·······················································124.2计算传动装置的各参数···········································124.3锥齿轮传动设计·················································125传动机构的密封润滑···············································206机立窑的窑罩和加料装置的总体设计·································217结论·····························································22参考文献··························································23致谢·······························································24JLY3809机立窑（加料及窑罩部件）设计说明书摘要：本课题完成了JLY3809机立窑(加料及窑罩部件)设计。JLY3809机立窑是目前新兴的扩的直径窑,但在很多配套设备上还是沿用扩径前的技术设备,使得虽然进行了改造,但是相关设备未能得到改进,未能体现出新窑的优势。本次设计了新型的加料装置和窑罩。新型加料装置对支承装置和布料器做了改进,生产实践表明支撑装置经过改造后,传动平稳,且润滑和检修方便;改造后的布料器提升了高度,不易堵料,减轻看火工的劳动强度,布料器不易腐蚀,减少维修更换费用;在升降装置方面也做了一点小改动,增加了防扭器.改造后的窑罩便于运输,吊装和易于锈蚀的下部可以单独更换和拆卸。铸钢比普通的Q235钢耐高温,且铸钢内含有一部分合金元素,又耐氧化不易变形等,故使用寿命一般比Q235钢至少高23倍。设计中还涉及到沉降室和新型收尘器的选型,减少了资源的浪费,提高了水泥的生产效率,大大减少了机立窑对周围环境的污染。关键词:机立窑;窑罩;加料装置;除尘The charging and hooding parts designs of JLY3809 mechanical upright kilnAbstract:This subject designs the charging and hooding parts of JLY3809 kiln. At present, JLY3809 mechanical upright kiln is a new emerging large diameter kiln. Because many corollary equipment have not been improved and still adopt conventional technology ,so the benefits with the new kiln can not been realized. In this subject we have designed the new charging device and hooding parts of kiln. The supporting and charge spreading have been improved ,too. The production practice indicates that the propping up equipment after transformation transmits steadily. Also the lubrication and the overhaul is convenient; after the transformation cotton material has promoted its altitude. The material cant be easily blocked, which reduces the labor intensity looks at the hot work, the cotton material is not easily corroded, reduced the repair and replacement; a point of small modification is also made in the elevating equipment aspect, adding in anti-turning equipment, after the transformation, the hooding parts of kiln is advantageous for the transportation, the hoisting and lower part which rusts is easily away possible alone to be replaced and disassembled. The cast steel is thermostabler than the ordinary Q235 steel, also the cast steel includes part of alloying elements, the oxidation and can not be easily distorted and so on. The service life of it is generally 23 double higher than Q235 ,moreover in the design there also involves the settling pocket and the new dust catcher shaping, reduced the resources waste. Enhanced the cement production efficiency, reduced greatly the environment pollution made by mechanical upright kiln.Key word: mechanical; hooding parts of kiln; charging device; dust removal1.前言国内外发展的形势我国立窑水泥发展，经历了三个高峰期，前两个高峰期是在50和60年代，为两次全国农田水利建设高潮的需要；第三个高峰期是为改革开放后国民经济持续高速发展的需要，由此可证明，立窑水泥为我国国民经济的发展做出过重要的历史贡献，并将继续做贡献。 90年代初，原国家建材局向全国立窑企业推广应用节能新技术，并在全国各地建立了众多节能改造示范线，使立窑水泥生产水平上了新台阶，进入21世纪，立窑生产水平又更上一层，立窑水泥质量进一步稳定、提高，多数企业的熟料28天耐压强度都在50Mpa以上，有的能稳定在54Mpa以上，现代立窑水泥的质量，能与现代旋窑水泥质量相妣美；能耗进一步降低，现代立窑熟料标准煤耗120kg/t熟料，其中有的在100kg/t熟料；水泥综合电耗70kw./t水泥，其中有的在100 kw./t水泥，左右，现代立窑主要的技术经济指标，相当或优于日产2500（t/d）带分解炉窑。原国家建材局给立窑水泥制定“限制、淘汰、改造、提高的八字方针，很符合我国国情，笔者认为应继续贯彻实施。限制不再新建，对质量低劣、能耗高、污染严重的应尽快淘汰（目前这类的已不多），对多数立窑企业应是改造、提高，使其逐步达到现代立窑水泥的水平。机立窑水泥的发展方向现代化立窑 为使机立窑较快的迈向现代化，首先要使产品质量优，其次要大幅度降低能耗、节约资源、能源、保护好环境、实施可持续性发展战略，这既符合国家政策，又能使立窑企业沿着正确的道路发展、壮大。适应水泥生产新时代的JLY3809机立窑应运而生,许多水泥窑生产厂家及相关辅件生产商瞄准了当前市场,全面生产新窑。本课题来源于结合生产实际。为了适应现代立窑水泥生产的需要，设计产量为25t/h的机立窑加料及窑罩部件设计以及加料装置及窑罩部件相关零部件设计。有以下几个技术要求：A.所有结构及其零部件设计后考虑技术性、加工工艺性、经济性，并保证安装、使用经济方便。B.要保证机立窑的加料装置的运转平稳，节能高产。在刘平成老师的指导下，首先进行方案论证。通过讨论研究，最终确定采用上、下剖分式窑罩和新型加料系统、以及由电机à减速机à小锥齿轮à大锥齿轮à回转装置à布料器的传动方式。然后根据分析的结果，开始计算轴扭矩以及功率。分析拟定传动装置的运动简图，分配各级传动比，进而进行传动零件的结构进行设计和强度校核。然后对机立窑的窑罩和加料装置进行总体结构设计。JLY3809机立窑新型加料装置改变了以往加料装置的加料斗和布料器易变形，易腐蚀;料球粘在料斗内壁阻碍下料;涡轮减速机在高温,粉尘以及腐蚀气体条件下工作,磨损,漏油严重; 涡轮减速机箱体内润滑油无法保存，顺轴流出。由于窑罩上部气流温度高，粉尘浓度大，从而造成轴承、涡轮、磨损严重或损坏；涡轮减速机中空输出轴与料斗联接的容易腐蚀脱落,落入窑内会造成粉磨设备的磨损;料斗和溜槽材料浪费;三角皮带受高温影响,经常需要调整松紧更换等缺陷。新型加料装置采用针线摆轮减速机代替涡轮减速机，彻底解决漏油问题,功率不变,料斗和溜子的钢板厚度由原来的12mm改为8mm,节约材料;大圆锥齿轮下有轨道和钢球,传动平稳,操作方便,占地小,费用低。本课题新颖实用，在技术上有较大改进，具有较强的竞争力。该加料装置和窑罩将具有很大的市场前景。