Ukwelashwa nokusetshenziswa kwemfucuza ye-Metallurgical

Amabhizinisi ensimbi nensimbi ahlose ukusetshenziswa ngokugcwele kwemfucuza eqinile kanye nokungakhiphi komoya, futhi iningi lawo lenze inqubekelaphambili enkulu. Inhlanganisela yokuphatha okukhethekile okumaphakathi kanye nezinhlelo ezahlukahlukene zokuphatha nakho kuzuze imiphumela yokuqala. Njengamanje, zonke izinkampani zensimbi seziqede ngokuphelele ukwelashwa kanye nokugaywa kabusha kwezinsiza ezinensimbi kudoti oqinile wezimboni. Ukulandelana okuyisisekelo yilokhu: ukutholwa kwensiza yemfucuza eqinile → i-sintering → isithando somlilo esiqhumayo → ukwenza insimbi → ukuginqika kwensimbi, lokho okubizwa ngokuthi “imodeli enkulu yokugaywa kabusha”. Kodwa-ke, ukusetshenziswa kwayo kusesezingeni eliphansi, ukusebenza kahle okuphansi, ukusetshenziswa kwenani eliphansi, ukusetshenziswa kwezinga eliphansi, elibonakala ngezinzuzo ezingezona zezomnotho nezemvelo, njengokusetshenziswa kwesikali se-iron oxide, udaka lokuguqula. kanye nodaka lwegesi, ngakho luthuthukiswa ngokujula futhi Ucwaningo mayelana nokusetshenziswa kwenani eliphezulu ludinga olunye ucwaningo nentuthuko. Leli phepha lizochaza ukuthuthukiswa okujulile kwemfucuza yensimbi kusuka ezicini eziyisithupha.

1. Ukuqinisa izinga le-slag kanye nekhwalithi ye-steel slag flux slag

I-flux slag etholwe ngemuva kokuchoboza ukuhlukaniswa kazibuthe kwe-slag yensimbi isetshenziswe isitshalo se-sinter, futhi isilinganiso ngokuvamile sicishe sibe ngu-115%. Kodwa-ke, ukuxutshwa kwe-flux slag kuzothinta izinga kanye nekhwalithi ye-sinter, ikakhulukazi ngoba impahla yokumanzisa amanzi nokusebenza kwe-pellets ye-slag yensimbi kubi kakhulu kunaleyo ye-iron ore powder. Inani lesitshalo se-sinter lilinganiselwe noma limisiwe, ukuze ukusetshenziswa kwe-flux slag kanye nengcindezi yokuthumela ngaphandle Kwenyuke. Ngakho-ke, ucwaningo lokuhlola lokuqinisa imbudumbudu ye-sinter kanye ne-steel slag flux slag kufanele kuqiniswe, futhi inani elifanele le-steel slag flux slag kufanele kuxoxiswe ngalo ukuze kuqinisekiswe ukuthi isivinini se-sintering, amandla e-sinter, isivuno, i-coefficient yokusebenzisa kanye ne-sinter reductivity ihlangabezana izidingo.

2. Ukuthuthukiswa okuqhubekayo kwe-slag yensimbi ekukhiqizeni usimende

I-Slag yensimbi kufanele iqiniswe ngokwengeziwe ukuze kwenziwe ucwaningo lokuhlola ukukhiqizwa kanye nokuqinisekiswa kokukhiqizwa kwezitshalo zikasimende, futhi imingcele yokulawula inqubo efanele yokukhiqiza usimende we-steel slag kufanele ihlolwe ukuze kwandiswe inani lokufakwa kwe-steel slag.

