Polycrylamideisengezo esisetshenziswa kabanzi embonini yamaphepha. I-PolyAcrylamide (Pam), njenge-polymer esolulekayo yamanzi, ine-floccation enhle kakhulu, ukuqina, ukuhlakazeka kanye nezinye izakhiwo. Izosetshenziswa ezinqubweni eziningana ezahlukahlukene ngemisebenzi ehlukene. Embonini yamaphepha ephakethe, uPam udlala indima ebaluleke kakhulu. Kulethe izinzuzo ezinkulu zezomnotho embonini yangobupaper ngendlela yokwenza ngcono izakhiwo zePulp nokwandisa ukusebenza kahle kwemishini yamaphepha. Le ndatshana izodingida ngokuningiliziwe ukusetshenziswa kwe-polylacrylamide ekukhiqizeni amaphepha nomphumela wayo ekuthuthukiseni ukusebenza kahle kokukhiqiza.
Izakhiwo eziyisisekelo nemisebenzi ye-polyyamide
I-PolyAcrylamide iyi-polymer ephakeme ehlukaniswe ngehlukaniswe ngezinhlobo ze-anion, anionic, ze-cationic kanye ne-amphoteric ngokwezindawo zayo ezikhokhiswayo. Lapho uPam ehlanza emanzini, futhi isakhiwo salo eside sesikhathi eside sikwenza ukwazi ukuba nemisebenzi emihle kakhulu njengokuthintana, ukuqina, usizo lokugcina, nosizo lwe-Filtration. Embonini yamaphepha, i-polylacrylamide isetshenziswa ikakhulukazi kulezi zinto ezilandelayo:
1. Ukugcina Usizo:
Ama-molecule e-pam anesakhiwo eside kaketanga futhi angafakwa ama-adderbed ebusweni bemicu kanye nama-fillers ukwakha amabhuloho. Ngaleyo ndlela kuthuthukisa izinga lokugcina labasizi nemicu ephepheni yeWebhu. Yehlisa ukulahleka kwe-fiber emanzini amhlophe bese unciphisa ukulahleka kwezinto ezingavuthiwe. Ngokwandisa inani lokugcinwa kwezinga le-fillers nemicu, izakhiwo zephepha ezibonakalayo ezifana nokubushelelezi, ukuphrinta, namandla kungathuthukiswa.
2. Usizo lokuhlunga:
Thuthukisa ukusebenza okulona okokwenza i-pulp, ukusheshisa inqubo yokuhlunga yamanzi futhi unciphise ukusetshenziswa kwamandla.
3. I-flecculontant:
Sheshisa i-dehydration dehydration: I-PAM ingafaka ngempumelelo imicu emincane, ama-filler kanye nezinye izinto ezimisiwe ku-pulp ukwakha ama-Flocs amakhulu
Thuthukisa Ikhwalithi Yamanzi: UPam ungasusa ngempumelelo ama-solids amisiwe kanye nento e-organic kuma-wastewater, anciphise i-bod kanye ne-cod emanzi angcolile, athuthukise ikhwalithi yemvelo, futhi anciphise ukungcoliswa kwamanzi.
4. Dispersant:
Vikela i-Fibre Agglomeraling: I-PAM ingavimbela ngempumelelo nge-fib agglomeration ku-pulp, ithuthukise ukufana kwe-pulp, futhi ithuthukise ikhwalithi yephepha.
Ukusetshenziswa kwe-Polylamide kubuchwepheshe be-papermaking
1. Isigaba sokulungiselela i-Pulp
Ngesikhathi senqubo yokulungiselela i-PULP, imicu emihle kanye nama-fillers alahleka kalula ngamanzi amdaka, adale imfucuza yezemvelo nokungcoliswa kwemvelo. Usebenzisa i-cationic polyyalide njenge-retention Aid ingabamba ngempumelelo futhi ilungise imicu emincane nama-filler epulpini ngokushaja ukungathathi hlangothi nokubopha. Lokhu akukunciphisi ukulahleka kwemicu, kepha futhi kunciphisa ukulayishwa kokwelashwa kwendle.
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Ohlelweni lwephepha lomshini we-WET End System, i-Sushydration esheshayo iyisihluthulelo sokwenza ngcono ukusebenza kahle kokukhiqiza. I-anionic noma i-anionic polylamide ingahle isetshenziswe njengosizo lokuhlunga ukwenza kube lula ngamanzi ukubalekela ekwakhekeni kwenethiwekhi ye-fiber ngokwenza ngcono i-floccation phakathi kwemicu. Le nqubo iyekala kakhulu isikhathi sokuphelelwa amandla ngenkathi inciphisa ukusetshenziswa kwamandla ngesikhathi sesigaba sokomiswa.
