I-Ultrafiltration System (UF) Isicelo kwi-Electrophoretic Coating Industrial
Ukugquma kwe-Electrophoretic yindlela yokwaleka apho i-workpiece kunye ne-electrode ehambelanayo ifakwe kwi-coating e-soluble yamanzi, exhunywe kumbane, kunye ne-resin, i-pigment kunye ne-filler kwi-coating i-uniform precipitated kwaye ifakwe kumphezulu we-coating njenge-electrode ukwenza ifilimu yokugubungela amanzi-i-insoluble engenawo umbane ngokuxhomekeke kwintsimi eyenziwa ngumzimba. I-Ultrafiltration kunye ne-ultrafilter yindima ebalulekileyo kwinkqubo yokugqoka i-electrophoretic. Ukusetyenziswa okungcono kunye nokukhuthazwa kweteknoloji ye-ED-RO kunokuphucula ngakumbi izinga lokusetyenziswa kwe-electrophoretic coating kunye nemithombo yamanzi, kunye nokunciphisa kakhulu ukukhutshwa kwe-electrophoretic sewage. Ukusetyenziswa ngokuchanekileyo kunye nokusebenza kakuhle kunye nokugcinwa kwezixhobo ze-ultrafiltration, ukuphucula izinga lokusetyenziswa kwe-ultrafiltration system. Injongo yokucoca i-ultrafiltration (i-UF) emva kwe-electrophoresis kukususa ipeyinti edadayo encanyathiselwe kumphezulu we-electrophoretic coating, ukuphucula umgangatho wembonakalo yengubo kunye nokubuyisela i-electrophoretic coating.
Inkcazo emfutshane ye-ultrafiltration system
I-Ultrafiltration (UF) yitekhnoloji yokwahlula inwebu. Yinkqubo yokwahlula isisombululo esekelwe kumgaqo wokuhlola oomatshini, oqhutywa ngumahluko woxinzelelo phakathi kwamacala amabini e-UF membrane. Uxinzelelo lokusetyenziswa ngokuqhelekileyo (0.1 ~ 0.6) MPa, ukwahlukana pore ububanzi 1nm ~ 0.1μm, kunye nokugcinwa ubunzima molekyuli malunga 500 ~ 1000000. Kwinkqubo yepeyinti electrophoretic UF, xa ipeyinti electrophoretic idibana kunye ne-UF inwebu, isisombululo sinokudlula kwi-membrane ye-inorganic ubungakanani be-UF efanayo. kunye ne-pigment ayikwazi ukudlula kwi-membrane ye-UF, kwaye igcinwe kwisisombululo sepeyinti kwaye ihanjiswe emva kwetanki ye-electrophoresis.
Ukusetyenziswa kwe-ultrafilter kwi-electrophoretic coating I-Ultrafilter zixhobo eziphambili kwi-electrophoresis coating line. Injongo ephambili ye-ultrafilter kukufumana amanzi adibeneyo kunye ne-solvent yepeyinti kwi-tank ye-electrophoresis ngokusebenzisa isixhobo se-UF, ukubonelela ngamanzi okuhlamba kwiindawo ze-electrophoresis, kunye nokucoca ipeyinti engaphezulu ye-electrophoretic efakwe kwi-workpiece ye-electrophoresis kwaye ubuyele kwi-tank electrophoresis. Ngale ndlela, ipeyinti ye-electrophoretic evela kumphezulu we-workpiece ingaphinda isetyenziswe, kwaye ukujikeleza okuvaliweyo kunokufezekiswa, ukonga i-30% yeendleko zokuthenga ipeyinti ye-electrophoretic kumashishini. Okwesibini, inxalenye yolwelo lwe-UF inokukhutshwa ukuphelisa ii-ion zokungcola eziziswe kwitanki ye-electrophoresis ngexesha lenkqubo yokupeyinta, ukuze umxholo wokungcola wolwelo olusebenzayo lwetanki ye-electrophoresis unokugcinwa ngaphakathi koluhlu lokuqhuba kunye nexabiso le-pH elicaciswe kwinkqubo, kwaye ulwelo lwe-UF lunokuphinda lusetyenziswe endaweni yamanzi adityanisiweyo njengoko amanzi okuhlamba ahlala kwindawo yokuhlambela, i-electrophoresis eyisiseko yokupeyinta i-electrophoresis. Ithintela umthwalo wokucocwa kwamanzi amdaka okhutshwe ngokucoca ngokuthe ngqo ngamanzi adibeneyo kunye nokunciphisa ukungcoliseka kwendalo.
