Izitini zeMagnesia zinokuqukethwe kwe-magnesium oxide okungaphezu kuka-90% futhi zamukela i-periclase njengesigaba esiyinhloko sekristalu. Izitini zeMagnesite zingahlukaniswa ngezigaba ezimbili zezitini zeMagnesia ezishisiwe kanye nezitini zeMagnesite eziboshwe ngamakhemikhali. Izitini zeMagnesite zisebenza kahle kakhulu ngamandla aphezulu omshini okushisa okuphezulu kanye nokuqina komthamo. Futhi zingasebenza ekushiseni okuphezulu okungu-1750℃, izitini zeMagnesite ziyimikhiqizo efanelekile yokusetshenziswa kwesithando seglasi.
Izakhiwo Zezitini Ze-Magnesia
- Ama-refractorine aphezulu,
- Ukumelana ne-alkaline slag,
- Ukumelana nokuguguleka komhlabathi kanye nokulwa nokubola okuhle kakhulu,
- Ukuqina okuphezulu ngaphansi komthwalo,
- Amandla aphezulu okusebenza ngomshini,
- Ukuqina kwevolumu ekushiseni okuphezulu.
Inqubo Yokukhiqiza Izitini Ze-Magnesia
Izitini ze-Magnesia zingahlukaniswa ngezinhlobo ezimbili: isitini se-magnesite esishisiwe kanye nesitini se-magnesite esiboshiwe ngamakhemikhali. Izitini ze-magnesite ezishisiwe zenziwe ngezinto zokusetshenziswa ze-periclase, ngemva kokushiswa ngokushisa okuphezulu okungu-1550 ~ 1600℃ ngokuchoboza, ukuxuba, ukuncibilikisa kanye nokubumba. Imikhiqizo yobumsulwa obuphezulu inokushisa okushisiwe okungaphezu kuka-1750℃. Isitini se-magnesite esingashisiwe senziwe ngokungeza i-ejenti yamakhemikhali efanelekile ngokuncibilikisa, ukubumba kanye nokomisa.
Ukuhlukaniswa kwezitini zeMagnesia
Ngenxa yokwakheka kwamakhemikhali ahlukene ezitini ze-magnesia, ezingahlukaniswa ngezinhlobo ezahlukene, futhi zonke lezi zitini zikhiqizwa ngokusila. Ngokusekelwe ezintweni zokusetshenziswa ezahlukene, izitini ze-magnesia zingahlukaniswa ngezigaba ezilandelayo:
Isitini se-magnesia esivamile: itshe le-magnesite elicwebezelayo.
Isitini se-magnesia esihlanganisiwe ngqo: i-magnesite ecwebezelayo ehlanzekile kakhulu.
Isitini se-Forsterite: i-peridotite
Isitini se-Magnesia calcia: i-magnesite eqoshiwe equkethe i-calcium ephezulu.
Isitini se-silica se-Magnesia: itshe le-magnesite elino-silicon ephezulu.
Isitini se-Magnesia chrome: i-sintered magnesite kanye ne-chrome ore ethile.
Isitini se-Magnesia alumina: itshe le-magnesite elicwebezelayo kanye ne-Al2O3.
Imininingwane Yezitini Ze-Magnesia Ezingaguquki Ze-Rongsheng
| Izinto | Izinhlamvu zomzimba nezamakhemikhali | ||||||
| M-98 | I-M-97A | I-M-97B | I-M-95A | I-M-95B | M-97 | M-89 | |
| I-MgO % ≥ | 97.5 | 97.0 | 96.5 | 95.0 | 94.5 | 91.0 | 89.0 |
| I-SiO2 % ≤ | 1.00 | 1.20 | 1.5 | 2.0 | 2.5 | - | - |
| I-CaO %≤ | - | - | - | 2.0 | 2.0 | 3.0 | 3.0 |
| Ukugeleza Okubonakalayo % ≤ | 16 | 16 | 18 | 16 | 18 | 18 | 20 |
| Ubuningi be-Bulk g/cm3 ≥ | 3.0 | 3.0 | 2.95 | 2.90 | 2.85 | ||
| Amandla Okuchoboza Okubandayo i-MPa ≥ | 60 | 60 | 60 | 60 | 50 | ||
| 0.2Mpa Ukungazweli Ngaphansi Komthwalo ℃ ≥ | 1700 | 1700 | 1650 | 1560 | 1500 | ||
| Ushintsho oluqondile oluhlala njalo % | 1650℃×2h -0.2~0 | 1650℃×2h -0.3~0 | 1600℃×2h -0.5~0 | 1600℃×2h -0.6~0 | |||
Ukusetshenziswa Kwezitini Ze-Magnesia Ekwenzeni Isithando Somlilo
Izitini ze-Magnesite zifanelekela zonke izinhlobo zezitofu zokushisa okuphezulu, njengezitofu ze-metallurgical. Ngaphezu kwalokho, izitini ze-magnesia zisetshenziswa kabanzi kwezinye izinto ezishisayo, njenge-hyperthermia tunnel kiln, ulwelwesi lwe-rotary cement kiln, phansi nodonga lwesitofu sokushisa, igumbi lokuvuselela lesitofu sengilazi, phansi nodonga lwesitofu sikagesi nokunye.
Umkhiqizi Wezitini Ze-Magnesia eShayina
Umkhiqizi we-RS refractory ungumkhiqizi wezitini ze-magnesia ochwepheshe eShayina, angakunikeza izitini ze-magnesite ezisezingeni eliphezulu. Uma unesidingo sezitini ze-magnesia, noma unemibuzo ngezitini ze-magnesia mayelana nezinkomba zomzimba nezamakhemikhali, sicela usithinte mahhala, ukuthengisa kwethu kuzokuthinta ngokushesha okukhulu.
