High strength wearing-resisting Si-Mullite refractory brick
Discription:
It is made of the high grade bauxite clinker as the aggregate, adding the BFA,SiC, ɑ-Al2O3 fine powders in the substrate, through the reasonable proportion of the particles,high pressing, high temperature sintered.
Feature:
High strength, high wearing-resisting at high temperature state, low thermal conductivity, strong thermal shock stability, etc.
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High strength wearing-resisting Si-Mullite refractory brick
Chemical and Physical Properties
|
ITEM PROPERTY
|
High strength wearing-resisting Si-Mullite brick
HXSSM-01 |
Si-Mullite Refractory brick HXSM-1650 |
Si-Mullite Refractory brick HXSM-1680 |
|
Al2O3 % ≥ |
67 |
63 |
65 |
|
SiO2+SiC % ≥ |
25 |
35 |
30 |
|
A. P. % ≤ |
|
20 |
22 |
|
B. D. g/cm3 ≥ |
2.50 |
2.55 |
2.65 |
|
C. C. S. (MPa)≥ |
120 |
90 |
85 |
|
T. S. R. (1100℃ Cool water) times ≥ |
25 |
10 |
12 |
|
R.U.L.@0.2MPa Ta ℃≥ |
1670 |
1600 |
1650 |
|
Refractoriness ℃≥ |
1790 |
1790 |
1790 |
|
T. C.. (1000℃)
W/m*K ≤ |
1.80 |
2.5 |
2.3 |
|
Wearing Resisting Rate
(cc ) |
8.4 |
8.2 |
7.8 |
Application:
It is mainly used in the lower transition zone of the cement rotary kiln,the outer surface temp. Of the rotary kiln body bring down evenly about 80℃ comparing to the magnesia-Spinel refractory brick, bring down evenly about 40℃ comparing to the traditional 1650,1680 Si-Mullite refractory brick. It is the ideal refractory brick used in the lower transition Zones of above new type of dry method 5000 TPD cement plant.
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