Kugwiritsa Ntchito Zonse - Slime Cyanidation Oxygen - Rich Leaching Process

Introduction

M'makampani opangira migodi ndi kukumba golidi, njira yopangira golide wa slime cyanidation yakhala ikugwiritsidwa ntchito kwambiri pochotsa golide ku ores. Izi zimayamba ndikupera miyala yonseyo kukhala tinthu tating'onoting'ono, nthawi zambiri ndi tinthu ting'onoting'ono tochepera 74 micrometer (- 200 mesh). The chifukwa ore slurry ndiye mankhwala ndi cyanide. Ma cyanide ions amachita ndi golide mu ore, kupanga golide wosungunuka - cyanide mankhwala. Mankhwalawa amatha kukonzedwanso kuti apeze golide.

Kusintha kofunikira panjira zonse za slime cyanidation ndikuyambitsa mpweya wochuluka wa okosijeni. Kuwongolera uku kwawonetsa kuthekera kwakukulu pakuwongolera bwino komanso kuchita bwino kwa Kuchotsa golide.

Mfundo ya Oxygen - Rich Intensified Cyanide Leaching

Njira ya okosijeni - yowonjezereka kwambiri ya golide, yomwe imadziwikanso kuti CIG oxygenation process, imalowa m'malo mwachizolowezi chogwiritsa ntchito mpweya woponderezedwa mu thanki yotulutsa mpweya wokhala ndi mpweya wabwino. Oxygen yoyera ikalowetsedwa mu thanki yotulutsa mpweya kuchokera pansi pa chowombera, imasungunuka mu slurry wa ore. Mfundo yayikulu ndikuti kusungunuka kwa golide mu cyanide solution kumachitika kudzera mu electrochemical reaction. Oxygen imagwira ntchito ngati oxidizing, yomwe imathandiza kusungunula golide bwino.

Zomera zambiri za cyanide zimagwira ntchito pomwe chiŵerengero cha ma cyanide ions ndi okosijeni chimakhala chachikulu kuposa 6. Zikatero, kuthamanga kwa kusungunuka kwa golide kumadalira momwe mpweya umafalira mofulumira. Pogwiritsa ntchito mpweya wabwino, kuchuluka kwa mpweya wosungunuka mu slurry kumawonjezeka, zomwe zimafulumizitsa zomwe zimachitika. Kafukufuku akuwonetsa kuti kutulutsa golide ndi okosijeni kumathamanga kuwirikiza kasanu kuposa mpweya.

Ubwino wa Oxygen - Rich Leaching in All - Slime Cyanidation

1. Kuchuluka kwa Leaching Liwiro ndi Kubwezeretsa Rate

Kuchuluka kwa okosijeni mu slurry mwachindunji kumabweretsa kuthamanga kwachangu. Ndi kusungunuka kwachangu kwa golide, nthawi yonse ya leaching imatha kuchepetsedwa kwambiri. Izi sizimangowonjezera mphamvu yopangira mafuta tsiku lililonse komanso zimapangitsa kuti golide atuluke m'miyala mwaluso. Chotsatira chake, golide wobwezeretsa golide ukhoza kukhala wabwino, zomwe zimapangitsa kuti pakhale zokolola zambiri zachitsulo chamtengo wapatali ichi.

2. Kuchepetsa Kugwiritsa Ntchito Cyanide

Kugwiritsa ntchito mpweya wabwino mu leaching ndondomeko akhoza kudula Kugwiritsa ntchito cyanide Pali zifukwa zingapo zomwe zimapangitsa izi. Choyamba, pamene mpweya wabwino ukugwiritsidwa ntchito m'malo mwa mpweya, kuchuluka kwa mpweya Carbon Mpweya woipa womwe uli mu matope umachepa. Mpweya woipa womwe umakhala mu matope umatha kuyanjana ndi cyanide, zomwe zimapangitsa kuti igwiritsidwe ntchito m'njira zina. Mpweya woipa womwe umakhala mu carbon dioxide wochepa umachepa. Chachiwiri, kuthamanga kwa madzi otuluka mofulumira kwambiri kumachepetsa mphamvu ya madzi ena omwe amadya cyanide. Chachitatu, mpweya wabwino ukhoza kupangitsa kuti zinthu zomwe zili mu chitsulocho zilowe mu chitsulocho zikanatha kugwiritsa ntchito cyanide, zomwe zimapangitsa kuti cyanide ichepetse kwambiri.

3. Zofunika Zing'onozing'ono Zida

Ngati mphamvu ya leaching ikhala yosasinthika, leaching yochuluka ya okosijeni imatha kuchepetsa kukula kwa thanki yotayira. Chifukwa kuthamanga kwachangu kumalola golide wofanana kukonzedwa munthawi yochepa, voliyumu yaying'ono ndiyokwanira. Kuchepetsa kukula kwa zida za leaching kungayambitse kupulumutsa ndalama pogula zida, kuyika, komanso malo onse ofunikira pokonza.

