Ukulinganisa Ukugxila Kwe-Pulp
Ukuhlushwa kwe-pulp esifubeni somshini kufinyelela ku-2.5–3.5% ngokujwayelekile. Amanzi ayadingeka ukuze kuncishiswe i-pulp ibe yizinga eliphansi ukuze kususwe imicu ehlakazekile kahle futhi kususwe ukungcola.
Ngobaimishini ye-fourdrinier, ukuhlushwa kwe-pulp okungena ku-mesh kungu-0.3–1.0% ngokujwayelekile ngokwezici ze-pulp, izakhiwo zemishini, kanye nekhwalithi yephepha. Kulesi sigaba, izinga lokuhlushwa lihambisana nokuhlushwa kwe-pulp okudingekayo ku-mesh, okusho ukuthi ukuhlushwa okufanayo kusetshenziselwa ukuhlanza, ukuhlunga, kanye nokwakheka ku-mesh.
Ukuhlushwa kwe-pulp ku-mesh kuphansi kuya ku-0.1–0.3% kuphela kwemishini yesilinda. Izinga lokugeleza ngokusebenzisa ukuhlanzwa nokuhlunga liphakeme kunezidingo ze-pulp enjalo yokuhlushwa okuphansi. Ngaphezu kwalokho, kudingeka amadivayisi amaningi okuhlanza nokuhlunga ukuze kucutshungulwe i-pulp yokuhlushwa okuphansi, okudinga imali eningi, isikhala esikhulu, amapayipi ayinkimbinkimbi, kanye nokusetshenziswa kwamandla okuphezulu.
Imishini yesilinda ivame ukusebenzisainqubo yokuxuba enezigaba ezimbili,lapho ukuhlushwa kwehliswa ku-0.5 ~ 0.6% kuqala ukuze kuhlanzwe futhi kuhlungwe kuqala; bese kwehliswa kuze kube yilapho kugxilwe khona ngaphambi kokungena ku-mesh ebhokisini lokuzinzisa.
Ukuxutshwa kwe-pulp kusebenzisa amanzi amhlophe nge-mesh ngendlela evamile yokonga amanzi nokubuyisa imicu emincane, ama-filler, namakhemikhali avela emanzini amhlophe. Ukubuyiselwa kwamanzi amhlophe kuyinzuzo yokonga amandla emishini edinga ukufudumeza i-pulp.
Izici Eziyinhloko Ezithinta Ukuhlushwa Kwe-Diluted Pulp
Izinguquko Ekugxilweni Kwe-Pulp Ukungena Ebhokisini Elilawulayo
Ukushintshashintsha kokuvumelana okuvela ekushayweni noma izinguquko ohlelweni oluphukile kungabangela ukwehluka kokuhlushwa kwe-pulp. Ukujikeleza kwegazi okungekuhle ezifubeni zomshini kungaholela ekuhlushweni kwe-pulp okungaguquki ezindaweni ezahlukene, okubangela ukungazinzi okwengeziwe.
Ukugeleza Kokwenqabas kuUkuhlanzwa kanyeukuhlunga
Ukwenqatshwa okuvela ekuhlanzweni nasekuhlungweni kuvame ukubuyiselwa ohlelweni ngamanzi axutshiwe. Ukwehluka komthamo kanye nokuhlushwa kwalokhu kwenqatshwa kuncike ekusebenzeni kwemishini yokuhlanza nokuhlunga kanye namazinga oketshezi ezindaweni zokungena zepompo.
Lezi zinguquko zibangela umthelela ekugxilweni kwamanzi amhlophe asetshenziselwa ukuncibilikisa, bese kuba nomphumela ekugxilweni kokugcina kwe-pulp. Izinkinga ezifanayo zingavela ezinhlelweni zokubuyisa amathangi okugcwala komshini wesilinda.
