Njengenye yezinsimbi zokuqala nezisetshenziswa kakhulu emhlabeni, i-iron ore iyinto ebalulekile yokusetshenziswa ekukhiqizweni kwensimbi nensimbi. Njengamanje, izinsizakusebenza ze-iron ore ziyaphela, zibonakala ngesilinganiso esiphezulu se-iron ore engenamafutha uma kuqhathaniswa ne-iron ecebile, i-iron ore ehlobene kakhulu, kanye nokwakheka kwe-iron okuyinkimbinkimbi. I-iron ivame ukukhishwa ku-iron ore yayo, eyaziwa ngokuthi i-hematite noma i-magnetite, ngenqubo ebizwa ngokuthi i-iron ore beneficiation. Izinyathelo ezithile ezihilelekile ekukhishweni kwensimbi kwezimboni zingahluka kuye ngohlobo lwe-iron kanye nemikhiqizo efiselekayo, kodwa inqubo evamile ivame ukuhilela izigaba ezilandelayo:
Ukumba
Amatshe ensimbi atholakala kuqala ngemisebenzi yokuhlola. Uma sekutholakale itshe eliqinile, itshe likhishwa emhlabathini kusetshenziswa amasu okumba njengomgodi ovulekile noma ukumba ngaphansi komhlaba. Lesi sigaba sokuqala sibalulekile njengoba sibeka isisekelo sezinqubo zokukhipha ezilandelayo.
Ukuchoboza Nokugaya
I-ore ekhishwe iyabe isichotshozwa ibe yizicucu ezincane ukuze kube lula ukuqhubeka nokucutshungulwa. Ukuchotshozwa kuvame ukwenziwa kusetshenziswa ama-jaw crushers noma ama-cone crushers, futhi ukugaya kwenziwa kusetshenziswa ama-autogenous grinding mills noma ama-ball mills. Le nqubo yehlisa i-ore ibe yimpuphu ecolekile, okwenza kube lula ukuyiphatha nokuyicubungula ezigabeni ezilandelayo.
Ukuhlukaniswa Kwamagnetic
I-iron ore ivame ukuba nokungcola noma amanye amaminerali okudingeka asuswe ngaphambi kokuba asetshenziswe ekukhiqizweni kwensimbi nensimbi. Ukuhlukaniswa kwamagnetic kuyindlela evamile esetshenziswa ukuhlukanisa amaminerali amagnetic kwalawo angewona amagnetic. Amamagnet aqinile, njenge-Huate magnet separator, asetshenziselwa ukuheha nokuhlukanisa izinhlayiya ze-iron ore ku-gangue (izinto ezingafuneki). Lesi sinyathelo sibalulekile ekuthuthukiseni ubumsulwa be-iron ore.
Inzuzo
Isinyathelo esilandelayo ukwenziwa ngcono kwe-ore, lapho umgomo uwukwandisa okuqukethwe kwensimbi ngokusebenzisa amasu ahlukahlukene. Le nqubo ingase ihilele ukugeza, ukuhlola, kanye nezindlela zokuhlukanisa amandla adonsela phansi ukuze kususwe ukungcola futhi kuthuthukiswe ikhwalithi ye-ore. Ukwenziwa ngcono kungafaka phakathi ukuntanta, lapho amakhemikhali engezwa khona ku-ore ukuze kwenziwe izinhlayiya zensimbi zintante futhi zihlukaniswe nezinye izinto.
Ukuhlikihla noma Ukuhlikihla
Uma i-ore isilungisiwe, kungadingeka ukuhlanganisa izinhlayiya ezincane zibe ezinkulu ukuze kucutshungulwe kahle. Ukugaya i-pellet kuhilela ukwakha ama-pellet amancane ayindilinga ngokuwagaya i-ore ngezithasiselo ezifana ne-limestone, i-bentonite, noma i-dolomite. Ngakolunye uhlangothi, ukugaya i-ore kuhilela ukushisa ama-ore fine kanye nama-fluxes kanye ne-coke breeze ukuze kwakhiwe i-semi-fused mass eyaziwa ngokuthi i-sinter. Lezi zinqubo zilungiselela i-ore isinyathelo sokugcina sokukhipha ngokuthuthukisa izakhiwo zayo zomzimba kanye nezici zokuphatha.
Ukuncibilikisa
Isinyathelo sokugcina enkambisweni yokukhipha ukuncibilikisa, lapho i-iron ore ishiswa khona esithandweni somlilo kanye ne-coke (uphethiloli we-carbonaceous) kanye ne-limestone (esebenza njengokushintshashintsha). Ukushisa okukhulu kuphula i-iron ibe yinsimbi encibilikisiwe, eqoqana phansi kwesithando somlilo, kanye ne-slag, entanta phezulu bese isuswa. Insimbi encibilikisiwe ibe isifakwa ezimweni ezahlukahlukene, njengezingcezu noma ama-billet, bese icutshungulwa ukuze kutholakale imikhiqizo yensimbi nensimbi oyifunayo.
Kubalulekile ukuqaphela ukuthi amadiphozithi ensimbi ahlukene kanye nezindawo zokucubungula zingase zibe nokwehluka ezinqubweni ezithile ezisetshenziswayo, kodwa izimiso zizonke zihlala zifana. Ukukhishwa kwensimbi ku-ore kuyinqubo eyinkimbinkimbi futhi enezinyathelo eziningi edinga ukuphathwa ngokucophelela kwezinsiza kanye nobuchwepheshe. Ukufakwa kwemishini ethuthukisiwe njenge-Huate magnet separator kuthuthukisa ukusebenza kahle kanye nekhwalithi yenqubo yokuhlukanisa, okuqinisekisa ukuthi umkhiqizo wokugcina uhlangabezana nezindinganiso ezidingekayo zokukhiqizwa kwensimbi nensimbi.
Isikhathi sokuthunyelwe: Julayi-08-2024