Ukutsalwa kweGolide: Amanyathelo ukusuka kwintsimbi ekrwada ukuya kwiIngot kwiCarbon Leaching

Yenziwe ICarbon yongezwa kwi-leaching tank, nto leyo evumela ukuba kwenzeke ngaxeshanye i-leaching kunye ne-adsorption, oko kukuthi i-leaching while adsorbing, 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-adsorbing ngaxeshanye ziphucula iimeko ze-dissolving kinetics zegolide, i-faCILukutshisa kunye nokufakwa kwegolide. Indlela ye-carbon-in-leach ikakhulu ibandakanya imisebenzi efana ne Ukulungiswa kokuLeaching kweMathiriyeli ekrwada, I-Leaching evuselelweyo kunye ne-countercurrent carbon adsorption, ukuchithwa kwekhabhoni egcwele igolide, I-Electrowin kunye ne-Electrolysis, ukunyibilikisa kunye nokwenza i-ingot, kunye nokuvuselelwa kwekhabhoni.

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 kwemibhobho kunye nezikrini. 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 ukukrwela kumphezulu Ikhabhoni esebenzayo kunye nesikrini. Ngokubanzi, imisebenzi emibini yokususa inkunkuma isetwa kwinkqubo yokugaya, ngokulandelelanayo xa kuphuphuma udidi lokuqala nolwesibini lokugaya. Izixhobo zokususa inkunkuma ikakhulu zisebenzisa izikrini zokungcangcazela ezijikelezayo eziphakathi. Kumsebenzi wokuqala wokususa inkunkuma, izikrini ezijikelezayo kunye nezikrini ezisilinda nazo zingasetyenziswa. Ubungakanani bomngxuma wesikrini sesikrini sokususa inkunkuma kufuneka bube mncinci kangangoko kunokwenzeka ngelixa kuqinisekiswa ukuba akukho kuphuphuma kobuninzi 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 ibonakaliswe yinkqubela phambili yegolide kunye nokusebenza kwe-adsorption. Inani lezigaba zokuvuza ngokuqhelekileyo ziyi-6 - 10 (iinkcazo kunye nobuninzi beetanki ezikhuphayo zichongwa ngokuhambelana nomthamo wokucubungula we-concentrator). Ukusukela oko Isodium cyanide isandula ukufakwa kwiTanki enguNombolo-1. ubungakanani begolide echetyiweyo buncinci. Ke, uninzi lwezityalo ze-carbon-in-leach zisebenzisa iTanki enguNombolo 1 njengetanki yangaphambi kokuvuza, kunye neetanki ezilandelayo njengetanki yokukhupha kunye ne-adsorption. Itanki nganye ye-leaching kunye ne-adsorption ixhotyiswe ngekhabhoni-isikrini esahlulahlula i-carbon kunye ne-pulp. I-pulp ihamba phambili, kwaye ikhabhoni esebenzayo ibuyela ngasemva, oko kukuthi, i-pulp kunye nekhabhoni esebenzayo ikwi-adsorption countercurrent. Ikhabhoni entsha esebenzayo yongezwa ukusuka kwitanki yokugqibela yokuvuza kunye ne-adsorption, kwaye ikhabhoni elayishiweyo yegolide iyakhutshwa kwitanki yokuqala yokukhupha kunye ne-adsorption. Ikhabhoni esebenzayo iba yigolide-ilayishwe ikhabhoni ngokufaka igolide kwipulp. Emva kokuba i-adsorption igqityiwe, i-pulp equlethe igolide-ikhabhoni elayishiwe idliswa kwi-carbon-extract screen ngokuphakamisa umoya. Isikrini sokukhupha ikhabhoni sahlula i-carbon esebenzayo kunye ne-pulp. Emva kokuhlolwa kunye nokuhlanjululwa, kuthunyelwa kwi-desorption kunye nokusebenza kwe-electrowinning. Emva kokufakwa kwe-adsorption ngale ndlela, ibakala legolide lesisombululo sepulp lidla ngokuba yi-0.01 - 0.03g/m³. Ngokubanzi, ikhabhoni edla ngokusetyenziswa ikakhulu ikhokhonathi - iqokobhe lekhabhoni esebenzayo, enemingxuma emincinci, ukusebenza okuphezulu, ukuxhathisa ukunxiba, kunye nokuvuselelwa. Inomsebenzi ogqwesileyo we-adsorption kunye ne-abrasion-amandla okumelana, inokunyusa izinga le-adsorption nge-30%, iphucule kakhulu izinga lokubuyisela igolide kwiintsimbi ezinxulumeneyo, kwaye iphucule kakhulu izibonelelo 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.