Izitini ze-Sillimanite: I-Powerhouse Ehlukahlukene Yezicelo Zezimboni

Ezimweni zezimboni lapho amazinga okushisa aphezulu, ukucindezela, nezinto zokugqoka eziyinselele, izixazululo ezinokwethenjelwa zibalulekile.Izitini zeSillimanitezigqame "njengehhashi lemboni," elinezici ezihlukile ezithuthukisa ukusebenza kahle, ukunciphisa izindleko, kanye nokuthuthukisa ikhwalithi yomkhiqizo kuyo yonke i-metallurgy, i-ceramics, kanye nokukhiqizwa kwezingilazi. Nakhu ukuthi kungani beyinketho ephezulu emhlabeni jikelele ...

1. Izakhiwo Eziyinhloko: Yini Enza Izitini Ze-Sillimanite Zibaluleke Kakhulu

Kususelwa ku-aluminosilicate mineral sillimanite, lezi zitini zinikeza izinzuzo ezintathu ezingenakunqotshwa:

I-Ultra-High Refractoriness:Njengoba izinga lokuncibilika lingaphezu kuka-1800°C, limelana nokushisa okwedlulele (okubalulekile ekuncibilikeni kwensimbi nokuncibilika kwengilazi, lapho izinga lokushisa lingaphezu kuka-1500°C) ngaphandle kokungqubuzana noma ukuwohloka.

Ukwandiswa Kokushisa Okuphansi:Izinga elingaphansi kuka-1% ku-1000°C livimbela ukuqhekeka kusukela ekushayweni okushisayo, liqinisekisa ukuqina ezindaweni zokupholisa okujikelezayo njengamaziko omlilo.

Ukumelana Okuphezulu:Aminyene futhi aqinile, amelana nokuhuzuka ezinsimbini ezincibilikisiwe/i-slag nokuguguleka kwamakhemikhali asuka kuma-asidi/ama-alkali—ukhiye wokucubungula amakhemikhali nokusansimbi.​

Lezi zici zishintsha izitini ze-sillimanite zisuka kokuthi "okumnandi ukuba nazo" ziye kokuthi "okufanele ube nakho" ukuze kusetshenziswe ngokugcwele.

2. I-Metallurgy: Ithuthukisa Ukukhiqizwa Kwensimbi Nensimbi

Imboni ye-metallurgical incike kakhulu ezitini ze-sillimanite zemishini ecindezelwa ukushisa:

I-Blast Furnace Linings:Ukwendlalela "indawo eshisayo" (1500-1600°C) yezithando zomlilo ezikhiqiza insimbi, zidlula izitini zomlilo ezivamile. Imboni yensimbi yase-India yabona ubude bokuphila kwesithando somlilo ngo-30% kanye nezindleko zokunakekela eziphansi ngo-25% ngemva kokushintsha.

Izindawo zokuhlala ezengeziwe e-Tundish & Ladle:Ukunciphisa ukungcoliswa kwensimbi nokwelula ukuphila kolayini kuze kufike ku-40% (ngokwe-steelmaker yaseYurophu), baqinisekisa ukubamba insimbi encibilikisiwe bushelelezi.

Imikhumbi ye-Desulfurization:Ukumelana kwabo ne-slag ecebile sulphur kugcina ukungaguquguquki, kusiza ukuhlangabezana nezindinganiso eziqinile zokuhlanzeka kwensimbi

Kwama-metallurgists, izitini ze-sillimanite ziyi-investimenti yamasu ekukhiqizeni

3. I-Ceramics: I-Boosting Tile, Sanitary Ware & Technical Ceramics

Ku-ceramics, izitini ze-sillimanite zisebenza izindima ezimbili ezibalulekile:

I-Kiln Linings:Ukugcina ukushisa okufanayo (kufika ku-1200 ° C) eziko lokudubula, ukwanda kwawo okuphansi kuvimbela umonakalo. Umkhiqizi wamathayela waseShayina unciphise izikweletu zamandla ngo-10% ngemva kokufakwa kabusha, ngokusebenzisa amandla aphansi ngo-15–20%.

Isengezo se-Raw Material:Igayiwe ibe yimpushana (ama-5-10% ezixubeni), ikhulisa amandla emishini (amandla aguquguqukayo aphezulu angama-25%) kanye nokuzinza kwe-thermal (ukulimala okungaphansi kuka-30% kokuthuthumela okushisayo) kumaceramic obuchwepheshe.