Kafukufuku wa Kinross amakhoma Lobo-Marte capex pa $ 1 biliyoni

Pulojekiti ya golide ya Kinross Gold ya Lobo-Marte kumpoto kwa Chile ikhoza kupanga oz okwana 4.5 miliyoni. golide pa moyo wa mgodi wazaka 15 pamtengo wokwana $995 miliyoni, malinga ndi kafukufuku wotheka (PFS) wotulutsidwa Lachitatu.

Mtengo wamtengo wapatali wa $1 biliyoni wa ntchitoyi, womwe uli m'boma la migodi la Maricunga, uli ndi ndalama zokwana $230 miliyoni.

Ntchitoyi idzakhala ndi migodi yotseguka m'madipoziti awiri okhala ndi chiyerekezo cha 2.2, kuchira kwa mulu wa leach ndi chomera cha SART (sulphidization, acidification, recycling and thickening).

Kukumba migodi kudzachitika kwa zaka 12, kutsatiridwa ndi zaka zitatu zotsalira zotsalira. Avereji ya ndalama zonse zochirikizira pa oz. a golidi ku Lobo-Marte akuyerekezedwa pa $745; chiwongola dzanja chobwezera golide chikuyembekezeka kukhala 71%.

Kubwerera kwachuma kwa polojekitiyi kumakhudzidwa kwambiri ndi mtengo wa golide. Pa mtengo wosungira wa Kinross wa $1,200 pa oz. golide, mtengo wamtengo wapatali wa polojekitiyi (NPV) akuyerekezedwa pa $ 150 miliyoni ndipo mtengo wake wamkati (IRR) ndi 7% yokha. Pamgwirizano wanthawi yayitali $1,500 pa oz. golide, NPV ikukwera kufika $770 miliyoni ndi IRR kufika 14%. Ndipo pamtengo wamba wa $1,800 pa oz. golide, NPV ikukwera kufika $1.4 biliyoni ndi IRR kufika 21%.

NPV idatengera kuchotsera kwa 5%, kuyambira pa Januware 1, 2024.

PFS ikuganiza zomanga pulojekiti kuyambira mu 2025, ndi kupanga koyamba ku 2027. Kinross akuyembekeza kuti migodi ku Lobo-Marte idzatsatira kuyambiranso pa mgodi wapafupi wa La Coipa, womwe uli pamtunda wa 50 km kumpoto chakumadzulo.

"Pulojekiti ya Lobo-Marte imapatsa Kinross njira yabwino kwambiri yopangira chitukuko yomwe ili ndi ndalama zochirikizira zonse komanso imapereka mwayi wowonjezera pamtengo wagolide, popanda kuonjezera mtengo wa polojekiti komanso chiwopsezo," atero a J. Paul Rollinson, Purezidenti wa Kinross. ndi CEO, pakumasulidwa.

"Ntchitoyi ikuyimira mwayi wokulirapo wa moyo wa migodi wanthawi yayitali m'malo abwino amigodi ndipo ikupereka ndalama zokwana 6.4 miliyoni kuwonjezera pa zomwe tikunena pano zosungira golide, zomwe zikuwonjezera moyo wamakampani osungira. Pamene tikupita patsogolo ndi kafukufuku wothekera kwa polojekitiyi yomwe yatenga nthawi yayitali, tipitiliza kuyika patsogolo mphamvu zamabanki komanso kugawa ndalama moyenera. "

Monga gawo la kafukufukuyu, kampaniyo idanenanso zosungirako ku Lobo-Marte koyamba. Matani 146.8 miliyoni okwana 1.36 g/t golide pa 6.4 miliyoni okhala ndi ma ounces. Chiwerengerochi chikuwonjezera nkhokwe za Kinross ndi 25%.

Kampaniyo ikukonzekera kuyambitsa kafukufuku wotheka ku Lobo-Marte kumapeto kwa chaka chino, ndikumaliza gawo lachinayi la 2021.

Ikuti chigamulo chomanga chidzapangidwa kutengera zinthu zingapo, kuphatikiza mtengo wa golide ndi kuyerekeza kwamitengo, kubweza kwachuma komwe akuyembekezeredwa, kuloleza komanso zofunikira za Kinross. Kinross adapeza ntchitoyi mu 2009 kuchokera kwa eni ake a Teck Resources ndi Anglo American.

Mu February, Kinross adalengeza kuti ipitilira kuyambiranso ku La Coipa, yomwe ikuyembekeza kupanga 690,000 oz yofanana ndi golide. kuyambira 2022 mpaka 2024. Zomangamanga zomwe zilipo pamsasawo zidzakonzedwanso ndipo zombo za migodi zochokera ku Maricunga zapafupi, zomwe posachedwapa zaikidwa pa chisamaliro ndi kukonza, zidzatumizidwa ku malo. Ndalama zoyambira zoyambira zimayikidwa pa $225 miliyoni.

