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1、capabletoblockthefineholesonthejetstrip．Itwillinfluencetheproductsqualityandproducingefficiency．Thereforewaterfiltrationandwatercirculationsystemisoneindispensablepartforthespunlacenonwovensline．Watertreatmentsystemalwaysneedsacoupleofunitstotreatthecirculat
2、orywater．Flotationtechnology，sandfilter，bagfilter，beltfilterandexactfilterareoptionalmethods．Sometimeswatertreatmentsystemalsoneedssomeaccessorialmeanssuchasflocculationtechnologyandaddinggermicideinwatertocooperatetherunningoffiltrationequipments．Inpractice
3、，theeffectofthesetreatmentisnotgoodenoughtosatisfythedemandofspunlacenonwovensline．Andthefrequencyofblockingthejetstripisprettyhigh．Thissituationresultindecliningofentanglementforceofthenonwovensproductsaswellasincreasingofwebstripe．Inthispaperweusethewatert
4、reatmenssystemiscomposedofflotation，sandfilter，bagfilterandexactfilter．Takeoutthebandfilter．Thereatetwoprocesses：oneisintegrativeflotation-sandfilterwatertreatmentprocess，exactfilterisnotincluded；theotheroneisseparateflotation—sandfilterwatertreatmentprocess
5、．Wediscoverthatthetwoprocessatefitforproducingdifferentproductsbyourresearch：theseparateflotation-sandfilterwatertreatmentprocessisfitforproducingproductswithviscosefibersandtheintegrativeflotation-sandfilterwatertreatmentprocessisfitforproducingunmixedpolye
6、sterfibersproducts．Theseparateflotation-sandfilterwaterprocessisbetterthantheintegrativeflotation—sandfilterwaterprocessholistically，forexample，itseffluentquantityperdayisless200tonsthanthelatter’S．Theturbidityofwaterwhenproducingproductswithviscosefibersisl
7、essthanthelatter’S．Andthemaintenanceandservicearealsoconvenientandprompt．Turbidityisutilizedtocomparetheeffectbetweenthetwoprocess．Thematerialsandthemicrobeareimportantfactorsofinfluencingthecirculatorywater．HanDongSheng(TextileEngineering)SupervisedbyProf．J
8、inXiangYuKEYWORDS：spunlace，nonwovens，watertreatment，flotation，sandfilter，turbidity東華大學(xué)學(xué)位論文原創(chuàng)性聲明本人鄭重聲明：我恪守學(xué)術(shù)道德，崇尚嚴(yán)謹(jǐn)學(xué)風(fēng)。所呈交的學(xué)位論文，是本人在導(dǎo)師的指導(dǎo)下，獨立進行研究工作所取得的成果。除文中已明確注明和引用的內(nèi)容外，本論文不包含任何其他個人或集體已經(jīng)發(fā)表或撰寫過的作品
