Ukusetshenziswa Kwakho Konke - I-Slime Cyanidation Oxygen - Inqubo Ecebile Yokuvuza

Isingeniso

Embonini yezimayini kanye nokumba igolide, inqubo ye-slime cyanidation kade yaba yindlela esetshenziswa kakhulu yokukhipha igolide ematsheni. Le nqubo iqala ngokugaya yonke insimbi ibe yizinhlayiya ezincane, ngokuvamile ngengxenye ebalulekile yezinhlayiya ezincane kuno-74 micrometers ( - 200 mesh). I-ore slurry ewumphumela bese iphathwa ngayo i-cyanide. I-cyanide ions isabela negolide ku-ore, yakhe igolide elincibilikayo - i-cyanide compounds. Lezi zinhlanganisela zingase futhi zicutshungulwe ukuze kubuyiselwe igolide.

Intuthuko ebalulekile enqubweni ye-slime cyanidation ukwethulwa kwe-oxygen - leaching ecebile. Lesi sithuthukisi sibonise amandla amakhulu ekwenzeni ngcono ukusebenza kahle nokusebenza kahle kwe Ukukhishwa kwegolide.

Isimiso Se-oksijeni - I-Rich Intensified Cyanide Leaching

Inqubo yokucwiliswa kwegolide enothile nge-oksijini, eyaziwa nangokuthi inqubo ye-CIG yokufaka umoya-mpilo, ithatha indawo yomkhuba ojwayelekile wokusebenzisa umoya ocindezelwe ethangini lokuvuza nge-oxygen emsulwa. Lapho kufakwa umoya-mpilo ohlanzekile ethangini le-leaching ngaphansi kwe-agitator, iyancibilika odongeni lwensimbi. Umgomo oyinhloko ukuthi ukuncibilika kwegolide ezixazululweni ze-cyanide kwenzeka ngokusabela kwe-electrochemical. Umoya-mpilo usebenza njenge-oxidizing, esiza ukuncibilikisa igolide ngempumelelo.

Izitshalo eziningi ze-cyanide zisebenza ngaphansi kwezimo lapho isilinganiso sama-ion e-cyanide nomoya-mpilo singaphezu kuka-6. Ezimweni ezinjalo, isivinini sokuncibilika kwegolide sincike ekutheni i-oxygen ingasakazeka ngokushesha kangakanani ekuphenduleni. Ngokusebenzisa umoya-mpilo ohlanzekile, inani le-oxygen encibilikisiwe ku-slurry liyakhula, okusheshisa ukusabela okuphelele. Ucwaningo lukhombisa ukuthi ukugeleza kwegolide nge-oxygen kushesha ngokuphindwe kahlanu kunomoya.

Izinzuzo Ze-oksijeni - I-Rich Leaching kukho Konke - I-Slime Cyanidation

1. Ukukhuphuka Kwesivinini Sokuvuza kanye Nezinga Lokubuyisela

Ukugcwala komoyampilo okuphezulu ku-slurry kuholela ngqo esivinini esisheshayo sokuvuza. Ngokuncibilika ngokushesha kwegolide, isikhathi esiphelele sokucwiliswa singancishiswa kakhulu. Lokhu akukhulisi nje kuphela amandla okucubungula nsuku zonke embonini kodwa futhi kunika amandla ukukhishwa okuphumelelayo kwegolide ensimbi. Ngenxa yalokho, izinga lokubuyisela igolide lingathuthukiswa, okuholela ekuvuneni okuphezulu kwale nsimbi eyigugu.

2. Ukunciphisa Ukusetshenziswa Kwe-Cyanide

Ukusebenzisa i-oxygen ehlanzekile enqubweni yokudoba kungasika Ukusetshenziswa kwe-cyanide kusuka ku-5% kuya ku-85%. Kunezizathu eziningana zalokhu. Okokuqala, uma kusetshenziswa umoya-mpilo ohlanzekile esikhundleni somoya, inani I-Carbon i-dioxide ekungcoleni iyancipha. I-Carbon dioxide ingasabela ne-cyanide, okubangela ukuthi idliwe ezimweni ezingezinhle. Uma i-carbon dioxide incane, lezi zindlela ezingezinhle ziyancishiswa. Okwesibili, isivinini sokukhipha amanzi ngokushesha sinciphisa umthelela wezinye izindlela ezingezinhle ezisebenzisa i-cyanide. Okwesithathu, i-oxygen emsulwa ingakhipha izinto eziku-ore ebezizosebenzisa i-cyanide, okunciphisa kakhulu inani le-cyanide elidingekayo enqubweni yokukhipha amanzi.

3. Izidingo Zokusebenza Ezincane

Uma umthamo wokuvuza uhlala ungashintshile, ukucwiliswa kwe-oxygen - okucebile kunganciphisa kakhulu usayizi wethangi le-leaching. Ngenxa yokuthi izinga lokuvuza ngokushesha livumela inani elifanayo legolide ukuthi licutshungulwe ngesikhathi esifushane, ivolumu yokusabela encane yanele. Ukunciphisa usayizi wemishini yokucwilisa kungaholela ekongeni izindleko mayelana nokuthengwa kwemishini, ukufakwa, kanye nesikhala sonke esidingwa isikhungo sokucubungula.

