Place of brick of adiabatic heat preservation has those with light aggregate

Alumina, zirconia is hollow ball
Alumina is hollow the ball is industrial alumina blow what make and become through tall Wen Dianrong. Its advocate A-AL203 of crystallization Xiang Wei, chemical composition is more than for AL203 98.5% , sio2 and Fe203 are less than respectively 0.5% . Hollow ball grain is the glomeration of white, hollow, Bao Bi, natural courseDeserve to be 5-3mm7%-10% commonly, 3-2mm10%-17% , 2-1mm22%-32% , 1-0.5mm26%-36% , 0.5-0.2mm15%-28% , its accumulation density is 540-600kg/M³ , 600-650kg/M³/650-750kg/M³ , 750-850M³ and 850-950kg/M³ accordingly. Use temperature for a long time of pushball to be 1800 ° C.

Float bead
Float bead it is the siliceous aluminium that comes out from the elect by ballot in fly ash of heat and power plant qualitative glass bead body, show hoar, the wall is thin, medium accuse, the surface closes and smooth. Float bead because of coal of the circumstance such as condition of qualitative, combustion different, function also has bigger difference. Apply to fireproof material float bead, chemical compositionFor AL203 30%-43% , sio2 50%-61% , fe203 1.1%-3.8% , caO 0.5%-1.8% , mgO 0.2%-1.3% , r2o 0.2%-1.3% , r2O 0.4%-1.6% , burn break 0.2%-1.5% . Fireproof spend ≥ 1610 ° C. Float bead 200 μ of grain ＜ M, the capacity is0.3-0.4g/M³ . Its characteristic is body light, carapace firm, thermal conductance is small, it is the good raw material of light simple fireproof stuff.

Poriferous grog

Poriferous grog is machine the to calcine after processing with horniness clay ore or bauxite stone classics and become. Add ore crocus first burn lost property and bond, be in ball dish go up ball; Next, enter the makings ball outfit that has particular strength pit inside, via the to calcine of 1350-1460 ° C, obtain poriferousClinker. This makings cent pledges for clay and tall aluminium pledges two kinds, all serve as fireproof aggregate, can use directly, also but broken after classificationing, use.

Poriferous Molaishi
Poriferous Molaishi is heat up high temperature of raw material classics with the day firing, the majority is its crystallization photograph growth of system of Mo Laishi Ju Jing is good, its are acicular reach crystal to make furcate reticulate structure each other, become poriferous Molaishi namely.

Ceramists
Ceramists department uses the raw material such as Yi Rong clay, shaly, fly ash and gangue, the bulbiform appearance that pass to calcine and makes is poriferous grain, its surface is rough and hard, be similar to pottery and porcelain to change, interior is beehive shape, have the imperceptible air hole that each other does not connect. The characteristic of ceramists is unit weight small, Thermal conductance is low, intensity is high, it is a kind of admirable man-made light aggregate, applied range is wider, basically use as in adventitious fireproof material fireproof aggregate.
Expand pearlite
Expand pearlite is to use pearlite to be made via to calcine hind, it shows grain of white, poriferous shape, namely the surface is slick, the wall is thin, beehive shape structure is inside. Accordingly, expand pearlite unit weight is little, it is 40-550kg/M³; thermal conductance commonly low, 0.028-0.048W is when 200-500 ° C/ (M`K) is fireproof degree for 1280-1360 ° C, have sound insulation and frost resistance at the same time can.

Expand vermiculite
Expand vermiculite is to use vermiculite to be become via to calcine hind. Its unit weight is 80-300kg/M³ . When to calcine bad, foreign matter is much, allow great. Its grain is comprised by paper-thin chip. Air is filled between each chip, because low and this thermal conductance is bibulous rate is old.