I-Ultrafiltration System (UF) Isicelo Ku-Electrophoretic Coating Industrial
I-Electrophoretic coating iyindlela yokumboza lapho i-workpiece kanye ne-electrode ehambisanayo kufakwa khona ku-coating encibilikayo emanzini, exhunywe kugesi, futhi i-resin, i-pigment ne-filler ekugqokeni ifakwe ngokulinganayo futhi ifakwe ebusweni be-coating njenge-electrode ukuze yenze ifilimu yokuhlanganisa engancibiliki emanzini ngokuncika emkhakheni owenziwe ngamakhemikhali. I-Ultrafiltration kanye ne-ultrafilter iyindima ebalulekile enqubweni yokugqoka i-electrophoretic. Ukusetshenziswa okungcono nokukhuthazwa kobuchwepheshe be-ED-RO kungaqhubeka nokuthuthukisa izinga lokusebenzisa i-electrophoretic coating nemithombo yamanzi, futhi kunciphise kakhulu ukukhishwa kwe-electrophoretic sewage. Ukusetshenziswa okulungile nokuphumelela kanye nokugcinwa kwemishini yokuhlunga, kuthuthukisa izinga lokusebenzisa uhlelo lokuhlunga kwe-ultrafiltration. Inhloso yokuhlanza i-ultrafiltration (UF) ngemva kwe-electrophoresis ukususa upende ontantayo onamathiselwe ebusweni be-electrophoretic coating, ukuthuthukisa ikhwalithi yokubukeka kwe-coating kanye nokubuyisela ukunamathela kwe-electrophoretic.
Incazelo emfushane yesistimu ye-ultrafiltration
I-Ultrafiltration (UF) ubuchwepheshe bokuhlukanisa ulwelwesi. Kuyinqubo yokuhlukanisa isixazululo esekelwe kumgomo wokuhlola ngomshini, oqhutshwa umehluko wengcindezi phakathi kwezinhlangothi ezimbili zolwelwesi lwe-UF. Ingcindezi yokusebenzisa imvamisa (0.1 ~ 0.6)MPa, ukuhlukaniswa kwembobo ububanzi ngu-1nm ~ 0.1μm, kanti isisindo sokugcina samangqamuzana sicishe sibe ngu-500 ~ 1000000. Enqubweni yopende we-electrophoretic UF, lapho upende we-electrophoretic uhlangana nolwelwesi lwe-UF, isixazululo singadlula ku-membrane ye-UF usayizi we-inorganic. futhi i-pigment ayikwazi ukudlula kulwelwesi lwe-UF, futhi igcinwa esixazululweni sikapende futhi ibuyiselwe ethangini le-electrophoresis.
Ukusetshenziswa kwe-ultrafilter ku-electrophoretic coating I-Ultrafilter iyisisetshenziswa esibalulekile kumugqa wokuhlanganisa we-electrophoresis. Injongo eyinhloko ye-ultrafilter iwukuba kutholwe amanzi enziwe i-deionized kanye ne-solvent kapende ethangini le-electrophoresis ngokusebenzisa idivayisi ye-UF, ukuhlinzeka ngamanzi okugeza ezingxenye ze-electrophoresis, nokuhlanza upende we-electrophoretic oweqile onamathiselwe kucezu lokusebenza lwe-electrophoresis bese ubuyela ethangini le-electrophoresis. Ngale ndlela, upende we-electrophoretic ovela endaweni yokusebenza ungaphinda usetshenziswe, futhi ukujikeleza okuvaliwe kungabonakala, konga u-30% wezindleko zokuthenga upende we-electrophoretic wamabhizinisi. Okwesibili, ingxenye yoketshezi lwe-UF ingakhishwa ukuze kuqedwe ama-ion angcolile alethwe ethangini le-electrophoresis ngesikhathi senqubo yokudweba, ukuze okuqukethwe kokungcola koketshezi olusebenzayo lwethangi le-electrophoresis kugcinwe ngaphakathi kwebanga lokuhamba kanye nenani le-pH elishiwo kunqubo, futhi uketshezi lwe-UF lungaphinda lusetshenziswe esikhundleni samanzi akhishwe njenge-electrophoresis waterresissis, upende oluyisisekelo lungenziwa nge-electrophoresis. Igwema umthwalo wokuhlanza amanzi angcolile okukhishwa ngokuhlanza okuqondile ngamanzi angcolile futhi kunciphisa ukungcoliswa kwemvelo.
