Izitini eziphakeme ze-alumina zikhiqizwa nge-bauxite chamotte ekhethiwe njengempahla eluhlaza eyinhloko, eshiswe ku-1450-1470 ° C ngenqubo ethuthukisiwe enokulawula okuqinile kwekhwalithi. Izitini Zomlilo ze-Alumina Eziphakeme zenziwa nge-alumina noma ezinye izinto ezingavuthiwe eziqukethe okuqukethwe kwe-alumina ephakeme ngokubunjwa nokudubula. ngenxa yokungathathi hlangothi kwayo kwe-alumina refractory ingamelana nokuguguleka kwe-asidi slag.
High Alumina Brick Process
Ngena ku-Khetha bese uhlunga i-chamotte ukuze wenze i-deironing ngaphambi kokuphuka, okungathuthukisa ikhwalithi yezitini ze-alumina eziphezulu. Ngoba kukhona ingxenye ephezulu ye-grog ezithakweni ezingafinyelela ku-90 ~ 95%. Khetha futhi uhlole i-deironing ngaphambi kokuchotshozwa kwe-grog.
Amabanga Amathathu Wezitini Eziphakeme Ze-Alumina
Ngokokuqukethwe okuhlukile kwe-Al2O3, izitini ze-alumina eziphakeme zingahlukaniswa ngamaBanga Amathathu e-China.
Izitini ze-Alumina eziphakeme zeBanga I zinokungaphezu kuka-75% okuqukethwe kwe-Al2O3.
Izitini ze-Alumina eziphakeme zeBanga II zinokuqukethwe okungu-60~75% kwe-Al2O3.
I-Grade III High Alumina Bricks inokuqukethwe okungu-48~60% kwe-Al2O3.
Izici ze-High Alumina Brick
Isitini se-alumina esiphezulu sinezici ezinhle ezifana nokusebenza kwezinga lokushisa eliphezulu, ukugqwala okukhulu nokumelana nokugqokwa, ukuminyana kwenqwaba, okuqukethwe kwensimbi ephansi, njll.
| Izinto | Izitini ze-alumina zebanga lokuqala | Izitini ze-alumina zebanga lesibili | Isitini se-alumina sebanga lesithathu | Izitini ze-alumina ezisezingeni eliphezulu |
| I-LZ-75 | I-LZ-65 | I-LZ-55 | I-LZ-80 | |
| I-Al2O3 % ≥ | 75 | 65 | 55 | 82 |
| I-Fe2O3 % ≤ | 2.5 | 2.5 | 2.6 | 2.0 |
| Ukuminyana ngobuningi g/cm3 | 2.5 | 2.4 | 2.3 | 2.6 |
| Amandla Okuchotshozwa Okubandayo I-MPa ≥ | 70 | 60 | 50 | 80 |
| 0.2MPa Refractoriness Ngaphansi Komthwalo ℃ | 1510 | 1460 | 1420 | 1550 |
| I-Refractoriness ℃ ≥ | 1790 | 1770 | 1770 | 1790 |
| I-Porosity ebonakalayo % ≤ | 22 | 23 | 24 | 21 |
| Ukushisa kabusha Ushintsho Lomugqa 1450℃×2h % | -0.3 | -0.4 | -0.4 | -0.2 |
Isicelo se-Alumina Brick High
Isitini esiphezulu se-alumina singasetshenziswa esithandweni somlilo, isitofu esishisayo, isithando somlilo sikagesi. kanye nezitini zomlilo eziphakeme ze-alumina ezisetshenziswa emikhakheni yensimbi nensimbi, i-nonferrous, ingilazi, usimende, i-ceramics, i-petrochemical, umshini, i-boiler, imboni yokukhanya, amandla, kanye nemboni yezempi njll.
