IiMfuno eziSibhozo zeTekhnoloji zeCyanidation yokutsalwa kweGolide kwi-Gold Ores

Cyanidation ukutsalwa kwegolide yindlela esetyenziswayo i-cyanide njengesisombululo sokukhupha igolide. Ngenxa yetekhnoloji evuthiweyo, izinga eliphezulu le-leaching, kunye nokuguquguquka okuqinileyo kwi-ores, i inkqubo ye-cyanidation ihlala enye yeendlela eziphambili zokuvelisa igolide kude kube namhlanje. Ngexesha lenkqubo ye-cyanidation, kubalulekile ukulawula yonke inkalo yethekhinoloji ukuqinisekisa imbuyekezo efanelekileyo yezoqoqosho. Eli nqaku liza kukwazisa kwiimfuno ezisibhozo zobuchwepheshe zokutsalwa kwegolide kwi-cyanidation kwintsimbi yegolide.

1. I-Aeration kunye neCyanide Addition

I-Cyanide yongezwa kwi-slurry emva kokugaya ukunyibilikisa igolide, ukwenza i-metal complexes. Ifomyula yokusabela imi ngolu hlobo lulandelayo: [Ifomula yokusabela kufuneka ifakwe apha ukuba ikhona]. Njengoko kunokubonwa kwi-equation, ioksijini iyafuneka ngexesha lokuphendula kwegolide. Ngoko ke, kwimveliso yezoshishino, umoya ungeniswa kwi-tank leaching. Uxinzelelo lomoya luqhelekile malunga ne-1 kg, kwaye izinga lokungenisa umoya lingaphezulu kwe-0.002 m³ ngomzuzu kwi-cubic meter yodaka.

2. Ukongezwa kweAlkali ekhuselayo

Ukugcina i-concentration ye-cyanide kwi-slurry, ukuthintela ukungcoliseka kwendalo, kwaye ugweme ukuveliswa kunye nokulahlekelwa kwegesi enetyhefu ye-hydrogen cyanide (HCN), i-alkali kufuneka yongezwe kwi-tank leaching. Oku kugcina uludaka lukwixabiso eliphezulu kakhulu le-pH (10.5 - 11). Kwimveliso yoshishino, i-lime okanye ubisi lwe-lime lusetyenziswa ngokuqhelekileyo, kwaye ngamanye amaxesha i-NaOH yongezwa ukulungiswa okongeziweyo.

3. Ukugcina i-Slurry kwiLizwe eliNxinyiweyo

Inkqubo yokutsalwa kwegolide yecyanidation ineemfuno ezithile zokusebenza kwetanki yokuphazamiseka (i-adsorption). Ngaphantsi kwemeko yokusetyenziswa kwamandla aphantsi, iinqununu zegolide eziye zakhululwa okanye ezivezwe indawo kwi-slurry akufanele zifake kwi-tank. I-slurry, i-cyanide, i-lime kunye nomoya kufuneka ixutywe kakuhle kwaye ixhonywe kwitanki. Ugxininiso lwe-slurry kufuneka lufane kuzo zonke iindawo zetanki, ngaphandle kwe-stratification ecaleni kobunzulu betanki, kunye nokusabalalisa ubungakanani bamasuntswana kufuneka bulingane.

4. Ukugcina ukuZinzisa okuLudaka okuLudaka

Xa ingxinano yegolide ekrwada i-cyanided ukusuka kwi-2.65 ukuya kwi-2.8. i-leaching jikelele ye-slurry concentration yi-40 - 45%. Xa ubuninzi be-flotation concentrate yi-3 - 3.5. i-leaching concentration jikelele yi-30 - 40%. Ubuhle bezinto eziphathekayo ngokuqhelekileyo ukuba i-80 - 95% yayo idlula kwi-200 - i-mesh sieve. Iinkqubo zokuvelisa zibonisa ukuba izinto ezahlukeneyo kunye neemeko zokuvelisa zifuna iitanki zokuphazamiseka.

