Ukutsalwa kweGolide: Amanyathelo ukusuka kwintsimbi ekrwada ukuya kwiIngot kwiCarbon Leaching

I -Activated Carbon yongezwa kwi-leaching tank, nto leyo evumela ukuba i-leaching kunye ne-adsorption zenzeke ngaxeshanye, oko kukuthi i-leaching ngelixa i-adsorption, ebizwa ngokuba yi-carbon-in-leach method (CIL). Yaphuhliswa ngokusekelwe kwindlela ye-carbon-in-pulp, inika iingenelo zokunciphisa inani leetanki ze-leaching kunye nokunciphisa ukuhamba kwenkqubo. Ngenxa yoko, inokunciphisa utyalo-mali lokwakha kunye neendleko zemveliso. I-leaching kunye ne-adsorption ngaxeshanye ziphucula imeko ye-dissolving kinetics yegolide, i- CIL ikhuthaza i-leaching kunye ne-adsorption yegolide. Indlela ye-carbon-in-leach ibandakanya ikakhulu imisebenzi efana noLungiselelo lwe-Leaching Raw Materials , i-Stirred Leaching kunye ne-countercurrent carbon adsorption, i-desorption ye-gold-loaded carbon, i-Electrowinning kunye ne-Electrolysis , i-smelting kunye ne-ingot making, kunye nokuvuselelwa kwe-carbon.

01 Ukulungiswa kokuLeaching kweMathiriyeli ekrwada

Xa inkqubo yokutsalwa kwegolide ye-carbon-in-leach yamkelwe, ukulungiswa kwezinto eziluhlaza kubandakanya ukutyunyuzwa komzimba kunye nokuhlelwa kokusila. Ngokuqhelekileyo, kwinkqubo yokutsalwa kwegolide ye-carbon-in-leach, ukucoleka kokuphuphuma kokuhlelwa kokusila kuninzi kangangokuba i-85 - 95% idlula -200 mesh.

02 Umsebenzi Wokususwa Kobutyobo

Iitships zeenkuni kunye nezinye izinto ezikwipulp zinokubangela ukuvaleka kwimibhobho nakwizikrini. Ngaphezu koko, zihlala zifunxa igolide kwipulp zize ziyixube nekhabhoni etyebileyo. Ke ngoko, kufuneka zisuswe ngaphambi kokuba zikhutshwe. Ukuba kuyimfuneko, kufuneka ukuqina kwepulp kunye nokongezwa kwezithinteli zesikali. Isithinteli sesikali sinokunciphisa ukukala kumphezulu weCarbon eVuselelweyo kunye nesikrini. Ngokubanzi, imisebenzi emibini yokususa ubumdaka isetwa kwinkqubo yokusila, ngokulandelelana xa kuphuphuma isigaba sokuqala nesesibini sokusila. Izixhobo zokususa ubumdaka zisebenzisa kakhulu izikrini zokungcangcazela eziphakathi. Kwinkqubo yokuqala yokususa ubumdaka, izikrini ezijikelezayo kunye nezikrini ze-cylindrical nazo zingasetyenziswa. Ubungakanani bomngxuma wesikrini sesikrini sokususa ubumdaka kufuneka bube mncinci kangangoko ngelixa kuqinisekiswa ukuba akukho kuphuphuma kumphezulu wesikrini.

03 I-Pre-Leaching Working Operation

Xa ukugxininiswa okuphuphumayo kokuhlelwa kokugaya kuninzi kwi-18 - 22%, ayifanelekanga ukukhutshwa ngokuthe ngqo, kwaye ukuqina kwe-pulp kufuneka kuqhutywe. Kuyacetyiswa ukuba usebenzise i-thickener ephezulu-esebenzayo kunye neenyawo ezincinci kunye nokusebenza kakuhle kokuqina.

