Izitini ze-Magnesia Carbon: Isixazululo Esibalulekile Sokuxosha Ama-Ladle Ensimbi

Embonini yokwenza insimbi, i-ladle yensimbi iyisitsha esibalulekile esithwala, sibambe, futhi siphathe insimbi encibilikisiwe phakathi kwezinqubo ezahlukene zokukhiqiza. Ukusebenza kwayo kuthinta ngqo ikhwalithi yensimbi, ukusebenza kahle kokukhiqiza, kanye nezindleko zokusebenza. Kodwa-ke, insimbi encibilikisiwe ifinyelela amazinga okushisa aphezulu afinyelela ku-1,600°C noma ngaphezulu, futhi isebenzisana nama-slag anamandla, ukuguguleka komshini, kanye nokushaqeka kokushisa—okubeka izinselele ezinkulu ezintweni eziphikisayo ezimboze i-ladle yensimbi. Yilapho-keizitini ze-magnesium carbon(izitini ze-MgO-C) zivelele njengesixazululo sokugcina, ziletha ukuqina okungenakuqhathaniswa kanye nokuthembeka kokusebenza kwezitsha zensimbi.​

Kungani Izitini Ze-Magnesium Carbon Zibalulekile Ezindizeni Zensimbi​

Izitsha zensimbi zidinga izinto ezimelana nezimo ezimbi kakhulu ngaphandle kokubeka engcupheni ukusebenza. Izitsha zendabuko ezimelana nezimo zivame ukwehluleka ukuhlangabezana nalezi zidingo, okuholela ekushintsheni njalo, isikhathi sokungasebenzi komkhiqizo, kanye nezindleko ezikhulayo. Nokho, izitsha ze-magnesium carbon zihlanganisa amandla e-high-purity magnesia (MgO) kanye ne-graphite ukuze kuxazululwe yonke inselele ebalulekile yokufakwa kwezitsha zensimbi:

1. Ukumelana Okumangalisayo Nokushisa Okuphezulu

I-Magnesia, ingxenye eyinhloko yezitini ze-MgO-C, inezinga lokuncibilika eliphakeme kakhulu elingaba ngu-2,800°C—lidlula kakhulu izinga lokushisa eliphezulu lensimbi encibilikisiwe. Uma ihlanganiswa ne-graphite (into enokuqina okuhle kokushisa), izitini ze-magnesium carbon zigcina ubuqotho bazo besakhiwo ngisho nalapho zichayeka isikhathi eside ensimbini encibilikisiwe engu-1,600+°C. Lokhu kumelana kuvimbela ukuthamba kwezitini, ukuguqulwa, noma ukuncibilika, okuqinisekisa ukuthi i-ladle yensimbi ihlala iphephile futhi isebenza isikhathi eside.​

2. Ukumelana Okuphezulu Kokugqwala Kwe-Slag​

Insimbi encibilikisiwe ihambisana nama-slag—imikhiqizo ecebile ngama-oxide (njenge-SiO₂, i-Al₂O₃, ne-FeO) angcolisa kakhulu izinto ezingcolisa umoya. I-Magnesia ezitini ze-MgO-C isabela kancane kula ma-slag, yakha ungqimba oluqinile, olungangenisi amanzi ebusweni bezitini oluvimba ukungena kwe-slag okwengeziwe. Ngokungafani nezitini ze-alumina-silica, eziguguleka kalula yi-slag ene-acid noma eyisisekelo, izitini ze-magnesium carbon zigcina ubukhulu bazo, zinciphisa ingozi yokuvuza kwe-ladle.​

3. Ukumelana Okuhle Kakhulu Nokushisa Okushisayo​

Izitsha zensimbi zifudunyezwa ngokuphindaphindiwe (ukubamba insimbi encibilikisiwe) kanye nokuphola (ngesikhathi sokulungisa noma sokungenzi lutho)—inqubo ebangela ukushaqeka kokushisa. Uma izinto eziphikisayo zingakwazi ukumelana nokushintsha kwezinga lokushisa okusheshayo, zizoqhekeka, okuholela ekuhlulekeni kwangaphambi kwesikhathi. I-Graphite ezitini ze-magnesium carbon isebenza njenge-"buffer," imunca ukucindezeleka kokushisa futhi ivimbele ukwakheka kwemifantu. Lokhu kusho ukuthi izitini ze-MgO-C zingabekezelela amakhulu emijikelezo yokupholisa ukushisa ngaphandle kokulahlekelwa ukusebenza, zandise impilo yenkonzo yeladle yensimbi.​

4. Izindleko Zokuguguleka Nokunakekela Ezincishisiwe​

Ukuguguleka kwemishini okuvela ekuxubeni kwensimbi encibilikisiwe, ukunyakaza kweladle, kanye nokuklwebha i-slag kungenye inkinga enkulu ye-refractories yeladle yensimbi. Izitini ze-magnesium carbon zinamandla amakhulu emishini kanye nobunzima, ngenxa yokuhlangana phakathi kwezinhlamvu ze-magnesia kanye ne-graphite. Lokhu kuqina kunciphisa ukuguguleka kwezitini, okuvumela iladle ukuthi isebenze isikhathi eside phakathi kokufakwa kabusha. Ezitshalweni zensimbi, lokhu kusho ukuthi isikhathi sokungasebenzi sincane, izindleko zabasebenzi eziphansi zokufaka esikhundleni se-refractory, kanye nezinhlelo zokukhiqiza ezihambisanayo.​

