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(年产30万吨)日产1000吨熟料回转窑水泥生产线(200,000tonsperyear)600t/drotarykilnclinkercementproductionline600t/d5cyclonespreheaterrotarykilnclinkerPortlandcementproductionline(Portlandcement,thesilicatecementaccordingtotheproductionstandardsofthePeople'sRepublic,thecementnameofthisengineeringdesigh),Whencompleted,formingwithanannualoutputof200,000tonsofcement‐scaleenterprises.一、生产工艺流程Productionprocess1、原料、燃料储存Rawmaterials,fuelstorage石灰石由矿山开采,自卸汽车运入厂堆场内,经PCD1612锤式破碎机进行破碎,碎石经卸料斗、皮带机、提升机、库顶皮带机送入2‐φ10m×24m碎石储存。Bylimestonemining,thelimestoneisconveyedintothefactoryyardbydumptruck.APCD1612HammerCrusherisusedtobreaklimestone,aggregateisconveyedbydischargedoo、beltconveyer、hoist、theroofbeltmachinesinto2‐φ10m×24mroundlimestonetobestored.砂岩经矿山开采,由汽车运入18×20m堆棚进行风干、破碎后先再经皮带机、S型卸料小车送入20×25×15m预均化堆棚进行“T”型走廊两面布料,形成“人”字形料堆,用装载机端面取料的简易预均化作业,其均化系数可达3‐6。装载机取料送至皮带机,经提升机送入φ6×14m砂岩圆库储存。Bylimestonemining,thelimestoneisconveyedbythecarintothe18×20mstackshelffordried、crushedandthenconveyedbybeltconveyer、S‐typeunloadingcarinto20×25×15mpre‐homogenizationreactorshelf.AndlimestoneissetasaTonbothsidesofthecorridorfabrics,formsapeopleshapedreactormaterials.Simplepre‐homogenizationoperationusedbyloader’sheadfacetakingmaterial,thehomogenizationcoefficientcouldreach3‐6.Loadertakesmaterialsandsendsthemtothebeltconveyer,theseareconveyedbyhoistintoφ6×14mroundlimestonetobestored.铁粉由卸汽车运入厂内18m×20m堆棚,经提升机送入1‐φ6m×14m铁粉库储存。Ironpowerisbroughtintothe18m×20mreactorshelfbythedumpingofcars,andthenitisconveyedbyhoistintothe1‐φ6m×14mironstorehousetobestored.粘土由自卸汽车运入厂内18m×20m堆棚,经φ2.2m×16m烘干机烘干后用提升机送入φ6m×14m圆库储存。Clayisbroughtintothe18m×20mreactorshelfbythedumpingofcars,driedbytheφ2.2m×16mdryer,andthenitissentintotheφ6m×14mroundstorehousetobestored.原煤由自卸汽车运入厂内18m×40m原煤堆棚储存。Rawcoalisbroughtintothe18m×40mrawcoalreactorshelfbythedumpingcaratobestored.石膏由自卸汽车运入厂内15m×30m石膏堆场,破碎后经提升机送入1‐φ6m×14m石膏库储存。Gypsumisbroughtintothe15m×30mgypsumyardbythedumpingofcars,aftercrusheditissenttothe1‐φ6m×14mgypsumstorehousetobestored.2、生料制备及均化Preparationandhomogenizationofrawmaterial原料由石灰石、砂岩、粘土、铁粉四组份组成。石灰石、砂岩、粘土、铁粉经库底配料后,送入φ2.6m×10m圈流磨系统进行粉磨。配料控制由微机配料系统自动调节原料配比以达到控制生料率值合格的目的。出磨生料经组合成选粉机选粉后,合格的生料由链运机、提升机输送入4‐φ8×18m间歇式生料均化库进行均化储存,粗粉通过链运机返回磨头重新粉磨。出磨废气经旋风分离器和电收尘器后由风机排入大气。收集的细粉进入细粉链运机,经提升机送入生料均化库。