Ukuqonda iNkqubo yeGold Cyanidation ye-All-Slime kwiMigodi yeGolide

Kwindawo ye ukutsalwa kwegolide, yonke into i-cyanidation Inkqubo ime njengendlela ebalulekileyo neyamkelwe ngokubanzi yokufumana igolide kwintsimbi ekrwada. Le nkqubo isebenzayo ngokukodwa ekuphatheni izinto eziphathekayo zegolide apho igolide isasazwa kuyo yonke i-ore matrix ngamasuntswana amancinci. Esi sithuba sebhlog siza kugocagoca kwiinkcukacha ezintsonkothileyo zenkqubo yokutsalwa kwegolide ye-slime cyanidation, ikhanyise ngokubaluleka kwayo, amanyathelo okusebenza, kunye neengqwalasela eziphambili.

Ukubaluleka kwe-All-Slime Cyanidation

Inkqubo ye-cyanidation ye-slime yonke iguqule ukukhutshwa kwegolide ngokuvumela ukufunyanwa kwegolide kwintsimbi ekrwada ebithathwa njengengenaqoqosho ukusetyenzwa. Ivumela ukutsalwa kwegolide kwi-ores ye-low-grade ores, kunye nakwii-ores eziyinkimbinkimbi eziqulethe iiminerali eziphikisayo. Ngokunyibilikisa igolide kwi a i-cyanide isisombululo, le nkqubo inokufikelela kumazinga aphezulu okubuyisela igolide, okwenza kube yinto ekhethwayo kwimisebenzi emininzi yemigodi yegolide emhlabeni jikelele.

Amanyathelo okuSebenza kweNkqubo ye-All-Slime Cyanidation

Ukulungiselela intsimbi

Inyathelo lokuqala kwinkqubo ye-slime cyanidation kukulungiswa kwe-ore. Intsimbi ekrwada enegolide iyatyunyuzwa kwaye igutywe ibe ngumgubo ocolekileyo ukwandisa indawo engaphezulu ekhoyo yokunyibilika kwegolide. Oku kwenziwa ngokwesiqhelo kusetyenziswa indibaniselwano yezityumzi, izigridi, kunye nezikrini ukufezekisa ubungakanani besuntswana elifunekayo. I-ore ecolekileyo, okanye "i-slime," ihlanjwe ukuze kususwe nakuphi na ukungcola kunye nokulungiselela inkqubo ye-cyanidation.

Cyanidation

Emva kokuba i-ore ilungisiwe, ixutywa kunye nesisombululo se-cyanide kuluhlu lwamatanki aphazamisekile. Isisombululo secyanide siphendulana negolide kwintsimbi ekrwada, yenze i-soluble gold cyanide complex. Le mpendulo iququzelelwa kubukho be-oksijini, engeniswe kwiitanki nge-aeration. Ubude benkqubo ye-cyanidation bunokwahluka ngokuxhomekeke kuhlobo lwentsimbi ekrwada kunye nesantya esifunwayo sokubuyisela igolide, kodwa ngokwesiqhelo sisuka kwiiyure ezininzi ukuya kwiintsuku ezininzi.

Ukwahlula okuSolid-olwelo

Emva kokuba inkqubo ye-cyanidation igqityiwe, i-slurry ebangelwayo iphantsi kokwahlula okuqinileyo-ulwelo. Oku kwenziwa ngokwesiqhelo kusetyenziswa indibaniselwano ye-thickeners, filters, kunye ne-centrifuges ukwahlula i-tailings eqinileyo kwi-pregnancy leach solution (PLS), equlethe igolide enyibilikisiweyo. Iintsalela eziqinileyo ziye zilahlwe kwindawo yokugcina iintsalela zezimbiwa, ngelixa i-PLS ithunyelwa ukuqhutyelwa phambili ukubuyisela igolide.

UkuBuyiswa kwegolide

Inyathelo lokugqibela kwinkqubo ye-slime cyanidation kukubuyisela igolide. Kukho iindlela ezininzi ezinokuthi zisetyenziswe ukubuyisela igolide kwi-PLS, kubandakanya i-carbon adsorption esebenzayo, utshintshiselwano lwe-ion, kunye ne-electrowinning. I-actiated carbon adsorption yeyona ndlela isetyenziswa ngokuqhelekileyo, apho i-PLS idlula uluhlu lweekholomu ezizaliswe ngekhabhoni esebenzayo. Igolide ye-cyanide complex adsorb phezu kwekhabhoni, ngelixa isisombululo esiseleyo sihlaziywa kwakhona kwinkqubo ye-cyanidation. Ikhabhoni elayishiweyo ke ihluthwe igolide kusetyenziswa isisombululo esishushu se-caustic cyanide, kwaye igolide ifunyanwa ngokunyibilikiswa kombane okanye ukunyibilikiswa.

Iingqwalaselo eziphambili

Ngelixa inkqubo ye-cyanidation ye-slime yonke iyindlela esebenzayo yokukhutshwa kwegolide, ikwabeka imingeni emininzi kunye nokuqwalaselwa. Enye yezona zinto zixhalabisayo kukusetyenziswa kwecyanide, eyikhemikhali enetyhefu kakhulu. Ukuphathwa ngokufanelekileyo, ukugcinwa, kunye nokulahlwa kwe-cyanide kubalulekile ukunciphisa ingozi yendalo kunye nempilo ehambelana nokusetyenziswa kwayo. Olunye uqwalaselo lunyango lwemisila eqinileyo, enokuthi iqulathe intsalela yecyanide kunye nezinye izinto ezingcolisayo. Ulawulo lweentsalela zezimbiwa lubalulekile ekuthinteleni ukukhutshwa kwezi zingcolisi kokusingqongileyo kunye nokuqinisekisa uzinzo lwexesha elide lwendawo yokugcina iintsalela zezimbiwa.

Ukongeza, inkqubo ye-cyanidation ye-slime yonke ifuna utyalo-mali olukhulu kwizixhobo nakwiziseko ezingundoqo, kunye neendleko eziphezulu zokusebenza zamandla, iikhemikhali, kunye nabasebenzi. Ezi ndleko zinokuba nempembelelo ebalulekileyo kuqoqosho lwentsebenzo yemigodi yegolide, kwaye ingqwalasela ngenyameko kufuneka inikwe ekukhethweni kwenkqubo efanelekileyo kunye nezixhobo zokunciphisa ezi ndleko.

isiphelo

Inkqubo ye-cyanidation ye-slime yonke yindlela entsonkothileyo kodwa esebenzayo kakhulu yokutsalwa kwegolide kwintsimbi ekrwada enegolide. Ngokuqonda amanyathelo okusebenza, iingqwalasela eziphambili, kunye nemingeni ehambelana nale nkqubo, iinkampani zemigodi yegolide zinokwenza izigqibo ezinolwazi malunga nokusetyenziswa kwayo kunye nokwandisa imisebenzi yazo yokubuyisela igolide. Njengoko imfuno yegolide iqhubeleka ukukhula, inkqubo ye-cyanidation ye-slime yonke iya kuhlala iyiyona ndlela ibalulekileyo yokuhlangabezana nale mfuno, ngelixa ikwajongana neenkxalabo zokusingqongileyo nezentlalo ezinxulumene nokumbiwa kwegolide.