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 golidi ku Akmola Region ndi wa sericite - mtundu wa miyala yosinthika komanso golide wa sulfide wotsika - wokhala ndi mtundu wa quartz vein. Kukula kwa njere za golide ndikwabwino kwambiri, kugawidwa mosagwirizana, komanso kusagwirizana ndi sulfide. Miyalayo ili ndi golide wocheperako, pyrite, chalcopyrite, bismuth - tellurium sulfides, komanso galena, sphalerite, ndi zina zambiri, ndipo ndi ya refractory oyandama golide miyala. Pachiyambi choyamba cha migodi, njira zachikhalidwe zinali zovuta kuti zithetse bwino ores zovuta zotere, zomwe zimapangitsa kuti zikhale zochepa golide kuchira mlingos, kuwononga kwambiri zinthu, ndi kuwongolera kwachuma kwachuma.

II. Njira Yatsopano ndi Ntchito Yofunikira ya Sodium Cyanide

Pambuyo pa mayesero ambiri, zinadziwika kuti golide kuchuluka kwa magazi ndondomeko ndiyo njira yabwino kwambiri yochizira miyala iyi. Pochita izi, sodium cyanide imagwira ntchito yofunika kwambiri.

Sodium cyanide yapamwamba kwambiri yomwe timapereka yawonetsa ntchito yabwino kwambiri golide leaching ndondomeko wa mgodi uwu wagolide. Njira yopangira golide imakhala ndi ulamuliro wokhwima komanso wasayansi pa kuchuluka kwa sodium cyanide leaching agent: poyambira, kuchuluka kwa sodium cyanide leaching agent kumayendetsedwa pa 0.10%, ndipo kupopera mbewu mankhwalawa mwamphamvu ndi 20 - 30L / (TPD); pambuyo siteji yapakati, ndende yafupika 0.05% - 0.08%, ndipo mu siteji yomaliza, izo kusintha kwa 0.03% - 0.05%. Chiyerekezo cha kupopera mbewu mankhwalawa ndi 1: 2. Ngati pali zovuta zowonekera mu mulu, kuchuluka kwa kupopera mbewu mankhwalawa ndi kupopera mbewu mankhwalawa kumasinthidwa munthawi yake. The leached olemera madzi ndi adsorbed nthawi yonseyi, ndi adsorption mphamvu ndi 12 - 20 L/(tpd). Pamene kalasi ya madzi olemera ndi otsika kuposa 0.2g/m3 kapena palibe phindu lachuma, leaching imatha.

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

Pamgwirizano wonsewo, gulu lathu laukadaulo laukadaulo lidapereka njira zonse - zozungulira komanso zathunthu othandizira ukadaulo ku mgodi wa golidi. Kuyambira pachiyambi cha ntchitoyo, tinafufuza mozama m’dera la migodi. Poganizira zovuta za ore za mgodi wa golide, tidathandizira gulu la migodi ya golide kupanga ndondomeko yolondola komanso yolondola ya milu ya leaching kuti zitsimikizire kuti sodium cyanide imatha kuchita bwino pamikhalidwe yoyenera kwambiri.

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.