干网知识培训课件

ByWernerThommenProductmanagerdryersAndyZhouTechnicalserviceDryerFabrics干网干网第一页，共五十二页。Typesofyarnsandmaterials(原材料种类原材料种类)Dryendoperation,(枯燥枯燥(kzo)工艺工艺)Definitions(定义定义)DryerFabricRequirements,(干网要求干网要求)Designs&Features(设计与特性设计与特性)Installation,Tension&Guiding(安装安装,张力张力与定位与定位)Summary&Questions(总结和问题总结和问题)DryerFabricCourseOutline提纲提纲(tgng)第二页，共五十二页。Australia(澳大利亚澳大利亚)Bangladesh(孟加拉国孟加拉国)China(中国中国)India(印度印度)Indonesia(印尼印尼)Japan(日本日本)Korea(韩国韩国)Malaysia(马来西亚马来西亚(mlixy)NewZealand(新西兰新西兰)Pakistan(巴基斯坦巴基斯坦)Philippines(菲律宾菲律宾)Taiwan(台湾台湾)Thailand(泰国泰国)Vietnam(越南越南)第三页，共五十二页。Locations:位置位置NorthAmerica:北美北美USA:7plants美国美国:7个工厂个工厂(gngchng)Canada:3plants加拿大加拿大:3个工厂个工厂BelgiumCzechRepublicAsia:亚洲亚洲China中国中国AstenJohnsonsalesofficeSingapore第四页，共五十二页。Typesofyarnsandmaterials原材料种类原材料种类(zhngli)第五页，共五十二页。YarnTypes线的种类线的种类(zhngli)Spun Yarn 细纱Monofilament 单丝Round Monofilament 圆形单丝Shaped Monofilament 其他(qt)形状单丝第六页，共五十二页。Regular Round Monofilament常用(chn yn)圆形单丝第七页，共五十二页。Shaped Monofilament 其他(qt)形状单丝第八页，共五十二页。Ribbon Shaped Monofilament 带状单丝第九页，共五十二页。YarnMaterials线的材料线的材料(cilio)Polyester 聚脂Polyamides 聚酰胺PPS 抗磨损聚脂PEEK 耐高温聚脂第十页，共五十二页。Polyester 聚脂KeyProperties:主要主要(zhyo)特性特性Excellent dimensional stability 尺寸稳定Excellent tensile strength 良好的抗张强度Excellent resistance to abrasion 良好的抗磨损性Chemically resistant to acids 耐酸性Fair resistance to alkalis 抗碱性Moderate resistance to hydrolysis 中等耐水解性第十一页，共五十二页。DRY-ENDOPERATION枯燥枯燥(kzo)工艺工艺第十二页，共五十二页。FunctionsofaDryerFabric干网的功能干网的功能(gngnng)Supportssheetthroughdryersection(纸纸张张(zhzhng)的的支支撑撑)fullsupportthroughUno-run&SingleTiersectionsImprovesheat&masstransfer(提高热与质量传递提高热与质量传递)bettersheetcontactondryercan第十三页，共五十二页。SomeDefinitions定义定义(dngy)第十四页，共五十二页。Definition:定义定义Volumeofairperunitareathatpassesthroughafabricunderapressuredifferentialof1/2ofwatercolumn.在在1/2水水柱柱压压力力差差异异下下通通过过网网的的空空气气(kngq)数数量量单单位位.Permeability透气性透气性第十五页，共五十二页。HydrolysisDefinition水解水解(shuji)Adoubledecompositionreactioninvolvingtheadditionoftheelementsofwaterandtheformationofanacidand a base,an acid and an alcohol,or an acid andphenol,resultinginmajortensileloss.一一种种包包含含了了水水分分子子的的酸酸合合物物,或或酸酸和和酒酒精精,或或酸酸和和苯苯酚酚的的复复分分解反响解反响,其结果是伸长其结果是伸长(shnchn)性的丧失性的丧失.第十六页，共五十二页。Hydrolysis水水解解(shuji)Yarndegradationcausedbyacombinationofhighheatandmoisturebothheat&moisturemustbepresent.(水解导致线的退化是由高温与湿气水解导致线的退化是由高温与湿气(shq)引起引起)Fabricgets“rottenusuallystartingontheedges.(网的腐化往往是从边上开始网的腐化往往是从边上开始)第十七页，共五十二页。Mustbedimensionallystable.