Aikin Heap Leaching na Ma'adinan Zinariya a Yankin Akmola, Kazakhstan

A fagen hakar gwal, ingantattun fasahohin hakowa da ingantattun sinadarai masu inganci suna da mahimmanci don haɓaka samarwa da haɓaka fa'idodin tattalin arziki. A yau, za mu mayar da hankali kan a mine na zinariya a yankin Akmola, Kazakhstan, da zurfafa bincika manyan canje-canjen da aka kawo bayan amfani da inganci mai inganci. sodium cyanide kamfaninmu ya samar.

I. Kalubalen aikin hakar ma'adinan Zinariya a yankin Akmola

Ma'adinin zinare a yankin Akmola na cikin nau'in dutsen da aka canza da kuma low-sulfide zinariya - mai ɗauke da nau'in ma'adini. Girman hatsin zinare yana da kyau sosai, ba a rarraba shi ba, kuma yana da mummunan dangantaka da sulfides. Ma'adinan yana ƙunshe da ƙananan zinariya na asali, pyrite, chalcopyrite, bismuth - tellurium sulfides, da galena, sphalerite, da dai sauransu, kuma nasa ne. Tama mai kauri mai kauri. A cikin matakin farko na hakar ma'adinai, hanyoyin gargajiya sun kasance masu wahala don aiwatar da irin wannan hadaddun ma'adinai yadda ya kamata, wanda ya haifar da raguwa zinariya dawo da kudis, mummunar sharar albarkatu, da wahalar inganta fa'idodin tattalin arziki.

II. Ƙirƙirar Tsari da Muhimmin Matsayin Sodium Cyanide

Bayan gwaje-gwaje masu yawa, an ƙaddara cewa zinariya tsibi leaching tsari shine hanya mafi dacewa don magance wannan tama. A cikin wannan tsari, sodium cyanide yana taka rawar da ba dole ba.

Babban ingancin sodium cyanide da muke samarwa ya nuna kyakkyawan aiki a cikin tsarin leaching na zinariya na wannan ma'adanin zinariya. Tsarin leaching na zinari yana da tsauraran matakan kimiyya da ilimin kimiyya game da maida hankali na wakili na leaching sodium cyanide: a cikin matakin farko, ana sarrafa maida hankali na wakili na leaching sodium cyanide a 0.10%, kuma farkon zafin feshin shine 20 - 30L / (TPD); bayan mataki na tsakiya, an rage maida hankali zuwa 0.05% - 0.08%, kuma a mataki na karshe, an daidaita shi zuwa 0.03% - 0.05%. Matsakaicin tazarar spraying shine 1:2. Lokacin da akwai matsaloli masu tsauri a cikin tsibi, za a daidaita ƙarfin feshi da tazarar tazara a cikin lokaci. Ruwan da aka ɗora yana tallatawa a duk lokacin aiwatarwa, kuma ƙarfin adsorption shine 12 - 20 L / (tpd). Lokacin da darajar ruwa mai wadata ya kasance ƙasa da 0.2g/m3 ko kuma babu fa'idar tattalin arziki, leaching ya ƙare.

Bayan an kammala leaching, don tabbatar da bin muhalli, ana bazuwar sinadarin calcium hypochlorite a saman tudun sannan a fesa da ruwa. Lokacin da p (CN -) a cikin ruwan reflux ya kasance ƙasa da 0.5 × 10. disinfection ya dace da ka'idoji. Za a iya jigilar ragowar leaching zuwa farfajiyar zubar da ruwa, kuma ana fitar da ruwan sharar kai tsaye.

III. Nasarorin ban mamaki

A cikin tsarin haɗin gwiwar, ƙungiyar ƙwararrun ƙwararrunmu ta ba da duk - zagaye da cikakken tsari goyon bayan sana'a zuwa ma'adanin zinariya. Tun daga farkon aikin, mun zurfafa cikin yankin ma'adinai. Dangane da hadaddun halayen ma'adinin zinare, mun taimaka wa tawagar ma'adinan gwal wajen tsara cikakken tsari da tsari na tulin tsibi don tabbatar da cewa sodium cyanide zai iya yin aiki mafi kyau a ƙarƙashin yanayi mafi dacewa.

A lokacin aikin leaching na zinare, an ajiye masu fasaha a kan wurin na dogon lokaci don saka idanu kan sigogin tsari daban-daban a cikin ainihin lokaci. Dangane da canje-canje a cikin mahimman alamomi kamar ƙaddamar da wakili na leaching sodium cyanide, ƙarfin feshi, da fesa rabo tazara, an ba da shawarwarin ƙwararru a cikin lokaci kuma an yi gyare-gyare. Alal misali, lokacin da aka sami matsalolin ɗigon ruwa a cikin tulin, an shirya tattaunawar fasaha cikin sauri, kuma an sake inganta shirin feshin don tabbatar da ci gaba mai kyau na aikin leaching.

Hakazalika, mun kuma gudanar da zagaye na ƙwararrun horarwa ga ma'aikatan hakar gwal. Abubuwan da ke cikin horon sun ƙunshi amintaccen amfani da sodium cyanide, aiki da kuma kula da kayan aikin leken asiri, da matsalolin gama gari da mafita a cikin tsarin leaching. Ta hanyar haɗe-haɗen hanyoyin horo na ka'ida da aiki, ƙwarewar ƙwararru da matakan aiki na ƙungiyar ma'adinan gwal sun inganta yadda ya kamata.

Daidai ne a ƙarƙashin ci gaba da tallafin fasaha da sabis ɗinmu cewa an sami nasarar haɓaka ƙimar dawo da gwal na wannan ma'adanin gwal zuwa kashi 77%. Ba wai kawai samar da gwal ɗin ya ƙaru sosai ba, har ma an rage yawan farashin samarwa. Waɗannan nasarorin ba wai kawai suna nuna kyakkyawan aiki na babban ingancin sodium cyanide ba amma kuma suna nuna ƙarfin ƙarfin ƙungiyar ƙwararrun ƙwararrun mu.

Ga kamfanonin hakar gwal a Kazakhstan da sauran yankuna na duniya, zabar babban ingancin sodium cyanide wani muhimmin mataki ne don haɓaka gasa da samun ci gaba mai dorewa. A matsayin ƙwararren mai fitar da sinadari na sodium cyanide, kamfaninmu zai ci gaba da riƙe falsafar inganci na farko da sabis - daidaitacce, da samar da samfuran inganci da sabis don masana'antar hakar gwal ta duniya. Idan ma'adinan gwal ɗin ku kuma yana neman ƙarin ingantattun hanyoyin hakowa na tattalin arziki, maraba da tuntuɓar mu tare da buɗe sabon babi na hakar gwal.