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1、设计总说明本隧道窑的优点是操作连续,生产能力较大,燃料消耗低,使用寿命较长,机械化自动化程度较高,劳动条件较好,产量质量较高。本隧道窑是由大量的耐火材料所构成,总长度为171米,包括3个带,即预热带,烧成带,冷却带,其中预热带和冷却带是由粘土砖,轻质粘土砖,高炉矿渣,红砖组成,烧成带则是由硅砖,轻质高铝砖,粘土组成,高炉矿渣组成。该窑属于连续型窑炉,热利用性能较好,使用自然风或从冷却带抽出的1000℃热风助燃,从而使空气预热,保证了烧成温度得以实现。说明详细介绍了高铝砖隧道窑的总体设计过程,主要内容包括:窑体结构及主要尺寸的计算、燃料燃烧计算及燃烧设备选型、风机的选择。窑的规格为:171m
2、×3.0m×3.1m。该隧道窑采用曲折密封、砂封、窑底压力平衡系统和窑车的三曲折密封结合方式,防止冷空气漏入窑内,达到密封的目的。预热带采用排烟与热循环气幕相结合的方式,有效地消除上下温差,保证产品质量的稳定。在烧成带23—38车位之间,设有15对小功率的高速调温烧嘴;在39—53车位之间,设置14对抽风口,抽出热空气作为干燥空气;在53—57车位两侧窑墙,设置4对分散送风装置,通过调整风机转速和管道上的闸板来调节风量,保证出窑制品冷却到100℃以下[10]。关键词:高铝砖,隧道窑,设计第25页DesignDescriptionTheadvantageofthistunnelkilnope
3、rationshavelotoffeaturtions,forexamplecontinuous,largeproductioncapacity,lowfuelconsumption,longerlife,higherdegreeofmechanizationandautomation,betterworkingconditions.theproductionofhighquality.Thistunnelkilnusedalargenumberofrefractorycomposition,lengthofthetotalis171meters,includingthreepart,as
4、apreheatingzone,firingzone,coolingzone,thepreheatingzoneandcoolingzoneweremadebytheclaybrick,lightweightclaybricks,blastfurnaceslag,redbrickcomposition,thefiringzonewasbemadesilicabrick,lightweighthighaluminabricks,clay,blastfurnaceslagcomposition.Thiskilnisacontinuouskilnwithabetterheatutilizatio
5、nrate,andthenaturalwindorthehotairpumpedfromthecoolingzoneisusedtopreheatthecoldair.Thispaperintroducesthedetaileddesignprocessofthetunnelkiln,whosespecificationis171m×3.0m×3.1m.Themaincontentincludesthecalculationsofthekilnstructuresize,fuelcombustionvalues,andtheheatbalancebetweenthepreheatingzo
6、neandthefiringzone.Moreover,theselectionsofthecombustionandventilationequipmentaredescribedcarefullytoo.Topreventtheoutsideairfromleakingintothekiln,Iadoptanewcombinationstyleincludingthelabyrinthpacking,sandseal,thepressurebalancesystemofkilnbottomandthekilncars.Thereare15lowpowerburnerswhichcana
7、djustthetemperaturebymeansofhighspeedrunningbetweenthe23thandthe38thcarport,andfourthpairsofsuctionopeningwhichcandrawoffthehotairasthedryresourcebetweenthe53thandthe57thcarport,moreoverfourpairsofairdispersedist