Kwicandelo loshishino lobushushu obuphezulu, ukusebenza kwezixhobo ze-kiln lining kuchaphazela ngokuthe ngqo ukusebenza kwemveliso kunye nomgangatho wemveliso. Njengommeli wezinto eziphezulu zokusebenza, izitena ze-magnesia-alumina spinel, kunye neempawu zazo ezibanzi ezibanzi, ziye zaba yinto efanelekileyo kumashishini afana nentsimbi, iglasi, kunye nesamente ukuxhathisa ukukhukuliseka kobushushu obuphezulu kunye nokwandisa ixesha lokuphila kwezixhobo, ukubonelela ngenkxaso ethembekileyo kwimveliso yamashishini aphezulu.
Ukukhokela uShishino ngoMsebenzi oQhelekileyo
Izitena ze-Magnesia-alumina spinel zenziwe kwi-magnesia kunye ne-aluminium oxide ngokusebenzisa iinkqubo ezikhethekileyo. Ubume babo obukhethekileyo bekristale bubanika iingenelo zokusebenza ezinamandla. Ezi zitena zibonisa ukuxhathisa okubalaseleyo kobushushu obuphezulu, ezikwaziyo ukumelana namaqondo obushushu agqithileyo ukuya kuthi ga kwi-1800°C. Kwanakwiindawo ezihlala ixesha elide zobushushu obuphezulu, zigcina iipropati ezizinzileyo zomzimba kunye neekhemikhali, zikhusela ngokufanelekileyo umonakalo kwi-linings ye-kiln ebangelwa ukushisa okuphezulu.
Ukumelana nokutshatyalaliswa kwe-thermal yinto ephawulekayo yezitena ze-magnesia-alumina spinel. Ngexesha lokufudumeza rhoqo kunye nokupholisa imijikelezo yee-kilns, izinto eziqhelekileyo eziphikisayo zivame ukuqhekeka kunye nokusabalalisa ngenxa yoxinzelelo lwe-thermal. Nangona kunjalo, kunye ne-coefficient ephantsi yokwandiswa kwe-thermal kunye nokuqina okulungileyo, izitena ze-magnesia-alumina spinel zinokunciphisa ngokufanelekileyo iimpembelelo zoxinzelelo lwe-thermal, ukunciphisa kakhulu umngcipheko wokutshatyalaliswa kokutshatyalaliswa kwe-thermal, ukwandisa ubomi benkonzo, kunye nokunciphisa ixesha lokunciphisa iziko lokugcinwa.
Izitena ze-Magnesia-alumina spinel nazo zenza kakuhle kakhulu ekukhuseleni ukukhukuliseka kweekhemikhali. Banokuchasana okugqwesileyo kwi-alkaline kunye ne-acidic slag, kunye neegesi eziphezulu zokushisa, ukuthintela ngokufanelekileyo ukungena kwezinto ezinobungozi kunye nokukhusela ukhuseleko lwesakhiwo se-kilns. Nokuba ikwimeko-bume yealkaline yokunyibilika kwentsimbi okanye umoya oneasidi ephezulu yokuvelisa iglasi, banokuzalisekisa ngokuzinzileyo imisebenzi yabo yokukhusela.
Usetyenziso Olunzulu KuMashishini amaninzi
Kwishishini lensimbi, izitena ze-magnesia-alumina spinel zisetyenziswa ngokubanzi kwiindawo eziphambili zabaguquli, i-ladles, kunye ne-tundishes. Ngexesha lokuguqula i-steelmaking, banokumelana nokuhlanjululwa kunye nokukhukuliseka kwetsimbi etyhidiweyo ephezulu yokushisa kunye ne-slag, ukuqinisekisa ukunyaniseka kwe-converter lining. Xa zisetyenziselwa iileyile kunye ne-tundishes, zinokunciphisa ngokufanelekileyo ukusabela phakathi kwentsimbi etyhidiweyo kunye nempahla ye-lining, ukuphucula ukucoceka kwentsimbi etyhidiweyo, kunye nokuphucula umgangatho wensimbi. Emva kokuba ishishini elikhulu lensimbi lamkele izitena ze-magnesia-alumina spinel, ubomi benkonzo yeeladi zayo bunyuke ukusuka kumyinge we-60 ukushisa ukuya kwi-120 heats, ukunciphisa kakhulu iindleko zokuvelisa.
