Tšebeliso e pharaletseng ea mehatla ke lentsoe le chesang tšimong ea merafo lilemong tsa morao tjena, 'me lipatlisiso tse mabapi le tšebeliso e pharaletseng ea mehatla ea khauta le tsona li entsoe.Ho utloisisoa hore tlhahiso ea mehatla ea merafo ea khauta naheng ea heso e fihlile ho lithane tse fetang limilione tse likete tse 1.5, empa sekhahla sa ts'ebeliso e felletseng se ka tlase ho 20%. Hajoale, tsela e nepahetseng ka ho fetesisa ea ho hlokomela ho lahla ha khauta ho se nang litšila le ho se kotsi. mehatla ea merafo e kenyelletsa mekhoa e 'meli: ho tlatsa ka tlas'a lefatše le ho sebelisoa ha lisebelisoa.Tsela e tloaelehileng ea ho tlatsa merafo ea khauta ke ho tlatsa mehatla e mahoashe ka selibeng, ha mehatla e metle e bokelletsoeng ka letamong la mehatla.Hobane dikahare tsa kgauta hangata ore e tlase, molemong oa ho eketsa ho nkuoa ha lisebelisoa tsa khauta, hangata hoa hlokahala ho etsa ts'ebetso ea ho sila.Ka hona, mehatla e metle e na le lintho tse ngata, ha likhahla tse mahoashe li fokotsehile, 'me li-tailings tse mahoashe feela li tlatsitsoe ka tlas'a lefatše., ho ke ke ha khoneha ho fokotsa litšila tse tiileng le ho fokotsa matla a polokelo ea matangoana a tailings.Ho boloka matamo a tailings ho ntse ho hloka mobu o mongata mme ho senya tikoloho.Ho lahloa ha mehatla ea khauta ho fetohile lebaka le leholo le thibelang tsoelo-pele e tsitsitseng ea moruo ea merafo ea khauta.
Ka la 10 Hlakola, 2022, Lekala la Indasteri le Theknoloji ea Boitsebiso, Komisi ea Naha ea Ntšetso-pele le Liphetoho, Lekala la Saense le Theknoloji, Lekala la Lichelete, Lekala la Lihloliloeng, Lekala la Ecology le Tikoloho, Lekala la Khoebo. , le Tsamaiso ea Naha ea Lekhetho ka kopanelo e fane ka “Taba ea Khatiso le Kabo e Potlakisang Khothatso ea Mehloli ea Indasteri”."Tsebiso mabapi le Moralo oa Ts'ebetsong bakeng sa Tšebeliso e Feletseng" e hloka hore ka 2025, matla a tlhahiso ea litšila tse tiileng liindastering liindastering tse ka sehloohong tse kang tšepe le tšepe, litšepe tse se nang ferrous le liindasteri tsa lik'hemik'hale naheng ea heso e tla fokotseha, boemo bo pharaletseng ba tšebeliso. ea matlakala a mangata a tiileng a liindasteri a tla ntlafatsoa haholo, indasteri ea lisebelisoa tse nchafalitsoeng e tla tsoela pele ho ntlafala ka bophelo bo botle, 'me lisebelisoa tsa indasteri li tla sebelisoa ka botlalo.Sebetsa se ntlafalitsoe haholo, 'me sekhahla se felletseng sa ts'ebeliso ea litšila tse ngata tsa indasteri se tla fihla ho 57%.
Sino-German Key Laboratory ea Magnetoelectricity le Intelligent Mineral Processing ea Huate Company e etsa liteko tse ngata tsa melemo ho mehatla ea khauta sebakeng sa Yantai.Likarolo tse ka sehloohong tsa liminerale tsa mehatla ea khauta ke liminerale tsa gangue tse kang quartz, feldspar le calcite, le tšepe e nyane ea mochini, tšepe ea makenete, oxide ea tšepe, titanium oxide, silicate ea tšepe, sulfide ea tšepe le litšila tse ling. mehatla ea khauta ka kakaretso ke 200 mesh 50-70%, boholo ba phatsa e batla e tšoana, 'me e na le seretse se senyenyane se setle.Lintho tse ka sehloohong tse sa hloekang tsa Fe2O3 ke 1-3%, litaba tsa TiO2 ke 0.1-0.3%, litaba tsa CaO ke 0.12-1.0%, 'me bosoeu ba mehatla ea khauta ke 5-20%.Ho na le phapang e itseng ea ho hlophisoa ha mehatla e hlahisoang ke li-concentrator tse fapaneng.Li-tailings tse ling li na le litaba tse phahameng tsa SiO2, kapa li na le spodumene, sericite, joalo-joalo Bongata ba tsona ke tsa mofuta oa feldspar-quartz oa mofuta oa pegmatite, o nang le boleng bo phahameng ba ho sebelisa hape.
Khamphani ea Huate e ile ea qapa "magnetic separation-gravity separation" e kopantseng molemo, 'me ea fumana tumello ea ho qaptjoa ka patent ka September 2020. Litaba tsa patent li bua ka "mokhoa o pharaletseng oa tšebeliso ea mehatla ea khauta e nang le khauta, tšepe le feldspar. Hajoale, ho feta ho feta lik'hamphani tse leshome tse kholo tsa indasteri li 'nile tsa etsoa Yantai, Shandong, e kholo ka ho fetisisa e ka sebetsanang le lithane tse 8,000 tsa mehatla ea khauta ka letsatsi. Ts'ebetsong ena, lisebelisoa tse tsoetseng pele tsa melemo tse kang sekirini se thothomelang, spiral chute, tafole e sisinyehang, drum magnetic separator. , poleiti e matla ea makenete e nang le matla a khoheli e sebelisoa ka kopanelo, selikalikoe se otlolohileng se phahameng sa gradient magnetic separator, le sepaarotha sa makenete sa slurry se sebelisoa hammoho.Ha ho ntse ho fumanoa lihlahisoa tsa boleng bo holimo tsa feldspar ho tloha mehatleng, lihlahisoa tsa bohlokoa tse kang magnetite, liminerale tse nang le khauta, lisebelisoa tse tala tsa samente le lisebelisoa tse tala tsa ho etsa litene li boetse li fumanoa ho lemoha tšebeliso e feletseng ea mehatla ea khauta le ho fumana ho lokolloa ho feletseng. - tsela e chitja.
Karohano ea karohano ea matla a khoheli e phahameng ea gradient le electromagnetic slurry high gradient magnetic separator li sebelisoa morerong oa mehatla ea khauta.
Nako ea poso: Mar-11-2022