Kugwiritsa Ntchito All-Slime Cyanidation Carbon-in-Pulp Gold Extraction process ku China

Introduction

Mu gawo la migodi ndi kuchotsera golide, kusungunuka kwa matope onse CarbonNjira ya -in-pulp (CIP) yakhala njira yofunika kwambiri. Njirayi ndi yothandiza kwambiri pochiza miyala yagolide yokhala ndi dongo lochuluka komanso tinthu tating'onoting'ono tating'onoting'ono. Ku China, chifukwa cha golide wake wochuluka komanso kufunikira kwa golide komwe kukukulirakulira, njira ya CIP yokhala ndi slime cyanidation yagwiritsidwa ntchito kwambiri, ndipo yakhala ikugwira ntchito yofunika kwambiri m'makampani opanga golide m'dziko muno.

Mfundo za All-Slime Cyanidation Carbon-in-Pulp Process

Njira yonse ya cyanidation CIP ndi kuphatikiza njira ziwiri zofunika: Cyanidation leaching ndi carbon-in-pulp adsorption.

Cyanidation Leaching

Cyanidation leaching ndiye maziko a ndondomekoyi. Miyala ya golide ikaphwanyidwa, kuphwanyidwa, ndi kupukutidwa, imasakanizidwa ndi a cyanide yankho. Pamikhalidwe yoyenera ya pH, kutentha, ndi mpweya wokwanira, golide mu ore amakumana ndi ma cyanide ma ion kuti apange zosungunuka zagolide za cyanide. Chemical reaction imatha kufotokozedwa motere:

Izi zimathandiza kuti golide asungunuke kuchokera ku matrix ore kupita ku yankho, kuwalekanitsa ndi mchere wa gangue.

Carbon-in-Pulp Adsorption

Golide akasungunuka mu yankho la cyanide, granular Carbon Woyendetsa imawonjezedwa mwachindunji ku pulp yotulutsa. Mpweya woyatsidwa uli ndi mphamvu yokwanira yoyatsira golide wa cyanide. Kudzera mu njira zoyatsira thupi ndi mankhwala, golide umayatsidwa pamwamba pa mpweya woyatsidwa, zomwe zimalekanitsa bwino golide ndi yankho la cyanide. Gawoli limachotsa kufunikira kwa njira zovuta zolekanitsira madzi olimba m'njira zachikhalidwe zoyatsira, zomwe zimapangitsa kuti njira yonse yochotsera ikhale yosavuta.

Mbiri Yachitukuko cha All-Slime Cyanidation CIP Process ku China

Ulendo waku China wokhala ndi njira zonse za cyanidation CIP unayamba zaka makumi angapo zapitazo.

Magawo Oyambirira

Chapakati pa zaka za m'ma 20, migodi ya golidi ku China idadalira kwambiri miyambo yakale Kuchotsa golide njira, zomwe zinali ndi malire pakugwiritsa ntchito miyala yovuta. Pamene kufunidwa kwa golide kunachulukirachulukira komanso kupezedwa kwa miyala ya golide yovuta kwambiri, panafunika kufunikira koyambitsa umisiri wapamwamba kwambiri wokumba. Njira yonse ya cyanidation CIP idayambitsidwa pang'onopang'ono ndikuphunziridwa. M’zaka za m’ma 1970 ndi m’ma 1980, kufufuza koyambirira ndi kuyezetsa koyendetsa ndege kunachitika m’migodi ina ya golide. Mwachitsanzo, m’migodi ina ya m’chigawo cha Heilongjiang anayesa kugwiritsa ntchito njira imeneyi posamalira miyala ya golide ya m’deralo, yomwe inayala maziko a ntchito yake yaikulu ya m’tsogolo.

Kukula ndi Kukhwima

M'zaka makumi angapo zotsatira, ndi luso laukadaulo lopitilirabe komanso kuwongolera, njira ya CIP ya cyanidation yonse idayamba kulimbikitsidwa ndikugwiritsidwa ntchito m'dziko lonselo. M'zaka za m'ma 1990 ndi 2000, migodi yambiri ya golide ku Henan, Shandong, Jilin, ndi zigawo zina zinamanga mizere yopangira cyanidation CIP. Migodi imeneyi ikupitirizabe kukhathamiritsa magawo a ndondomekoyi, kupititsa patsogolo kayendetsedwe ka zipangizo, ndi kuphunzitsa magulu aukadaulo. Chotsatira chake, mlingo wobwezeretsa golide pang'onopang'ono unakula, ndipo ndalama zopangira zinayendetsedwa bwino. Pofika kumapeto kwa zaka za m'ma 20, njira yopangira golide wa CIP idakhala imodzi mwa njira zopezera golide ku China, zomwe zidapangitsa kuti golide achuluke kwambiri mdzikolo.

