Vale yakagadzira 250,000 matani ezvigadzirwa zvejecha, izvo zvakatenderwa kutsiva jecha rinowanzocherwa zvisiri pamutemo.

Mushure memakore manomwe ekutsvaga nekudyara kweanosvika mamirioni makumi mashanu reais, Vale yakagadzira nzira yekugadzira yemhando yepamusoro zvigadzirwa zvejecha, izvo zvinogona kushandiswa muindasitiri yekuvaka.Kambani yakashandisa iyi jecha kugadzirwa kwechigadzirwa kunzvimbo yesimbi muMinas Gerais, uye inoshandura zvinhu zvejecha izvo pakutanga zvaida kushandiswa kwemadhamu kana kurongedza nzira kuita zvigadzirwa.Iyo nzira yekugadzira Inoenderana nehumwe hutongi hwemhando sekugadzirwa kwesimbi.Gore rino, kambani yakagadzirisa uye yakagadzira matani mazana maviri nemakumi mashanu ezviuru zvezvigadzirwa zvejecha zvinogara zviripo, uye kambani inoronga kutengesa kana kuzvipa kuti igadzire kongiri, dhaka nesimende kana kuti pavement paving.

Mr. Marcello Spinelli, Mutevedzeri Mukuru weVale's Iron Ore Business, akataura kuti zvigadzirwa zvejecha zvinokonzerwa nekushanda kwakasimba.Anoti: “Chirongwa ichi chaita kuti tiite circular economy mukati.Pane kudiwa kukuru kwejecha muindasitiri yekuvaka.Zvigadzirwa zvedu zvejecha zvinopa imwe nzira yakavimbika kune indasitiri yekuvaka, uku ichidzikisa nharaunda nemagariro kukanganisa kwekurasa tailings.Kufurira.”

Bulkoutu migodhi nzvimbo inochengetedzwa jecha chigadzirwa chekuchengetedza yadhi

Maererano nefungidziro dzeSangano Romubatanidzwa Wenyika Dzepasi Pose, kudiwa kwejecha pasi rose pagore kunosvika matani 40 kusvika ku50 mabhiriyoni.Jecha rave chisikwa chinoshandiswa zvakanyanya mushure memvura, uye chiwanikwa ichi chiri kushandiswa zvisiri pamutemo uye nechisimba pasi rose.

Zvigadzirwa zvejecha zveVale zvinoonekwa sechigadzirwa chesimbi ore.Iyo mbishi ore iri muchimiro chedombo rakacherwa kubva kune zvakasikwa inove iron ore mushure memaitiro akati wandei ekugadzirisa emuviri akadai sekupwanya, kuongorora, kugaya uye kubatsirwa mufekitori.Vale's innovation iri mukudzokororwa kwesimbi ore by-zvigadzirwa muchikamu chekubatsirikana kusvika yasvika painodiwa mhando inodiwa uye yave chigadzirwa chekutengesa.Mumaitiro echinyakare ekubatsira, zvinhu izvi zvinova zvitunha, izvo zvinoraswa kuburikidza nekushandisa madhamu kana mumirwi.Ikozvino, matani ese ejecha chigadzirwa chinogadzirwa zvinoreva kudzikiswa kwetani imwe yemaswe.

Zvigadzirwa zvejecha zvinogadzirwa kubva kune iron ore process process ndeye 100% certified.Ivo vane yakakwira silicon yemukati uye yakanyanya kuderera simbi yemukati, uye ine yakakwirira makemikari kufanana uye particle size kufanana.VaJefferson Corraide, maneja mukuru weBrucutu neAgualimpa Integrated operations area, vakati rudzi urwu rwejecha chigadzirwa haruna ngozi."Zvigadzirwa zvedu zvejecha zvinogadziriswa nenzira dzemuviri, uye chimiro chemakemikari chemidziyo hachichinji panguva yekugadziriswa, saka zvigadzirwa hazvina chepfu uye hazvikuvadze."

Kushandiswa kwezvigadzirwa zvejecha reVale mukongiri nedhaka kwachangobva kusimbiswa neBrazilian Institute of Scientific Research (IPT), Falcão Bauer uye ConsultareLabCon, marabhoritari matatu ehunyanzvi.

