干网知识培训课件

ByWernerThommenProductmanagerdryersAndyZhouTechnicalserviceDryerFabrics

干网第一页，共五十二页。Typesofyarnsandmaterials(原材料种类)Dryendoperation,(枯燥(kūzào)工艺)Definitions(定义)DryerFabricRequirements,(干网要求)Designs&Features(设计与特性)Installation,Tension&Guiding(安装,张力与定位)Summary&Questions(总结和问题)DryerFabricCourseOutline

提纲(tígāng)第二页，共五十二页。Australia(澳大利亚)Bangladesh(孟加拉国)China(中国)India(印度)Indonesia(印尼)Japan(日本)Korea(韩国)Malaysia(马来西亚(mǎláixīyà))NewZealand(新西兰)Pakistan(巴基斯坦)Philippines(菲律宾)Taiwan(台湾)Thailand(泰国)Vietnam(越南)第三页，共五十二页。Locations:位置NorthAmerica:北美USA:7plants

美国:7个工厂(gōngchǎng)Canada:3plants

加拿大:3个工厂BelgiumCzechRepublicAsia:亚洲China

中国AstenJohnsonsalesofficeSingapore第四页，共五十二页。Typesofyarnsandmaterials

原材料种类(zhǒnglèi)第五页，共五十二页。YarnTypes线的种类(zhǒnglèi)SpunYarn细纱Monofilament单丝RoundMonofilament圆形单丝ShapedMonofilament其他(qítā)形状单丝第六页，共五十二页。RegularRoundMonofilament常用(chánɡyònɡ)圆形单丝第七页，共五十二页。ShapedMonofilament其他(qítā)形状单丝第八页，共五十二页。RibbonShapedMonofilament带状单丝第九页，共五十二页。YarnMaterials线的材料(cáiliào)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(zhǔyào)特性Excellentdimensionalstability尺寸稳定Excellenttensilestrength良好的抗张强度Excellentresistancetoabrasion良好的抗磨损性Chemicallyresistanttoacids耐酸性Fairresistancetoalkalis抗碱性Moderateresistancetohydrolysis中等耐水解性第十一页，共五十二页。DRY-ENDOPERATION

枯燥(kūzào)工艺第十二页，共五十二页。FunctionsofaDryerFabric

干网的功能(gōngnéng)Supportssheetthroughdryersection(纸张(zhǐzhāng)的支撑)fullsupportthroughUno-run&SingleTiersectionsImprovesheat&masstransfer(提高热与质量传递)bettersheetcontactondryercan第十三页，共五十二页。SomeDefinitions

定义(dìngyì)第十四页，共五十二页。Definition:定义 Volumeofairperunitareathatpassesthroughafabricunderapressuredifferentialof1/2〞ofwatercolumn. 在1/2〞水柱压力差异下通过网的空气(kōngqì)数量单位.Permeability透气性第十五页，共五十二页。HydrolysisDefinition

水解(shuǐjiě)Adoubledecompositionreactioninvolvingtheadditionoftheelementsofwaterandtheformationofanacidandabase,anacidandanalcohol,oranacidandphenol,resultinginmajortensileloss.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,其结果是伸长(shēnchánɡ)性的丧失.第十六页，共五十二页。Hydrolysis水解(shuǐjiě)Yarndegradationcausedbyacombinationofhighheatandmoisture–bothheat&moisturemustbepresent.(水解导致线的退化是由高温与湿气(shīqì)引起)Fabricgets“rotten〞usuallystartingontheedges.(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Providegoodrunnability提供良好(liánghǎo)的运转性Musthaveasmoothsurfaceandseam光滑的外表和接缝Mustbeofadequatestrength足够的拉力Contaminationresistantandeasycleaning抗污及易清洁Haveanevenperm-profile透气性的一致性DryerFabricRequirements

干网要求(yāoqiú)第十八页，共五十二页。DryerFabricRequirementsHavetherightair-permeability正确的透气(tòuqì)值Air-perminrelationwith:透气性与以下相关Dryingcapacity枯燥能力Sheetstability纸张稳定性第十九页，共五十二页。DryerFabricRequirementsAchieveareasonablelifetime.到达合理的寿命Factorsaffectingthelifetime:影响(yǐngxiǎng)寿命的因素Contamination(污染)Hydrolysis(水解)Chemicaldegradation(化学退化)Abrasion(磨损)第二十页，共五十二页。DryerFabricDesigns&Features

