Iphrojekthi ye-Heap Leaching yeMayini Yegolide esifundeni sase-Akmola, e-Kazakhstan

Emkhakheni wezimayini zegolide, ubuchwepheshe obusebenzayo bokumbiwa kanye nama-reagents amakhemikhali asezingeni eliphezulu kubalulekile ekwandiseni ukukhiqizwa kanye nokwenza ngcono izinzuzo zomnotho. Namuhla, sizogxila ku-a imayini yegolide e-Akmola Region, Kazakhstan, futhi uhlole ngokujulile izinguquko eziphawulekayo ezilethwe ngemva kokusebenzisa ikhwalithi ephezulu. i-sodium cyanide ehlinzekwa yinkampani yethu.

I. Izinselelo Zomklamo Wezimayini Zegolide Esifundeni sase-Akmola

Imayini yegolide e-Akmola Region ingeye-sericite - uhlobo lwamatshe ashintshiwe kanye negolide eliphansi le-sulfide - elinohlobo lwe-quartz vein. Usayizi wokusanhlamvu wegolide muhle ngokwedlulele, awusatshalaliswa ngokungalingani, futhi unobudlelwano obungebuhle nama-sulfide. I-ore iqukethe inani elincane legolide lendabuko, i-pyrite, i-chalcopyrite, i-bismuth - tellurium sulfides, kanye ne-galena, i-sphalerite, njll., futhi ingeye insimbi yegolide entantayo eyinqaba. Esigabeni sokuqala sokumbiwa kwezimayini, izindlela zendabuko kwakunzima ukucubungula ngempumelelo ama-ore anjalo ayinkimbinkimbi, okuholela ekubeni phansi izinga lokuthola igolides, ukumoshwa kwezinsiza okungathi sína, kanye nokuthuthukiswa okunzima kwezinzuzo zezomnotho.

II. Inqubo Emisha kanye Neqhaza Elibalulekile le-Sodium Cyanide

Ngemva kokuhlolwa okuningi, kwatholakala ukuthi igolide ukukhishwa kwenqwaba inqubo iyindlela enengqondo kakhulu yokwelapha le nsimbi. Kule nqubo, i-sodium cyanide idlala indima ebalulekile.

I-sodium cyanide yekhwalithi ephezulu esiyinikezayo ibonise ukusebenza okuhle kakhulu ku- igolide leaching inqubo yale mayini yegolide. Inqubo yokucwilisa igolide inokulawula okuqinile nokwesayensi ekugxilweni kwe-agent ye-sodium cyanide leaching: esigabeni sokuqala, ukugxila kwe-sodium cyanide leaching agent kulawulwa ku-0.10%, futhi amandla okuqala okufafaza yi-20 - 30L / (TPD); ngemuva kwesiteji esiphakathi, ukugxila kuncishisiwe ku-0.05% - 0.08%, futhi esigabeni sokugcina, kulungiswa ku-0.03% - 0.05%. Isilinganiso sekhefu lokufafaza yi-1: 2. Uma kunezinkinga ezisobala zokugeleza enqwabeni, amandla okufafaza kanye nesilinganiso sokuphumula sokufafaza kuzolungiswa ngesikhathi esifanele. Uketshezi olucebile olucwilisiwe luyakhangiswa kuyo yonke inqubo, futhi amandla e-adsorption angu-12 - 20 L/(tpd). Uma izinga loketshezi olucebile lingaphansi kuka-0.2g/m3 noma ingekho inzuzo yezomnotho, ukucwiliswa kuyaphela.

Ngemva kokuqedwa kokukhishwa kwe-leaching, ukuze kuqinisekiswe ukuthotshelwa kwemvelo, i-calcium hypochlorite eqinile isakazwa phezu kwenqwaba bese ifafazwa ngamanzi. Lapho i-p(CN -) kuketshezi lwe-reflux ingaphansi kuka-0.5×10. ukubulawa kwamagciwane kuhlangabezana nezindinganiso. Izinsalela ze-leaching zingathuthelwa egcekeni lokulahla i-slag, futhi uketshezi lwemfucuza lukhishwe ngokuqondile.