3. Isigaba sangemuva
Njengomhlakazeli, i-polylacrylamide ingavimba ngempumelelo ukuqunjelwa kwe-fiber futhi ithuthukise ukufana kanye nokubumbana kwephepha. Ngokukhetha ngokucophelela isisindo se-molecular bese ukhokhisa ubuningi be-pam, izakhiwo ezibonakalayo zephepha eliqediwe, njengamandla ashubile kanye nokuqina kwezinyembezi, nakho kungenziwa. Ngaphezu kwalokho, i-polylacrylamide nayo ingathuthukisa umphumela we-coation yephepha elihlanganisiwe futhi yenze ukusebenza kwephepha kube ngcono.
Izinzuzo ezibalulekile zePoyacrylamide ekuthuthukiseni ukusebenza kahle kokukhiqiza
1. Yehlisa ukulahleka okungavuthiwe okubonakalayo
Ukusetshenziswa kwe-Retation Aids kuthuthukisa kakhulu izinga lokugcina lemicu emihle kanye nama-filler ku-pulp, kunciphisa ukusetshenziswa okubonakalayo okungavuthiwe, futhi kusindise ngokuqondile izindleko zokukhiqiza.
2. Shesha inqubo yokuphelelwa amandla
Ukwethulwa kwengculazi yokuhlunga kwenza inqubo yokushintshana esebenza kahle kakhudlwana, ngaleyo ndlela yandisa isivinini sokusebenza kwephepha nokunciphisa umjikelezo wokukhiqiza. Lokhu akugcini nje kukhuphule amandla okukhiqiza okuma-yodwa, kepha futhi kunciphisa ukusetshenziswa kwamandla.
3. Yehlisa ingcindezi yokwelashwa kwamanzi angcolile
Ngokwenza ngcono umphumela we-floccution, i-polylacrylamide inganciphisa ngempumelelo okuqukethwe ama-solids amiswe emanzini angcolile, kunciphisa ukulayisha kwezindawo zokwelashwa kwendle ezivela emthonjeni kanye nokunciphisa izindleko zokuvikela ezemvelo zamabhizinisi.
4. Thuthukisa ikhwalithi yephepha
Ukusetshenziswa kwabahlakazayo kwenza ukusatshalaliswa kwephepha kwephepha umfaniswano ofanayo, kuthuthukisa kakhulu izakhiwo zomzimba nezobukwayo zephepha, futhi kuthuthukisa ukuncintisana kwemakethe komkhiqizo.
Izici ezithinta umphumela wokusebenzisa we-polylacide
Ukuze unikeze ukudlala okugcwele ekusebenzeni kwama-polylacrylamide, lezi zinto ezilandelayo zidinga ukugxila ku:
1. Ukukhetha imodeli ye-Pam
Izinqubo ezahlukahlukene ze-papermaking kanye nezinhlobo zamaphepha zinezidingo ezihlukile zesisindo se-molecular futhi zikhokhise ubungako bePam. Isisindo esiphakeme se-molecular pam silungele i-floccation kanye nosizo lokuhlunga, ngenkathi i-molecular yesisindo ephansi ilungele ukuhlakazeka.
2. Ukungeza inani kanye nokungeza indlela
Inani le-pam elingeziwe kumele lilawulwe ngokunembile. Amanani amaningi angadala imiphumela emibi, efana nokuthinta ukusebenza kwamaphutha noma izindleko zokwanda kokukhiqiza. Ngasikhathi sinye, kufanele kusetshenziswe indlela yokungezwa ngokufanayo ukugwema ukuhlanganiswa kwendawo okuthinta umphumela.
3. Izimo zenqubo
Izinga lokushisa, izimo zamanzi zonke zithinta ukusebenza kwe-PAM. Isibonelo, i-cationic pam isebenza kahle ngokungathathi hlangothi ezimweni ezi-acidic kancane, kanti i-anionic pam ilungele izindawo ze-alkaline.
Njengesengezo esisebenzayo embonini yangemuva, ama-polylacrylalide adlala indima ebalulekile ekwenzeni ngcono ukusebenza kahle kokukhiqiza, ukunciphisa izindleko zokukhiqiza kanye nokwenza ngcono izindleko zomkhiqizo nge-floccution yayo enhle, ukugcinwa, ukuthokoziswa kanye nokuhlubuka kwezindawo. Kuzinhlelo zokusebenza ezisebenzayo, izinkampani zidinga ukukhethwa kahle futhi zisebenzise izimo zokusebenzisa uPam ngokuya ngezimpawu zazo zenqubo futhi zidinga ukufeza izinzuzo ezinhle kakhulu zezomnotho nezemvelo.
Isikhathi sePosi: Nov-28-2024