5. Ukunciphisa Ukunxiba kunye neNtsholongwane yeeNdawo ezihambayo

Ukunciphisa ukunxiba kwe-agitator kunye nokwandisa ubomi bayo benkonzo, ininzi i-impellers kwimveliso yezoshishino i-rubber-lined. Isixhobo sothumelo kufuneka sicutshungulwe ngokuchanekileyo ukuze kuqinisekiswe ukuhanjiswa okuphezulu kunye nengxolo ephantsi.

6. Ukunciphisa ukunxitywa kweCarbon

Kwi ICarbon - kwinkqubo ye-pulp, ikhabhoni yongezwa kwi-adsorption tank ukuze ifunxe igolide ekhutshiweyo. Ukuba amandla okushukuma kwe-leaching agitation tank anamandla kakhulu, ikhabhoni iya kugaywa kwaye ilahleke; ukuba ibuthathaka kakhulu, kuya kwenzeka ukutyibilika. Ke ngoko, ngelixa igcina i-slurry ikwimeko yokuxhonywa, kwelinye icala, kufuneka kukhethwe ikhabhoni enobunzima obuphezulu ukuze yenziwe, kwaye kwelinye icala, isantya sokujikeleza se-impeller kufuneka sincitshiswe ukunciphisa ukulahleka kwekhabhoni kunye namandla okufaka e-agitation - adsorption tank.

7. Ukumisela umlinganiselo ofanelekileyo

Okwangoku, amandla okusebenza kwezityalo ze-cyanidation eziqhelekileyo asuka kwishumi elinesibini ukuya kumashumi amawaka eetoni ngosuku. Okukhona usiba mkhulu, kokukhona umhlaba ukhula, izixhobo ezinkudlwana, kunye notyalo-mali oluphezulu lufuneka. Imigodi kufuneka imisele isikali esifanelekileyo somzi-mveliso ngokweemeko zokwenyani.

8. Ukunciphisa Ubunzima beZixhobo kunye noTyalo-mali

Xa ukhetha itanki ephazamisayo, kufuneka isebenze kakuhle kwaye yonge amandla xa ikhupha amanzi. Kwangaxeshanye, isixhobo sokuhambisa kufuneka sithathe indawo encinci, kwaye izixhobo kufuneka zibe khaphukhaphu. Nje ukuba isikali, ukugxilwa kwe-slurry, kunye nexesha le-leaching lichongiwe, inani lamatanki linokuqinisekiswa. Nangona kunjalo, ubukhulu betanki yokuphazamiseka kufuneka bufanelekele isikali. Ngokomzekelo, ukuba i-500 - t / d isityalo se-cyanidation sisasebenzisa itanki yokuphazamiseka kwe-φ3.5 × 3.5 m, izixhobo ezininzi ziya kufuneka, ukwandisa utyalo-mali. Ngoko ke, kuphela xa izixhobo zikhaphukhaphu kwaye isikali sifanelekile sinokuncitshiswa utyalo-mali lolwakhiwo lweshishini.

Ezi ziimfuno ezisibhozo zeteknoloji kwizityalo zegolide zecyanidation. Abanini bemigodi kufuneka balawule ngokungqongqo yonke inkqubo yemveliso kwimveliso eyiyo kwaye babeke iliso kwiiparamitha ezahlukeneyo ngexesha lokwenyani ukuthintela ilahleko yezoqoqosho ebangelwa kukusebenza okungafanelekanga. Abanini-migodi banokudibana nabavelisi abaneziqinisekiso zokhetho lwezityalo xa zizonke. Kubalulekile ukwenza iimvavanyo zokuhombisa intsimbi kwangethuba kwaye wenze izicwangciso ezifanelekileyo zokukhetha izityalo ezisekelwe kwiziphumo zovavanyo.