Umgaqo wokusebenza we-ultrafiltration system I-Ultrafiltration isetyenziselwa ukususa i-ion ezingcolileyo kwi-electrophoretic painting working liquid kwaye ivale ngokufanelekileyo i-cation kunye ne-anion pollution source, ukuqinisekisa ukuzinza kwesisombululo sepende kunye nokunyaniseka kwefilimu yepeyinti. I-Ultrafiltration (UF) yiteknoloji yokwahlula i-membrane permeation enokuthi ihlambuluke, ihlukanise okanye igxininise izisombululo. Inkqubo ye-ultrafiltration inokuqondwa njengenkqubo yokuhlola ehambelana nobukhulu be-membrane pore. Ngoxinzelelo kumacala omabini enwebu njengamandla okuqhuba kunye nenwebu ye-ultrafiltration njengesixhobo sokucoca, phantsi koxinzelelo oluthile, xa isisombululo sidlula kwinwebu yomhlaba, amanzi kuphela, iityuwa ezingaphiliyo kunye neemolekyuli ezincinci zivumelekile ukuba zidlule kwinwebu, ngelixa izinto eziqinileyo, i-colloids, iiproteni kunye ne-microorganisms kunye nezinye ii-macromolecules kwinjongo ye-tishu zivumelekile ukuba zidlule kwi-tishu ye-sociation, njengoko zivunyelwe ukudlula kwi-tishu yokucoca. isisombululo. I-Ultrafiltration ngumsebenzi oqhubekayo, ophantsi koxinzelelo.
Ulwelo lwetanki yepeyinti ye-electrophoresis luhluzwa ngesihluzo se-ultrafiltration kunye ne-membrane ye-ultrafiltration esecaleni phantsi koxinzelelo loxinzelelo, kwaye ihamba ngolwelo ukuya kwitanki ye-ultrafiltration. Malunga ne-30% yokujikeleza kolwelo lwe-ultrafiltration lusuka kwitanki yokuncedisa i-electrophoresis, kwaye emva koko ibuyela kwitanki ye-electrophoresis. Ubuncinci bepeyinti kwi-ultrafiltration system ngamaxesha angama-10 emveliso yamanzi eyiliweyo, kwaye ubuninzi bepeyinti ngamaxesha angama-20 emveliso yamanzi eyiliweyo.
Iinkqubo zokusebenza kwenkqubo ye-Ultrafiltration
1) Qinisekisa ukuba akukho xinzelelo kumbhobho ophumayo, vala ivalve yokubonelela ngepeyinti, ivelufa yokungena yokucoca, ivalve yokucoca, ngolwelo ukuya kwitanki yokugcina kunye nevalve yetanki yokucoca; 2) Vula ivalve yokujikeleza kwepeyinti, ngevalve yokukhupha ulwelo, zonke iivalve zokuhlukanisa i-pressure gauge; 3) Vula indawo epholisayo kunye nevalve yokuphuma ye-ultrafiltration pump shaft seal (uxinzelelo yi-0.2MPa); 4) Qalisa impompo yokubonelela ngepeyinti; 5) Vula kancinci i-inlet yepeyinti ukuze ucofe kancinci ipeyinti kwi-Ultra filtration system; 6) Kancinci uvule ivalve yokungena yepeyinti de uxinzelelo kwisiseko lufike kwi-0.15MPa, kwaye emva koko uvule impompo. 7) Ukulungelelanisa ngokukhawuleza i-valve yokungena kunye ne-outlet kude kube ukuhlukana koxinzelelo kufikelele kwi-0.2MPa, kunye noxinzelelo lwe-inlet kunye ne-outlet yi-0.35MPa kunye ne-0.15MPa ngokulandelanayo. 8) Khangela ukuba i-membrane yokucoca i-Ultra iyavuza. Ukuba kusekho ukuvuza, i-O-ring kunye neqela le-membrane kufuneka itshintshwe ngexesha. I-9) Ixesha lokukhutshwa kwamanzi ahlambulukileyo kufuneka libe ubuncinane ubuncinane be-10min. 10) Vula ivalve nge-liquid kwisixhobo sokugcina, kwaye emva koko uvale ivalve yokukhupha ulwelo.