Umgomo wokusebenza wesistimu ye-ultrafiltration I-Ultrafiltration isetshenziselwa ukususa ama-ion angcolile kuketshezi olusebenzayo lwepende ye-electrophoretic futhi kuvalwe ngokuphumelelayo umthombo wokungcoliswa kwe-cation kanye ne-anion, ukuze kuqinisekiswe ukuzinza kwesixazululo sikapende kanye nobuqotho befilimu kapende. I-Ultrafiltration (UF) ubuchwepheshe bokuhlukanisa i-membrane permeation obungakwazi ukuhlanza, ukuhlukanisa noma ukugxilisa izixazululo. Inqubo ye-ultrafiltration ingaqondwa njengenqubo yokuhlola ehlobene nosayizi we-membrane pore. Ngokucindezela ezinhlangothini zombili zolwelwesi njengamandla okushayela kanye nolwelwesi lwe-ultrafiltration njengesihlungi, ngaphansi kwengcindezi ethile, lapho isixazululo sigeleza phezu kolwelwesi, amanzi kuphela, usawoti we-inorganic kanye nama-molecule amancane avunyelwe ukudlula kulwelwesi, kuyilapho okuqinile okumisiwe, ama-colloid, amaprotheni nama-microorganisms namanye ama-macromolecules ku-membrane ye-membrane, amanzi kuphela, usawoti we-inorganic kanye nama-molecule amancane avunyelwe ukuba adlule kulwelwesi, kuyilapho okuqinile okumisiwe, ama-colloid, amaprotheni nama-microorganisms namanye ama-macromolecules ku-membrane ye-membrane, kuvunyelwe ukudlula inhloso ye-tishu, i-sealization. isisombululo. I-Ultrafiltration wumsebenzi oqhubekayo, onengcindezi ephansi.
Uketshezi lwethangi lokupenda lwe-electrophoresis luhlungwa ngesihlungi se-ultrafiltration kanye nolwelwesi oluseceleni lwe-ultrafiltration ngaphansi komehluko wengcindezi, futhi lugeleza ngoketshezi luye ku-ultrafiltration tank. Cishe u-30% wokujikeleza koketshezi lwe-ultrafiltration usuka ku-electrophoresis auxiliary tank, bese ubuyela ethangini le-electrophoresis. Inani elincane likapende ohlelweni lwe-ultrafiltration izikhathi ezingu-10 zesivuno samanzi esiklanyelwe, futhi inani elifanele likapende liyizikhathi ezingu-20 zesivuno samanzi esiklanyelwe.
Izinqubo zokusebenza zesistimu ye-Ultrafiltration
1) Qinisekisa ukuthi akukho ngcindezi epayipini lokuphuma, vala ivalvu yokufaka upende, ivalvu yokungena yokuhlanza, ivalvu yokukhipha, ngoketshezi oluya ethangini lokugcina kanye nevalvu yethangi yokuhlanza; 2) Vula i-valve yokujikeleza ngopende, ngokusebenzisa i-valve yokukhipha uketshezi, wonke ama-valve okuhlukanisa i-pressure gauge; 3) Vula i-coolent valve kanye ne-valve yokuphuma ye-ultrafiltration futha shaft seal (ingcindezi ingu-0.2MPa); 4) Qala iphampu yokuhlinzeka ngopende; 5) Vula kancane i-inlet kapende ukuze ujove kancane upende ohlelweni lokuhlunga kwe-Ultra; 6) Vula kancane i-valve yokufaka upende kuze kube yilapho ukucindezela kwesisekelo kufinyelela ku-0.15MPa, bese uvula iphampu. 7) Lungisa kancane kancane ama-valve angenayo neyokuphuma kuze kube yilapho umehluko wengcindezi ufinyelela ku-0.2MPa, futhi izingcindezi zokungena nokuphumayo ziyi-0.35MPa kanye ne-0.15MPa ngokulandelanayo. 8) Hlola ukuthi i-Ultra filtration membrane iyavuza yini. Uma kusekhona ukuvuza, iqembu le-O-ring ne-membrane kufanele lishintshwe ngesikhathi. 9) Isikhathi sokukhipha uketshezi oluvuzayo kufanele okungenani sibe yi-10min. 10) Vula i-valve ngokusebenzisa uketshezi kudivayisi yokugcina, bese uvala i-valve yokukhipha uketshezi lokuhlukanisa.
