The Heap Leaching Project ya Gold Mine in Akmola Region, Kazakhstan

Pankhani ya migodi ya golide, matekinoloje ogwira ntchito m'zigawo ndi ma reagents apamwamba kwambiri amankhwala ndi ofunikira kuti achulukitse kupanga ndikuwongolera phindu lazachuma. Lero, tiyang'ana pa a golide wa golide m'chigawo cha Akmola, Kazakhstan, ndikuwunika mozama zakusintha kodabwitsa komwe kunachitika atagwiritsa ntchito zida zapamwamba kwambiri. sodium cyanide zoperekedwa ndi kampani yathu.

I. Mavuto a Pulojekiti ya Mgodi wa Golide m'chigawo cha Akmola

Mgodi wa golide ku Akmola Region ndi wa mtundu wa miyala yosinthidwa ya sericite ndi mtundu wa golide wochepa wa sulfide. Kukula kwa tirigu wofalikira wa golide ndi kocheperako, kosagawika mofanana, ndipo uli ndi ubale woipa ndi sulfide. Mgodiwu uli ndi golide wochepa wachilengedwe, pyrite, chalcopyrite, bismuth-tellurium sulfides, komanso galena, sphalerite, ndi zina zotero, ndipo ndi wa golide woyandama wosasunthika . Poyamba migodi, njira zachikhalidwe zinali zovuta kukonza bwino miyala yovuta ngati imeneyi, zomwe zimapangitsa kuti golide ayambe kuchira pang'ono , kuwononga chuma kwambiri, komanso kusintha kwachuma.

II. Njira Yatsopano ndi Ntchito Yofunikira ya Sodium Cyanide

Pambuyo pa mayeso ambiri, zidapezeka kuti njira yochotsera golide mulu ndiyo njira yoyenera kwambiri yochizira miyala iyi. Munjira imeneyi, sodium cyanide imagwira ntchito yofunika kwambiri.

Sodium cyanide yapamwamba kwambiri yomwe timapereka yawonetsa bwino kwambiri mu ndondomeko yochotsa golide mu mgodi wa golide uwu. Njira yochotsera golide ili ndi ulamuliro wokhwima komanso wasayansi pa kuchuluka kwa sodium cyanide leaching agent: mu gawo loyamba, kuchuluka kwa sodium cyanide leaching agent kumayendetsedwa pa 0.10%, ndipo mphamvu yoyamba yopopera ndi 20 - 30L/(TPD); pambuyo pa gawo lapakati, kuchuluka kumachepetsedwa kufika pa 0.05% - 0.08%, ndipo mu gawo lomaliza, imasinthidwa kufika pa 0.03% - 0.05%. Chiŵerengero cha nthawi yopopera ndi 1:2. Ngati pali mavuto oonekera bwino mu mulu, mphamvu yopopera ndi nthawi yopopera zidzasinthidwa munthawi yake. Madzi olemera ochotsedwa amamizidwa panthawi yonseyi, ndipo mphamvu yopopera ndi 12 - 20 L/(tpd). Ngati kalasi ya madzi olemera ili yochepera 0.2g/m3 kapena palibe phindu la zachuma, kuchotsedwa kumatha.

Kuwotchera kukamalizidwa, pofuna kuonetsetsa kuti chilengedwe chikugwirizana ndi chilengedwe, calcium hypochlorite yolimba imafalikira pamwamba pa mulu ndi kupopera madzi. Pamene p(CN -) mu reflux madzi ndi zosakwana 0.5×10. mankhwala ophera tizilombo amakumana ndi miyezo. Zotsalira za leaching zitha kutengedwera ku bwalo lotayira slag, ndipo zinyalala zimatulutsidwa mwachindunji.

III. Zopambana Zodabwitsa

Pa nthawi yonse yogwirira ntchito limodzi, gulu lathu la akatswiri aukadaulo linapereka chithandizo chaukadaulo chathunthu ku mgodi wagolide. Kuyambira pachiyambi cha polojekitiyi, tinayang'ana kwambiri dera la migodi. Poganizira za zovuta za mgodi wagolide, tinathandiza gulu la mgodi wagolide kupanga dongosolo lolondola komanso lolondola la njira yochotsera miyala yamtengo wapatali kuti tiwonetsetse kuti sodium cyanide ikhoza kugwira ntchito bwino kwambiri m'mikhalidwe yoyenera.

Panthawi yotulutsa golide, akatswiri adayima pamalopo kwa nthawi yayitali kuti ayang'anire magawo osiyanasiyana munthawi yeniyeni. Malinga ndi kusintha kwa zisonyezo zazikulu monga kuchuluka kwa sodium cyanide leaching agent, kupopera mbewu mankhwalawa, ndi kupopera mbewu mankhwalawa chiŵerengero cha intervals, malingaliro akatswiri anaperekedwa munthawi yake ndipo zosintha zinapangidwa. Mwachitsanzo, pamene vuto la kutha kwa madzi litapezeka mu mulu, zokambirana zaukadaulo zidakonzedwa mwachangu, ndipo pulani yopopera mbewuyi idakonzedwanso kuti zitsimikizire kupita patsogolo kwabwino kwa leaching.

Nthawi yomweyo, tinkachitanso maphunziro angapo aukadaulo kwa ogwira ntchito m'migodi ya golide. Zomwe zili mu maphunzirowa zidakhudza kugwiritsa ntchito bwino sodium cyanide, kagwiritsidwe ntchito ndi kukonza zida za milu ya leaching, komanso mavuto omwe amapezeka ndi mayankho pakuwongolera. Kupyolera mu njira zophunzitsira zongoyerekeza ndi zothandiza, luso laukadaulo ndi magwiridwe antchito a gulu la migodi ya golide zidawongoleredwa bwino.

Ndi chifukwa cha chithandizo chathu mosalekeza ndi ntchito zomwe golide wa mgodi wa golideyu wakwera mpaka 77%. Sikuti kupanga golide kokha kwawonjezeka kwambiri, komanso mtengo wamtengo wapatali wachepetsedwa kwambiri. Zomwe takwanitsazi sizimangowonetsa magwiridwe antchito abwino kwambiri a sodium cyanide yathu yapamwamba komanso kulimba kwa gulu lathu laukadaulo.

Kwa mabizinesi opangira migodi golide ku Kazakhstan ndi madera ena padziko lonse lapansi, kusankha sodium cyanide yapamwamba kwambiri ndi gawo lofunikira popititsa patsogolo mpikisano ndikupeza chitukuko chokhazikika. Monga katswiri wotumiza kunja kwa sodium cyanide, kampani yathu ipitilizabe kutsata malingaliro amtundu woyamba komanso wotsogola - wokhazikika, ndikupereka zogulitsa ndi ntchito zapamwamba kwambiri pamsika wamigodi wagolide padziko lonse lapansi. Ngati mgodi wanu wa golide ukukufunanso njira zopezera golide, chonde titumizireni ndikutsegula limodzi gawo latsopano la migodi ya golide.