Electroplating galvanized flange impembelelo yokusingqongileyo? 

Xa usiva i-galvanized flange, abaninzi abantu bacinga ngokukhawuleza ukukhuselwa kwe-corrosion, mhlawumbi ixabiso. I-engile yokusingqongileyo? Ngokufuthi ukucinga emva kwexesha, okanye okubi ngakumbi, ukungaqondwa kakuhle. Ndibone iivenkile ziphatha iitanki zokuhlanjululwa kwe-electroplating njengolunye umgca wamanzi, kwaye yilapho ibali langempela-kunye neengxaki zangempela-ziqala. Akunjalo nje malunga ne-zinc.

Umba ongundoqo ayisiyiyo nje isinyithi

Masicacise: umthwalo oyintloko wokusingqongileyo ovela kwi-electroplating galvanized flanges ayiqhelekanga i-zinc coating ngokwayo. I-Zinc ayilunganga xa ithelekiswa nezinye iintsimbi zokucola ezifana necadmium okanye ihexavalent chromium. Impembelelo ikwinkqubo. Amanqanaba onyango lwangaphambili-ukukha iasidi yokususwa komhlwa, ukucocwa kwealkaline kwigrisi-kwenza inkunkuma yokuqala. Ujongene neebhafu zeasidi ezichithiweyo ezinobunzima be-iron chlorides kunye neesulfates, kunye neebhafu zealkali ezifakwe ioyile kunye nezinto ezifakwa emanzini. Ukuba oko kuya kukhupha amanzi, ujonge ukuphazamiseka okukhulu kwe-pH kunye nokuncipha kwe-oksijini emanzini. Ndikhumbula ivenkile encinci yemisebenzi kufutshane nepaki yemizi-mveliso ihlawuliswa hayi nge-zinc, kodwa ngemitha ye-pH yokufunda iitshathi kwitanki yokulahla inkunkuma.

Emva koko kuza isitya sokuhlambela. Ngelixa i-alkaline i-non-cyanide i-zinc plating ngoku isemgangathweni (iibhafu ze-cyanide ziyi-nightmare yexesha elidlulileyo, ngokubulela), ukuhlamba kusahla. Izikhanyisi, ii-agent ezixubileyo, kunye nee-agent zokumanzisa ziyaphuka, zenze i-organic compounds ezifuna unyango. I-drag-out-loo filimu encinci yesisombululo ebambelele kwi-flange xa ​​ikhutshwe-yicala elithuleyo. Iyathontsiza, ingcolise umgangatho obalekayo. Sasidla ngokucinga ukuba itreyi yokuthontsiza elula yayanele de uphicotho lomntu wesithathu lubonise ukungcoliseka okunqamlezayo kunye nokupholisa okuvela kwindawo yomatshini. Ibiyingxubakaxaka.

Ulandelelwano lokuhlanjululwa lubalulekile. I-counter-current rinsing igcina amanzi, kodwa ukuba amazinga okuhamba akalinganiswanga ngokufanelekileyo, ususa nje ungcoliseko ukusuka kwelinye itanki ukuya kwelinye. Eyona mpazamo inkulu ndiyibonileyo? Ukucinga ukuba amanzi acocekileyo okuhlamba kuthetha amanzi acocekileyo. Iziqina ezinyibilikisiweyo kunye neentsimbi eziyinkimbinkimbi azibonakali. Ndivavanye amanzi acocekileyo okuhlamba ayesabambe i-20-30 ppm ye-zinc, ngaphezu kwemida yokukhupha. Lolo luhlobo lweenkcukacha ozibamba kuphela ngokuhlalutya rhoqo, ngokufanelekileyo, kungekhona ukujonga okubonakalayo.

Imijelo yeNkunkuma kunye neeNdleko ezifihlakeleyo

Udaka. Leyo yimveliso yesiphelo esingenakuphepheka. Xa unciphisa amanzi amdaka, i-zinc enyityilisiweyo inyuka njenge-hydroxide sludge. Ihlelwa njengenkunkuma enobungozi kwimimandla emininzi ngenxa yesiqulatho sayo sesinyithi kunye nokubanakho ukuvuza. Iindleko azikho nje kwisizukulwana sayo; kukuphatha, amaphepha (ukulandelela okubonakalayo), kunye neentlawulo zokulahla. Ubungakanani obuphakathi beplanga iiflange zokusetyenziswa kolwakhiwo lunokuvelisa iitoni ezininzi zolu daka ngonyaka. Iindleko zokulahla inkunkuma zonyukile. Ndikhumbula iprojekthi apho iindleko zokulahla udaka zaqala ukukhuphisana neendleko zemathiriyeli ekrwada ye-zinc anode. Yayilusuku lokuvuka ukuze ndijonge ukuchacha.

