Brick of Mo Laishi heat preservation is with Molaishi (3Al2O3 · 2SiO2) the expensive aluminous simple fireproof stuff that gives priority to brilliant photograph. General alumina content is in 65% ～ 75% between. Mineral composition divides Molaishi outside, contain alumina among them inferior person still contain a few glass photographs and Fang Shiying; Contain alumina taller person still contain a few corundum.
At present brick of Mo Laishi heat preservation applies to crucible of kiln of drawer of porcelain of kiln of path of roller of splitting decomposition furnace, hot-blast stove, pottery and porcelain, report, glass and the liner of all sorts of electric stove.
The making craft of brick of Mo Laishi heat preservation has agglomeration Mo Laishi brick and electric frit Mo Laishi brick two kinds:
1, agglomeration not comes stone brick is main raw material with tall aluminous aluminous grog, join a few clay or unripe alumina to make bond, via shaping, firing and make.
2, electric frit not comes stone brick is raw material with alumina of tall alumina, industry and fireproof clay, join charcoal or coke granule to make reducer, law of reductive report frit is used to make after shaping.
The crystallization of electric frit Mo Laishi is bigger than agglomeration Mo Laishi, heatproof shake sex is better than agglomeration goods. Their high temperature capability basically depends on the uniformity that the content of alumina and glass of Mo Laishi get along with distributing.
According to temperature different Molaishi's common general component is third class, gm23, Gm26, Gm28, temperature is respectively 1350, 1400, 1450.
The product advantage of brick of heat preservation of tall aluminous Mo Laishi:
1, rate of low heat conduction, have effect of very good adiabatic heat preservation;
2, low hot frit, energy-saving in intermittent operation effect is apparent;
3, fireproof degree tall; The higher volume that contain aluminium makes its still maintain good performance below reducing atmosphere;
4, intensity of compression of hot condition of brick of Mo Laishi heat preservation is high;
5, exterior dimension essence is accurate, accelerate build by laying bricks or stones to build career, reduce fireproof mud to use an amount, assured the intensity of body of build by laying bricks or stones and stability, prolong the life of liner thereby;
6, can process special form. Seam in order to reduce number of brick of build by laying bricks or stones and build by laying bricks or stones.
Because of Molaishi heat preservation brick has these characteristics, be mixed at shaft of hot-blast stove roof, blast furnace by wide application thereby lining of blind angle of system of splitting decomposition of kiln of agglomeration of regenerator of kiln of frit of hearth, glass, pottery and porcelain, oil.
Manage changes target related brick of Mo Laishi heat preservation:
In production the kiln furnace target in using chooses brick of Mo Laishi heat preservation.
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