Nazarin Kinross ya sanya Lobo-Marte capex akan dala biliyan 1

Aikin Lobo-Marte na Kinross Gold a arewacin Chile zai iya samar da jimillar oz miliyan 4.5. Zinariya fiye da shekaru 15 na ma'adinan da aka kiyasta a kan dala miliyan 995, a cewar wani bincike mai inganci (PFS) da aka fitar jiya Laraba.

Kusan kusan dala biliyan 1 don aikin, wanda ke gundumar ma'adinai ta Maricung, ya haɗa da dala miliyan 230.

Aikin zai ƙunshi buɗaɗɗen haƙar ma'adinan ramuka a adibas guda biyu tare da matsakaicin ma'aunin tsiri na 2.2, farfadowar tsibi-leach da kuma SART (sulphidization, acidification, sake yin amfani da shi da kauri).

Za a yi aikin hakar ma'adinai na tsawon shekaru 12, sannan bayan shekaru uku na sauran sarrafa su. Matsakaicin farashi mai dorewa akan kowane oz. An kiyasta zinari a Lobo-Marte akan dala $745; Ana sa ran adadin dawo da gwal zai kasance 71%.

Sakamakon tattalin arzikin aikin yana da matukar damuwa ga farashin gwal. A ajiyar Kinross na $1,200 kowace oz. Zinariya, ƙimar aikin yanzu (NPV) an kiyasta dala miliyan 150 kuma ƙimar cikin gida (IRR) shine kawai 7%. A farashin yarjejeniya na dogon lokaci na $1,500 kowace oz. Zinariya, NPV ya haura zuwa dala miliyan 770 da IRR zuwa 14%. Kuma a farashin tabo na $1,800 kowace oz. Zinariya, NPV ya karu zuwa dala biliyan 1.4 da IRR zuwa 21%.

NPV ya dogara ne akan ƙimar rangwame 5%, ƙididdiga daga 1 ga Janairu, 2024.

PFS ta yi la'akari da ginin aikin da aka fara a 2025, tare da samar da farko a cikin 2027. Kinross yana tsammanin hakar ma'adinai a Lobo-Marte zai biyo bayan sake farawa a ma'adinan La Coipa da ke kusa, wanda ke da nisan kilomita 50 arewa maso yamma.

"Aikin Lobo-Marte yana ba Kinross kyakkyawan zaɓi, zaɓin ci gaban kwayoyin halitta wanda ke da kyawawan farashi mai dorewa kuma yana ba da babbar fa'ida ga farashin gwal, ba tare da haɓaka buƙatun farashin aikin da haɗari ba," in ji J. Paul Rollinson, shugaban Kinross. da CEO, a cikin wani saki.

"Aikin yana wakiltar yuwuwar haɓakawa, tsawaita rayuwar ma'adinan na tsawon lokaci a cikin ingantaccen ikon hakar ma'adinai kuma yana ba da ƙarin ƙarin oza miliyan 6.4 ga ƙididdigar ajiyar gwal ɗin mu na yanzu, yana haɓaka rayuwar ma'adanin gabaɗaya na kamfanin. Yayin da muke ci gaba da nazarin yuwuwar wannan aikin na dogon lokaci, za mu ci gaba da ba da fifiko ga ƙarfin ma'auni da ƙayyadaddun babban jari."

A matsayin wani ɓangare na binciken, kamfanin ya ba da rahoton ajiyar kuɗi a Lobo-Marte a karon farko. Mai yuwuwar ajiyar kuɗi ya tsaya a tan miliyan 146.8 wanda ya sami darajar 1.36 g/t na zinari akan oza miliyan 6.4. Adadin yana ƙara ajiyar Kinross da kashi 25%.

Kamfanin yana shirin fara binciken yuwuwar kan Lobo-Marte daga baya a wannan shekara, da kuma kammala shi a cikin kwata na huɗu na 2021.

Ya ce za a yanke shawarar gini bisa dalilai da yawa, gami da farashin gwal da hasashen farashin, da ake tsammanin dawowar tattalin arziki, ba da izini da manyan abubuwan da Kinross ke ba da fifiko. Kinross ya sami aikin a cikin 2009 daga masu mallakar Teck Resources da kuma Anglo American.

A cikin Fabrairu, Kinross ya sanar da cewa zai ci gaba tare da sake farawa a La Coipa, wanda yake tsammanin samar da oz na zinare 690,000. daga 2022 zuwa 2024. Za a gyara abubuwan da suka kasance a sansanin kuma za a sake tura ma'adinan ma'adinan daga aikin Maricunga da ke kusa, wanda aka sanya kwanan nan akan kulawa da kulawa, zuwa wurin. Farashin babban birnin kasar na farko yana kan dala miliyan 225.

