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Izitini Eziphakeme Ze-Alumina Refractory zeSithando Somlilo Sezimboni

Ukucindezela Imikhiqizo Emise Ngomshini

Izitini Eziphakeme Ze-Alumina Refractory zeSithando Somlilo Sezimboni

1.Izitini ze-alumina eziphakeme ziyizitini eziphikisayo ezenziwe ngokuyinhloko nge-alumina (Al2O3) nezinye izinto zokwakha, ezidizayinelwe izinhlelo zokusebenza ezishisa kakhulu njengeziko, okokhela, nama-reactors.
2.Ukucutshungulwa: i-bauxite isetshenziswa njengempahla eluhlaza eyinhloko, i-clinker ihlelwa ngokuhlelwa futhi ihlungwe ukuze ikhiphe insimbi, futhi ilungiswa ngokushisa okuphezulu kokushisa.
3. Ukukhiqiza: Kwenziwe ngokuxuba izinto ezingavuthiwe (i-bauxite noma amanye amaminerali ane-alumina ephezulu), ziwalolonge zibe izitini, futhi ziwashise emazingeni okushisa aphezulu. Inqubo yokukhiqiza ingase ihlanganise izithasiselo ezahlukene kanye nezibophezelo ukuze kuzuzwe izakhiwo ezifiselekayo.
4. Izitini ze-alumina eziphakeme zikhethwa ngenxa yokuqina nokusebenza kahle kwazo ezindaweni ezidlulele, okuzenza zibe yingxenye ebalulekile emisebenzini eminingi yezimboni ezisezingeni eliphezulu.

    Izici

    Izingeniso ze-Alumina Brick eziphakeme2

    1. I-High Refractoriness: Ingakwazi ukumelana namazinga okushisa aphakeme kakhulu, okuwenza afanelekele ukusetshenziswa eziko nakwezinye izindawo ezinokushisa okuphezulu.
    2. Ukuqina Okushisayo Okuhle Kakhulu: Lezi zitini zigcina ubuqotho bazo besakhiwo kanye nezakhiwo zemishini ngisho nangaphansi kwezinguquko ezisheshayo zokushisa, zinciphisa ingozi yokulimala kokuthuthumela okushisayo.
    3. Izakhiwo Ezinhle Zokugqumisa: Nakuba zingasebenzi njengezinto ezikhethekile zokuvikela ukushisa, izitini ze-alumina eziphakeme zinikeza ukufakwa okuthile ngokumelene nokudluliselwa kokushisa, okusiza ukonga amandla ezimbonini zokusebenza.
    4. Ukumelana Nokugqwala Nokuhushulwa: Akwazi ukumelana nokugqwala kwamakhemikhali nokuguga kwemishini, okunweba isikhathi sazo sokuphila ezimweni ezinzima zokusebenza.
    5. I-Thermal Conductivity Ephansi: Lesi sakhiwo sisiza ukunciphisa ukulahlekelwa ukushisa nokugcina amaphrofayili okushisa angashintshi phakathi kolayini oluphikisayo.
    Sekukonke, izitini eziphakeme ze-alumina zibaluleke kakhulu ngenxa yokuqina kwazo, ukwethembeka, kanye nekhono lokumelana nezimo ezimbi kakhulu ezinqubweni ezihlukahlukene zezimboni.

    Isicelo

    Izitini eziphakeme ze-alumina zivame ukusetshenziswa ezimbonini ezifana nensimbi, usimende, ingilazi, nezitsha zobumba ukuze zikwazi ukumelana namazinga okushisa aphakeme nezimo ezinzima. I-Masonry blast furnace, isitofu se-hot blast, i-electric furnace top kanye ne-ladle permanent linening.

    Inkomba enkulu yokusebenza ngokomzimba namakhemikhali

    Inkomba I-LZ-75 I-LZ-65 I-LZ-55 I-LZ-48
    I-Al2O3% ≥ 75 65 55 48
    I-Refractoriness ℃ ≥ 1790 1790 1770 1750
    I-Refractoriness ngaphansi komthwalo (0.6%) ℃ ≥ 1520 1500 1470 1420
    Ukushintsha komugqa unomphela (1500℃×2h)% +0.1~-0.4 +0.1~-0.4 +0.1~-0.4 +0.1~-0.4 (1450℃)
    I-porosity ebonakalayo % amashumi amabili nantathu amashumi amabili nantathu amashumi amabili nambili amashumi amabili nambili
    I-CCS MPa ≥ 53.9 49 44.1 39.2