Izilumkiso zokusetyenziswa kweplanti yokucoca i-ultrafiltrationI-1) Amacandelo e-Ultrafiltration, i-enclosures kunye nezixhobo kufuneka ziphathwe ngokukhawuleza ukukhusela umonakalo; 2) Ixesha lokungaphumeleli kwamandla ngequbuliso okanye okunye ukucinywa okungalindelekanga akuyi kudlula i-2h; Ukuba ixesha lokuvala lide kakhulu, i-membrane ye-ultrafiltration kufuneka ihlambuluke ngokukhawuleza ukuphepha ukubekwa kwepeyinti evimbela i-ultrafiltration membrane element; 3) Rekhoda iiparitha zenkqubo yokucoca kunye nenkqubo ye-electrophoresis ngokubanzi ukukhusela nokusombulula iingxaki; 4) Umahluko woxinzelelo phakathi kokungena kunye nokuphuma kwesihluzi kufuneka ube 0.08MPa, isikhwama sokucoca i-ultrafiltration kufuneka sitshintshwe ngexesha, kwaye ukuchaneka kokucoca kungaphantsi okanye kulingane ne-25μm; 5) Musa ukuqhuba inkqubo ye-ultrafiltration xa i-valve yolwelo ivaliwe; 6) Musa ukuqalisa umpompo xa i-valve yokukhupha ivulekile ukuphepha umonakalo woxinzelelo kwi-membrane ye-ultrafiltration; 7) Inani elikhulu le-filtrate linqatshelwe, kwaye i-valve yokuvula kufuneka ilungiswe phantsi kwexabiso elichaziweyo le-filtrate. I-8) Nciphisa ukuqaliswa kweekhemikhali kwi-procession pretreatment process, kunye ne-conductivity ethontsizayo ye-rinse yokugqibela ngaphambi kokungena kwi-tank electrophoresis kufuneka ibe ngaphantsi kwe-10us / cm.
Inkqubo yokucoca i-ultrafiltration (UF) esetyenziswe emva kwe-electrophoresis kukususa ipeyinti edadayo efakwe kumphezulu we-electrophoretic coating, ukuphucula ukubonakala kwengubo kunye nokubuyisela ipeyinti ye-electrophoretic. Izixhobo ezisetyenzisiweyo ziyafana nezixhobo zokuhlamba amanzi emva kokunyanga kwangaphambili kwe-phosphating. Injongo yokuhlamba okokugqibela ngamanzi acocekileyo kukususa i-ion zokungcola kunye nokuthintela ukuveliswa kokungcola kunye nokufakwa kwefilimu. Ukuze uthintele uphawu lokuhamba kwesibini kwi-gap emva kokucoca ngokungafanelekanga, kuyimfuneko ukuba ube nenkqubo yokuhlamba ngokupheleleyo. Ukuhlamba i-ultrafiltration ngokuqhelekileyo kuqhutyelwa amaxesha angama-2-3 ukunciphisa inani lepeyinti ethathiweyo, umzekelo: Indawo yomzimba wemoto yi-80-100 yeemitha zesikwere, kwaye umzimba ngamnye wemoto uthatha i-7-10L ye-20% yolwelo oluqinileyo. Xa umxholo oqinileyo wokuhlambela kwamanzi okuqala ngu-4% -5%, ukuhlamba kwamanzi okwesibini kunokufikelela ngaphantsi kwe-1%. Umxholo oqinileyo wolwelo olutsha lwe-ultrafiltration lukholisa ukuba ngaphantsi kwe-0.5%. Kwimeko yokususa ii-ion zokungcola kunye nezinto eziqinileyo), ulwelo lwe-UE-RO lusetyenziswa endaweni yamanzi acocekileyo okuhlamba amanzi acocekileyo okugqibela, ukuze kuqatshelwe i-electrophoresis evalwe ngokupheleleyo emva kokucoca, enokunciphisa kakhulu ukukhutshwa kwe-electrophoresis sewage kunye nokuphucula kakhulu izinga lokusetyenziswa kwe-electrophoresis coating. Susa i-ion ezingcolileyo kwisisombululo sokusebenza kwepeyinti ye-electrophoretic kunye ne-cation kunye nomthombo wokungcola kwe-anion ongeniswe yi-circuit evaliweyo esebenzayo ukuqinisekisa ukuzinza kwesisombululo sepeyinti kunye nokunyaniseka kwefilimu yepeyinti. Kwinkqubo yepeyinti ye-electrophoretic, isisombululo se-permeation esiveliswa yi-ultrafiltration siqulethe amanzi kunye ne-solubilizing substance yepeyinti. Le nkqubo yokujikeleza i-loop inokuhlawula ilahleko yepeyinti xa ulwelo lusetyenziswa kwinkqubo yokuhlamba ipeyinti. Ngokusebenzisa ulwelo kunokunciphisa conductivity yepeyinti.