Tsakar rana ta Laraba, hannun jari na Kinross ya ragu kusan 1.8% akan TSE. Kamfanin yana da babban kasuwancin C $ 12.9 biliyan.

Aikace-aikacen H&G Machinery 's gyratory crusher liners a cikin 60-89 gyratory crusher

Akwai 60-89 gyratory crusher a cikin abokin cinikinmu (Qidashan Iron Mine). Rayuwar sabis na asali na manganese gyratory crusher liners gajere ne kuma lokutan maye gurbin sun fi watanni biyu a kowace shekara, wanda ke yin tasiri sosai kan ƙimar aiki na tsarin murkushewa kuma yana hana fa'ida ta gaba haɓakar tsarin masana'antu.

Domin inganta yadda ya dace da lalacewa ta hanyar murkushewa, rage lokacin maye gurbin layin, ta yadda za a inganta ƙimar aikin murkushewa da cimma ainihin tasirin ƙarancin saka hannun jari da ƙarin fitarwa, Qidashan Iron Mine ya nemi mu inganta nau'in rami na lalacewa. na rotary crusher, ya kara inganta rayuwar rufi ba tare da shafar yanayin aiki na kayan aiki ba, kuma ya inganta kayan da aka rufe, da nufin yawan niƙa na wasu ma'adanai.

Kamfanonin mu dangane da yanayin aiki na 60-89 gyratory crusher don ƙirƙira gami da kayan aikin ƙarfe na gyratory crusher don dacewa. Alloy liner ɓullo da yanayin aiki na erosive ma'adinai yana da dogon sabis rayuwa. Yana rage lokutan maye gurbin jirgin ruwa, yadda ya kamata ya rage lokacin maye gurbin jirgin ruwa, yana rage yawan amfani da kayan taimako da makamashi, yana rage yawan aikin aikin kayan aiki da ma'aikatan kulawa, don haka yana inganta yawan aiki na kayan aiki, yana ƙaruwa sosai. fitowar tsarin murkushewa, kuma yana da fa'idodin tattalin arziki, aminci da zamantakewa

Yanayin Aiki

Maɓallin mahimmanci na aikin crusher shine ƙirar rami na layi. Ramin layin kowane 60-89 gyratory crusher an tsara shi bisa ga tashar fitarwa na aikace-aikacen samarwa. A farkon mataki na beneficiation tsari zane, bisa ga daban-daban tsari layout da kuma aiki sigogi don saita crusher fitarwa tashar jiragen ruwa, sa'an nan kuma bisa ga zane na liners rami. Bayan da aka kammala zane na layin layi, tashar fitarwa a cikin ainihin samarwa yana buƙatar a kiyaye shi a ƙimar da aka saita, don tabbatar da ma'auni na ma'auni na duk sassan da ke gudana na crusher da uniform lalacewa na liner. Idan tashar fitarwa na kayan aiki yana buƙatar canza canjin kayan aiki a aikin samarwa, ya zama dole don sake fasalin rami na layi.

A halin yanzu, manganese karfe liner amfani a cikin 60-89 m crushing sake zagayowar crusher a cikin ma'adinai yankin na Qidashan Iron Mine yana da wadannan matsaloli: short rayuwar sabis, akai-akai maye, dogon shigarwa lokaci, hadaddun tabbatarwa aiki, low kayan aiki kudi, da dai sauransu.

• • Rayuwar sabis na asali na manganese gyratory crusher liners gajere ne, wanda rayuwar sabis na gyratory crusher concave segments yana kusan kwanaki 45, kuma na gyratory crusher mantles yana kusa da kwanaki 20. Wajibi ne a dakatar da na'ura akai-akai don maye gurbin farantin rufi, wanda ya haifar da ƙananan aiki na crusher.
  • Akwai sassa da yawa na gyratory crusher concave segments kuma tsarin shigarwa yana da rikitarwa. Kowane shigarwa yana ɗaukar kwanaki 5-7. Saboda farantin karfe na manganese na manganese zai shimfiɗa a ƙarƙashin ƙarfin murkushewa, ya zama dole a ajiye rata tsakanin faranti na rufi yayin shigarwa. Ratar kada ta kasance kunkuntar ko fadi sosai, in ba haka ba, aikin yau da kullun na farantin rufi zai shafi. Saboda haka, yana ɗaukar ƙarin lokaci don shigar da farantin rufi. Yana ɗaukar fiye da watanni biyu don maye gurbin layin injin murkushe gyratory crusher kowace shekara, wanda ke da matuƙar ƙuntata sarari don haɓaka fitowar tsarin.
  • Za a kawar da rata tsakanin farantin karfe na manganese lokacin da aka yi amfani da ƙarfe na manganese don haɓaka kayan ƙarfe na manganese yayin samarwa. A wannan lokacin, ɓangaren da aka fadada yana buƙatar tsarawa a cikin lokaci don kula da rata. Idan an kawar da cirewa, ana watsa matsanancin damuwa na farantin baya na baya zuwa firam, wanda zai iya haifar da lalacewa ga firam kuma farashin kulawa yana da yawa. Ayyukan kulawa yana da rikitarwa kuma yana buƙatar dakatar da shi, wanda ya rage yawan aiki na kayan aiki.

