M'gawo la mafakitale otentha kwambiri, magwiridwe antchito a zida zoyatsira ng'anjo zimakhudza mwachindunji kupanga bwino komanso mtundu wazinthu. Monga woimira zipangizo zogwiritsira ntchito kwambiri zowonongeka, njerwa za magnesia-aluminium spinel, ndi zinthu zake zabwino kwambiri, zakhala chisankho chabwino kwa mafakitale monga zitsulo, magalasi, ndi simenti kuti athetse kukokoloka kwa kutentha kwakukulu ndi kukulitsa moyo wa zipangizo, kupereka chithandizo chodalirika cha mafakitale okwera kutentha.
Kutsogolera Makampani Ndi Kuchita Mwapadera
Magnesia-aluminium spinel njerwa amapangidwa kuchokera ku magnesia ndi aluminium oxide kudzera mwapadera. Mapangidwe awo apadera a kristalo amawapatsa mwayi wochita bwino kwambiri. Njerwazi zimasonyeza kupirira kwapamwamba kwambiri, zokhoza kupirira kutentha kwambiri mpaka 1800°C. Ngakhale m'malo otentha kwambiri, amakhalabe ndi mphamvu zokhazikika komanso zamakemikolo, zomwe zimalepheretsa kuwononga ng'anjo chifukwa cha kutentha kwambiri.
Thermal shock resistance ndi chinthu chodabwitsa cha njerwa za magnesia-aluminium spinel. Panthawi yotentha komanso kuziziritsa kwa ma kilns, zida wamba zowotcha zimatha kusweka komanso kuphulika chifukwa cha kupsinjika kwamafuta. Komabe, chifukwa chocheperako pakukulitsa kwamafuta komanso kulimba kwabwino, njerwa za magnesia-alumina spinel zimatha kuchepetsa kupsinjika kwa kutentha, kuchepetsa kwambiri chiwopsezo cha kuwonongeka kwamafuta, kukulitsa moyo wautumiki, ndikuchepetsa nthawi yothira ng'anjo yokonza.
Njerwa za Magnesia-aluminium spinel zimagwiranso ntchito bwino pakuteteza kukokoloka kwa mankhwala. Amakhala ndi kukana kwambiri kwa alkaline ndi acidic slag, komanso mpweya wotentha kwambiri, kuteteza bwino kulowa kwa zinthu zovulaza ndikuteteza chitetezo chamapangidwe amoto. Kaya m'malo amchere kwambiri osungunula zitsulo kapena m'malo otentha kwambiri a asidi opangidwa ndi magalasi, amatha kukwaniritsa ntchito zawo zoteteza.
Kugwiritsa Ntchito Mwakuya M'mafakitale Angapo
M'makampani azitsulo, njerwa za magnesia-alumina spinel zimagwiritsidwa ntchito kwambiri m'madera akuluakulu otembenuza, ladles, ndi tundishes. Pa converter steelmaking, amatha kupirira scouring ndi kukokoloka kwa mkulu-kutentha chitsulo chosungunuka ndi slag, kuonetsetsa kukhulupirika kwa akalowa Converter. Akagwiritsidwa ntchito mu ladles ndi tundishes, amatha kuchepetsa momwe chitsulo chosungunula chimayendera ndi zipangizo zoyanjanitsira, kuyeretsa chitsulo chosungunula, ndikuwonjezera khalidwe lachitsulo. Pambuyo pa bizinesi yayikulu yachitsulo yomwe idatengera njerwa za magnesia-aluminium spinel, moyo wautumiki wa ma ladles ake udakwera kuchokera pakutentha kwapakati pa 60 mpaka kutentha kwa 120, kuchepetsa kwambiri ndalama zopangira.
M'makampani opanga magalasi, njerwa za magnesia-alumina spinel ndizomwe zimagwiritsidwa ntchito pazinthu zazikulu zamoto wagalasi. Mu malo otentha ndi regenerators ng'anjo kusungunuka magalasi, angathe kupirira kukokoloka kwa mkulu-kutentha galasi kusungunuka ndi scouring wa mkulu-kutentha mpweya, kukhalabe structural bata ng'anjo, kuchepetsa ng'anjo yokonza pafupipafupi, ndi kuwongolera kupitiriza ndi bata la kupanga magalasi. Mukamagwiritsa ntchito njerwa za magnesia-alumina spinel, kuwongolera kowotchera magalasi kumatha kukulitsidwa ndi zaka 2 - 3, kupititsa patsogolo phindu lazachuma lamakampani.
Popanga simenti, malo otenthetsera kwambiri a ng'anjo zozungulira amaika zofunikira kwambiri pazinthu zowumitsa. Ndi kukana kwawo kutentha kwambiri, kukana kwa abrasion, komanso kukhazikika kwa mankhwala, njerwa za magnesia-alumina spinel zimagwira ntchito yofunika kwambiri m'malo osinthika ndi malo oyaka moto a ng'anjo zozungulira, kuwonetsetsa kuti ng'anjo yowotcherayo imagwira ntchito mokhazikika komanso yolemetsa kwambiri ndikuthandizira kukulitsa kupanga simenti ndi kuwongolera bwino.
Katswiri Wogula Buku
Posankha njerwa za magnesia-alumina spinel, mfundo zazikuluzikulu zotsatirazi ziyenera kutsindika: Choyamba, tcherani khutu ku mankhwala ndi mchere wa zipangizo. Magnesia apamwamba kwambiri ndi aluminium oxide zopangira zimatha kuonetsetsa kuti njerwa zikuyenda bwino. Chachiwiri, yang'anani kwambiri pazomwe zimawonetsa momwe zinthu zimagwirira ntchito, monga kuchuluka kwachulukidwe, porosity yowoneka bwino, komanso mphamvu yakuphwanyira kuzizira kutentha. Zizindikirozi zimasonyeza mwachindunji ubwino ndi kulimba kwa njerwa. Chachitatu, fufuzani ndondomeko yopangira ndi kuwongolera khalidwe la ogulitsa. Sankhani ogulitsa omwe ali ndi zida zapamwamba zopangira, njira zowunikira kwathunthu, komanso luso lamakampani olemera kuti muwonetsetse kuti zogulitsa zili zodalirika. Kuonjezera apo, malingana ndi zochitika zenizeni zogwirira ntchito, kulondola kwazithunzi ndi kusintha kwa mawonekedwe a njerwa kumafunikanso kuganiziridwa kuti zitsimikizidwe kuti zomangamanga ndi kukhazikitsa bwino.
Ndi ntchito zawo zabwino kwambiri komanso ntchito zambiri, njerwa za magnesia-aluminium spinel zakhala zida zofunikira kwambiri zokanira m'mafakitale otentha kwambiri. Kaya ndikuwongolera kupanga bwino, kuchepetsa mtengo, kapena kuwonetsetsa kuti zinthu zili bwino, zitha kupereka mayankho odalirika kumabizinesi. Lumikizanani nafe tsopano kuti mudziwe zambiri zamalonda ndi ntchito zosinthidwa makonda, ndipo tiloleni titetezere kutentha kwanu kwamafakitale!
Nthawi yotumiza: Jun-23-2025