Ukusetshenziswa Okubalulekile Kwezitini Zekhabhoni Ze-Magnesium Ezindizeni Zensimbi​

Izitini ze-magnesium carbon aziyona ikhambi elifanelana nosayizi owodwa—zenzelwe izingxenye ezahlukene zendebe yensimbi ngokusekelwe emazingeni athile okucindezeleka:

Iphansi kanye nezindonga zeLadle:Izindonga ezingezansi nezingezansi ze-ladle zithintana ngqo isikhathi eside nensimbi encibilikisiwe kanye nama-slag. Lapha, izitini ze-magnesium carbon ezixinene kakhulu (ezinokuqukethwe kwe-graphite okungu-10-20%) zisetshenziselwa ukumelana nokugqwala nokuguguleka.​

Umugqa We-Ladle Slag:Umugqa we-slag uyindawo esengozini kakhulu, njengoba ubhekene nokuchayeka okuqhubekayo kuma-slag agqwalisayo kanye nokushaqeka kokushisa. Izitini ze-magnesium carbon zekhwalithi ephezulu (ezinokuqukethwe okuphezulu kwe-graphite kanye nama-antioxidants engeziwe njenge-Al noma i-Si) zisetshenziswa lapha ukuze kwandiswe isikhathi senkonzo.​

I-Ladle Nozzle kanye ne-Tap Hole:Lezi zindawo zidinga izitini ezinokushisa okuphezulu kanye nokumelana nokuguguleka ukuze kuqinisekiswe ukugeleza kwensimbi encibilikisiwe okubushelelezi. Izitini ezikhethekile ze-MgO-C ezine-magnesia ecolekile zisetshenziselwa ukuvimbela ukuvaleka nokwandisa isikhathi sokusetshenziswa kwe-nozzle.​

Izinzuzo Zezitshalo Zensimbi: Ngaphandle Kokuqina​

Ukukhetha izitini ze-magnesium carbon ze-linings zensimbi kuletha izinzuzo ezibonakalayo zebhizinisi kubakhiqizi bensimbi:

Ikhwalithi Yensimbi Ethuthukisiwe:Ngokuvimbela ukuguguleka okubangelwa ukuguguleka, izitini ze-MgO-C zinciphisa ingozi yezinhlayiya ezibangelwa ukuguguleka ezingcolisa insimbi encibilikisiwe—okuqinisekisa ukwakheka kwamakhemikhali okuhambisanayo kanye namaphutha ambalwa emikhiqizweni yensimbi esiqediwe.​

Ukonga Amandla:Ukushisa okuphezulu kwe-graphite ezitini ze-MgO-C kusiza ukugcina ukushisa endebeni, kunciphisa isidingo sokufudumeza kabusha insimbi encibilikisiwe. Lokhu kunciphisa ukusetshenziswa kukaphethiloli kanye nokukhishwa kwekhabhoni.​
Impilo Ende Yesevisi Yesitsha: Ngokwesilinganiso, izinti zezitini ze-magnesium carbon zihlala isikhathi eside ngokuphindwe kabili kuya kathathu kunezinti zendabuko ezingaphikisi. Ngesitsha sensimbi esivamile, lokhu kusho ukuphinda uthambe kanye kuphela ezinyangeni ezingu-6-12, uma kuqhathaniswa nezikhathi ezingu-2-3 ngonyaka nezinye izinto.

Khetha Izitini Zekhabhoni Ze-Magnesium Ezisezingeni Eliphezulu Zezitsha Zakho Zensimbi​

Akuzona zonke izitini ze-magnesium carbon ezidalwe zilingana. Ukuze uthuthukise ukusebenza, funa imikhiqizo ene:

I-magnesia ehlanzekile kakhulu (okuqukethwe okungu-95%+ kwe-MgO) ukuqinisekisa ukumelana nokugqwala.

I-graphite esezingeni eliphezulu (okuqukethwe komlotha okuphansi) ukuze kube nokumelana okungcono nokushaqeka kokushisa.

Izinto ezithuthukisa ukubopha kanye nama-antioxidants ukuthuthukisa amandla ezitini nokuvimbela ukubola kwe-graphite.

At I-Shandong Robert Refractory, singochwepheshe ekukhiqizeni izitini ze-magnesium carbon zekhwalithi ephezulu ezenzelwe ukusetshenziswa kwezitsha zensimbi. Imikhiqizo yethu ilawulwa ngokuqinile ikhwalithi—kusukela ekukhethweni kwezinto zokusetshenziswa kuya ekuhlolweni kokugcina—ukuqinisekisa ukuthi ihlangabezana nezindinganiso eziqinile zokwenza insimbi. Kungakhathaliseki ukuthi usebenzisa umshini wokugaya insimbi omncane noma isitshalo esikhulu esihlanganisiwe, singakunikeza izixazululo ezenziwe ngokwezifiso zokunciphisa izindleko zakho nokukhulisa umkhiqizo.​

Xhumana Nathi Namuhla​

Ukulungele ukuthuthukisa izithasiselo zakho zensimbi ngezitini ze-magnesium carbon? Xhumana nethimba lethu lochwepheshe bezinto ezithasiselo ukuze uxoxe ngezidingo zakho, uthole isilinganiso sakho, noma ufunde kabanzi mayelana nokuthi izitini ze-MgO-C zingayishintsha kanjani inqubo yakho yokwenza insimbi.