尺寸稳定尺寸稳定Providegoodrunnability提供良好提供良好(lingho)的运转性的运转性Musthaveasmoothsurfaceandseam光滑的外表和接缝光滑的外表和接缝Mustbeofadequatestrength足够的拉力足够的拉力Contaminationresistantandeasycleaning抗污及易清洁抗污及易清洁Haveanevenperm-profile透气性的一致性透气性的一致性DryerFabricRequirements干网要求干网要求(yoqi)第十八页，共五十二页。DryerFabricRequirementsHavetherightair-permeability正确的透气正确的透气(tuq)值值Air-perminrelationwith:透气性与以下相关透气性与以下相关Dryingcapacity枯燥能力枯燥能力Sheetstability纸张稳定性纸张稳定性第十九页，共五十二页。DryerFabricRequirementsAchieveareasonablelifetime.到达合理的寿命到达合理的寿命Factorsaffectingthelifetime:影响影响(yngxing)寿命的因素寿命的因素Contamination(污染污染)Hydrolysis(水解水解)Chemicaldegradation(化学退化化学退化)Abrasion(磨损磨损)第二十页，共五十二页。DryerFabricDesigns&Features设计设计(shj)与特性与特性第二十一页，共五十二页。MonoTierConcept:FeaturesandBenefitsMonoTier概念概念:特性特性(txng)与优点与优点第二十二页，共五十二页。FloatWeaveConventionalMonoTier第二十三页，共五十二页。ContactAreaMonoTierBalanced Weave第二十四页，共五十二页。SameContactareaasfabricExceptionalStrengthNon-markingMonoTierConcept:PinSeam第二十五页，共五十二页。Fabricstrengthcomparison第二十六页，共五十二页。Pin seamProduct Management 18.10.2006MonoTierStreamline Coil SeamSeam Designs 接缝(ji fn)设计第二十七页，共五十二页。Spiral fabric第二十八页，共五十二页。Extrafine Spiral designFor high speed machinesFor single tier,Uno Run and conventional positionsLow caliper 1.6 mmHigh contact area 30%Easy to cleanPerm steps 110-150-200-250 cfmBi-colored seam spiralSpiralFine第二十九页，共五十二页。TheMonoTIeradvantageof2independentwarpsystemsAbrasion第三十页，共五十二页。FABRICINSTALLATION网的安装网的安装(nzhung)第三十一页，共五十二页。INSTALLINGNEWFABRICWITHOLDFABRIC用旧网安装用旧网安装(nzhung)新网新网第三十二页，共五十二页。USINGLEAD-ONHARNESS第三十三页，共五十二页。TYINGGUIDEPADDLE第三十四页，共五十二页。FabricInstallationTheimportantsteps:重要重要(zhngyo)步骤步骤Ensure all Isolations are in place 隔离装置到位Center the guide roll 导向居中(jzhng)Secure guide palm 平安Align fabric 调整.第三十五页，共五十二页。FabricInstallationTheimportantsteps(contd):6.Seaming接缝接缝Startatguidepalmside.从导向端开始从导向端开始AlignMarks调整标记调整标记Passthepintletroughtheseamchannel.穿连接线穿连接线UsetheSeamingassisttominimizetension用用接接缝缝辅辅助助使使张张力力最最小化小化Whenpullingthewire,doitslowlytoavoidfrictionheat.慢慢拉拉以以防防止摩擦止摩擦(mc)热量的产生热量的产生Finishbothendsasdemonstrated.7.BringFabricuptoTensionGradually慢慢加大张力慢慢加大张力Anewfabricshouldstartwithlowtension(say1.0kN/m)inordertoalignitonthemachine.Increasegraduallywhenthefabricrunsstraight 第三十六页，共五十二页。FabricTension张力张力(zhngl)Advantages:优点优点(yudin)Improvesdryingefficiencybysqueezingairoutbetweenthewebandthedryer.Forces paper into close and constant contactwith steam heated cylinders increasing heattransfer.Machinespeedcanbeincreased,steamconsumptiondecreasedresultinginreducedoperatingcosts.