Coke furnace silicon bricks are mainly used in the heat storage room, oblique road, charcoal room, combustion room, top of the furnace, and bottom of the furnace.
Silica refractory brick is a refractory product with silicon dioxide as its main component and its content of more than 93%. It uses quartz rock as raw materials, adds mineralizers and binding agents, and is made at high temperatures at high temperatures. Its mineral composition is Sylphy, and a small amount of residual quartz and high -temperature glass are coexist. For coke furnaces, hot air furnaces, glass kiln, etc.
Silica brick are acidic refractory materials, strong anti -acid residue erosion capacity, load weight softening temperature is as high as 1670 degrees, high temperature volume is stable, long -term use does not deform, and silicon dioxide content is more than 94%. Thermal equipment lining.
The main indicators of Silica bricks:
project
JG-94
Bottom of the furnace
Stove wall
Other parts
SiO2%
≥94.5
≥94.0
Al2O3%
≤1.2
≤1.5
Fe2O3%
≤1.2
≤1.5
CaO%
≤3.0
≤3.0
Na2O-K2O%
≤0.35
≤0.35
Apparent porosity(%)
≤22
≤24
Density(g/cm3)
≤2.33
≤2.34
Normal temperature resistance intensity(Mpa)
≥40
≥35
≥28
0.2Mpa Heavy softening start temperature(℃)
≥1650
Heating permanent change rate(%)1450℃×2h
0~0.2
Residual quartz stone
≤1.5
Thermal expansion rate
≤1.28
≤1.30
Silica brick pictures:
Advantages of silica bricks:
SiO2≥94%
Long work time
Anti -high temperature
Zero expansion
Punch
Strong anti -acid slag erosion ability
High softness temperature of the lotus
High temperature volume stable
The purpose of silica bricks:
Coke furnace silicon bricks are mainly used in the heat storage room, oblique road, charcoal room, combustion room, top of the furnace, and bottom of the furnace.
Special Acid-proof Brick
Lightweight acid-proof Brick
Acid resistant brick is the ideal choose for your project with their features of proof pressure, corrosion resistance, easy to clean and acid-base resistance.
Silica brick: an acidic refractory mainly composed of tridymite, cristobalite and a small amount of residual quartz and glass phases. Its silica content is more than 94%, it has anti-acid slag erosion performance, high high temperature strength, high load softening temperature, long-term use in high temperature flower wells without deformation, but low thermal shock stability (heat exchange in water is 1-4 Second-rate).
Silica bricks for coke ovens are siliceous refractory products used for building coke ovens with tridymite as the main crystal phase. Coke oven silica bricks are used to build regenerator walls, ramps, combustion chambers, carbonization chambers and furnace roofs of coke ovens. Silica brick is an acid refractory material with good resistance to acid slag erosion. The softening temperature under load is as high as 1640-1670 °C, and the volume is relatively stable in long-term use at high temperature.
High alumina refractory mortars used in kilns in metallurgy, building materials, machinery, chemical industry, electric power and other industries, used for masonry clay bricks, high alumina bricks, corundum bricks, with full ash joints, good air tightness of masonry, high bonding strength, high temperature performance Excellent, suitable for construction time and so on.
Magnesia chrome bricks are refractory products with magnesia (MgO) and chromium trioxide (Cr2O3) as the main components, and periclase and spinel as the main mineral components. The main raw materials for the manufacture of magnesia-chrome bricks are sintered magnesia and chromite.
The refractoriness of clay bricks is comparable to that of silica bricks, up to 1690~1730℃, but the softening temperature under load is more than 200℃ lower than that of silica bricks. Because in addition to the high refractory mullite crystal, the clay brick also contains nearly half of the low melting point amorphous glass phase.