Kwiplanti yokulungisa izimbiwa, inqanaba lokugaya yisekethe ebalulekileyo enotyalo-mali olukhulu kunye nokusetyenziswa kwamandla.Inqanaba lokusila lilawula inguquko yeenkozo ekuqukunjelweni kokusetyenzwa kwezimbiwa, okunefuthe elikhulu kwireyithi yokubuyisela kunye nesantya semveliso.Ke ngoko, ngumbuzo ogxile ekunciphiseni iindleko kunye nokuphucula izinga lemveliso phantsi komgangatho othile wokugaya.
Kukho iintlobo ezimbini zendlela yokugaya, ukugaya i-open-circuit grilling kunye ne-closed-circuit grinding.Ziziphi izinto ezikhethekileyo kwezi ndlela zimbini zokusila?Yeyiphi indlela yokugaya enokuqonda ukusetyenziswa okuphezulu kunye nokuphucula izinga lemveliso?Kwiziqendu ezilandelayo, siza kuphendula le mibuzo.
Iimpawu zeendlela ezimbini zokugaya
Ukuvula i-circuit ukugaya kukuba, ekusebenzeni kokugaya, izinto eziphathekayo zifakwe kwi-mill kwaye zikhutshwe emva kokugaya, ngokuthe ngqo kwi-mill elandelayo okanye inkqubo elandelayo.
Iingenelo zokuvula i-circuit grinding yinkqubo elula yokuhamba kunye neendleko eziphantsi zotyalo-mali.Ngelixa izinto ezingeloncedo zizinga lemveliso ephantsi kunye nokusetyenziswa kwamandla amakhulu.
Ukusila okuvaliweyo kukuba, kumsebenzi wokugaya, izinto eziphathekayo zifakwa kwi-mill ukuze zihlulwe emva kokusila, kwaye i-ore engafanelekanga ibuyiselwa kwi-mell ukuze iphinde igaywe, kwaye i-ore eqeqeshiwe ithunyelwa kwinqanaba elilandelayo.
Iinzuzo eziphambili zokuvala i-circuit-grinding yizinga eliphezulu lokutyumza, kwaye umgangatho wokuvelisa uphezulu.Ngexesha elifanayo, i-closed-circuit inezinga elikhulu lokuvelisa.Nangona kunjalo i-disadvantage kukuba ukuhamba kwemveliso ye-closed-circuit inzima kakhulu, kwaye ixabisa ngaphezu kokugaya okuvulekileyo.
Izinto ezingahambelaniyo ziphantsi ngokuphindaphindiweyo kwisigaba esivaliweyo sokugaya kuze kube yilapho i-particle efanelekayo ifikeleleke.Xa ukugaya, iiminerali ezininzi zinokuthuthelwa kwisixhobo sokugaya, ukwenzela ukuba amandla ebhola lebhola asetyenziswe kangangoko kunokwenzeka, ukuphucula ukusetyenziswa kokusetyenziswa kwezixhobo zokugaya, ukwenzela ukuba ukuveliswa kwezixhobo zokugaya kuphuculwe.
Isixhobo seendlela ezimbini zokusila
Ekukhetheni izixhobo zokugaya, i-mill yebhola ayinayo amandla okulawula ubungakanani be-particle.Kukho iinkozo ezifanelekileyo ezifanelekileyo kunye neenkozo ezinqabileyo ezingavumelekanga kwi-drainage ye-ore, engafanelekanga kwisixhobo esivulekileyo sokugaya.I-Rob Mill ichasene, ubukho bentsimbi phakathi kwebhloko eshinyeneyo buya kwaphuka kuqala, ukunyuka kweentonga zentsimbi njengenani legrile, imathiriyeli ecolekileyo inokudlula kwisithuba esiphakathi kweentonga zentsimbi.Ngoko ke, i-rod mill inamandla okulawula ubungakanani be-particle kwaye ingasetyenziselwa njengesixhobo sokugaya esivulekileyo.
Nangona i-ball mill ayinakho ukukwazi ukulawula ubukhulu be-particle ngokwayo, inokulawula ubungakanani be-particle ngoncedo lwezixhobo zokuhlela.Ilitye lokusila liya kukhupha intsimbi ekrwada kwisixhobo sokuhlela.Izinto ezifanelekileyo ezifanelekileyo zingena kwinqanaba elilandelayo ngomjikelo wokusila.Ngoko ke, i-closed-circuit grinding unqualified coarse material ingadlula kwi-mill ngamaxesha amaninzi, kufuneka ibe phantsi ukuya kwisayizi ye-particle efanelekayo ingakhutshwa ngezixhobo zokuhlela.Kukho phantse akukho mda kwizixhobo zokugaya ezinokuthi zikhethwe kwinqanaba elivaliweyo lokugaya.
Ukusetyenziswa kweendlela ezimbini zokusila
Ngokohlobo olwahlukileyo lweeminerali, iimpawu, kunye neemfuno ezahlukeneyo zokuqukuqela, iimfuno zokucolwa kokugaya ziyahluka.Ubume bezinto eziphathekayo kunye neengqungquthela ezahlukeneyo ezifikelela kwiqondo elifanelekileyo lokuhlukana nazo azifani.
Ekusikeni kweesekethe ezivaliweyo, izinto ezibuyiselwe kwizixhobo zokugaya ziphantse zifaneleke.Kuphela kancinane kwakhona ukugaya unokuba imveliso abaqeqeshiweyo, kunye nokwanda kwemathiriyeli yokusila, izinto ngokusebenzisa lokusila ngokukhawuleza, ixesha lokugaya lifinyele.Ngoko ke, ukugaya i-circuit evaliweyo kuneempawu zokuvelisa okuphezulu, iqondo lokukhanya lokutyhulwa ngokugqithisileyo, ukusabalalisa okulungileyo kunye nokusabalalisa okufanayo kobukhulu beqhekeza.Ngokubanzi, isityalo esijikelezayo kunye nesityalo sokwahlula imagnethi sisebenzisa inkqubo yokusila evaliweyo.
Ukugaya i-open-circuit grilling ifanelekile ukugaya okokuqala.Izinto ezikhutshwe kwelinye icandelo le-rod mill zingena kwezinye izixhobo zokusila kwaye emva koko zicolwe (zilungile).Ngale ndlela, icandelo lokuqala lokugaya intonga linomlinganiselo omncinci wokutyumza kunye nomthamo ophezulu wemveliso, kwaye inkqubo ilula.
Ukushwankathela, kunokubonwa ukuba ukukhethwa kwendlela yokugaya kuyinkimbinkimbi, ekufuneka iqwalaselwe kwiinkalo ezininzi ezifana nempahla yezinto eziphathekayo, iindleko zotyalo-mali kunye neenkqubo zobuchwepheshe.Kucetyiswa ukuba abanini-migodi babonisane nabavelisi bezixhobo zokusebenza abaneziqinisekiso zoyilo lomgodi ukuthintela ilahleko yezoqoqosho.
Ixesha lokuposa: Epreli-06-2020