Vale ya samar da kusan ton 250,000 na kayayyakin yashi mai ɗorewa, waɗanda aka ba da izini don maye gurbin yashi wanda galibi ana haƙawa ba bisa ka'ida ba.

Bayan shekaru 7 na bincike da zuba jarurruka na kimanin 50 miliyan reais, Vale ya haɓaka tsarin samar da samfurori na yashi mai inganci, wanda za'a iya amfani dashi a cikin masana'antar gine-gine.Kamfanin ya yi amfani da wannan tsari na samar da yashi zuwa yankin sarrafa tama a Minas Gerais, kuma ya canza kayan yashi wanda a farko ya buƙaci amfani da madatsun ruwa ko hanyoyin tarawa zuwa kayayyaki.Tsarin samarwa Yana ƙarƙashin kulawar inganci iri ɗaya kamar samar da taman ƙarfe.A bana, kamfanin ya sarrafa tare da samar da kusan ton 250,000 na kayayyakin yashi mai ɗorewa, kuma kamfanin yana shirin sayar da su ko ba da gudummawar su don samar da siminti, turmi da siminti ko kuma aikin shimfidar pavement.

Mista Marcello Spinelli, Mataimakin Shugaban Babban Shugaban Kasuwancin Iron Ore na Vale, ya ce samfuran yashi sakamakon ayyuka masu dorewa ne.Ya ce: “Wannan aikin ya sa mu samar da tattalin arziki madauwari a cikin gida.Akwai matukar bukatar yashi a masana'antar gine-gine.Samfuran yashi namu suna ba da ingantaccen madadin masana'antar gini, yayin da rage tasirin muhalli da zamantakewa na zubar wutsiya.Tasiri.”

Wurin hakar ma'adinai na Bulkoutu ɗorewar yadi na ajiyar kayayyakin yashi

Bisa kididdigar da Majalisar Dinkin Duniya ta yi, yawan bukatar yashi a duniya a duk shekara ya kai tan biliyan 40 zuwa 50.Yashi ya zama albarkatun kasa da aka fi amfani da su bayan ruwa, kuma ana amfani da wannan albarkatun ba bisa ka'ida ba da kuma farauta a duniya.

Ana ɗaukar samfuran yashi mai ɗorewa na Vale a matsayin samfurin ƙarfe na ƙarfe.Danyen tama a cikin nau'in dutsen da aka haƙa daga yanayi ya zama ƙarfe bayan hanyoyin sarrafa jiki da yawa kamar murkushewa, tantancewa, niƙa da amfana a masana'anta.Ƙirƙirar Vale ta ta'allaka ne a cikin sake sarrafa takin ƙarfe a cikin matakin fa'ida har sai ta kai ga buƙatun ingancin da ake buƙata kuma ya zama samfurin kasuwanci.A tsarin cin moriyar al'ada, waɗannan kayan za su zama wutsiya, waɗanda ake zubar da su ta hanyar amfani da madatsun ruwa ko a cikin tari.Yanzu, kowane ton na samfurin yashi da aka samar yana nufin rage tan guda na wutsiya.

Samfuran yashi da aka samar daga aikin sarrafa tama na ƙarfe an tabbatar da su 100%.Suna da babban abun ciki na siliki da ƙarancin ƙarfe mai ƙarancin ƙarfe, kuma suna da daidaituwar sinadarai da daidaiton girman barbashi.Mista Jefferson Corraide, babban manajan na Brucutu da Agualimpa hadedde ayyukan yankin, ya ce irin wannan samfurin yashi ba shi da haɗari."Kayayyakin namu yashi ana sarrafa su ta hanyoyin jiki, kuma ba a canza sinadarai na kayan yayin sarrafa su, don haka samfuran ba su da guba kuma ba su da illa."

Aikace-aikacen samfuran yashi na Vale a cikin kankare da turmi kwanan nan an tabbatar da su ta Cibiyar Binciken Kimiyya ta Brazil (IPT), Falcão Bauer da ConsultareLabCon, dakunan gwaje-gwaje ƙwararru uku.

