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'adinan zinare a yankin Akmola na mallakar nau'in dutse mai canzawa na sericite da kuma ƙaramin sulfide zinariya mai ɗauke da quartz venous venous. Girman ƙwayar zinare yana da kyau ƙwarai, ba a rarraba shi daidai ba, kuma ba shi da alaƙa da sulfide. Ma'adinan yana ɗauke da ƙaramin adadin zinariya na asali, pyrite, chalcopyrite, bismuth - tellurium sulfide, da kuma galena, sphalerite, da sauransu, kuma yana cikin ma'adinan zinariya mai laushi . A matakin farko na haƙar ma'adinai, hanyoyin gargajiya sun kasance da wahalar sarrafa irin waɗannan ma'adanai masu rikitarwa yadda ya kamata, wanda ya haifar da ƙarancin saurin dawo da zinare , ɓarnar albarkatu mai tsanani, da kuma wahalar inganta fa'idodin tattalin arziki.

II. Ƙirƙirar Tsari da Muhimmin Matsayin Sodium Cyanide

Bayan gwaje-gwaje da dama, an gano cewa tsarin zubar da zinare a cikin tarin ma'adanai shine hanya mafi dacewa don magance wannan ma'adinan. A cikin wannan tsari, sodium cyanide yana taka muhimmiyar rawa.

Babban sinadarin sodium cyanide da muke samarwa ya nuna kyakkyawan aiki a tsarin zubar da zinare na wannan ma'adinan zinare. Tsarin zubar da zinare yana da iko mai tsauri da kimiyya kan yawan sinadarin sodium cyanide: a matakin farko, ana sarrafa yawan sinadarin sodium cyanide a 0.10%, kuma ƙarfin fesawa na farko shine 20 - 30L/(TPD); bayan matakin tsakiya, yawan sinadarin ya ragu zuwa 0.05% - 0.08%, kuma a matakin ƙarshe, ana daidaita shi zuwa 0.03% - 0.05%. Rabon fesawa shine 1:2. Idan akwai matsalolin zubewa a cikin tarin, za a daidaita ƙarfin fesawa da rabon tazara na fesawa akan lokaci. Ruwan da aka zubar yana sha a duk tsawon aikin, kuma ƙarfin sha shine 12 - 20 L/(tpd). Idan matakin ruwa mai yawa ya ƙasa da 0.2g/m3 ko kuma babu wata fa'ida ta tattalin arziki, to fitar ruwa ta 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 duk tsawon aikin haɗin gwiwa, ƙungiyar ƙwararrunmu ta fasaha ta samar da tallafin fasaha ga ma'adinan zinare gaba ɗaya . Tun daga farkon aikin, mun zurfafa bincike a yankin ma'adinan. Ganin irin sarkakiyar halayen ma'adinan zinare, mun taimaka wa ƙungiyar ma'adinan zinare wajen tsara cikakken tsarin sarrafa tarin duwatsu 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.