Kwishishini lokwenziwa kweglasi, izitena ze-magnesia-alumina spinel zizinto ezikhethiweyo zeendawo eziphambili zeeglasi zeglasi. Kwiindawo ezishushu kunye neeregenerators zeglasi ezinyibilikayo zeglasi, ziyakwazi ukumelana nokukhukuliseka kweglasi yobushushu obuphezulu obunyibilikayo kunye nokuhlanjululwa kweegesi zobushushu obuphezulu, ukugcina uzinzo lwesakhiwo se-oven, ukunciphisa ukuphindaphinda kokugcinwa kwe-kiln, kunye nokuphucula ukuqhubeka kunye nokuzinza kwemveliso yeglasi. Emva kokusebenzisa izitena ze-magnesia-alumina spinel, umjikelezo wokulungiswa kweeglasi zeglasi unokwandiswa nge-2 - 3 iminyaka, ngokufanelekileyo ukunyusa inzuzo yezoqoqosho kumashishini.
Ngexesha lemveliso yesamente, indawo yobushushu obuphezulu beekhilni ezijikelezayo ibeka iimfuno ezingqongqo kwizinto eziphikisayo. Ngokumelana nobushushu obuphezulu, ukuxhathisa kwe-abrasion, kunye nokuzinza okulungileyo kweekhemikhali, izitena ze-magnesia-alumina spinel zidlala indima ebalulekileyo kwindawo yenguqu kunye nommandla ovuthayo we-rotary kilns, ukuqinisekisa ukusebenza okuzinzileyo kwe-oven body phantsi kobushushu obuphezulu kunye neemeko zomthwalo ophezulu kunye negalelo ekwandeni kwemveliso yesamente kunye nokuphucula umgangatho.
Isikhokelo sokuThenga soBuchule
Xa ukhetha izitena ze-magnesia-alumina spinel, ezi zilandelayo zibalulekileyo kufuneka zigxininiswe: Okokuqala, qaphela ukubunjwa kweekhemikhali kunye nokubunjwa kwamaminerali kwizinto. I-magnesia ephezulu ecocekileyo kunye ne-aluminium oxide izinto eziluhlaza zinokuqinisekisa ukusebenza okuzinzile kwezitena. Okwesibini, kugxininise kwizalathisi zokusebenza komzimba zeemveliso, ezinje ngoxinaniso oluninzi, i-porosity ebonakalayo, kunye namandla okutyumza okubandayo kwiqondo lobushushu begumbi. Ezi zalathi zibonakalisa ngokuthe ngqo umgangatho kunye nokuqina kwezitena. Okwesithathu, ukuvavanya inkqubo yokuvelisa kunye nenkqubo yokulawula umgangatho wababoneleli. Khetha ababoneleli ngezixhobo zokuvelisa eziphucukileyo, iinkqubo zokuhlola ezipheleleyo, kunye namava oshishino olutyebileyo ukuqinisekisa umgangatho wemveliso othembekileyo. Ukongezelela, ngokwemiqathango ethile yokusebenza, ukuchaneka kwe-dimensional kunye nokulungelelaniswa kwemilo yezitena nazo kufuneka ziqwalaselwe ukuze kuqinisekiswe ukwakhiwa kunye nokufakwa kakuhle.
Ngokusebenza kwabo okugqwesileyo kunye nokusetyenziswa okubanzi, izitena ze-magnesia-alumina spinel ziye zaba yinto efunekayo yokumelana nomgangatho ophezulu kumashishini aphezulu obushushu. Nokuba kukuphucula ukusebenza kakuhle kwemveliso, ukunciphisa iindleko, okanye ukuqinisekisa umgangatho wemveliso, banokubonelela ngezisombululo ezithembekileyo kumashishini. Qhagamshelana nathi ngoku ukuze ufumane ulwazi lwemveliso yobuchwephesha kunye neenkonzo ezilungiselelweyo, kwaye masikhusele imveliso yakho yemveliso yobushushu obuphezulu!
Ixesha lokuposa: Jun-23-2025