Izinyathelo zokuphepha ekusebenziseni i-ultrafiltration plantI-1) Izingxenye ze-Ultrafiltration, izivalo kanye nezesekeli kufanele ziphathwe kancane ukuvimbela umonakalo; 2) Isikhathi sokuhluleka kwamandla kungazelelwe noma okunye ukuvala shaqa okungalindelekile akumele kudlule i-2h; Uma isikhathi sokuvala siside kakhulu, i-elementi ye-membrane ye-ultrafiltration kufanele ihlanzwe ngokushesha ukuze kugwenywe ukubekwa kopende okuvimbela isici se-ultrafiltration membrane; 3) Qopha imingcele yokuhlanza uhlelo kanye nesistimu ye-electrophoresis ngokuningiliziwe ukuvimbela nokuxazulula izinkinga; 4) Umehluko wengcindezi phakathi kwe-inlet ne-outlet yesihlungi kufanele ube ngu- 0.08MPa, isikhwama sokuhlunga se-ultrafiltration kufanele sishintshwe ngesikhathi, futhi ukunemba kokuhlunga kungaphansi noma kulingana no-25μm; 5) Ungasebenzisi uhlelo lwe-ultrafiltration lapho i-valve ye-liquid ivaliwe; I-6) Ungaqali ipompo lapho i-valve yokukhipha ivuliwe ukuze ugweme ukulimala kwengcindezi kulwelwesi lwe-ultrafiltration; I-7) Inani elikhulu le-filtrate linqatshelwe, futhi i-valve yokuvula kufanele ilungiswe ngaphansi kwenani elishiwo le-filtrate. 8) Nciphisa ukwethulwa kwama-ejenti amakhemikhali enqubweni yokwelashwa kwangaphambili kwensimbi, futhi ukuqhutshwa kokuconsa kwe-rinse yokugcina ngaphambi kokungena ethangini le-electrophoresis kufanele kube ngaphansi kuka-10us/cm.
Isistimu yokuhlanza i-ultrafiltration (i-UF) esetshenziswa ngemva kwe-electrophoresis iwukukhipha upende ontantayo onamathiselwe ebusweni be-electrophoretic coating, ukuthuthukisa ukubukeka kwe-coating kanye nokubuyisela upende we-electrophoretic. Izinto ezisetshenziswayo ziyafana nemishini yokugeza amanzi ngemuva kwe-phosphating yangaphambi kokwelashwa. Inhloso yokugeza okokugcina ngamanzi ahlanzekile ukukhipha ama-ion angcolile futhi kuvimbele ukukhiqizwa kwamabala okungcola kanye nokumbozwa kwefilimu. Ukuze uvimbele uphawu lokugeleza kwesibili kugebe ngemva kokuhlanza okunganele, kuyadingeka ukuba nenqubo yokugeza yokucwiliswa egcwele. Ukugeza kwe-ultrafiltration ngokuvamile kwenziwa izikhathi ezingu-2-3 ukunciphisa inani likapende okhishiwe, isibonelo: Indawo yomzimba wemoto ingamamitha-skwele angama-80-100, futhi umzimba wemoto ngamunye ukhipha u-7-10L we-20% uketshezi oluqinile. Lapho okuqukethwe okuqinile kokugeza kwamanzi kokuqala kungu-4% -5%, ukugeza kwamanzi okwesibili kungase kufinyelele ngaphansi kuka-1%. Okuqukethwe okuqinile koketshezi olusha lwe-ultrafiltration ngokuvamile kungaphansi kuka-0.5%. Endabeni yokukhipha ama-ion angcolile kanye nezinto eziqinile), uketshezi lwe-UE-RO lusetshenziswa esikhundleni samanzi ahlanzekile okugeza amanzi ahlanzekile okokugcina, ukuze kuqashelwe i-electrophoresis yangempela evalwe ngokugcwele ngemva kokuhlanza, enganciphisa kakhulu ukukhishwa kwendle ye-electrophoresis futhi ithuthukise kakhulu izinga lokusebenzisa i-electrophoresis coating. Susa ama-ion angcolile esixazululweni sokusebenza sikapende we-electrophoretic kanye nomthombo wokungcoliswa kwe-cation kanye ne-anion olethwe umjikelezo ovaliwe ophumelelayo ukuze uqinisekise ukuzinza kwesixazululo sikapende kanye nobuqotho befilimu kapende. Kuhlelo lokupenda lwe-electrophoretic, isixazululo sokuvuzwa esikhiqizwe yi-ultrafiltration siqukethe amanzi kanye nento encibilikayo kapende. Lesi simiso sokujikeleza kwe-loop singakhokhela ukulahlekelwa upende lapho uketshezi lusetshenziswa ekugezeni upende. Ngokusebenzisa uketshezi kunganciphisa conductivity kapende.