Rawmaterialsaremadeoffourparts:limestone、sandstone、clayandirondust.AndtheyaresenttotheΦ2.6m×10mring‐grindingmillsystemtobegroundafterproportioningatthebottomofbatchingstation.Toachievethepurposethatcontrollingtherawratequalified,weusecomputerbatchingsystemtoregulatetheproportionofrawmaterial.Afterchosingbythepowderconcentrator,theeligiblerawmaterialsareconveyedintothe4‐φ8×18mbatchrawmealhomogenizingsilotobehomogenizedandstored,bychainconveyorandhoist.Andthecoarsepowdersarereturnedtothewheelheadtobegroundagainbythechianconveyor.Thewastegasofcementgrindingsystemgoesintocycloneseparatorandelectricdustcollectortobetreatedthendischargedintoair.Thecollectingfinepowdersgointothefinechainconveyor,andthenconveyedintotherawmealhomogenizingsilo.3、煤粉制备Pulverizedcoalpreparation储存于堆棚内的原煤,经搭配后由提升机送入原煤仓,再经圆盘喂料机喂入磨内,煤磨采用φ2.2m×5.8m风扫式钢球磨,出磨煤粉经粗粉分离器分离后,粗粉重新入磨,细粉再入旋风分离器,合格煤粉收入煤粉仓储存,废气经煤磨袋收尘器收尘后由风机排入大气,袋收尘器收下的煤粉作为成品入窑头煤粉仓,煤磨备用热源由热风炉供给。Rawcoalwhichstoredinthestokeshedareconveyedintotherawmealsilobyhoistafterbeingmatched.Thentheyaresentintothemillbyrotarydiscfeeder.Aφ2.2m×5.8mairsweptsteelballcoalmillisusedascoalmill.Afterbeingseparatedbymealseparator,mealisbacktogrindinthemill.Finepowdersaresentintocycloneseparatingdeviceagain,qualifiedcoaldustareconveyedintopulverizedcoalbunker.Thewastegasgoesintobagfiltertobetreatedthendischargedintoair.Thecoalpowercollectedbythebagfilterisregardedasthefinalgoods,thensentintothekilnheadcoal‐powercabin.Standbyheatsourceofthecoalmillissuppliedbythehotblaststove.4、熟料烧成Clinkerfiring储存于生料储存库内的生料经气力输送送至设于窑尾的生料小仓,经计量再通过气力提升泵送至第一、二级旋风筒间的料风管喂入,依次经一、二、三、四、五级旋风预热器预热后进入φ3.3m×52m回转窑内煅烧。Rawmeal,whichstoredintherawmealstorehouse,isconveyedintotheraw‐mealsilolocatedinthekilnoutsetbypneumatictransport.Aftermeasured,itissenttoairpipebetweenthefirst、secondstagecyclones,thenitgoesintotheφ3.3m×52mrotarykilntobecalcined,afterpreheatingthroughfirst、second、third、forth、fifthstagecyclonepreheaterinturn.储存于煤粉仓的煤粉,经双管螺旋喂料机、冲量流量计计量后由螺旋喂料机、三通道喷煤管将煤粉喷入窑内,三通道喷煤管采用高压离心式鼓风机吹送净风,煤风由罗茨风机吹送。Coalpower,whichstoredinthecoal‐powerstorehouse,isinjectedintothekilnbyscrewfeederandthree‐channelcoalburner,afteritismeasuredbythescrewfeederandimpulseflowmeter.Thethree‐channelcoalburneradopthigh‐pressurecentrifugalblowertowaftnetair,thecoalairiswaftedbytheroot’sblower.5、窑尾废气处理Treatmentofwastegasinthekilnoutlet窑尾废气依次由下而上出一级旋风筒后,经φ4.8m×28m增湿塔增湿降温调质处理后经高温风机,送入75m2卧式电收尘器除尘净化,最后由排尘风机抽入烟囱排向大气。收尘器入增湿塔收下的窑灰经链运机运入小仓后,再经输送机送至生料均化库。Thewastegasissentintotheφ4.8m×28mconditioningtowertobeconditioningandhardeningandtempering,throughone‐stagecyclonefrombottom‐upinturn.Thenitissentintothehorizontalcottrelltobeudsseparation.Finally,thewastegasisdischargedintoairafterbepumpedintochimneybydustingfan.Kilndust,whichcomesfromdustcatcherandconditioningtower,isconveyedi
本文标题:日产1000吨熟料水泥生产线初步方案资料
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