I-04 i-Stirred Leaching kunye ne-Countercurrent Carbon Adsorption

Indlela ye-carbon-in-leach ibonakaliswa yinkqubela phambili ngaxeshanye yemisebenzi yokutsalwa kwegolide kunye nokutsalwa. Inani lamanqanaba okutsalwa ngokubanzi liyi-6 - 10 (iinkcazo kunye nobungakanani beetanki zokutsalwa zimiselwa ngokomthamo wokucubungula we-concentrator). Ekubeni iSodium Cyanide isandula kongezwa kwiTanki No.1, ubungakanani begolide etsalwa buncinci. Ke ngoko, uninzi lwezityalo ze-carbon-in-leach zisebenzisa iTanki No.1 njengetanki yangaphambi kokutsalwa, kwaye iitanki ezilandelayo njengeetanki zokutsalwa kunye nokutsalwa. Itanki nganye yokutsalwa kunye nokutsalwa ixhotyiswe ngesikrini esahlula ikhabhoni ukuze yahlule ikhabhoni kunye ne-pulp. I-pulp iya phambili, kwaye ikhabhoni esebenzayo ibuyela umva, oko kukuthi, i-pulp kunye nekhabhoni esebenzayo zikwi-adsorption echasene nombane. Ikhabhoni esebenzayo entsha yongezwa kwitanki yokugqibela yokutsalwa kunye nokutsalwa, kwaye ikhabhoni ethwele igolide ikhutshwa kwitanki yokuqala yokutsalwa kunye nokutsalwa. Ikhabhoni esebenzayo iba yikhabhoni ethwele igolide ngokutsalwa kwegolide kwi-pulp. Emva kokuba i-adsorption igqityiwe, i-pulp equlethe i-carbon egcwele igolide ifakwa kwisikrini sokukhupha i-carbon nge-air lift. Isikrini sokukhupha i-carbon sahlula i-activated carbon kunye ne-pulp. Emva kokuhlola nokuhlambulula, ithunyelwa kwi-desorption kunye ne-electrowinning operation. Emva kwe-adsorption ngale ndlela, umgangatho wegolide wesisombululo se-pulp ngokubanzi yi-0.01 - 0.03g/m³. Ngokubanzi, i-activated carbon esetyenziswa kakhulu yi-coconut-shell activated carbon, enemingxuma emincinci, umsebenzi ophezulu, ukumelana nokuguguleka, kunye nokuhlaziywa. Isebenza kakuhle kakhulu kwi-adsorption kunye namandla okukrala, inokunyusa izinga le-adsorption nge-30%, iphucule kakhulu izinga lokubuyiselwa kwegolide kwiintsimbi ezinxulumene nayo, kwaye iphucule kakhulu iingenelo zoqoqosho kunye nokusebenza kakuhle kwemveliso.

05 Ukuchithwa kweGolide - iCarbon elayishiwe, i-Electrowinning kunye ne-Electrolysis

Igolide-elayishiweyo ikhabhoni kunye nepulp ziphakanyiselwe kwikhabhoni - isikrini esahlulayo (ngokukodwa isikrini sokungcangcazela) ngempompo ekhupha ikhabhoni okanye ngokuphakanyiswa komoya. Zihlanjululwe ngamanzi acocekileyo kwisikrini ukuze zihlukanise i-carbon kunye ne-pulp. Igolide-elayishiweyo ikhabhoni ingena kwi-carbon - itanki yokugcina, kwaye i-pulp kunye namanzi ahlanjululwayo angena kwi-tank ye-adsorption yokuqala. Kukho iindlela ezininzi zokulahla igolide - ikhabhoni elayishiwe. Okwangoku, ubushushu obuphezulu kunye noxinzelelo oluphezulu lwe-desorption indlela isetyenziswa ngokuqhelekileyo. Oko kukuthi, i-anion ekhangiswa ngokulula ngekhabhoni esebenzayo yongezwa kwinkqubo ye-desorption ukususa i-Au(CN)₂⁻ kwaye ifezekise ukuchithwa kwegolide. Ulwelo oluxabisekileyo olufunyenwe ngokudyobha igolide-elayishiweyo ikhabhoni ifunyanwa nge-ionization ukufumana igolide eyomeleleyo.