Vatsvagiri kubva kuInstitute of Sustainable Minerals paUniversity yeQueensland kuAustralia uye University of Geneva kuSwitzerland vari kuita ongororo yakazvimirira yekuongorora maitiro ezvigadzirwa zvejecha reVale kuti vanzwisise kana iyi imwe nzira yekuvakisa inotorwa kubva musimbi inogona kuve inogoneka jecha Uye kuderedza zvakanyanya kuwanda kwemarara anogadzirwa nemabasa emigodhi.Vatsvagiri vanoshandisa izwi rekuti "oresand" kureva zvigadzirwa zvejecha izvo zvinobva kune ore-zvigadzirwa uye zvinogadzirwa kuburikidza nekugadzirisa.

chiyero chekugadzira

Vale yakazvipira kutengesa kana kupa matani anopfuura miriyoni ezvigadzirwa zvejecha panosvika 2022. Vatengi varo vanobva kumatunhu mana anosanganisira Minas Gerais, Espirito Santo, Sao Paulo neBrasilia.Iyo kambani inofanotaura kuti panosvika 2023, kubuda kwejecha zvigadzirwa kuchasvika 2 miriyoni matani.

"Takagadzirira kuwedzera musika wekushandisa wezvigadzirwa zvejecha kubva 2023. Nechinangwa ichi, takagadzira timu yakazvipira kuisa mari mubhizinesi idzva iri.Vanozoshandisa nzira yekugadzira chigadzirwa chejecha kune iripo yekugadzira nzira yekuzadzisa kudiwa kwemusika. "Mr. Rogério Nogueira, Mutungamiriri weVale Iron Ore Marketing, akadaro.

Vale parizvino iri kugadzira zvigadzirwa zvejecha pamugodhi weBrucutu muSan Gonzalo de Abaisau, Minas Gerais, izvo zvichatengeswa kana kupihwa.

Dzimwe nzvimbo dzemigodhi muMinas Gerais dziri kuitawo kugadzirisa kwezvakatipoteredza uye migodhi kubatanidza maitiro ekugadzira jecha.“Nzvimbo dzemigodhi idzi dzinogadzira zvinhu zvejecha zvine silicon yakakwira, izvo zvinogona kushandiswa mumaindasitiri akasiyana.Tiri kushanda pamwe nemasangano mazhinji anosanganisira mayunivhesiti, nzvimbo dzekutsvagisa uye makambani epamba neekunze kugadzira mhinduro nyowani dzekupa mitsva yesimbi ore.Nzira yekubuda."VaAndré Vilhena, maneja webhizinesi mutsva waVale vakasimbisa.

Pamusoro pekushandisa zvivakwa zviripo munzvimbo yekucherwa kwesimbi, Vale yakagadzirawo network yekufambisa inosanganisira njanji nemigwagwa yekutakura zvigadzirwa zvejecha kuenda kumatunhu akawanda muBrazil.“Chinangwa chedu ndechekuona kusimba kwebhizimusi resimbi.Kuburikidza nebhizinesi idzva iri, tinotarisira kuderedza kukanganisa kwezvakatipoteredza, tichitsvaga mikana yekusimudzira mabasa nekuwedzera mari.VaVerena vakawedzera.

ecological products

Vale yave ichiita tsvakiridzo nezve matailings application kubvira 2014. Gore rapfuura, kambani yakavhura Puku Brick Factory, inova fekitori yekutanga kuyedza kugadzira zvigadzirwa zvekuvaka vachishandisa miswe kubva kumabasa emigodhi sechinhu chikuru mbishi.Chigadzirwa ichi chiri munzvimbo inocherwa yePico kuItabilito, Minas Gerais, uye ine chinangwa chekusimudzira hupfumi hwedenderedzwa mukugadziriswa kwesimbi.

Federal Center yeSainzi neTekinoroji Dzidzo yeMinas Gerais nePico Brick Factory yakatanga kushanda pamwe chete uye yakatumira vaongorori gumi kusanganisira mapurofesa, nyanzvi dzemurabhoritari, vakapedza kudzidza, undergraduate uye vadzidzi vekosi yehunyanzvi kufekitori.Munguva yekushandira pamwe, isu tichashanda panzvimbo yefekitori, uye zvigadzirwa panguva yekutsvagisa nekusimudzira hazvizotengeswa kune kunze kwenyika.