Inkqubo yokucoca kunye namanyathelo ezixhobo ze-electrophoretic ultrafiltration Isisombululo esigxininisiweyo sokucoca kunye nomlinganiselo wamanzi ahlambulukileyo 1: 99, lawula ubushushu phakathi kwe-38 ~ 43 ℃, PH = 2 ~ 2.2, kuba isisombululo sokucoca sinamathele, ngoko kwitanki yokucoca ukusebenzisa ipompo yokucoca ukujikeleza amanzi ahlambulukileyo kwiqondo lokushisa elingaphezu kwe-32 ℃, kwaye emva koko ungeze isisombululo sokucoca ukujikeleza ukuya kwi-35 ℃, ukudibanisa i-hydrochloric , i-valve evulekileyo, ukudibanisa i-hydrochloric PH kunye ne-valve evulekileyo, ukudibanisa i-hydrochloric PH kunye ne-valve evulekileyo kwi-asidi evulekileyo. ukucoca i-membrane core. Gcina i-PH ubuncinane i-2.2 ngexesha lokucoca. Inkqubo ye-ultrafiltration kufuneka iqhutywe ngokungqongqo ngokuhambelana neemfuno zenkqubo. Emva kokutshintsha i-membrane ye-ultrafiltration kwinkqubo ye-ultrafiltration ixesha elithile, kukho ukungaphumeleli: isikhwama sokucoca sivaliwe, kwaye ukuhlukana koxinzelelo lokuhamba kwe-membrane ye-ultrafiltration ayikwazi ukuhlangabezana neemfuno zenkqubo. Ngoko ke, ngenxa yeengxaki ezingentla apha, umqhubi kufuneka alandelwe kwinkqubo yokucoca ngokungqongqo ngokuhambelana neemfuno zokusebenza kunye neeparitha zenkqubo, ukuze ufumane isizathu kunye nokuphelisa iphutha. Ukwandisa inkqubo, ukuphucula inkqubo, ukuphucula umgangatho weemveliso. Amanqaku: 1) Xa i-permeability yecandelo le-membrane ye-ultrafiltration ihla ukuya kwi-70% yexabiso eliqhelekileyo, kufuneka licocwe. Ukuba ukucocwa kulibazisekile, kuya kubangela ukuvala, kwaye kuya kuba nzima ukubuyisela ukuhamba kwasekuqaleni kwiimeko ezinzulu; I-2) Inkqubo ye-ultrafiltration ixhotywe ngefayile echanekileyo yokuthintela ukuvinjelwa kwezinto ze-membrane, ngokuchaneka kwe-25μm. Isikhwama sokucoca kufuneka sitshintshwe ngokungqongqo ngokweemfuno zenkqubo, kwaye isihluzo kunye nombhobho kufuneka zicocwe rhoqo; 3) Ukuvalwa okungalindelekanga ngenxa yokungaphumeleli, ukucocwa kufuneka kuqhutywe ngexesha ngokwemigaqo yokuthintela ukuvaleka kweengxenye ze-membrane; 4) Sebenza ngokungqongqo ngokuhambelana nemigaqo yokusebenza kwaye urekhode iiparamitha zokusebenza ze-UF ultrafiltration system ngokweenkcukacha malunga nokubhekisela.