设计(shèjì)与特性第二十一页，共五十二页。MonoTierConcept:FeaturesandBenefits

MonoTier概念:特性(tèxìng)与优点第二十二页，共五十二页。FloatWeaveConventionalMonoTier第二十三页，共五十二页。ContactAreaMonoTierBalancedWeave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。PinseamProductManagement18.10.2006MonoTierStreamlineCoilSeamSeamDesigns接缝(jiēfénɡ)设计第二十七页，共五十二页。Spiralfabric第二十八页，共五十二页。ExtrafineSpiraldesignForhighspeedmachinesForsingletier,UnoRunandconventionalpositionsLowcaliper1.6mmHighcontactarea30%EasytocleanPermsteps110-150-200-250cfmBi-coloredseamspiralSpiralFine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(ānzhuāng)第三十一页，共五十二页。INSTALLINGNEWFABRIC

WITHOLDFABRIC用旧网安装(ānzhuāng)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(zhòngyào)步骤EnsureallIsolationsareinplace隔离装置到位 Centertheguideroll导向居中(jūzhōng)Secureguidepalm平安Alignfabric调整…..第三十五页，共五十二页。FabricInstallationTheimportantsteps(cont’d):6.Seaming接缝Startatguidepalmside.从导向端开始AlignMarks调整标记Passthepintletroughtheseamchannel.穿连接线UsetheSeamingassisttominimizetension用接缝辅助使张力最小化Whenpullingthewire,doitslowlytoavoidfrictionheat.慢拉以防止摩擦(mócā)热量的产生Finishbothendsasdemonstrated.7.BringFabricuptoTensionGradually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(zhānglì)Advantages:优点(yōudiǎn)Improvesdryingefficiencybysqueezingairoutbetweenthewebandthedryer.Forcespaperintocloseandconstantcontactwithsteamheatedcylindersincreasingheattransfer.Machinespeedcanbeincreased,steamconsumptiondecreasedresultinginreducedoperatingcosts.第三十七页，共五十二页。FabricTensionDisadvantages:缺点(quēdiǎn)Shortenedfabriclifedueto:Wearfrompittedrolls,overstretching&weakeningBearingwear&driveloadincrease.Rolldeflection:fabricdistortion,CMDpermeabilityvariation.speedvariationbetweencenterandedges.Sheetmarksfromfabricweavepattern.第三十八页，共五十二页。Recommended:推荐(tuījiàn)3–4kN/monnewmachinesFollowmanufacturersspecifications

FabricTension第三十九页，共五十二页。FabricCleaning网的清洁(qīngjié)

Showertypes冲淋方式(fāngshì)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Ensurecansarecooledtoavoidthermalshock.确保已经冷却Crawlspeed.爬行速度(sùdù)Warmwateronshowers.喷淋水升温Dilutecleaningsolution.稀释清洁剂Keepfabricswet.使网湿润Followrecommendedcleaningtime.根据建议清洁时间Thoroughlyrinsefabricwithfreshwater.用清水(qīnɡshuǐ)彻底冲洗网面第四十一页，共五十二页。FabricCleaningAdvantages:优点Consistentdryerperformance.网的可靠性Improvedsheetprofile.提高纸张质量(zhìliàng)Betterpocketventilation.Betterfabriclife.延长使用寿命Reducedsteamusage.降低蒸汽用量Lowerenergycost.降低能源本钱第四十二页，共五十二页。ChangeinPermeability透气性的改变(gǎibiàn)FabricCleaning

第四十三页，共五十二页。Thereisnoquickandeasyanswertothisquestion,dryerfabricsshouldbeinspectedatregularintervals,both:这里(zhèlǐ)没有直接的答复,干网需要经常性的定期检查:DuringShuts,and关机时和WhileRunning运转时FabricInspection/Removal

网的检查(jiǎnchá)/取下第四十四页，共五十二页。DuringShuts关机时FabricInspection

检查(jiǎnchá)第四十五页，共五十二页。Shutdown:关机时Inspectedges检查两边Inspectseam检查接缝(jiēfénɡ)Inspectguidingaction检查导向Inspectstretchroll检查张力辊Inspectfabricbodyfortears,cuts,etc.检查网面磨损等RegularFabric