Vale zvakare iri kushanda pamwe neItabira kambasi yeFederal University yeItajuba kudzidza nzira yekushandisa zvigadzirwa zvejecha pakugadzira.Kambani iyi inoronga kupa zvigadzirwa zvejecha kunzvimbo yeko yekugadzira.

Kuwedzera kucheneswa kwemigodhi

Pamusoro pekugadzira zvigadzirwa zveecological, Vale akatorawo mamwe matanho ekudzikisa miswe uye kuita kuti zvicherwa zvirambe zviripo.Kambani iyi yakazvipira kuvandudza tekinoroji yekugadzira yakaoma iyo isingade mvura.Parizvino, inenge 70% yezvigadzirwa zvesimbi zveVale zvinogadzirwa kuburikidza nekuoma kwekugadzirisa, uye chikamu ichi chicharamba chisina kuchinjwa kunyange mushure mokunge simba rekugadzira gore negore rawedzerwa kusvika mamiriyoni mazana mana ematani uye mapurogiramu matsva anoiswa mukushanda.Muna 2015, ore yesimbi inogadzirwa neyakaoma kugadzirisa chete yakaverengera 40% yehuwandu hwakabuda.

Kunyangwe kugadzirwa kwakaoma kunogona kushandiswa kune hukama nehutano hwesimbi inocherwa.Iyo iron ore muCarajás ine yakakwira simbi yemukati (inopfuura 65%), uye maitiro ekugadzirisa anongoda kupwanywa uye kuongororwa zvinoenderana nekukura kwechikamu.

Avhareji yesimbi yedzimwe nzvimbo dzemigodhi muMinas Gerais i40%.Nzira yekurapa yechinyakare ndeyekuwedzera iron yemukati meore nekuwedzera mvura kune beneficiation.Mazhinji emashure anokonzerwa akaturikidzana mumadhamu kana makomba.Vale yakashandisa imwe tekinoroji yekubatsira yakaderera-giredhi iron ore, iyo yakaoma magineti kupatsanurwa kwefine ore (FDMS) tekinoroji.Iyo magineti yekuparadzanisa maitiro esimbi ore haidi mvura, saka hapana chikonzero chekushandisa madhamu ekumisa.

Iyo yakaoma magineti yekuparadzanisa tekinoroji yeakanaka ore yakagadzirwa muBrazil neNewSteel, iyo yakawanikwa naVale muna 2018, uye yakashandiswa muchirimwa chekutyaira muMinas Gerais.Chigadzirwa chekutanga chekutengesa chichashandiswa munzvimbo yekushanda yeVargem Grande muna 2023. Chigadzirwa chacho chichave nekugadzirwa kwegore negore kwematani emamiriyoni e1.5 uye mari yose yeUS $ 150 mamiriyoni.

Imwe tekinoroji inogona kuderedza kudiwa kwemadhamu ekutamisa madhamu ndeyekusefa maswe nekuachengeta mumirwi yakaoma.Mushure mekunge simbi yegore yekugadzirwa kwesimbi yasvika mamiriyoni mazana mana ematani, mazhinji emamiriyoni makumi matanhatu ematani (anoverengera 15% yehuwandu hwekugadzira huwandu) achashandisa tekinoroji iyi kusefa nekuchengetedza miswe.Vale yakavhura tailings filtration plant munzvimbo yeGreat Varzhin migodhi, uye inoronga kuvhura mamwe matatu matatu ekusefa zvidyarwa muchikamu chekutanga che2022, imwe yacho iri munzvimbo yemugodhi weBrucutu uye mamwe maviri ari munzvimbo yeItabira Mining. .Mushure meizvozvo, ore yesimbi inogadzirwa neyechinyakare wet beficiation process inongoverengera gumi neshanu muzana yehuwandu hwekugadzira, uye machira anogadzirwa anozochengetwa mumadhamu emarara kana akavharwa makomba emigodhi.