Masana Lachitatu, katundu wa Kinross adatsika pafupifupi 1.8% pa TSE. Kampaniyo ili ndi ndalama zokwana $ 12.9 biliyoni zamsika.

Kugwiritsa ntchito zida za H&G Machinery 's gyratory crusher mu 60-89 gyratory crusher.

Pali 60-89 gyratory crusher mwa kasitomala wathu (Qidashan Iron Mine). Moyo wautumiki wa manganese opangira ma gyratory crusher liners ndiufupi ndipo nthawi zosinthira zimapitilira miyezi iwiri pachaka, zomwe zimakhudza kwambiri magwiridwe antchito a makina ophwanyidwa ndikuletsa kupindula kotsatira Kuwonjezeka kwa zotulutsa zamafakitale.

Kuti bwino kusintha kuvala liner moyo wa crusher, kufupikitsa liner m'malo nthawi, kuti kusintha mlingo wa ophwanya ntchito ndi kukwaniritsa zotsatira zenizeni za ndalama zochepa ndi linanena bungwe zambiri, Qidashan Iron Mine anatipempha kukhathamiritsa avale liners patsekeke mtundu. cha chopondapo chozungulira, chinapititsa patsogolo moyo wa chiwombankhanga popanda kusokoneza momwe zipangizo zimagwirira ntchito, ndikukweza zida zachitsulo, zomwe zimayang'ana kuti migodi ina ikhale yokwera kwambiri.

Zopangira zathu zozikidwa pa 60-89 gyratory crusher work condition to design alloy steel gyratory crusher liners kuti zigwirizane. The alloy liner yopangidwa ndi momwe amagwirira ntchito a erosive ore amakhala ndi moyo wautali wautumiki. Amachepetsa nthawi ya lining bolodi m'malo, mogwira kufupikitsa nthawi ya akalowa bolodi m'malo, amachepetsa kwambiri kumwa kwa zipangizo wothandiza ndi mphamvu, amachepetsa mphamvu ya ntchito zida ntchito ndi ogwira ntchito yokonza, motero kwambiri bwino ntchito mlingo wa zida, kumawonjezera linanena bungwe coarse kuphwanya dongosolo, ndipo ali zoonekeratu phindu zachuma, chitetezo ndi chikhalidwe

Zogwirira Ntchito

Chofunikira kwambiri pakuchita bwino kwa crusher ndi kapangidwe ka liner cavity. Mphepete mwa liner ya 60-89 gyratory crusher iliyonse imapangidwa molingana ndi doko lotulutsira ntchito yopanga. Kumayambiriro kwa gawo beneficiation ndondomeko kamangidwe, malinga ndi osiyana ndondomeko masanjidwe ndi magawo ntchito kukhazikitsa doko crusher kumaliseche, ndiyeno malinga ndi kamangidwe ka liners patsekeke. Mapangidwe a liner atatha kumalizidwa, doko lotayira pakupanga kwenikweni liyenera kusungidwa pamtengo wokhazikitsidwa, kuti zitsimikizire kupsinjika kwa magawo onse othamanga a crusher ndi kuvala yunifolomu ya liner. Ngati doko lotulutsira zida likufunika kusinthidwa pamachitidwe opanga, ndikofunikira kukonzanso liner.

Pakali pano, manganese zitsulo liner ntchito 60-89 coarse kuphwanya mkombero crusher m'dera migodi ya Qidashan Iron Mine ali ndi mavuto otsatirawa: moyo wautumiki waufupi, m'malo pafupipafupi, nthawi yaitali unsembe, ntchito yokonza zovuta, otsika zida ntchito mlingo, ndi zina.

• • Moyo wautumiki wazitsulo zoyambira za manganese gyratory crusher ndi zazifupi, zomwe moyo wautumiki wa magawo a gyratory crusher concave ndi pafupifupi masiku 45, ndipo zobvala za gyratory crusher ndi masiku 20. Ndikofunikira kuyimitsa makina pafupipafupi kuti mulowe m'malo mwa mbale, zomwe zimapangitsa kuti chopondapo chichepetse.
  • Pali zidutswa zambiri za magawo a gyratory crusher concave ndipo njira yoyikamo ndiyovuta. Kukhazikitsa kulikonse kumatenga masiku 5-7. Chifukwa mbale yachitsulo ya manganese idzapitirira pansi pa mphamvu yophwanyidwa, m'pofunika kusunga kusiyana pakati pa mbale zoyatsira panthawi yoyika. Kusiyana kwake sikuyenera kukhala kocheperako kapena kokulirapo, apo ayi, magwiridwe antchito amtundu wamba adzakhudzidwa. Choncho, zimatenga nthawi yochuluka kuti muyike mbale yachitsulo. Zimatenga miyezi yopitilira iwiri kuti mulowe m'malo mwa chopondapo chophwanyira chophwanyira chaka chilichonse, chomwe chimalepheretsa kwambiri mpata wowongolera makinawo.
  • Kusiyana pakati pa mbale zazitsulo za manganese kudzachotsedwa pamene chitsulo cha manganese chidzagwiritsidwa ntchito powonjezera zitsulo za manganese panthawi yopanga. Panthawi imeneyi, gawo lowonjezera liyenera kukonzedwa panthawi yake kuti muchepetse kusiyana. Ngati chilolezocho chitachotsedwa, kupanikizika kowonjezereka kwa mbale yakumbuyo kumaperekedwa ku chimango, zomwe zingayambitse kuwonongeka kwa chimango ndipo mtengo wokonza ndi wokwera. Ntchito yokonza ndi yovuta ndipo iyenera kuyimitsidwa, zomwe zimachepetsa kuchuluka kwa ntchito ya zipangizo.