Amanyathelo okucoca1) Vala i-inlet yepeyinti kunye ne-valve yokuphuma yendibano ye-membrane ye-ultrafiltration ukuba ihlambuluke; 2) Ukukhupha ngokucokisekileyo ipeyinti kwindibano ye-membrane ye-ultrafiltration efunekayo ukucocwa; 3) Vula i-valve yokungena kunye ne-outlet yepompo yokucoca; 4) Vula i-inlet yokucoca kunye ne-valve yokuphuma yombhobho wokucoca kumbhobho we-membrane; 5) Vula i-inlet yokucoca kunye ne-valve yokuphuma kwendibano ye-membrane ye-ultrafiltration efunekayo; 6) Qalisa ipompo yokucoca; 7) Coca ipeyinti kwi-membrane ye-ultrafiltration ngamanzi ahlanjululwayo ahambayo (ukuhlolwa okubonakalayo ngamanzi acacileyo); 8) Lungiselela isisombululo sokucoca ngokwendlela yokucoca (ixabiso le-pH lilungelelaniswe kwi-2 ~ 3, iphepha lokuvavanya), umjikelezo we-2h ~ 3h, uhlambulule kuze kube yilapho ukungena kufikelele kwi-600L / h, kwaye ukhuphe isisombululo sokucoca; 9) Iqondo lokushisa lolwelo ngexesha lokucoca akufanele lidlule i-45 ℃. Ukuba iqondo lokushisa liphezulu kakhulu, umatshini kufuneka umiswe ukupholisa uze uqhubeke nokucoca, kwaye umbane wokucoca kufuneka ukhutshwe; I-10) Coca ngamanzi ahlanjululweyo ahambayo kwi-30min ukukhupha ulwelo lokucoca. Ukuba ukuvaleka kunzulu, ixesha lokucoca linokwandiswa. 11) Vala i-membrane ngamanzi adibeneyo okanye isisombululo se-UF sokusetyenziswa. Inkqubo yokucoca i-ultrafiltration ilawula ukuxinwa kwee-ion zokungcola eziswe kwindawo yokusebenza ukuze kuqinisekiswe umgangatho wokugquma. Ekusebenzeni kwesi sixokelelwano, ingqalelo kufuneka ihlawulwe ekusebenzeni ngokuqhubekayo kwenkqubo emva kokuba iqhutywe, kwaye umsebenzi ophazamisayo unqatshelwe ngokungqongqo ukukhusela ukoma kwe-membrane ye-ultrafiltration. I-resin eyomileyo kunye ne-pigment ifakwe kwi-membrane ye-ultrafiltration kwaye ayikwazi ukucocwa ngokucokisekileyo, eya kuchaphazela kakhulu ukugqithiswa kwamanzi kunye nobomi benkonzo ye-membrane ye-ultrafiltration. Umlinganiselo wokuphuma kwamanzi we-membrane ye-ultrafiltration iyancipha kunye nexesha lokuhamba, ngoko kufuneka icocwe kube kanye ngeentsuku ezingama-30 ~ 40 ezilandelelanayo ukuze kuqinisekiswe ukuba amanzi okucoca afunekayo kwi-ultrafiltration leaching kunye nokuhlamba.
Amagqabantshintshi okuqukumbela Ukwaleka kwe-Electrophoretic yindlela ekhethekileyo yokubumba i-coating, eyona nto isebenzayo iteknoloji yokwakha yokugquma kwamanzi. Uneempawu zokulawula okuzenzekelayo kwamanzi, okungeyona inetyhefu kunye nokulula ngokuzenzekelayo, ngoko ke kuyimfuneko ukuphinda kusetyenziswe ipeyinti ye-electrophoretic kunye nokunciphisa inkunkuma. Electrophoretic ukutyabeka recovery ngokubanzi kwamkela ultrafiltration okanye reverse osmosis, kodwa umgaqo wayo yokusebenza yahluke ngokusisiseko, ukusetyenziswa inkqubo ngokubanzi ineendidi ezimbini: ultrafiltration UF: polymer kunye electrolyte ukwahlukana, kwakhona kunokuthiwa ukupeyinta ukwahlulwa kwamanzi, uxinzelelo ukusebenza malunga 1Kg, malunga 3 amaxesha i-osmoretic enkulu, uxinzelelo lwe-osmoretic. Ukubuyisela umva i-osmosis RO: coca okanye ugxininise kwisisombululo, oko kukuthi, ukuqonda ukwahlulwa kwezinto eziphilayo kunye ne-inorganic matter. Uxinzelelo olusebenzayo malunga ne-25Kg, malunga namaxesha angama-50 uxinzelelo lwe-osmotic, kwaye umngxuma we-membrane uncinci.
