Inkqubo yokubuyisela i-sodium sulfate kwimveliso yebhetri ye-lithium
Kwinkqubo yokuphinda kusetyenziswe iibhetri ze-lithium zenkunkuma kunye neebhetri ze-lithium iron phosphate, i-sulfuric acid kunye ne-caustic soda ziguqulwa zibe ziityuwa ze-sodium sulfate ngenxa yeemfuno zobuchwepheshe. Isisombululo esiluhlaza esiqulethe i-sodium sulfate sibandakanya isisombululo sokubuyisela inkqubo yetyuwa ye-lithium, isisombululo emva kokwenziwa kwe-nickel-cobalt ye-ternary, i-ternary pre-treatment discharge brine, isisombululo emva kokungeniswa kwe-lithium iron phosphate, i-discharge brine ye-lithium iron phosphate, isisombululo emva kokungeniswa kwe-lithium lithium yityuwa ye-lithium lithium, isisombululo esiseleyo sokukhutshwa kwetyuwa ye-nickel-cobalt-manganese, isisombululo emva kokwenziwa kwe-nickel-cobalt-manganese, njl. Ezi zisombululo zicocwa ngokuthe ngqo okanye zicocwe kwinkqubo ye-MVR yokuphuma kwamanzi, kwaye zi-crystallization kunye nokomisa kakhulu ukuvelisa iimveliso ze-sodium sulfate ezingenamanzi. Inkqubo ephambili yemveliso yile ilandelayo:
1. Xuba ulwelo
Ulwelo lokwenziwa kwe-nickel-cobalt oluyi-ternary, i-ternary pre-treated discharge brine, i-lithium iron phosphate emva kokumiswa kwe-lithium, i-lithium iron phosphate discharge brine, i-lithium salt emva kokumiswa kwe-lithium nickel cobalt manganese salt extraction nickel residue, i-nickel cobalt manganese synthesis liquid kunye nezinye izinto ezixutyiweyo.
2. Ukususa ukungcola kunye nokucocwa
Emva kokulungiswa kwesisombululo se-sodium sulfate ngobunzulu be-alkali yolwelo + sodium sulfide ukususa iintsimbi ezinzima (cofa isihluzo ukhuphe inani elincinci le-nickel kunye ne-cobalt slag, ubuyisele kwi-feed ukuze isetyenziswe kwakhona), lungisa i-PH ukuya kwi-5 ~ 7; Emva kokuba uhlalutyo luqinisekisiwe, itanki yolwelo eluhlaza ifakwa, kwaye itanki yolwelo eluhlaza idlala indima yokugcina nokulawula ulwelo eluhlaza ukuze ihlangabezane nokusebenza okuqhubekayo nokuzinzileyo kwe-MVR wastewater evaporator. Itanki yolwelo eluhlaza ixhotyiswe ngepompo yolwelo eluhlaza. Ipompo yolwelo eluhlaza ithutha ngokulinganayo isisombululo samanzi se-sodium sulfate ukuya kwinkqubo yonyango lomoya. Ivalvu yokulawula emva kwepompo yolwelo eluhlaza ilungiswa ukuze kugcinwe ibhalansi phakathi komlinganiselo wokuphakamisa ulwelo eluhlaza kunye nomlinganiselo womoya.
3. Isisombululo sokubuyisela
Iikristale ze-sodium sulfate decahydrate eziveliswa yinkqubo yetyuwa ye-lithium zongezwa kumanzi aqunyiweyo kunye namanzi okuhlamba e-lithium angaphantsi komhlaba ukuze enze isisombululo se-sodium sulfate esiphantse sagcwala, esigcinwa kwitanki eyahlukileyo yolwelo olugciniweyo size sithuthwe ngqo kwinkqubo ye-MVR evaporation and concentration.
4. Ukufuma kwe-MVR kunye nokwakheka kwe-crystallization yesisombululo se-sodium sulfate
Isisombululo samanzi esine-sodium sulfate sitshiswa yi-condensate preheater size singene kwigumbi lokuphuma kwamanzi lenkqubo ye-MVR evaporation crystallization. Inkqubo yokuphuma kwamanzi ye-MVR ixhotyiswe nge-heat exchanger ethe nkqo emva kwepompo yokujikeleza enyanzelekileyo. Phantsi kwesenzo sepompo yokujikeleza enyanzelekileyo, ulwelo lwezinto luhamba ngokujikeleza okunjalo kwigumbi lokuphuma kwamanzi - i-heat exchanger - ipompo yokujikeleza enyanzelekileyo - i-heat exchanger - igumbi lokuphuma kwamanzi, ulwelo lwezinto lufudunyezwa kwi-heat exchanger, kwaye ukwahlulwa kwegesi-ulwelo-oluqinileyo kwenziwa kwigumbi lokuphuma kwamanzi. Ityuwa exineneyo ithunyelwa kwindawo yokuphuma yetyuwa yipompo yokukhupha amanzi ukuze igxininiswe kwaye ihlukaniswe, ize ikhutshwe kwisinki yetyuwa ukuze iqokelelwe kwaye igxininiswe kwaye ihlukaniswe, kwaye ekugqibeleni ikhutshwe kwi-centrifuge ukuze ihlukaniswe nge-centrifugal. I-centrifugal filtrate kunye ne-supernatant yokwahlula ityuwa ziqokelelwa kwitanki ye-filtrate kwaye zithunyelwe kwakhona kwi-evaporator ye-MVR ukuze ikhuphe amanzi kwaye ikristale. I-sodium sulfate eyahlulwe kwi-centrifuge ingena kwinkqubo yokomisa.
5. Ukomisa – Ukupakishwa
I-sodium sulfate efunyenwe kwi-crystallization inamanzi amancinci, kwaye kuxhomekeke kwimeko yokusetyenziswa kwakhona, kugqitywa ukuba kusetyenziswe izixhobo zokomisa ukunciphisa amanzi na. Izixhobo zokomisa zinganyibilikiswa zibe yi-fluidized bed drying (lawula ubushushu bokomisa ~ 150℃), uvule i-vibrating fluidized bed drying kunye nesixhobo sokuqokelela uthuli esixhasayo, emva koko zithuthwe ziye kwi-vibrating fluidized bed drying nge-screw feeder ukuze kufunyanwe iimveliso ze-sodium sulfate ezingenamanzi (umxholo wamanzi