III. Izimpumelelo Ezimangalisayo

Kuyo yonke inqubo yokubambisana, ithimba lethu lochwepheshe bezobuchwepheshe linikeze yonke inqubo - nxazonke futhi ngokugcwele ukusekela kwezobuchwepheshe emayini yegolide. Kusukela ekuqaleni komsebenzi, sangena shí endaweni yezimayini. Ngokubuka izici eziyinkimbinkimbi ze-ore yemayini yegolide, sisize ithimba lemayini yegolide ekwenzeni uhlelo olunemininingwane nolunembile lwenqubo ye-heap leaching ukuze kuqinisekiswe ukuthi i-sodium cyanide ingenza ukusebenza kwayo okungcono kakhulu ngaphansi kwezimo ezifanele kakhulu.

Ngesikhathi senqubo yokucwiliswa kwegolide, ochwepheshe bamiswa endaweni isikhathi eside ukuze baqaphe amapharamitha enqubo ehlukahlukene ngesikhathi sangempela. Ngokwezinguquko zezinkomba ezibalulekile njengokugxilwa kwe-ejenti ye-sodium cyanide leaching, amandla okufafaza, kanye nesilinganiso sekhefu lokufafaza, iziphakamiso zochwepheshe zanikezwa ngesikhathi futhi kwenziwa ukulungiswa. Isibonelo, lapho izinkinga ze-sepage zitholakala enqwabeni, izingxoxo zobuchwepheshe zahlelwa ngokushesha, nohlelo lokufafaza lwenziwa kabusha ukuze kuqinisekiswe ukuqhubeka kahle kwenqubo yokucwilisa.

Ngesikhathi esifanayo, senza imizuliswano eminingana yokuqeqeshwa kochwepheshe kubasebenzi basezimayini zegolide. Okuqukethwe kokuqeqeshwa kwakuhlanganisa ukusetshenziswa okuphephile kwe-sodium cyanide, ukusebenza nokugcinwa kwemishini yokuhlanza inqwaba, kanye nezinkinga ezivamile nezisombululo enqubweni yokucwilisa. Ngenhlanganisela yezindlela zokuqeqesha zethiyori kanye nokwenziwayo, amakhono ochwepheshe kanye namazinga okusebenza ethimba lezimayini zegolide athuthukiswa ngempumelelo.

Kungaphansi kokwesekwa kwethu okuqhubekayo kwezobuchwepheshe kanye nezinsizakalo lapho izinga lokutholwa kwegolide lale mayini yegolide lenyuswe ngempumelelo lafinyelela ku-77%. Akukhona nje kuphela ukuthi ukukhiqizwa kwegolide kukhuphuke kakhulu, kodwa futhi izindleko zokukhiqiza ziye zehliswa kakhulu. Lezi zimpumelelo azibonisi kuphela ukusebenza okuhle kakhulu kwe-sodium cyanide yethu yekhwalithi ephezulu kodwa futhi zibonisa amandla aqinile ethimba lethu lochwepheshe lochwepheshe.

Emabhizinisini okumba igolide e-Kazakhstan nakwezinye izifunda emhlabeni jikelele, ukukhetha i-sodium cyanide yekhwalithi ephezulu kuyisinyathelo esibalulekile sokuthuthukisa ukuncintisana nokuzuza intuthuko esimeme. Njengomthengisi ochwepheshile we-sodium cyanide, inkampani yethu izoqhubeka nokusekela ifilosofi yekhwalithi kuqala kanye nesevisi - ethambekele, futhi ihlinzeke ngemikhiqizo namasevisi wekhwalithi ephezulu embonini yezimayini zegolide emhlabeni jikelele. Uma imayini yakho yegolide nayo ifuna izixazululo ezisebenza kahle neziyongayo zokumba, wamukelekile ukuthi usithinte futhi nivule ngokuhlanganyela isahluko esisha sokumbiwa kwegolide.