Zaɓin Kayan Kaya Da Inganta Kogo

Dangane da yanayin aiki, injiniyan mu ya fara tsara sabbin kayan layi na kayan aiki kuma an haɓaka sabon nau'in rami na layi. Ingantattun ramin layin layi tare da ingantaccen kayan haɗin gwal na iya tsawaita rayuwar sabis na layin kuma rage lokacin maye gurbin kowane layi.

Ingantattun layin yana da abubuwan haɓakawa masu zuwa.

1. An inganta yankin murkushewa kuma an daidaita shi don damuwa na kowane yanki na murkushe ya zama daidai kuma lalacewa ya daidaita.
2. An inganta ƙirar ɗakin murƙushewa, ragowar lalacewa na alkyabba da concave ya ragu kuma ya fi dacewa, kuma daidaitattun ma'auni da amfani da alkyabbar rigar da concave an inganta zuwa mafi girma. An inganta ƙirar ɗakin murƙushewa, raguwar raguwar nauyin mazugi na mazugi da mazugi mai motsi yana da ƙasa kuma ya fi dacewa, kuma ma'auni da ma'auni na amfani da alkyabba da concave an inganta zuwa mafi girma.
3. An zaɓi nau'ikan kayan haɗi daban-daban don saduwa da buƙatun daban-daban na damuwa daban-daban da yanayin sawa akan farantin suturar kowane ɓangare na ɗakin murƙushewa. Layer na farko zuwa Layer na huɗu na ɓangaren gyratory crusher concave an yi shi da babban simintin ƙarfe na chromium. Ta hanyar tsauraran simintin gyare-gyare da tsarin kula da zafi, taurin farko na iya kaiwa 600hbn, wanda zai iya saduwa da buƙatun babban juriya na rufin rufi a tsakiyar da ƙananan sassan murƙushe ɗakin Layer na biyar an yi shi da babban simintin ƙarfe na manganese don saduwa da buƙatun. na tasiri juriya da sa juriya na rufin rufi a saman murƙushe ɗakin.
4. An ƙera ma'auni da kauri mai kauri don dacewa da gyratory crusher mantles a ƙarƙashin nau'ikan lalacewa daban-daban, don tsawaita rayuwar sabis na gyaggyarawa da kuma guje wa maye gurbin gyratory crusher mantles a gaba saboda gazawar kula da fitarwa. tashar jiragen ruwa na crusher a saita darajar. Tsarin Concave na Cikin Grasser yana ɗaukar ƙira uku-Layer, da sassa daban-daban ana iya maye gurbin gwargwadon yanayin sa da yawa na ƙwayoyin cututtukan da ke tattare da kayan aikin an rage.
5. Hanyar shigarwa na ɓangaren gyratory crusher concave yana inganta, kuma an inganta aikin aiki. Saboda babban chromium alloy kayan da aka zaba daga farkon Layer zuwa Layer na hudu, kamar yadda aka nuna a cikin siffa 3, ba zai wuce a ƙarƙashin tasirin murkushe ƙarfin waje ba, don haka ba lallai ba ne don ajiyewa da daidaita rata tsakanin faranti na rufi. a lokacin shigarwa. Za a iya ɗaukar shigar da lamba kai tsaye don haɓaka aikin shigarwa da rage lokacin amfani da farantin rufin. Dubi Hoto na 4 don daidaita nau'in fil ɗin taper tsakanin faranti na biyar na ƙayyadaddun faranti masu ɗorewa, wanda baya ɗaukar lokaci mai yawa don daidaitawa kamar ainihin shigarwa na faranti mai rufi.
6. Gyratory crusher mantles abu zaɓi Mn18Cr2NiMoV gami karfe. A ƙarƙashin wannan sabon abu, tsawon rayuwar rigar na iya ƙaruwa da 20%.

@Nick Sun       [email protected]