Kusankha Zinthu Ndi Kupititsa patsogolo Cavity

Kutengera momwe amagwirira ntchito, injiniya wathu akuyamba kupanga zomangira zatsopano ndipo mtundu watsopano wa liner wapangidwa. Mphepete mwa liner yabwino kuphatikiza ndi zida zokongoletsedwa za alloy zimatha kutalikitsa moyo wautumiki wa liner ndikuchepetsa nthawi yosinthira liner iliyonse.

Liner yokhathamiritsa ili ndi zosintha zotsatirazi.

1. Malo ophwanyidwa amakongoletsedwa bwino komanso oyenerera kuti kupsinjika kwa chigawo chilichonse chophwanyidwa ndi yunifolomu ndipo kuvala kumakhala koyenera.
2. Mapangidwe a chipinda chophwanyira amapangidwa bwino, kulemera kotsalira kwa chovala ndi concave kumakhala kochepa komanso kosasinthasintha, ndipo chiŵerengero chofananira ndi kugwiritsidwa ntchito kwa chovalacho ndi concave chimakhala bwino kwambiri. Mapangidwe a chipinda chophwanyira amapangidwa bwino, kulemera kotsalira kwa kondomu yokhazikika ndi kusuntha kwa cone liner kumakhala kochepa kwambiri, ndipo chiŵerengero chofananira ndi kugwiritsidwa ntchito kwa chovalacho ndi concave chimapangidwa bwino kwambiri.
3. Zida zosiyanasiyana za alloy zimasankhidwa kuti zigwirizane ndi zofunikira zosiyanasiyana za kupsinjika maganizo ndi kuvala pazitsulo zazitsulo za gawo lililonse la chipinda chophwanyidwa. Wosanjikiza woyamba mpaka wachinayi wagawo la gyratory crusher concave amapangidwa ndi aloyi wachitsulo wapamwamba kwambiri wa chromium. Kupyolera mwa kuponyera okhwima ndi kutentha ndondomeko mankhwala, kuuma koyamba angafikire 600hbn, amene angakwaniritse zofunika avale kukana akalowa mbale pakati ndi otsika mbali ya kuphwanya chipinda Chigawo chachisanu amapangidwa ndi mkulu manganese kuponyedwa zitsulo kukwaniritsa zofunika. za kukana mphamvu ndi kuvala kukana kwa mbale yachitsulo pamwamba pa chipinda chophwanyika.
4. Zovala zokhazikika komanso zokhuthala za gyratory crusher zimapangidwira kuti zigwirizane ndi zobvala za gyratory crusher pansi pa madigiri osiyanasiyana ovala, kuti atalikitse moyo wautumiki wa ma gyratory crusher mantle ndikupewa kusinthiratu zovala za gyratory crusher pasadakhale chifukwa cholephera kusunga kutulutsa. doko la crusher pamtengo wokhazikitsidwa. Gawo la gyratory crusher concave limagwiritsa ntchito mawonekedwe osanjikiza atatu, ndipo magawo osiyanasiyana amatha kusinthidwa malinga ndi mavalidwe osiyanasiyana Kuchulukitsa kwa ma gyratory crusher mantles kumawonjezeka, ndipo mtengo wa zobvala za zida zatsika.
5. Njira yoyika gawo la gyratory crusher concave imasinthidwa, ndipo magwiridwe antchito amawongoleredwa. Chifukwa cha aloyi yapamwamba ya chromium yosankhidwa kuchokera ku gawo loyamba mpaka lachinayi, monga momwe tawonetsera mkuyu. pa unsembe. Direct kukhudzana unsembe akhoza anatengera kufulumizitsa unsembe patsogolo ndi kuchepetsa kumwa nthawi akalowa mbale unsembe. Onani Chithunzi 4 cha mtundu wa taper pin fixation pakati pa gawo lachisanu la mbale zokhazikika za taper, zomwe sizitenga nthawi yochuluka kuti zisinthe ngati kuyika koyambirira kwa mbale zazikuluzikulu.
6. The gyratory crusher mantles material kusankha Mn18Cr2NiMoV alloy zitsulo. Pansi pa zinthu zatsopanozi, moyo wautali wa malaya ukhoza kuwonjezeka ndi 20%.

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