Ukusetyenziswa kwamanzi enye impembelelo efihliweyo. I-Electroplating inxaniwe. Ngomgca we-rack oqhelekileyo, ukuhamba kwamanzi okuhlamba kunokuba mkhulu. Kwiindawo ezinqongopheleyo zamanzi okanye amaxabiso aphezulu, oku kuba yindleko yokusebenza ngokuthe ngqo kunye nomba wozinzo. Sisebenze kunye neziko, ngokungafaniyo noko unokukufumana kwisiseko esikhulu semveliso esinje I-Sunnian Zitai Festener Fishaner Comment Com. eYongnian, apho abasemagunyeni basekuhlaleni baqalisa ukuqinisa iimvume zokutsalwa kwamanzi aphantsi komhlaba. Kwakufuneka batyale imali kwinkqubo yokuhlanjululwa kwe-loop evaliweyo kunye notshintshiselwano lwe-ion, eyayine-capex ephezulu kodwa inqumle i-makeup yabo yamanzi ngaphezu kwe-70%. Yahlawula ngaphantsi kweminyaka emibini.

Amandla yeyona nto ingaxoxwa kangako. Ukufudumeza kwetanki, izilungisi zamandla eDC, umoya wokungenisa umoya wokulawula inkungu—konke kuyadibanisa. I-carbon footprint ibophelela kumxube wamandla wegridi yendawo. Kummandla onikwe amandla ubukhulu becala ngamalahle, impembelelo engangqalanga yokusingqongileyo yokugquma isikhongozeli seeflange inokubaluleka. Isikhewu sokucinga somjikelo wobomi: sigxile kwikhemistri yokuhlamba kodwa kaninzi singayihoyi ukukhutshwa kweplanti yamandla emva kombane oqhuba umgca.

Iinyani ezikwiSiza kunye nokusilela okuSebenzayo

Kwithiyori, iinkqubo zonyango ziyimpendulo. Enyanisweni, badla ngokuphathwa kakubi okanye baphathwa kakubi. Umbono oqhelekileyo kwizityalo ezindala: umqhubi wokucoca amanzi amdaka ukwangumqhubi weforklift. Balahla izilungelelanisi ze-pH ngokusekwe kuvavanyo olukhawulezayo lwemicu, ekhokelela kwiijingi zasendle eziphazamisa inkqubo yemvula. Isiphumo? I-Zinc ityibilika kwi-clarifier, okanye ukudala i-sludge engayi kuhluza ngokufanelekileyo. Ndibone izicoci zokucoca zivalwe yi-gelatinous mess kuba i-pH yayingalunganga ngexesha lemvula, ibopha yonke inkqubo yokuphatha inkunkuma iintsuku.

Emva koko kukho isilingo sokunciphisa iikona. Umphunga kumatanki avulekileyo ukunciphisa umthamo wamanzi amdaka kuvakala njengombono ophantsi. Yiyo, de uqonde ukuba igxile kwizingcolisi kwaye ikhupha yonke into eguqukayo emoyeni ejikeleze ivenkile. Ayisiso isisombululo esihle. Olunye umzamo ongaphumelelanga endiwubonileyo ubandakanya ukusebenzisa ipolymer yomlingo ukuhlanganisa yonke into. Isebenze kakuhle kakhulu, ibamba amanzi amaninzi kangangokuba umthamo we-sludge unyuke nge-40%, yoyisa injongo. Akukho ukulungiswa jikelele; idinga ukulungelelaniswa kwikhemistry ethile yokuhlamba kunye nokuseta ukuhlamba.

Ukufumana izinto eziphathekayo kongeza omnye umaleko. Ivela phi i-zinc anode? Ingaba isuka ekunyibilikisweni kokuqala okanye ukurisayikilishwa? Ukwembiwa kunye nokunyibilikiswa kweenyawo ze-zinc enyulu mkhulu kakhulu. Ukusebenzisa okwesibini, i-zinc anode esetyenzisiweyo inokuthoba kakhulu umthwalo wokusingqongileyo onyukayo. Sisigqibo sokuthengwa kweempahla ezininzi ezingasilawuliyo iivenkile ezininzi zokucoca, kodwa abavelisi abakhulu bakhangela iindawo ezicandiweyo, njengenkampani yokuqinisa elawula ikhonkco layo lokubonelela, ngokuqinisekileyo banakho kwaye kufuneka baqwalasele. Iwebhusayithi ye I-Zitai isantya (https //wwww.ziitasteners.com) ibalaselisa indawo yabo kweyona ndawo inkulu yaseTshayina; abavelisi abakhulu abanjalo banempembelelo yokufuna amagalelo acocekileyo kubathengisi babo bokutya, betyhalela lonke ikhonkco kwiindlela ezingcono.

