Uma amadiphozithi ensimbi ekhishwa emhlabathini. Kumele zicutshungulwe ukuze kwandiswe i-iron futhi kwehlise ukugcwala kwamaminerali e-ganggue. Le nqubo yaziwa ngokuthi i-beneficiation. Kuye ngohlobo lwemishini yokucubungula, inqubo yokuzuza kwensimbi ingathatha izinyathelo eziningi, noma kungathatha ezimbili nje. Ngezisetshenziswa ze-ST & ubuchwepheshe (STET) isihlukanisi se-triboelectric, ungathola umkhiqizo wekhwalithi ephezulu ngesikhathi esincane, ngenani eliphansi.
Kunezinhlobo ezimbalwa ezahlukene zemishini yobuchwepheshe bokuhlukanisa engasetshenziswa ukukhiqiza insimbi yensimbi ephezulu. Ngohlobo ngalunye lwemishini, inqubo iqala ngokuchotshozwa nokugaya. Khona-ke ingalandelwa ngokuhlukana futhi ekugcineni ngokukhipha amanzi. Each of these steps is necessary for these processes and can cause the process to take longer and cost more.
Ukuze uhlukanise kahle izinto ezahlukene ezitholakala kwidiphozi yensimbi, kumele kuqala igaywe ibe yimpushana emahhadla noma ecolekileyo. Lokhu kuvumela izakhi ezahlukene ukuba zikhululwe komunye nomunye futhi ngaleyo ndlela kube lula ukuhlukana. Inqubo yokuchoboza nokugaya ingenzeka izikhathi eziningi futhi yenziwa ngezindlela eziningi. The final objective is to create a fine powder that can be separated in the next steps.
Ukuhlukana yilapho izinhlayiya zensimbi zihlukaniswa nezinye izinhlayiya ezingatholakala kumpushana. Lezi ezinye izinhlayiya/amaminerali ziyasuswa ukuze kuqinisekiswe ukuthi idiphozi yenhlawulo yensimbi ifinyelela engqikithini yensimbi ethile. Kunezinhlobo eziningi ezahlukene zokuhlukanisa—ukuhlukaniswa kwamandla adonsela phansi, ukuhlukana kazibuthe, ukuhlukaniswa kwe-flotation, nezihlukanisi zosayizi. Lezi zindlela zokuhlukanisa zingasetshenziswa ngokuhlanganyela ukuze kwakhiwe umkhiqizo wekhwalithi ephezulu.
Izindlela eziningi zokuhlukanisa ezijwayelekile zidinga ukusetshenziswa kwamanzi ukuze kusebenze kahle. Uma zonke izinyathelo seziqediwe, umphumela owumphumela uyi-slushy, ukuhambisana kwe-slurry. Ukuze uyiguqule ibe ngama-pellets, okuphumayo kufanele kuncishiswe amanzi. The dewatering process can be done through vacuum filters or pressure filters.
Ngokuphambene nenqubo evamile yokuhlukanisa insimbi ecolekileyo, inqubo yokuhlukanisa i-triboelectric ishesha kakhulu futhi kulula. Insimbi yensimbi ihamba ngezinyathelo ezimbili, inqubo yokugaya, kanye nenqubo yokuhlukanisa. Because this iron ore beneficiation is water-free there is no dewatering needed.
Amadiphozithi ensimbi adlula kunqubo efanayo yokugaya/yokuchotshozwa njengenqubo evamile. The objective is to create a fine output that can be separated in the next stage.
Kulesi sinyathelo, izinhlayiya ezinhle eziwumphumela zifakwa kusihlukanisi sebhande le-triboelectric. Idiphozi yensimbi bese idlulela ku- izici ezibalulekile zenqubo yokuhlukanisa i-electrostatic. Ukushajwa kwezinhlayiya, ukuhlukaniswa kwezinhlayiya, kanye nokuhlukaniswa kwamandla adonsela phansi kwezinhlayiya. Konke lokhu kwenziwa ngomshini owodwa. Umphumela uba umkhiqizo owomile ngokuphelele olungele i-pelletization.
Njengoba ubona, inqubo STET idinga kancane kakhulu ukwelashwa kwangaphambili, inqubo yokwehlukana ishaya kamnandi, futhi asikho isidingo sokukhipha amanzi. Isihlukanisi se-STET siyindlela emisha yemishini yobuchwepheshe yokuhlukanisa ejwayelekile. Akukona nje kuphela ukuthi iyasebenza, kodwa yona kunciphisa ukungcola, yonga imali, and makes it easy to get permits.
Sihlinzeka ngemishini yesimanjemanje yokucubungula amaminerali kanye nemishini yokuhlukanisa i-electrostatic kumakhasimende ethu emhlabeni wonke. Sihlinzeka ngemishini yesimanjemanje yokucubungula amaminerali. Ufuna ukufunda okwengeziwe? Xhumana nathi namuhla!