Kugwiritsa Ntchito Njira Ya All-Slime Cyanidation CIP M'migodi Yosiyanasiyana ya Golide ku China

Shandong Province

Shandong ndi chigawo chachikulu chomwe chimapanga golide ku China. Migodi ikuluikulu yambiri ya golide pano yatengera njira ya CIP ya cyanidation. Mwachitsanzo, Mgodi wa Golide wa Jiaojia. Miyala ya mu Mgodi wa Golide wa Jiaojia ili ndi mikhalidwe ina ya kukula kwa tinthu ting'onoting'ono komanso dongo lalikulu. Pambuyo potengera njira yonse ya cyanidation CIP, chiwongola dzanja cha golide chakwera kwambiri. Kupyolera mu ulamuliro okhwima akupera fineness kuonetsetsa kuti particles golide bwinobwino poyera, kusintha cyanide ndende ndi leaching nthawi malinga ndi ore katundu, ndi optimizing ndondomeko mpweya adsorption, golide kuchira mlingo wa Jiaojia Gold Mine wafika pa 90%. Izi sizinangowonjezera phindu pazachuma za mgodi komanso zakwezanso kagwiritsidwe ntchito ka chuma.

Chigawo cha Henan

Ku Henan, dera la Lingbao lili ndi golide wambiri. Mgodi wa Golide wa Yangzhaiyu ku Lingbao ndi chitsanzo chogwiritsa ntchito njira zonse za cyanidation CIP. Mgodiwu uli ndi chingwe chachikulu chopangira cyanidation CIP. Panthawi yopanga, kuwonjezera pakutsata njira zokhazikika, idawonjezeranso njira zina zochizira zisanachitike. Mwachitsanzo, kupyolera mu chithandizo cha pre-oxidation cha ores ena otsutsa, vuto la cyanidation leaching linachepetsedwa, ndipo mphamvu yonse ya njira yonse ya cyanidation CIP inakonzedwa bwino. Kupambana kwa Mgodi wa Golide wa Yangzhaiyu kwathandiziranso kukweza kwaukadaulo kwa migodi ina ya golide mderali.

Chigawo cha Jilin

Mgodi wa Golide wa Hushan m'chigawo cha Jilin umagwiritsanso ntchito mokwanira njira zonse za CIP za cyanidation. Potengera nyengo yozizira ya komweko komanso mawonekedwe ake enieni, mgodi wasintha zina ndi zina kuti zigwirizane ndi ntchitoyi. Mwachitsanzo, m'nyengo yozizira, njira zapadera zimatengedwa kuti zitsimikizire kuti ntchitoyi ikugwira ntchito m'malo otentha kwambiri, monga kutentha kwa slurry ndi kukhathamiritsa mpweya wabwino mu thanki ya leaching. Pochita izi, mgodi wasungabe kupanga kosasunthika komanso kubweza golide wokwera kwambiri, zomwe zikuwonetsa kusinthasintha ndi kusinthika kwa njira ya CIP yamtundu uliwonse wa cyanidation m'malo osiyanasiyana komanso nyengo.

Ubwino wa All-Slime Cyanidation CIP Process ku China

High Gold Recovery Rate

Dongosolo lonse la cyanidation CIP limatha kupeza chiwongola dzanja chambiri, nthawi zambiri chimafikira 85% m'migodi yambiri ya golide ku China. Izi zili choncho makamaka chifukwa kuwonjezera kwachindunji kwa carbon activated mu zamkati kumatha kugwira bwino golide cyanide complexes, kuchepetsa kutayika kwa golide mu leaching solution. Mwachitsanzo, m'migodi ya golidi yomwe tatchulayi, kupyolera mu kukhathamiritsa kosalekeza kwa ndondomekoyi, chiwongoladzanja chobwezeretsa chakhala chiwongolero, chomwe chiri chokwera kwambiri kuposa njira zina zochotsera golide.

Njira Yosavuta Yoyenda

Poyerekeza ndi njira zovuta zochotsera golide, njira yonse ya cyanidation CIP imakhala ndi kuyenda kosavuta. Imasiya masitepe ovuta olekanitsa amadzimadzi olimba, monga kusefera ndi kutsuka m'njira zachikhalidwe za cyanidation. Kuphweka kumeneku sikungochepetsa ndalama zogulira zida ndi zomangamanga komanso kumathandizira magwiridwe antchito ndi kasamalidwe ka mzere wopanga, kukhala kosavuta kuwongolera njira yopangira ndikuchepetsa kuthekera kwa kulephera kwa njira.

