Inqubo yokubuyisela i-sodium sulfate ekukhiqizweni kwebhethri le-lithium

Enqubweni yokuvuselela kabusha amabhethri e-lithium e-ternary kanye namabhethri e-lithium iron phosphate, i-sulfuric acid kanye ne-caustic soda ngokungenakugwenywa ziguqulwa zibe usawoti we-sodium sulfate ngenxa yezidingo zobuchwepheshe. Isixazululo esiluhlaza esiqukethe i-sodium sulfate sihlanganisa kakhulu isisombululo sokubuyisela uhlelo lukasawoti we-lithium, isixazululo ngemuva kokwenziwa kwe-nickel-cobalt ye-ternary, i-ternary pre-treatment discharge brine, isixazululo ngemuva kokungeniswa kwe-lithium iron phosphate, i-discharge brine ye-lithium iron phosphate, isixazululo ngemuva kokungeniswa kwe-lithium lithium yi-lithium lithium salt, isixazululo esisele sokukhishwa kukasawoti we-nickel-cobalt-manganese, isixazululo ngemuva kokuhlanganiswa kwe-nickel-cobalt-manganese, njll. Lezi zixazululo zihlanzwa ngqo noma zihlanzwe ohlelweni lokuhwamuka lwe-MVR, kanye ne-crystallization kanye nokomisa kakhulu ukukhiqiza imikhiqizo ye-sodium sulfate engamanzi. Inqubo eyinhloko yokukhiqiza imi kanje:

1. Hlanganisa uketshezi
Uketshezi lokwenziwa kwe-nickel-cobalt oluyi-ternary, i-ternary pre-treated discharge brine, i-lithium iron phosphate ngemva kokuxazulula i-lithium, i-lithium iron phosphate discharge brine, i-lithium salt ngemva kokuxazulula i-lithium nickel cobalt manganese salt extraction nickel residue, i-nickel cobalt manganese synthesis liquid kanye nezinye iziphuzo ezixubile.

2. Ukususa ukungcola nokucwengisisa
Ngemva kokulungiswa kwesisombululo se-sodium sulfate nge-alkali ewuketshezi + ukujula kwe-sodium sulfide ukuze kususwe izinsimbi ezisindayo (cindezela isihlungi ukhiphe inani elincane le-nickel ne-cobalt slag, ubuyisele ekudleni ukuze kusetshenziswe kabusha), lungisa i-PH ibe ngu-5 ~ 7; Ngemva kokuthi ukuhlaziywa sekuqinisekisiwe, ithangi loketshezi olungahluziwe liyafakwa, bese ithangi loketshezi olungahluziwe lidlala indima yokugcina nokulawula uketshezi olungahluziwe ukuze kuhlangatshezwane nokusebenza okuqhubekayo nokuzinzile kwe-evaporator yamanzi amdaka e-MVR. Ithangi loketshezi olungahluziwe lifakwe iphampu yoketshezi olungahluziwe. Iphampu yoketshezi olungahluziwe ithutha ngokulinganayo isixazululo samanzi se-sodium sulfate iye ohlelweni lokwelapha ukuhwamuka. I-valve yokulawula ngemuva kwephampu yoketshezi olungahluziwe iyalungiswa ukuze kugcinwe ibhalansi phakathi kwenani lokuphakamisa loketshezi olungahluziwe kanye nenani lokuhwamuka.

3. Isixazululo sokubuyisa
Amakristalu e-sodium sulfate decahydrate akhiqizwa uhlelo lukasawoti lwe-lithium ayengezwa emanzini ahlanganisiwe kanye namanzi okugeza e-lithium angaphansi komhlaba ukuze akhe isisombululo se-sodium sulfate esicishe sigcwale, esigcinwa ethangini elihlukile lesitokwe bese sithuthwa ngqo ohlelweni lwe-MVR lokuhwamuka nokuhlushwa.

4. Ukuhwamuka kwe-MVR kanye nokwakheka kwe-crystallization yesisombululo se-sodium sulfate
Isixazululo samanzi esiqukethe i-sodium sulfate sishiswa yi-condensate preheater bese singena ekamelweni lokuhwamuka kohlelo lwe-MVR evaporation crystallization. Uhlelo lwe-MVR evaporation lufakwe i-heat exchanger evundlile ngemuva kwe-forced circulation pump. Ngaphansi kwesenzo se-forced circulation pump, uketshezi lwezinto lugeleza ku-circulation enjalo eceleni kwe-heat exchanger - i-heat exchanger - i-forced circulation pump - i-heat exchanger - i-evaporation chamber, uketshezi lwezinto lufudunyezwa ku-heat exchanger, bese ukuhlukaniswa kwe-gas-liquid-solid kutholakala ekamelweni lokuhwamuka. I-concentrated salt slurry ithunyelwa endaweni yokukhipha usawoti yi-discharge pump ukuze iqoqwe futhi iqoqwe futhi ihlukaniswe, bese ekugcineni ikhishwa ku-centrifuge ukuze ihlukaniswe ku-centrifugal. I-centrifugal filtrate kanye ne-salt separator supernatant ziqoqwa ethangini le-filtrate bese zithunyelwa ku-evaporator ye-MVR ukuze i-evaporator ukuze i-evaporator iqoqwe futhi i-crystallization. I-sodium sulfate ehlukaniswe ne-centrifuge ingena ohlelweni lokomisa.

5. Ukomisa - Ukupakisha
I-sodium sulfate etholakala ngokwenziwa kwekristalu iqukethe inani elincane lamanzi, futhi kuye ngesimo sokusetshenziswa kabusha, kunqunywa ukuthi imishini yokomisa izosetshenziswa yini ukunciphisa amanzi. Imishini yokomisa ingafakwa uketshezi embhedeni (lawula izinga lokushisa lokomisa ~ 150℃), ivule umbhede oncibilikayo kanye nedivayisi yokuqoqa uthuli esekelayo, bese ithuthwa iye komiswa uketshezi embhedeni oncibilikayo nge-screw feeder ukuze kutholakale imikhiqizo ye-sodium sulfate engamanzi (okuqukethwe kwamanzi