I-cyanidation yenye yeendlela eziphambili zokuzuza kwimigodi yegolide, kwaye inokohlulwa ibe ziindidi ezimbini: i-cyanidation evuselelayo kunye ne-percolation cyanidation.Kule nkqubo, inkqubo yokuxuba igolide ye-cyanide ye-cyanide ibandakanya ngokukodwa inkqubo yokutshintshwa kwe-cyanide-zinc (CCD kunye neCCF) kunye ne-cyanide carbon slurry engacocwanga (CIP kunye ne-CIL).Isixhobo sokwahlula igolide esisetyenziswa ngokuqhelekileyo sisixhobo sokutshintsha i-zinc powder, itanki yokuvuza, ukusetyenziswa okuphantsi kwenkqubo yokucoca i-electrolysis.
1. Isixhobo sokubuyisela i-zinc powder yindlela esebenzisa i-zinc powder ukukhupha igolide kulwelo oluxabisekileyo kwinkqubo yokutshintshwa kwe-cyanide-zinc.Uyilo lwangoku lujolise ikakhulu kwisixhobo sokuzuza igolide kwintsimbi ekrwada equlethe umxholo wesilivere ephezulu kwintsimbi yegolide.Emva kokucoca ulwelo oluxabisekileyo kunye nokususa ioksijini, isixhobo sokubuyisela i-zinc powder siyongezwa ukufumana udaka lwegolide.Xa i-zinc powder (isilika) isetyenziselwa ukutshintsha imvula kunye nokubuyisela igolide, into ebizwa ngokuba yi-cyanide-zinc replacement method (CCD kunye neCCF) ingasetyenziselwa ukuvelisa, okanye i-zinc powder replacement ingasetyenziselwa ukunyanga izisombululo ezibiza kakhulu (i-leaching solutions). ).Ngokubanzi, ukongeza kwimigodi yegolide enomxholo wesilivere ephezulu, izixhobo zokutshintsha umgubo we-zinc nazo zinokusetyenziselwa ukusetyenzwa kwezigxina zegolide ezifuna ukuphucula umgangatho wazo.
2. I-double impeller leaching stirring tank I-double impeller leaching stirring tank sisixhobo esisetyenziswa ngokuqhelekileyo kwi-carbon slurry gold extraction process (indlela ye-CIP kunye ne-CIL).Ngaphantsi kokutsala kunye nesenzo sokuvuselela i-impeller ephindwe kabini, i-slurry igeleza ihla ukusuka kwiziko, isasazeka kwiiplate ezijikelezayo zokuthambisa, ifake umoya ekupheleni kwe-shaft, ixube kunye ne-slurry kwaye ijikeleze phezulu.Esi sisombululo sifanelekile kwizicelo ezinobunzima obuthile obuncinci, i-viscosity ephantsi kunye nesantya esincinci semvula., xa ubukhulu be-ore particle bungaphezu kwe-200 mesh kunye ne-concentration yesisombululo segolide ingaphantsi kwe-45%, umxube omisiweyo ofanayo unokusekwa.Ukufunxa kunye neminye imisebenzi yokuxuba.Kwinkqubo ye-CIP yeediphozithi zegolide, i-leaching kunye ne-adsorption yimisebenzi ezimeleyo.Kumsebenzi wokufunxa, inkqubo yokucoca igqityiwe ngokusisiseko.Ubungakanani, ubuninzi, kunye neemeko zokusebenza kweetanki ze-adsorption zichongwa yimilinganiselo ye-adsorption.Inkqubo ye-CIL yeediphozithi zegolide ibandakanya ukukhutshwa kwangaxeshanye kunye nokusebenza kwe-adsorption.Kuba umsebenzi wokuvuza ngokuqhelekileyo uthatha ixesha elide kunokusebenza kwe-adsorption, ubungakanani betanki eshukumisayo imiselwa ziiparamitha zokuvuza ukumisela ubungakanani bokuphefumla kunye nedosi.Ngenxa yokuba izinga lokufunxa linxulumene nomsebenzi wokuxinana kwegolide enyityilisiweyo, amanqanaba angama-1-2 okucwiliswa kwangaphambili ahlala esenziwa ngaphambi kokuntywiliselwa komphetho ukunyusa ukuxinana kwegolide enyibilikisiweyo kwitanki ye-adsorption kunye nokunyusa ixesha lokuvuza.
3. Ukusetyenziswa okuphantsi kwenkqubo ye-electrolysis ye-desorption ngokukhawuleza.Inkqubo ye-electrolysis ephantsi yokusetyenziswa ngokukhawuleza yisethi yezixhobo zokugqoka i-ore yegolide ehlambalaza kunye ne-electrolytes igolide elayishwe i-carbon ukuvelisa udaka lwegolide phantsi kobushushu obuphezulu kunye noxinzelelo oluphezulu.Udaka lwekhabhoni olulayishwe yigolide luthunyelwa kwiscreen sokwahlulwa kwekhabhoni (esikholisa ukuba sisixhobo sokungcangcazela kwesikrini) ngempompo yekhabhoni okanye isiphakamisi somoya.Umphezulu wesikrini uhlanjwa ngamanzi acocekileyo ukwahlula ikhabhoni kwi-slurry.Ikhabhoni egcwele igolide ingena kwitanki yokugcina ikhabhoni, i-slurry kunye namanzi agungxulwayo.Ngenisa icandelo lokuqala letanki ye-adsorption.Ukusebenzisa i-electrolysis yamandla aphantsi kunye ne-fast-desorption system yokongeza i-anion ingathatha indawo ye-Au(CN) 2- nge-Au (CN) 2-, kunye nolwelo oluxabisekileyo olufunyenwe ngokuxutywa kwekhabhoni egcwele igolide lunokubuyisela igolide eyomeleleyo ngokusebenzisa indlela ye-ionization.Ukusetyenziswa kwamandla aphantsi okukhawulezayo kwenkqubo ye-electrolysis ye-desorption inezinga lokulahla elingaphezulu kwe-98% phantsi kobushushu obuphezulu (150 ° C) kunye noxinzelelo oluphezulu (0.5MPa) iimeko, kwaye ukusetyenziswa kwamandla yi-1/4 ~ 1/2 kuphela yesiqhelo. inkqubo.Ukudibanisa okungeyona inetyhefu kunye ne-side-effect iqulethe i-carbon activator, enokuvuselela i-carbon.Ikhabhoni ebhityileyo ayifuni ukuhlaziywa ngendlela yomlilo, egcina iindleko zokuvuselelwa kwekhabhoni.I-slurry yegolide ikumgangatho ophezulu, ayifuni i-electrolysis ebuyela umva, kwaye kulula ukuyikhupha.Kwangaxeshanye, inkqubo ye-electrolysis ye-low-accession ephantsi yokusetyenziswa ngokukhawuleza ithatha amanyathelo amathathu okhuseleko, angala ubukrelekrele benkqubo ngokwayo, indlela yokunciphisa uxinzelelo oluzenzekelayo kunye nendlela yokunciphisa, kunye nevalve yokhuseleko lwe-inshurensi.
Ixesha lokuposa: Feb-18-2024