Kusinthika kwa Ores Osiyanasiyana

Njirayi ikuwonetsa kusinthika kwamitundu yosiyanasiyana ya miyala yagolide, makamaka yomwe ili ndi dongo lalikulu komanso kukula kwa tinthu tating'ono. Kaya ndi oxidized golide ore, sulfide golide ore, kapena zovuta zamitundu yambiri zomwe zimagwirizanitsidwa ndi golide, njira yonse ya slime cyanidation CIP imatha kusinthidwa ndikukongoletsedwa molingana ndi zida za ore kuti mupeze zotsatira zabwino zochotsa. Kusinthasintha kumeneku kwathandiza China kugwiritsa ntchito bwino chuma chambiri chagolide.

Mavuto ndi Mayankho pa Kugwiritsa Ntchito Njira Yonse ya Slime Cyanidation CIP ku China

Zovuta Zachilengedwe

Chimodzi mwazovuta zazikulu za njira yonse ya cyanidation CIP ndi kugwiritsa ntchito cyanide, yomwe ili poizoni kwambiri. Ngakhale kuti dziko la China lili ndi malamulo okhwima komanso njira zoyendetsera kagwiritsidwe ntchito ndi kutaya cyanide, pali ngozi zomwe zingawononge chilengedwe. Poyankha, migodi ya golidi yaku China yakhala ikulimbikitsa njira zotetezera chilengedwe. Mwachitsanzo, apanga njira zapamwamba zoyeretsera madzi onyansa a cyanide kuti awonetsetse kuti cyanide yomwe ili m'madzi otayidwa ikugwirizana ndi miyezo ya dziko. Migodi ina ikufufuzanso mwachangu ndikugwiritsa ntchito njira zina zochepetsera kapena kuchepetsa kugwiritsa ntchito cyanide, monga kupanga ndi kuyesa kugwiritsa ntchito thiosulfate ndi njira zina za bio-leaching.

Ore Refractoriness

Miyendo ina ya golidi ku China imakhala yosasunthika, zomwe zikutanthauza kuti golide yemwe ali mu miyalayi ndizovuta kuchotsedwa ndi cyanide. Izi zitha kuchepetsa kubweza golide ndikuwonjezera ndalama zopangira. Pofuna kuthana ndi vutoli, migodi ya golide nthawi zambiri imagwiritsa ntchito njira zochizira anthu asanatengerepo mankhwala. Njira zochiritsira zochizira thupi zisanachitike zimaphatikizansopo kugaya bwino, kuwotcha, ndi okosijeni wothamanga kwambiri. Njira zopangira mankhwala zisanachitike monga bio-oxidation zimalimbikitsidwanso pang'onopang'ono. Njira zochiritsirazi zitha kuphwanya kapangidwe ka mchere wotsutsa, kuwulula tinthu tagolide, ndikuwongolera magwiridwe antchito a cyanidation leaching.

Chiyembekezo chamtsogolo cha All-Slime Cyanidation CIP Process ku China

Kupanga Kwamaukadaulo

M'tsogolomu, kupititsa patsogolo kwaukadaulo kudzakhala chinsinsi cha chitukuko cha njira zonse za cyanidation CIP ku China. Kafukufuku ndi ntchito zachitukuko zidzayang'ana kwambiri kupititsa patsogolo kuchuluka kwa golide, kuchepetsa ndalama zopangira, komanso kupititsa patsogolo chilengedwe. Mwachitsanzo, kupanga bwino kwambiri activated carbon ndi apamwamba adsorption mphamvu ndi kusankha golide adzakhala njira yofunika. Komanso, kugwiritsa ntchito machitidwe anzeru kulamulira m`kati kukwaniritsa zolondola ndondomeko chizindikiro kusintha ndi zenizeni nthawi polojekiti kupanga nawonso mwachangu kufufuza.

Kukula kwa Kuchuluka kwa Ntchito

Ndi kupezeka kosalekeza kwa ma depositi atsopano a golide komanso kuchuluka kwa kufunikira kwa golide, njira ya CIP ya cyanidation yonse ikuyembekezeka kugwiritsidwa ntchito m'migodi yambiri ya golide ku China. Panthawi imodzimodziyo, ikhoza kukulitsidwanso pakusamalira golide wa golide wochepa kwambiri ndi zinyalala za mafakitale zomwe zili ndi golidi, kukulitsa kukula kwa kagwiritsidwe ntchito kazinthu ndikuthandizira chitukuko chokhazikika cha migodi ya golide.

Kutsiliza

Njira ya all-slime cyanidation carbon-in-pulp yatenga gawo lofunikira pamakampani amigodi a golide ku China. Kupyolera mukukula kosalekeza ndi kusintha kwa zaka zambiri, zawonetsa ubwino waukulu pakuchotsa golide. Ngakhale akukumana ndi zovuta zina, ndi kuyesetsa kwamakampani pakupanga luso laukadaulo komanso kuteteza chilengedwe, njira ya CIP ya cyanidation yonse ikuyembekezeka kupitiliza kupanga ndikuthandizira kwambiri kupanga golide waku China komanso kugwiritsa ntchito zinthu mtsogolo.