Izinto ezininzi omawuzazi malunga neGold Cyanidation

I-cyanidation yegolide yindlela yokukhupha igolide kusetyenziswa i-cyanide njenge-leaching agent. Ngenxa yenqanaba layo lobuchwephesha elivuthiweyo, izinga eliphezulu lokukhuhla, kunye nokusetyenziswa okunamandla kwi-ores, indlela ye-cyanidation iseyeyona ndlela iphambili yokukhupha igolide okwangoku. Kwinkqubo ye -cyanidation yegolide , inyathelo ngalinye kufuneka lilawulwe ukuqinisekisa iingenelo ezilungileyo kwezoqoqosho ngelixa kunciphisa ubunzima bezixhobo kunye notyalo-mali.

1. I-Aeration kunye neCyanide Addition

Emva kokugaya, i-cyanide yongezwa kwi-pulp ukuze ichithe igolide kwaye yenze i-metal complexes. Indlela yokusabela yile ilandelayo: 4Au + 8NaCN + O2 + 2H2O → 4NaAu(CN)2 + 4NaOH. Njengoko kunokubonwa kule fomyula ingentla, ioksijini iyadingeka kwinkqubo yokukhutshwa kwegolide. Ngoko ke, kwimveliso yemizi-mveliso, itanki yokukhupha kufuneka ifakwe umoya. Uxinzelelo lomoya luba malunga ne-1 kg, kwaye umthamo wokungenisa umoya ngomzuzu kwi-cubic meter nganye yodaka mkhulu kune-0.002 m³.

2. Ukongeza iAlkali ekhuselayo

Ukuqinisekisa ukuxinwa kwe-cyanide kwi-pulp, ukuphepha ukungcoliseka kwendalo, kunye nokuthintela ukuveliswa kwegesi enetyhefu ye-hydrogen cyanide (HCN), i-alkali kufuneka ifakwe kwi-tank leaching ukugcina ixabiso eliphezulu le-pH ye-pulp. Ubisi lwekalika okanye ubisi lwekalika luhlala lusetyenziswa kwimveliso yeshishini, kwaye ngamanye amaxesha i-NaOH yongezwa uhlengahlengiso olongezelelweyo.

3. Ukugcina ukuSuspension oluludaka

Inkqubo yegolide ye-cyanidation ineemfuno ezithile zokusebenza kwetanki yokuphazamiseka. Ngokusetyenziswa kwamandla aphantsi, amasuntswana e-monomer-yahlulwe okanye eveziweyo yegolide engaphezulu kwi-pulp akufanele ifakwe kwitanki. I-pulp, i-cyanide, ikalika, kunye nomoya kufuneka zixutywe ngokupheleleyo kwitanki ukuze zifikelele kwisimo sokunqunyanyiswa. Uxinzelelo lwe-slurry kwindawo nganye yetanki kufuneka luhambelane, kwaye kufuneka kungabikho stratification ecaleni kobunzulu betanki, kunye nokusabalalisa ubungakanani bamasuntswana kufuneka bufane.

4. Ukugcina uzinzo oluludaka olufanelekileyo

Xa ubuninzi bentsimbi yegolide yi-2.65 - 2.8. I-pulp leaching jikelele yoxinaniso yi-40 - 45%. Xa ukuxinana kwe-flotation concentrate yi-3 - 3.5. i-leaching concentration jikelele yi-30 - 40%. Ngokuqhelekileyo, izinto ezinobunzima obungaphantsi kwe-200 i-akhawunti ye-mesh ye-80 - 95%.

5. Ukunciphisa Ukunxiba kunye neNtsholongwane yeeNdawo ezihambayo

Ukunciphisa ukunxiba kwe-agitator kunye nokwandisa ubomi bayo benkonzo, ininzi i-impellers kwimveliso yezoshishino i-rubber-lined. Ukukhethwa kwesixhobo sothumelo kufuneka kucokiseke ukuze kuqinisekiswe ukusebenza kakuhle kosulelo kunye nengxolo ephantsi.

6. Ukunciphisa ukunxitywa kweCarbon

Indlela yeCarbon -in-pulp yongeza ikhabhoni kwitanki yokufunxa ukuze ifunxe igolide. Ukuba amandla okufunxa etanki yokufunxa anamandla kakhulu, ikhabhoni iya kugaywa ize ilahleke. Ukuba amandla okufunxa abuthathaka, kuya kuveliswa inkunkuma. Ke ngoko, ngelixa i -pulp ikwimeko yokuxhoma, kwelinye icala, kuyimfuneko ukukhetha ikhabhoni enobunzima obuphezulu bokuvelisa, kwaye kwelinye icala, kuyimfuneko ukunciphisa isantya sokujikeleza kwe-impeller ukunciphisa ukulahleka kwe-pulp, ikhabhoni, kunye namandla okufaka etanki yokufunxa i-agitation.

7. Ukumisela isakhono esifanelekileyo

Okwangoku, amandla okusebenza kwezityalo eziqhelekileyo ze-cyanidation zegolide zisusela kumashumi amaninzi eetoni ukuya kumashumi amawaka eetoni ngosuku. Ukuba mkhulu umthamo wemveliso, ubukhulu bendawo yeplanti, kwaye ubukhulu bezinto zokusebenza kunye notyalo-mali. Umnini mgodi ngamnye kufuneka amisele umthamo womatshini wokusetyenzwa ofanelekileyo ngokweyona meko.

8. Ukunciphisa Ubunzima beZixhobo kunye noTyalo-mali

Xa ukhetha itanki ye-leaching, kwelinye icala, inkqubo yokukhupha iyadingeka ukuba isebenze kakuhle kwaye igcine amandla, kwaye ngexesha elifanayo, isixhobo sokuhambisa kufuneka sibe neenyawo ezincinci kunye nobunzima obulula. Xa umthamo, ugxininiso lwe-pulp, kunye nexesha le-leaching lichongiwe, inani leetanki ezikhuphayo linokumiselwa. Nangona kunjalo, iinkcukacha zeetanki zokuvuza kufuneka zilungele umthamo wesityalo. Xa kwakhiwa i-500t / d iplanti ye-cyanidation yegolide, ukuba itanki ye-leaching ye-φ3.5X3.5m isetyenzisiwe, izixhobo ezifunekayo kufuneka zandiswe, ukwandisa utyalo-mali. Ngoko ke, kuphela ngezixhobo ezilula kunye nomthamo ofanelekileyo utyalo-mali lokwakha lweshishini luya kuncitshiswa.