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Compact aluminum, magnesium, calcium grog refractory and preparation method thereof
The invention discloses a compact aluminum, magnesium and calcium grog refractory and a preparation method thereof. The compact aluminum, magnesium and calcium grog refractory is prepared from the following components in percentage by weight: 74%-88% of Al2O3, 4%-14% of MgO, 2%-8% of CaO and 2%-4% of TiO2. The preparation method comprises the following steps: (1) respectively levigating limestone, magnesite and bauxite; (2) mixing and adding titanium dioxide micro-powder to prepare a mixed material; (3) mixing evenly and pressing into green balls; (4) burning for the first time and preparing a primary clinker; (5) crushing, levigating again and then pressing into balls; and (6) burning for the second time. The titanium dioxide micro-powder is adopted as a sintering accelerant; and the compact aluminum, magnesium and calcium grog refractory can be obtained at relatively low secondary burning temperature and relatively short heat preservation time.
Compact aluminum, magnesium, calcium grog refractory and preparation method thereof
The invention discloses a compact aluminum, magnesium and calcium grog refractory and a preparation method thereof. The compact aluminum, magnesium and calcium grog refractory is prepared from the following components in percentage by weight: 74%-88% of Al2O3, 4%-14% of MgO, 2%-8% of CaO and 2%-4% of TiO2. The preparation method comprises the following steps: (1) respectively levigating limestone, magnesite and bauxite; (2) mixing and adding titanium dioxide micro-powder to prepare a mixed material; (3) mixing evenly and pressing into green balls; (4) burning for the first time and preparing a primary clinker; (5) crushing, levigating again and then pressing into balls; and (6) burning for the second time. The titanium dioxide micro-powder is adopted as a sintering accelerant; and the compact aluminum, magnesium and calcium grog refractory can be obtained at relatively low secondary burning temperature and relatively short heat preservation time.
Compact aluminum, magnesium, calcium grog refractory and preparation method thereof
CHEN MIN (Autor:in) / XU LEI (Autor:in) / YIN XUELIANG (Autor:in) / JIN LIANGYU (Autor:in) / WANG NAN (Autor:in)
10.06.2015
Patent
Elektronische Ressource
Englisch
IPC:
C04B
Kalk
,
LIME
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