3. Ukuthuthukiswa kokukhiqizwa kwe-steel slag powder

Ukusetshenziswa kwe-steel slag powder kusimende nakokhonkolo kuyindlela engcono kakhulu yokusebenzisa izinsiza zenani eliphezulu ze-steel slag e-China. I-slag yensimbi enendawo ethile engu-400m2 / kg ingashintsha i-10% ~ 30% kasimende ngenani elilinganayo, futhi ingasetshenziswa ngokuqondile kunjiniyela wokwakha ukhonkolo, ongathuthukisa amandla okhonkolo sekwephuzile, athuthukise ukumelana nokugqoka, ukumelana nesithwathwa, ukumelana nokugqwala kanye nezindleko. Iphansi ngo-30% kunosimende futhi inganciphisa izindleko zokwakha. Kuyinto impahla eluhlaza ukusebenza okusezingeni eliphezulu kanye high ukuqina ukhonkolo. Njengamanje, umkhiqizo wonyaka we-steel slag powder usufinyelele amathani ayizigidi ezingu-3, futhi imikhiqizo isetshenziselwa ukwakhiwa kobunjiniyela. Ekuthuthukisweni kokukhiqizwa kwe-steel slag powder, kuyadingeka ukuqinisa ukukhethwa kwemishini yokugaya kanye nokulawulwa kwenqubo yokugaya.

I-4. i-slag yensimbi yezinto zomgwaqo nezinto zokwakha

Okubalulekile ukuxazulula inkinga yokuzinza kwe-steel slag. Kuyadingeka ukuthuthukisa inqubo ekhona yokwelashwa kwe-hot slag, nokuqinisa ucwaningo lwezobuchwepheshe lwenqubo yokwelashwa kwe-steel slag hot slag kanye nemishini. Ucwaningo nokuthuthukiswa kokwelashwa kwe-steel slag hot slag kanye nezitini ze-hydraulic steel slag ezingashi ezithwala umthwalo e-Hunan's Handan Iron and Steel Co., Ltd. kuzuze imiphumela emihle. U-Agrwal G kanye nabanye base-Alfred University e-United States basebenzisa i-steel slag ukuze bakhiqize i-CaO-rich glass-ceramics ekwazi ukumelana nokugqwala nokugqwala kunengilazi evamile.

5. Ukusheshisa ukuthuthukiswa kanye nokusetshenziswa kodaka lwegesi

Ngemuva kokuthi igesi iphinde ikhethiwe, okuqukethwe kwekhabhoni odakeni lomsila kuphezulu ngokufinyelela ku-35%, futhi ikhabhoni esegesini igaywe kabusha ukuze ithathele indawo ye-anthracite esetshenziswe esithandweni somlilo. Impushana yekhabhoni ingaphinda igaywe kabusha kusetshenziswa inqubo entsha yokugaywa kabusha.

6. Yakha i-metallurgical dust sludge ukukhiqiza i-ejenti epholile kanye ne-slagging yokwenza insimbi

Ukusetshenziswa okuphelele kodaka lwesiguquli, umlotha wothuli, isikali se-iron oxide, njll. selokhu kwamukele umzila wenqubo "yokugaywa kabusha-ukucubungula-ukusetshenziswa kwe-sintering", futhi akuyona indlela ejulile nenenani eliphezulu yokusebenzisa izinsiza zemfucumfucu eqinile. Ukusetshenziswa kodaka lwe-metallurgical uthuli olufana nodaka lokuguqula ukukhiqiza izinto ezipholile kanye nama-slag-forming agents ahlangabezana nezidingo zokwenza insimbi, ukuze inqubo yokusebenzisa udaka lwe-metallurgical lusetshenziswe kabusha kusukela esikhathini esidlule “imfucumfucu-insimbi-yensimbi” enkulu. -scale recycling to "waste-steel" umjikelezo omncane. Ukusetshenziswa koguquko kwenza uhlelo lungabi namandla kakhulu, lungangcolisi, lungabizi kakhulu, futhi lube nenzuzo eyengeziwe.

7. Ukucindezela udoti we-metallurgical ube yinqubo yokugxiviza

Ngokuvamile, umshini wokugcwalisa i-high-pressure briquetting ungakhipha izinto zensimbi ezifana nezinsalela zensimbi, ama-shavings ensimbi, izinsimbi ezilahliwe, insimbi eyi-scrap, ithusi elilahliwe, izinsalela ze-aluminium, ama-aluminium shavings, amagobolondo emoto ahlakaziwe, nezigubhu zikawoyela ezilahlwayo zibe yizimo ezihlukahlukene ezifana nama-cubes kanye amasilinda. Inkokhelo efanelekile. Kulula ukugcina, ukuthutha nokugaywa kabusha.