Ukutsalwa kweGolide: Amanyathelo ukusuka kwintsimbi ekrwada ukuya kwiIngot kwiCarbon Leaching

Ikhabhoni esebenzayo yongezwa kwi-tank leaching, eyenza ukuba kwenzeke ngaxeshanye ukuvuza kunye ne-adsorption, oko kukuthi i-leaching ngelixa i-adsorbing, ebizwa ngokuba yi-carbon-in-leach method (CIL). Ukuphuhliswa ngokusekelwe kwindlela ye-carbon-in-pulp, inika inzuzo yokunciphisa inani leetanki ezikhuphayo kunye nokunciphisa ukuhamba kwenkqubo. Ngenxa yoko, inokunciphisa utyalo-mali lolwakhiwo lwenkunzi kunye neendleko zemveliso. Leaching kunye adsorbing ngaxeshanye ukuphucula unyibiliko kinetics iimeko zegolide, 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

Iitshiphu zokhuni kunye nesundries kwipulp zinokubangela ukuvaleka kwimibhobho kunye nezikrini. Ngaphezu koko, badla ngokubhengeza igolide kwi-pulp kwaye bayixube kwikhabhoni etyebileyo. Ngoko ke, kufuneka zisuswe ngaphambi kokuba zihlanjululwe. Ukuba kuyimfuneko, ukuqina kwe-pulp kunye nokongezwa kwe-scale inhibitors kuyafuneka. I-scale inhibitor inokunciphisa ukukala kumphezulu wekhabhoni esebenzayo kunye nesikrini. Ngokuqhelekileyo, imisebenzi emibini yokususa i-debris isetyenziswe kwinkqubo yokugaya, ngokulandelanayo ekuphuphumeni kwesigaba sokuqala - kunye nesesibini - isigaba sokugaya. Isixhobo sokususa ubutyobo ubukhulu becala sisebenzisa izikrini ezingcangcazelayo eziphakathi - frequency linear. Kumsebenzi wokuqala wokukhupha inkunkuma, izikrini ezijikelezayo kunye nezikrini ze-cylindrical nazo zingasetyenziswa. Ubungakanani bomngxuma wesikrini wesikrini sokususa ubutyobo kufuneka bube buncinci kangangoko ngelixa uqinisekisa ukuba akukho phuphuma 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.