Masu bincike daga Cibiyar Kula da Ma'adanai ta Jami'ar Queensland a Australia da Jami'ar Geneva a Switzerland suna gudanar da wani bincike mai zaman kansa don nazarin halayen samfuran yashi na Vale don fahimtar ko wannan madadin kayan gini da aka samu daga ma'adinai zai iya zama tushen ci gaba mai dorewa. yashi Da kuma rage yawan sharar da ayyukan hakar ma’adanai ke haifarwa sosai.Masu bincike suna amfani da kalmar "oresand" don yin nuni ga samfuran yashi waɗanda aka samo daga takin da aka samu ta hanyar sarrafawa.

sikelin samarwa

Vale ta kuduri aniyar sayar da ko ba da gudummawar sama da ton miliyan 1 na kayayyakin yashi nan da shekarar 2022. Masu sayan sa sun fito ne daga yankuna hudu da suka hada da Minas Gerais, Espirito Santo, Sao Paulo da Brasilia.Kamfanin ya yi hasashen cewa nan da shekarar 2023, yawan kayayyakin yashi zai kai tan miliyan biyu.

“A shirye muke mu kara fadada kasuwar aikace-aikacen kayayyakin yashi daga shekarar 2023. A saboda wannan dalili, mun kafa wata kungiya mai kwazo da za ta saka hannun jari a wannan sabuwar sana’a.Za su yi amfani da tsarin samar da yashi ga tsarin samar da da ake da su don biyan bukatar kasuwa."Mista Rogério Nogueira, Daraktan Kasuwancin Vale Iron Ore, ya ce.

Vale a halin yanzu yana samar da kayan yashi a ma'adinan Brucutu da ke San Gonzalo de Abaisau, Minas Gerais, wanda za'a sayar ko a ba da gudummawa.

Sauran wuraren hakar ma'adinai a Minas Gerais kuma suna yin gyare-gyaren muhalli da ma'adinai don haɗa hanyoyin samar da yashi.“Wadannan wuraren hakar ma’adinai suna samar da kayan yashi mai yawan siliki, waɗanda za a iya amfani da su a masana’antu daban-daban.Muna haɗin gwiwa tare da cibiyoyi da yawa ciki har da jami'o'i, cibiyoyin bincike da kamfanoni na cikin gida da na waje don samar da sababbin hanyoyin samar da sabon wutsiya na ƙarfe.Mafita."Mista André Vilhena, sabon manajan kasuwanci na Vale ya jaddada.

Baya ga amfani da ababen more rayuwa da ake da su a yankin hakar ma'adinan tama, Vale kuma ta ƙera hanyar sadarwar sufuri da ta ƙunshi layukan dogo da hanyoyi don jigilar kayayyakin yashi zuwa jihohi da dama a Brazil.“Manufarmu ita ce tabbatar da dorewar kasuwancin tama.Ta hanyar wannan sabon kasuwancin, muna fatan rage tasirin muhalli, yayin da muke neman dama don inganta aikin yi da kuma kara samun kudin shiga."Mista Verena ya kara da cewa.

kayayyakin muhalli

Vale yana gudanar da bincike kan aikace-aikacen wutsiya tun 2014. A bara, kamfanin ya buɗe masana'antar bulo ta Puku, wacce ita ce masana'antar gwaji ta farko don samar da samfuran gini ta amfani da wutsiya daga ayyukan hakar ma'adinai a matsayin babban albarkatun ƙasa.Kamfanin yana cikin yankin ma'adinai na Pico a Itabilito, Minas Gerais, kuma yana da nufin haɓaka tattalin arziƙin madauwari wajen sarrafa ma'adinan ƙarfe.

Cibiyar Ilimin Kimiyya da Fasaha ta Tarayya ta Minas Gerais da masana'antar bulo ta Pico sun ƙaddamar da haɗin gwiwar fasaha tare da tura masu bincike 10 da suka haɗa da furofesoshi, ƙwararrun gwaje-gwajen gwaje-gwaje, waɗanda suka kammala karatun digiri, digiri na biyu da kuma ɗaliban kwas ɗin fasaha zuwa masana'antar.A lokacin hadin gwiwa lokacin, za mu yi aiki a factory site, da kuma kayayyakin a lokacin da bincike da kuma ci gaban lokaci ba za a sayar ga waje duniya.