Inqubo yokuhlanza kanye nezinyathelo zemishini ye-electrophoretic ultrafiltration Isixazululo esigxilisiwe sokuhlanza kanye nesilinganiso samanzi ahlanzekile 1:99, lawula izinga lokushisa eliphakathi kuka-38 ~ 43 ℃, PH = 2 ~ 2.2, ngoba isixazululo sokuhlanza sinamathele, ngakho-ke ethangini lokuhlanza ukusebenzisa ipompo yokuhlanza ukuhambisa amanzi ahlanzekile ezingeni lokushisa elingaphezu kuka-32 ℃, bese wengeza isixazululo sokuhlanza ukuze ujikeleze ku-35 ℃, ukuze ungeze i-hydrochloric evulekile, i-valve ye-PH ukuze ulungise i-hydrochloric ne-PH evulekile ukuhlanza i-membrane core. Gcina i-PH okungenani i-2.2 ngesikhathi sokuhlanza. Isistimu ye-ultrafiltration kufanele isetshenziswe ngokuhambisana ngokuqinile nezidingo zenqubo. Ngemva kokufaka esikhundleni se-membrane ye-ultrafiltration ohlelweni lwe-ultrafiltration isikhathi esithile, kukhona ukwehluleka: isikhwama sokuhlunga sivinjelwe, futhi umehluko wengcindezi yokugeleza we-membrane ye-ultrafiltration awukwazi ukuhlangabezana nezidingo zenqubo. Ngakho-ke, ngokubheka izinkinga ezingenhla, opharetha kufanele alandelwe inqubo yokuhlanza ngokuhambisana ngokuqinile nezidingo zokusebenza kanye nemingcele yenqubo, ukuze athole imbangela futhi asuse iphutha. Ukwandisa inqubo, ukuthuthukisa inqubo, ukuthuthukisa ikhwalithi yemikhiqizo. Amanothi: 1) Lapho ukuvuthwa kwengxenye ye-membrane ye-ultrafiltration kwehla ku-70% yenani elijwayelekile, kufanele lihlanzwe. Uma ukuhlanza kubambezelekile, kuzoholela ekuvinjweni, futhi kuyoba nzima ukubuyisela ukugeleza kwangempela ezimweni ezimbi kakhulu; I-2) Uhlelo lwe-ultrafiltration lufakwe isihlungi esinembayo ukuvimbela ukuvinjelwa kwezakhi ze-membrane, ngokunemba kwe-25μm. Isikhwama sokuhlunga kufanele sishintshwe ngokuqinile ngokwezidingo zenqubo, futhi isisefo nepayipi kufanele kuhlanzwe njalo; I-3) Ukuvalwa okungalindelekile ngenxa yokwehluleka, ukuhlanza kufanele kwenziwe ngesikhathi ngokuvumelana nemithethonqubo yokuvimbela ukuvinjelwa kwezingxenye ze-membrane; 4) Sebenza ngokuhambisana ngokuqinile nemithetho yokusebenza futhi urekhode imingcele yokusebenza yesistimu ye-UF ultrafiltration ngokuningiliziwe ukuze ubhekisele kuyo.