Ukwehluka kokuhlushwa kwe-pulp okuxutshwe kungathinta kokubili ukusebenza komshini wephepha kanye nekhwalithi yokugcina yephepha. Ngakho-ke, kubalulekile ukuqapha ngokucophelela ukuhlushwa kwe-pulp ngei-pulp yemitha yokuvumelanaekhiqizwe yi-I-Lonnmeterngesikhathi sokukhiqiza bese ulungisa ukungena ebhokisini elilawulayo ukuze ugcine amazinga azinzile. Imishini yamaphepha yesimanje ivame ukusebenzisa amathuluzi azenzakalelayo ukuze:
- Lungisa ngokuzenzakalelayoukuhlushwa kwe-pulpukungena ebhokisini lokulawula.
- Lungisa ukungena kwemali ngokusekelwe ezinguqukweni zesisindo sephepha kanyeukuhlushwa kwe-pulp ye-headbox.
Lokhu kuqinisekisa ukuhlushwa kwe-pulp okuzinzile.
Izinzuzo Zokulungiswa Kokuhlushwa Kwe-Diluted Pulp
Ukulawulwa kokuhlushwa kwe-pulp exutshwe kahle kusiza kokubili ekusebenzeni kahle komshini wephepha kanye nokugcinwa kwekhwalithi yephepha.
Kwemishini Yesilinda
Uma i-pulp inezinga eliphansi lokushaya futhi ikhipha amanzi ngokushesha, amazinga amanzi angaphakathi nangaphandle esigabeni se-mesh ayancishiswa, okwenza kube buthaka ukunamathela kwesendlalelo sephepha ku-mesh. Lokhu kwandisa umphumela wokuhlushwa, kunciphisa ukugcwala, futhi kwandisa umehluko wejubane phakathi kwe-pulp ne-mesh, okuholela ekwakhekeni kwephepha okungalingani.
Ukuze kulungiswe lokhu, ukusetshenziswa kwamanzi amhlophe kuyandiswa ukuze kwehliswe ukugcwala kwe-pulp, kwandiswe izinga lokugeleza liye ku-mesh. Lokhu kuphakamisa umehluko wezinga lamanzi, kwandiswe ukugcwala, kunciphisa imiphumela yokugcwala, futhi kunciphisa umehluko wejubane, ngaleyo ndlela kuthuthukiswe ukufana kweshidi.
Kwemishini ye-Fourdrinier
Amazinga aphezulu okushaya enza kube nzima ukukhipha amanzi, anwebe umugqa wamanzi, andise umswakama ephepheni elimanzi, futhi aholele ekufakweni noma ekuchotshozweni ngesikhathi sokucindezela. Ukucindezeleka kwephepha emshinini kunciphisa, futhi ukushwabana ngesikhathi sokomisa kuyanda, okubangela amaphutha njengokugoba kanye nemibimbi.
Ukuze kunqotshwe lezi zinselele, ukuhlushwa kwe-pulp okuncishisiwe kungandiswa ngokunciphisa ukusetshenziswa kwamanzi amhlophe, kuncishiswe izinkinga zokukhipha amanzi.
Ngakolunye uhlangothi, uma izinga lokushaya liphansi, imicu ivame ukugobhoza, futhi ukuphuma kwamanzi kwenzeka ngokushesha kakhulu ku-mesh, okuthinta ukufana kwephepha. Kulesi simo, ukusetshenziswa kwamanzi amhlophe okwengeziwe ukuze kwehliswe ukugcwala kwe-pulp exutshwe kunganciphisa ukugobhoza futhi kuthuthukise ukufana.
Isiphetho
Ukuxuba kuyindlela ebalulekile ekwenzeni amaphepha. Ekukhiqizeni, kubalulekile:
- Landelela ngokucophelela futhi ulawule ngokuqinile izinguquko ezincishisiweukuhlushwa kwe-pulpukuqinisekisa ukusebenza okuzinzile.
- Naka izinguquko zekhwalithi yomkhiqizo kanye nezimo zokusebenzafuthi, uma kudingeka, lungisa ukuhlushwa kwe-pulp njengethuluzi lokunqoba ubunzima obufana nalezo okukhulunywe ngazo ngenhla.
Ngokuphatha ngempumelelo ukuxutshwa kwe-pulp, ukukhiqizwa okuzinzile, iphepha elisezingeni eliphezulu, kanye nokusebenza okuhle kakhulu kungatholakala.
Isikhathi sokuthunyelwe: Jan-24-2025