第三十七页，共五十二页。FabricTensionDisadvantages:缺点缺点(qudin)Shortenedfabriclifedueto:Wearfrompittedrolls,overstretching&weakeningBearingwear&driveloadincrease.Rolldeflection:fabricdistortion,CMDpermeabilityvariation.speedvariationbetweencenterandedges.Sheetmarksfromfabricweavepattern.第三十八页，共五十二页。Recommended:推荐推荐(tujin)34kN/monnewmachinesFollowmanufacturersspecificationsFabricTension第三十九页，共五十二页。FabricCleaning网的清洁网的清洁(qngji)Showertypes冲淋方式冲淋方式(fngsh)Lowpressurechemicalshower.rollsideoffabric,intonipoffirstreturnroll.Lowpressurerinseshower.papersideoffabric,endofreturnrun.HPcleaning/rinsingshower.papersideoffabric,perpendiculartofabric.endofreturnrun.第四十页，共五十二页。FabricCleaning CleaningProcedure:清洁步骤清洁步骤Ensurecansarecooledtoavoidthermalshock.确保已经冷却确保已经冷却Crawlspeed.爬行速度爬行速度(sd)Warmwateronshowers.喷淋水升温喷淋水升温Dilutecleaningsolution.稀释清洁剂稀释清洁剂Keepfabricswet.使网湿润使网湿润Followrecommendedcleaningtime.根据建议清洁时间根据建议清洁时间Thoroughlyrinsefabricwithfreshwater.用清水用清水(qnshu)彻底冲洗网面彻底冲洗网面第四十一页，共五十二页。FabricCleaningAdvantages:优点优点Consistentdryerperformance.网的可靠性网的可靠性Improvedsheetprofile.提高纸张质量提高纸张质量(zhling)Betterpocketventilation.Betterfabriclife.延长使用寿命延长使用寿命Reducedsteamusage.降低蒸汽用量降低蒸汽用量Lowerenergycost.降低能源本钱降低能源本钱第四十二页，共五十二页。ChangeinPermeability透气性的改变透气性的改变(gibin)FabricCleaning 第四十三页，共五十二页。There is no quick and easy answer to this question,dryer fabrics should be inspected at regular intervals,both:这里(zhl)没有直接的答复,干网需要经常性的定期检查:During Shuts,and 关机时和While Running 运转时FabricInspection/Removal网的检查网的检查(jinch)/取下取下第四十四页，共五十二页。DuringShuts关机时关机时FabricInspection检查检查(jinch)第四十五页，共五十二页。Shutdown:关机时关机时Inspectedges检查两边检查两边Inspectseam检查接缝检查接缝(jifn)Inspectguidingaction检查导向检查导向Inspectstretchroll检查张力辊检查张力辊Inspectfabricbodyfortears,cuts,etc.检检查查网网面磨损等面磨损等RegularFabricEvaluations网的评估网的评估(pn)第四十六页，共五十二页。Edgeravelling/damage:边的损坏边的损坏Excessiveguidepaddleforce过大的导向翼的拉力过大的导向翼的拉力Fabricrubbingagainstobject(s)网与物体网与物体(wt)的摩擦的摩擦RegularFabricEvaluations第四十七页，共五十二页。SymmetricalBowSeamBowing 接缝线(fn xin)弯曲第四十八页，共五十二页。SeamBowing SymmetricalBow:Excessivetension过大的张力过大的张力CMDrolldiameterdifferencesstockbuild-upCorrection:纠正措施纠正措施(cush)Installstrongerorlargerdiameterrolls安装更强或更大的安装更强或更大的辊子辊子Useconcaverolls用凹面辊用凹面辊第四十九页，共五十二页。SeamBowing Fronttobackmisalignmentbow第五十页，共五十二页。Thankyou.谢谢谢谢(xixie)AnyQuestions?提问提问第五十一页，共五十二页。内容(nirng)总结By。Dryend operation,(枯燥工艺)。一种包含了水分子的酸合物,或酸和酒精,或酸和苯酚的复分解反响,其结果(ji gu)是伸长性的丧失.。Consistent dryer performance.网的可靠性。Fabric Inspection/Removal网的检查/取下。Regular Fabric Evaluations网的评估。提问第五十二页，共五十二页。