IMimiselo kunye neThagethi ehambayo

Ukuthobela akume ndawonye. Kwi-EU, izikhokelo ze-REACH kunye ne-ELV zihlala zicinezela iifomyulwa, zijolise kwizikhanyisi ezithile okanye izongezo. E-US, imida yasekuhlaleni (iMisebenzi yoNyango yoMnini Kawonke-wonke) ingaba ngqongqo kunezikhokelo ze-EPA zomdibaniso. Ndibe nomxhasi othobelayo iminyaka, emva koko ummiselo omtsha wendawo wanciphisa umda ovumelekileyo we-zinc ngesiqingatha. Kwafuneka babuyisele iplanti yabo yonke yonyango. I-takeway? Awukwazi nje ukufaka inkqubo kwaye uyilibale. Kufuneka ubeke esweni iintsingiselo zolawulo. Impembelelo yokusingqongileyo imalunga nengozi esemthethweni njengoko imalunga ne-ikholoji.

Ukunika ingxelo kunye nokwenza izinto elubala kuba yinxalenye yempembelelo. Abachaphazelekayo, ukusuka kubathengi ukuya kuluntu, bafuna ukwazi. Ndibone ii-RFQs ezininzi (iSicelo seNtelekelelo) yonikezelo lweflange olubandakanya icandelo leenkqubo zolawulo lokusingqongileyo kunye neziqinisekiso zokulahlwa kwenkunkuma. Itshintsha ukusuka kumcimbi wokuthotyelwa kwe-ofisi ukuya kwisiqinisekiso sokuthengisa kwangaphambili. Ubuchule bomenzi bokuchaza indlela abalawula ngayo ifuthe lokusingqongileyo yeenkqubo ezifana electroplating iba umahluko imarike.

Oku kukhokelela kumbono wokutshintshwa komthwalo. Ngokwenza iflenge imelane ngakumbi nomhlwa ngokufaka igalvanizing, unokwandisa ubomi bayo benkonzo, unciphise ukuphindaphindwa kokutshintshwa kunye neempembelelo zokwenziwa kwemveliso ezinxulumeneyo. Olu lurhwebo olulungileyo lomjikelo wobomi. Kodwa ukuba inkqubo yokucwenga ngokwayo imdaka, unokuba udala ingxaki enkulu ngaphambili ukusombulula enye encinci kamva. Ibhalansi ithambile kwaye ifuna uvavanyo olunyanisekileyo, lomjikelo opheleleyo, hayi nje ugqaliselo kumanzi amdaka angoko le workshop.

Ukujonga ukuNciphisa: Akukho ziBullets zeSilver, ukusebenza nzima nje

Ngoko, yintoni esebenzayo? Okokuqala, ukunciphisa umthombo. Ukuphucula i-chemistry yokuhlamba ukwandisa ubomi, ukuphucula i-racking ukunciphisa ukutsalwa ngaphandle, kunye nokufakela iirinses zokutshiza okanye iimela zomoya phambi kokuba itanki inqumle ungcoliseko kwindawo nge-30% okanye ngaphezulu. Bubunjineli obungenamdla, kodwa lelona nyathelo lisebenzayo.

Okwesibini, ukuchacha. Utshintshiselwano lwe-ion, ukubuyiswa kwe-evaporative, okanye itekhnoloji ye-membrane inokutsala i-zinc kunye namanzi abuyele kwinkqubo. Uqoqosho ngoku lulungile kwiimeko ezininzi. Undoqo kukuyila ukubuyisela umjelo wakho wenkunkuma ethile. Inkqubo eyenzelwe ukuhlamba i-chloride ephezulu inokungaphumeleli kwibhafu esekelwe kwi-sulfate.

Ekugqibeleni, unyango olufanelekileyo lokuphela kombhobho, ubungakanani obuchanekileyo kwaye luqhutywe ngabasebenzi abaqeqeshiweyo. Lo ngumnatha wokhuseleko. Ukusebenzisana nomphathi wenkunkuma ohloniphekileyo akuxoxiswana. Injongo kufuneka ibe kukwenza lo mnatha ube mncinane kangangoko ngamanyathelo amabini okuqala.

Ekugqibeleni, impembelelo yokusingqongileyo ye-electroplating galvanized flanges ngumngeni olawulekayo wemizi-mveliso, kodwa ikude kakhulu. Ifuna ukuqonda kwenqanaba lenkqubo engaphaya kokugqiba kwicala. Kumalunga nekhemistri ekwitanki, amanzi e-rinse, i-sludge emgqomeni, kunye nezigqibo ezenziwa yonke imihla kumgangatho wevenkile. Ukungayinanzi kuyingozi; ukuyilawula yinxalenye nje yokwenza imveliso ehlala ixesha elide ngokuthembekileyo. Amaziko oshishino, afana nalawo aseHandan apho iinkampani ezifana neZitai zisebenza khona, anomlinganiselo wokuqhuba utshintsho olunentsingiselo ukuba kugxininiswa apho. Akunjalo malunga nokuphelisa inkqubo, kodwa malunga nokudibanisa iindleko zayo zokwenyani-zendalo kunye nokusebenza-kwindlela esakha ngayo izinto.