Izinyathelo zokuhlanza1) Vala i-inlet kapende kanye nama-valve okukhipha umhlangano we-ultrafiltration membrane ozohlanzwa; 2) Khipha kahle upende kumhlangano we-membrane we-ultrafiltration okudingeka uhlanzwe; 3) Vula i-valve yokungena kanye ne-outlet yepompo yokuhlanza; 4) Vula i-inlet yokuhlanza kanye ne-valve yokuphuma yepayipi yokuhlanza embhobho we-membrane; 5) Vula ama-valve okuhlanza angenayo kanye ne-outlet yomhlangano odingekayo we-membrane ye-ultrafiltration; 6) Qala iphampu yokuhlanza; I-7) Hlanza upende ku-membrane ye-ultrafiltration ngamanzi ahlanzekile agelezayo (ukuhlola okubonakalayo kungamanzi acacile); 8) Lungiselela isixazululo sokuhlanza ngokusho kwefomula yokuhlanza (inani le-pH lilungiswa ku-2 ~ 3, iphepha lokuhlola), umjikelezo 2h ~ 3h, uhlanze kuze kube yilapho ukungena kufinyelela ku-600L / h, bese ukhipha isisombululo sokuhlanza; 9) Izinga lokushisa loketshezi ngesikhathi sokuhlanza akufanele lidlule ku-45 ℃. Uma izinga lokushisa liphezulu kakhulu, umshini kufanele umiswe ukuze uphole bese uqhubeka nokuhlanza, futhi uketshezi lokuhlanza kufanele lukhishwe; 10) Hlanza ngamanzi agelezayo enziwe deionized 30min ukukhipha uketshezi lokuhlanza. Uma ukuvinjelwa kubi kakhulu, isikhathi sokuhlanza singanwetshwa. 11) Vala i-membrane ngamanzi angcolile noma isisombululo se-UF ukuze sisetshenziswe. Isistimu ye-ultrafiltration ilawula ukugcwala kwama-ion okungcola alethwe kucezu lokusebenza ukuze kuqinisekiswe ikhwalithi yokumboza. Ekusebenzeni kwalolu hlelo, ukunakwa kufanele kukhokhwe ekusebenzeni okuqhubekayo kwesistimu uma isiqalisiwe, futhi ukusebenza kwezikhawu kuvinjelwe ngokuqinile ukuvimbela ukomiswa kwe-ultrafiltration membrane. I-resin eyomile kanye ne-pigment kunamathiselwe kulwelwesi lwe-ultrafiltration futhi akukwazi ukuhlanzwa kahle, okuzothinta kakhulu ukungena kwamanzi kanye nempilo yesevisi ye-membrane ye-ultrafiltration. Izinga lokuphuma kwamanzi le-membrane ye-ultrafiltration liyehla ngesikhathi sokusebenza, ngakho-ke kufanele lihlanzwe kanye izinsuku ezingama-30 ~ 40 ezilandelanayo ukuze kuqinisekiswe amanzi acwengezelayo adingekayo ekucwiliseni nasekuwashweni kwe-ultrafiltration.
Amazwi Okuphetha I-Electrophoretic coating iyindlela ekhethekile yokwakha i-coating, okuwubuchwepheshe obusebenzayo kakhulu bokwakha okufakwa emanzini. Inezici zokulawula okuzenzakalelayo okuncibilika emanzini, okungewona ubuthi futhi kulula, ngakho-ke kuyadingeka ukuvuselela upende we-electrophoretic nokunciphisa imfucuza. I-electrophoretic coating recovery ngokuvamile ithatha i-ultrafiltration noma i-osmosis ehlehlayo, kodwa isimiso sayo sokusebenza sihluke ngokuyisisekelo, ukusetshenziswa kwenqubo ngokuvamile kunezinhlobo ezimbili: i-ultrafiltration UF: ukuhlukaniswa kwe-polymer kanye ne-electrolyte, kungashiwo ukuthi ukuhlukaniswa kwamanzi kapende, ingcindezi yokusebenza engaba ngu-1Kg, ingcindezi ephindwe izikhathi ezingu-3 i-osmoretic. Hlehlisa i-osmosis RO: hlanza noma gxilisa isixazululo, okungukuthi, qaphela ukuhlukaniswa kwento ephilayo nezinto ezingaphili. Ingcindezi yokusebenza icishe ibe ngu-25Kg, okungaba izikhathi ezingama-50 kunomfutho we-osmotic, futhi imbobo yolwelwesi incane.