Vale kuma yana ba da haɗin kai tare da harabar Itabira ta Jami'ar Tarayya ta Itajuba don nazarin hanyar amfani da yashi don yin shimfida.Kamfanin yana shirin ba da gudummawar kayayyakin yashi ga yankin don yin shimfida.

Ƙarin ma'adinai mai dorewa

Baya ga haɓaka samfuran muhalli, Vale ya kuma ɗauki wasu matakai don rage wutsiya da sa ayyukan hakar ma'adinai su dore.Kamfanin ya himmatu wajen bunkasa fasahar sarrafa busasshen da ba ya bukatar ruwa.A halin yanzu, kusan kashi 70% na kayan ƙarfe na Vale ana samar da su ta hanyar bushewa, kuma wannan rabon ba zai canza ba ko da bayan an ƙara ƙarfin samarwa na shekara zuwa tan miliyan 400 kuma an fara aiwatar da sabbin ayyuka.A cikin 2015, ƙarfen ƙarfe da aka samar ta hanyar bushewa kawai ya kai kashi 40% na jimlar kayan da aka fitar.

Ko za a iya amfani da bushes ɗin yana da alaƙa da ingancin ƙarfe da ake haƙawa.Iron tama a cikin Carajás yana da babban abun ciki na baƙin ƙarfe (sama da 65%), kuma tsarin sarrafawa kawai yana buƙatar murkushewa da kuma nunawa bisa ga girman ƙwayar.

Matsakaicin adadin ƙarfe na wasu wuraren hakar ma'adinai a Minas Gerais shine 40%.Hanyar maganin gargajiya ita ce ƙara yawan ƙarfe na ma'adinai ta hanyar ƙara ruwa don amfana.Yawancin wutsiya da aka samu ana tattara su a cikin madatsun ruwa na wutsiya ko ramuka.Vale ya yi amfani da wata fasaha don samun fa'ida daga ƙarancin ƙarfe mai ƙarancin daraja, wato busasshen magnetic rabuwa na fasaha mai kyau (FDMS).Tsarin magnetic rabuwa na ƙarfe tama ba ya buƙatar ruwa, don haka babu buƙatar amfani da madatsun wutsiya.

Busasshen fasahar rabuwar maganadisu na tama mai kyau an ƙera shi ne a Brazil ta kamfanin NewSteel, wanda Vale ya samu a cikin 2018, kuma an yi amfani da shi a cikin injin matukin jirgi a Minas Gerais.Za a fara amfani da masana'antar kasuwanci ta farko a yankin aiki na Vargem Grande a cikin 2023. Kamfanin zai sami damar samar da ton miliyan 1.5 na shekara-shekara da jimillar jarin dalar Amurka miliyan 150.

Wata fasahar da za ta iya rage bukatar dam din wutsiya ita ce tace wutsiya da adana su cikin busassun rijiyoyin.Bayan karfin samar da ma'adinin ƙarfe na shekara-shekara ya kai tan miliyan 400, yawancin tan miliyan 60 (wanda ke lissafin kashi 15% na yawan ƙarfin samarwa) za su yi amfani da wannan fasaha don tacewa da adana wutsiya.Vale ya bude wata masana'antar tace wutsiya a cikin babban yankin ma'adinai na Varzhin, kuma yana shirin bude wasu masana'antar tace wutsiya guda uku a cikin kwata na farko na 2022, daya daga cikinsu yana cikin yankin hakar ma'adinai na Brucutu, sauran biyun kuma suna cikin yankin Itabira Mining. .Bayan haka, ma'adinan baƙin ƙarfe da tsarin amfani da rigar na gargajiya ke samarwa zai kai kashi 15% na yawan ƙarfin da ake samarwa, kuma za a adana wutsiyar da aka samar a cikin madatsun ruwa na wutsiya ko kuma a kashe ramukan ma'adinai.