Silica Lime Bricks for Coke Oven CMAX-1
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1. Silica brick is the main refractory bricks used in glass melting furnace;its main crystal phase is Tridymite.
2. Silica brick for glass melting furnace is used in building checker chamber, chute, combustion chamber,coking chamber,and furnace arch etc.
3. Silica brick for glass furnace have following characters:
(1)High refractoriness under load.
(2)High heat conductivity.
(3)Good thermal shock resistance.
(4)Solidity stable of capacity in high temperature.
Tech Data
Silica brick for glass furnace | |||||
Item: | GF-96A | GF-96B | GF-95A | GF-95B | |
SiO 2 | ≥96 | ≥96 | ≥95 | ≥95 | |
Fe 2 O 3 | ≤0.8 | ≤1.0 | ≤1.2 | ≤1.2 | |
Apparent porosity % | ≤22(24) | ||||
Cold Crushing Strength MPa | Brick below20KG | ≥35(30) | |||
Brick ≥20KG | ≥30(25) | ||||
Refractoriness under load ºC | ≥1680 | ≥1670 | ≥1660 | ≥1650 | |
True density g/cm ³ | ≤2.34 | ≤2.34 | ≤2.35 | ≤2.35 | |
Silica brick for coke oven | ||
Item: | CO-94A | CO-94B |
SiO2: % | ≥94 | ≥94 |
Al 2 O 3 : % | ≤ 1.5 | ≤ 1.5 |
Fe2O3: % | ≤ 1.5 | ≤ 1.5 |
Refractoriness under load 0.2Mpa | ≥ 1650ºC | ≥ 1650ºC |
Apparent porosity: % | ≤ 22 | ≤ 24 |
Bulk density: g/cm ³ | ≤ 2.34 | ≤ 2.35 |
Cold crushing strength: MPa | ≥30 | ≥25 |
Permanent linear change % (1450ºC ×2h) | 0~0.2 | 0~0.2 |
Thermal expansion(1000ºC) | ≤1.28 | ≤1.30 |
Silica brick for hot blast furnace | |
Item | HBF-95 |
SiO2 | ≥ 95 |
Al2O3 | ≤ 1.0 |
Fe2O3 | ≤1.3 |
Apparent porosity % | ≤22(24) |
Cold crushing strength MPa | ≥45(35) |
Remaining quarts % | ≤1.0 |
Refractoriness under load ºC | ≥1650 |
Creep(0.2Mpa ×1550ºC×50h) % | ≤0.8 |
Thermal expansion coefficient (1000ºC) % | ≤1.25 |
Apparent density g/cm ³ | ≤2.32 |
- Q: The hot blast stove when the temperature did not rise against the brick interface decreased
- How to keep the brick masonry temperature not lower than 600 DEG C, while the exhaust temperature is not higher than 400 DEG C.
- Q: What is the effect of the content of silicon nitride in silicon nitride bonded silicon carbide brick on the use of electrobath? Thank you
- The main damage of silicon carbide side wall brick is stress damage, not chemical erosion. Chemical damage is formed prior to the formation of the groove, and the damage to the chemical erosion is little after the formation of the groove.
- Q: The introduction of silica brick
- An acid refractory consisting mainly of quartz and square quartz and a small amount of residual quartz and glass.More than 94% silica content. True density 2.35g/cm3. With acid resistance, slag erosion performance. Higher high temperature strength. The softening start temperature is 1620~1670 degrees. Long term use at high temperature without deformation. The thermal shock resistance is low (the heat exchange in water is 1~4 times). The natural silica is used as the raw material, and a proper amount of mineralizer is used to promote the transformation of quartz into quartz in the body. Slowly sintered at 1350~1430 DEG C in the reducing atmosphere. When heating up to 1450 degrees, the total volume of 1.5~2.2% expands, and the residual expansion can close the kerf and ensure the airtight and structural strength of the masonry.
- Q: The difference between clay refractory bricks and refractory brick in the application.
- Brick bearing soft temperature and close to the melting point, high temperature strength, can be in high temperature (above 1400 degrees) under the condition of long-term use,
- Q: Semisilica brick interpretation
- High temperature volume stability. Volume change is small.
- Q: Can iron oxide be used as refractory material?
- Iron oxide can not be used as refractory material, but it can be used as refractory additive. Iron oxide can be used as pigment
- Q: Why is the three oxidation of two silicon is very harmful impurities in silica brick
- Heating calcination is the best way to extend this sort of impurity removal. Remove impurities
- Q: Common bond brick?
- When adding ingredients, the amount of lime added shall be converted to CaO, and the amount of addition varies depending on the product, usually fluctuating at 1.5~2.5%. For example, the production of coke oven silica brick, the dosage of CaO is 2.0~3.0%; the production of electric furnace top brick, the dosage of CaO is 1.4~1.75%.
- Q: Why is the highest brick coke oven temperature measuring point temperature not exceeding 1450
- That is because the brick load softening point the maximum temperature is 1450 degrees.
- Q: Such purpose and scope please give me detailed points thank you
- Acid refractory brick is mainly composed of tridymite and cristobalite and quartz and a small amount of residual glass phase.
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Silica Lime Bricks for Coke Oven CMAX-1
- Ref Price:
-
- Loading Port:
- China Main Port
- Payment Terms:
- TT OR LC
- Min Order Qty:
- -
- Supply Capability:
- -
OKorder Service Pledge
OKorder Financial Service
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