"I-Heap Leaching Gold Remond eYangu mine e Yuanshan, Nevada"

**% & #!% & #! *** # # # # # # # # # # # # # selokhu kwasungulwa. Ingqalasizinda yezokumbiza, edinga ukutshalwa kwemali kwamadola ayizigidi eziyi-18, yaqedwa futhi yaqala ukusebenza ngo-1977. Ngonyaka wayo wokuqala, futhi ngo-1979, ukukhiqizwa kwabhekelwa ukwanda kuya ku-1.71 amathani egolide no-0.98 Amathani esiliva, asekelwa abasebenzi abasebenzi abangu-140. # # 1 I-ore icebile ngezinsimbi eziyigugu, ifinyelela kumagremu wegolide angu-1.93 wegolide nama-2.18 amagremu wesiliva ngethani ngalinye. Sisebenzisa amasu we-leashing ye-Cyanide inqwaba, umsebenzi ufinyelela izinga lokutakula legolide lama-86%, okwenza kube yindlela ephumelelayo yokukhipha amaminerali abalulekile. #### Amasu wokumama kanye nokucubungula indlela yezimayini esetshenzisiwe iyimayini evulekile evulekile, lapho kuqale khona u-ore kuqhekeka ngosayizi wamamilimitha ayi-178 usebenzisa i-Crusher yesikhonkwane esiyinhloko. Izinto ezichotshoziwe zihanjiswa ngebhande lebhande ku-crusher yesibili, kunciphisa futhi usayizi kuya ku-1050 millimeter. I-pair of creaser yekhanda elifushane bese ihlaziya ama-ore ku-ore kuya ku-9.5 millimiter, isikulungiselele i-inquap leaching. Isikhungo se-Heap Leaching yakhelwe njengendawo exandekile yokulinganisa amamitha angama-640 ubude namamitha angama-86 ububanzi. Isisekelo sendawo ye-Leaching enenqwaba siqukethe i-reashion eyi-178-millimeter, ifakwe ungqimba olungamelana namanzi angama-50-millimeter elenziwe ngamashidi enjoloba kanye ne-asphalt. Umgwaqo wokuhamba, owakhiwe kusuka ku-ore ochotshoziwe, uphakanyiswa amamitha ayi-660 ngaphezulu komphezulu we-asphalt. Indawo yokufundisa ihlukaniswe yaba yimikhakha emihlanu ehlukene, ngalinye lithambekele ekwenzeni lula ukuqoqwa kwe-laachate echibini elibekiwe. Inkambu ngayinye ingahlalisa amathani acishe abe ngu-45,000 amathani e-ore, amasimu amane anikezelwe ekuvuthweni kanye nokugeza nokulayisha. # 1 Kusatshalaliswa kwinqwaba ngayinye yokuvutha ngenethiwekhi yamapayipi amane epulasitiki axhunyiwe kulayini oyinhloko wokuhlinzekwa. Ipayipi ngalinye libonisa i-baghdad eswayipha njalo ngamamitha ayi-12, aqinisekise ngisho nokusatshalaliswa kwe-leachate. Inqwaba ngayinye ye-leaching ifakwe ama-nozzles acishe abe ngu-84, okuvumela ukugeleza okungamanzi okungama-2,4 ama-milliliters angama-3,4 ngemitha yesibili ngomzuzwana, enomqondo wamamitha-skwele angama-116, enomthamo wehora lehora eliphelele. Inqubo yokugqugquzela ipheza isikhathi esiyizinsuku ezingama-27, lapho kuthathwa khona amasampula ansuku zonke. Uma izinga lokuvutha ngegolide liwela ngaphansi komkhawulo onqunyelwe ngaphambili, i-laachate inqanyuliwe futhi izinqwaba zigezwa ngamanzi izinsuku ezimbili. #### Ukulawulwa Kwemfucuza I-Waste Rock ekhiqizwe ngesikhathi senqubo yokugquma ihanjiswa kwisiza esibekiwe kusetshenziswa abalayishi ababili be-ore namaloli amahlanu angama-45. Njengoba kunikezwe ukusondela kwendawo ye-Waste Rock endaweni yokuvuka, izinto zokuhamba zisebenza kahle, ngokuvamile zithatha amahora angama-28. Ukuvikela indawo ye-asphalt yendawo yokufaka i-Leaching, ungqimba we-Waste Rock, ama-millimitha angama-200-250 aminyene, abekwa esisekelweni senqwaba. Ukuqapha ukungcoliswa okungaba khona, kuqhutshwa kahle kakhulu esigabeni esingezansi senkambu yokuphakanyiswa kokuhlolwa ngezikhathi ezithile kwe-leachate. # Lapha, ikhambi lidlula ngochungechunge lwamathangi amahlanu acushiwe ama-carbon adsorption amathangi ngesilinganiso sokugeleza kwama-6056 amalitha ngomzuzu, uthele cishe amakhilogremu angama-7.775 wegolide ngethani elisetshenzisiwe le-ore. Le nqubo ifaka ukusebenza okubuyiselwe emuva kwezinhlayiya ze-leachate ne-carbon, ngethani elilodwa lekhabhoni eligcwele igolide elisuswe kusuka ethangini lokuqala nsuku zonke futhi lithathelwe indawo yikhabhoni entsha ethangini lesihlanu. I-leachate esetshenzisiwe iphathwa nge-sodium cyanide kanye ne-lime ngaphambi kokuvuselelwa kabusha kwinqubo yokuvutha. I-carbon ecebile yegolide ihlala ethangini lentuthuko ekushiseni kwama-degree angama-88 usebenzisa i-hot sodium hydroxide ne-sodium cyanide. Ikhabhoni ehlehlisiwe bese ibuyiselwa emuva ukuze iphinde isebenze e-Irotech Kiln. Umkhiqizo wokugcina, i-Gold and Silver-Rich alte, iqoqwa kumaseli amathathu we-electrolytic, lapho igolide litholakala eChoode yensimbi yohlobo lwensimbi. ## Isiphetho Imayini yegolide yase-Tobacco Valley Eyisibonelo Esihlelekile esihlanganisa amasu wesimanjemaini anamuhla ngokuphathwa kokungcola okusebenzayo nezinqubo zokutakula. Ngezinqolobane zalo ezibalulekile ze-ore nezindlela ezithuthukile zokucubungula, imayini iyaqhubeka nokudlala indima ebalulekile esifundeni sokukhiqiza igolide sokukhiqiza.