Milandu Yothandizira

Mlandu wa 1: 

m'mbuyomu adagwiritsa ntchito njira yachikhalidwe yonse - slime cyanidation process yokhala ndi mpweya. Chifukwa cha zovuta za ore, kupeza golide wokwera mtengo kunali kovuta. Pambuyo pokhazikitsa zonse - slime cyanidation oxygen - ndondomeko yochuluka ya leaching, kusintha kodabwitsa kunawoneka. Nthawi yotsitsa idachepetsedwa ndi theka, ndipo chiwopsezo cha kubweza golide chinakwera kuchoka pa 80% mpaka 90%. Kuphatikiza apo, kugwiritsa ntchito cyanide kudatsika ndi 30%, zomwe zidapangitsa kuti mtengo wa mgodiwo ukhale wotsika kwambiri.

Mlandu wa 2: 

ndi mgodi wawukulu wa golide womwe uli ndi kuthekera kochulukirachulukira. Potengera njira ya okosijeni - yochuluka yotulutsa mpweya m'dongosolo lawo lonse la slime cyanidation, adatha kuwonjezera kupanga golide wawo watsiku ndi tsiku ndi 20%. Mugodiwo unanenanso za kutsika kwa ndalama zogwirira ntchito, makamaka chifukwa chotsika mtengo wa cyanide komanso kugwiritsa ntchito bwino zida. Kuchita bwino pa [Mine Name 2] ndi chitsanzo kwa migodi ina m'derali kuti iganizire zokweza njira zawo zokumba.

Zovuta ndi Zothetsera Pokhazikitsa Oxygen - Rich Leaching

1. Zokhudza Chitetezo

Kugwira mpweya wabwino kumafuna ndondomeko zotetezeka. Oxygen imakhala yotakasuka kwambiri, ndipo kusagwira bwino kungayambitse ngozi yamoto kapena kuphulika. Kuti athane ndi izi, migodi iyenera kuyika ndalama zosungirako mpweya wa okosijeni ndi njira zoperekera zomwe zimakwaniritsa miyezo yachitetezo. Maphunziro okhazikika achitetezo kwa ogwira ntchito omwe ali ndi mpweya wochuluka wa okosijeni ndiwofunikiranso kuti awonetsetse kuti amvetsetsa zoopsa zomwe zingachitike komanso momwe angagwiritsire ntchito zida zogwirizana ndi mpweya.

2. Kugwirizana kwa Zida

Kukwezera ku makina otulutsa mpweya wochuluka kungafunike kusinthidwa kwa zida zomwe zilipo kale. Zipangizo zomwe zimagwiritsidwa ntchito pomanga matanki a leaching, zoyendetsa, ndi mapaipi ziyenera kugwirizana ndi mpweya kuti zisawonongeke ndikuonetsetsa kuti zikugwira ntchito kwa nthawi yayitali. Nthawi zina, pangafunike kusintha zinthu zina ndi zinthu zosagwira mpweya monga chitsulo chosapanga dzimbiri kapena ma polima apadera.

3. Mtengo Wopereka Oxygen

Mtengo wopezera ndi kupereka mpweya wabwino ukhoza kukhala wodetsa nkhawa migodi ina. Komabe, ndalama zomwe zimasungidwa chifukwa cha kuchepa kwa cyanide komanso kuchuluka kwa kubweza golide nthawi zambiri zimaposa mtengo wa okosijeni pakapita nthawi. Migodi imatha kufufuza njira zosiyanasiyana zopezera okosijeni, monga - zomera zopangira mpweya wa okosijeni kapena mapangano a nthawi yayitali ndi ogulitsa odalirika, kuti ntchito yotulutsa mpweya - yolemera kwambiri ikhale yotsika mtengo.

Kutsiliza

Njira zonse - slime cyanidation oxygen - njira yochuluka ya leaching imapereka phindu lalikulu pamakampani ochotsa golide. Powonjezera kuthamanga kwa leaching, kukweza kubweza golide, kuchepetsa kugwiritsidwa ntchito kwa cyanide, komanso kuchepetsa kukula kwa zida, njirayi imatha kupititsa patsogolo phindu ndi kukhazikika kwa migodi ya golide. Ngakhale pali zovuta pakukhazikitsa kwake, ndi njira zoyenera zotetezera, kukweza zida, ndi njira zowonjezeretsa mtengo, migodi yochulukirachulukira idzatengera ukadaulo wapamwambawu m'tsogolomu. Pamene kufunikira kwa golidi kukukulirakulira, njira zotulutsira mpweya wabwino monga oxygen - leaching wolemera zitenga gawo lofunikira pakukwaniritsa izi ndikuchepetsa zovuta zachilengedwe komanso zachuma.