Amacala Ohlelo Lokusebenza

Icala le-1: 

ngaphambilini bekusetshenziswa inqubo yendabuko yonke - i-slime cyanidation enokungena komoya. Ngenxa yemvelo eyinkimbinkimbi ye-ore, ukuzuza amanani aphezulu okuthola igolide kwakuyinselele. Ngemva kokwenza konke - i-slime cyanidation oxygen - inqubo ecebile yokucwiliswa kwe-leaching, ukuthuthuka okuphawulekayo kwabonakala. Isikhathi sokucheba sincishiswe ngohhafu, futhi izinga lokutholwa kwegolide likhuphuke lisuka ku-80% laya kuma-90%. Ukwengeza, ukusetshenziswa kwe-cyanide kwehle ngo-30%, okuholele ekongeni kwezindleko ezinkulu emayini.

Icala le-2: 

iyimayini yegolide yesikali esinamandla amakhulu okucubungula umthamo. Ngokwamukela inqubo yokucwilisa umoya-mpilo enothile ohlelweni lwabo lwe-slime cyanidation, bakwazile ukukhulisa umkhiqizo wabo wegolide wansuku zonke ngama-20%. Imayini iphinde yabika ukwehliswa kwezindleko zokusebenza sezizonke, ikakhulukazi ngenxa yokusetshenziswa okuphansi kwe-cyanide kanye nokusetshenziswa kahle kwemishini. Ukuqaliswa ngempumelelo e-[Igama Lemayini 2] kuyisibonelo kwezinye izimayini esifundeni ukuthi zicabangele ukuthuthukisa izinqubo zazo zokumbiwa.

Izinselelo Nezisombululo Ekusebenziseni Umoya-mpilo - I-Rich Leaching

1. Ukukhathazeka Ngokuphepha

Ukuphatha umoya-mpilo ohlanzekile kudinga imithetho eqinile yokuphepha. Umoya-mpilo uyasebenza kakhulu, futhi ukuphatha okungalungile kungaholela ezingozini zomlilo noma zokuqhuma. Ukuze kubhekwane nalokhu, izimayini kufanele zitshale imali ekugcinweni komoyampilo kanye nezinhlelo zokudiliva ezihlangabezana nezindinganiso zokuphepha. Ukuqeqeshwa okuvamile kokuphepha kwezisebenzi ezihililekile ohlelweni lwe-oxygen-leaching ocebile nakho kubalulekile ukuze kuqinisekiswe ukuthi bayayiqonda izingozi ezingase zibe khona kanye nendlela yokusebenzisa ngokuphepha okokusebenza okuhlobene nomoya-mpilo.

2. Ukuhambisana Kwezisetshenziswa

Ukuthuthukela ohlelweni lwe-oxygen - olucebile leaching kungase kudinge ukulungiswa kwemishini ekhona yokucwilisa. Izinto ezisetshenziswa ekwakhiweni kwamathangi avuzayo, ama-agitators, namapayipi kudingeka ahambisane nomoya-mpilo ukuvimbela ukugqwala nokuqinisekisa ukusebenza kwesikhathi eside. Kwezinye izimo, kungase kudingeke ukuthi esikhundleni sezingxenye ezithile kufakwe izinto ezimelana nomoya-mpilo njengensimbi engagqwali noma ama-polymers akhethekile.

3. Izindleko Zokuhlinzeka Ngeoksijini

Izindleko zokuthola nokuhlinzeka nge-oxygen emsulwa zingakhathaza ezinye izimayini. Kodwa-ke, ukonga okuvela ekusetshenzisweni okuncishisiwe kwe-cyanide kanye nokwenyuka kwamazinga okuthola igolide kuvame ukudlula izindleko zomoya-mpilo esikhathini eside. Izimayini zingahlola izinketho ezihlukahlukene zokunikezwa komoya-mpilo, njengezitshalo ezikhiqiza umoya-mpilo esizeni noma izivumelwano zesikhathi eside nabahlinzeki abathembekile, ukuze zenze inqubo yokukhipha umoya-mpilo ecebile ibe nezindleko eziningi - isebenze kahle.

Isiphetho

I- all - slime cyanidation oxygen - inqubo ecebile ye-leaching inikeza izinzuzo ezibalulekile embonini yokukhipha igolide. Ngokwandisa isivinini sokucwiliswa kwamanzi, ukuthuthukisa izinga lokuthola igolide, ukunciphisa ukusetshenziswa kwe-cyanide, kanye nethuba lokunciphisa usayizi wemishini, le nqubo inamandla okuthuthukisa inzuzo nokuzinza kwezimayini zegolide. Nakuba kunezinselele ekusetshenzisweni kwayo, ngezinyathelo ezifanele zokuphepha, ukuthuthukiswa kwemishini, namasu okuthuthukisa izindleko, izimayini eziningi kungenzeka zisebenzise lobu buchwepheshe bokuleaching obuphambili esikhathini esizayo. Njengoba isidingo segolide siqhubeka sikhula, izindlela ezisebenzayo zokulikhipha njenge-oxygen - leaching ecebile zizodlala indima ebalulekile ekuhlangabezaneni nalesi sidingo ngenkathi kunciphisa imithelela yemvelo nezomnotho.