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Product Details:
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| Raw Material: | Silica Sand | Refractoriness: | ≥1790℃ |
|---|---|---|---|
| SiO2: | ≥95% | Fe2O3: | ≤2.0% |
| Apparent Porosity: | ≤23% | Bulk Density: | ≥1.8g/cm3 |
| CCS: | ≥40Mpa | RUL: | ≥1650℃ |
| High Light: | 1790C Silica Refractory Bricks,1790C Special Silica Refractory Bricks,1790C Special Refractory Bricks |
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Hot Sale 1710C Refractory High Strength and High Silica Brick For Coke Oven
Hot Sale 1710C Refractory High Strength and High Silica Brick generally use crystalline quartzite or silica sand as raw materials, and the mineral composition is: phosphorite 78% to 86%, cristobalite 13% to 15%, and quartz 4% to 7%. Add combustible materials to the ingredients, such as coke, sawdust, anthracite, carbonized rice husk, or use gas foaming to form a porous structure. Insulating silica brick Price are heat-insulating silicon refractory products with a SiO2 content of more than 90% and a bulk density of less than 1.2. The refractoriness and softening temperature under load are not much different from ordinary silica bricks with the same composition. However, due to the many pores, the compressive strength, slag resistance, and corrosion resistance are not as good as ordinary silica bricks, but the thermal shock resistance has been improved. It is similar to the production process of ordinary silica bricks. Some mineralizers (CaO, Fe2O3) are added to the ingredients to promote the conversion of quartz, and pulp waste liquid is used as a binder to make the bricks have a certain strength. When using coke or anthracite as combustible additives, because the ash will be brought into Fe2O3 and Al2O3, there is no need to add iron scales in the ingredients. When the siliceous Insulating silica bricks are fired, a strong oxidizing flame should be maintained before 1200°C to make the additions burn out completely.
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Item |
Silica Brick for Coke Oven |
Silica Brick for hot-blast Stove |
|
Brand |
NCSB-94 |
NCSB-95 |
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SiO2 % ≥ |
94.5 |
95.0 |
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Al2O3 % ≤ |
1.5 |
1.0 |
|
Fe2O3 % ≤ |
1.5 |
1.3 |
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CaO % ≤ |
2.5 |
-- |
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Na2O+K2O% ≤ |
-- |
-- |
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True Density≤ g/cm3 |
2.33 |
2.32 |
|
Apparent.Porosity.% ≤ |
23 |
22 |
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Cold.Crushing.Strength(Mpa)≥ |
40 |
45 |
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Permanent Linear Change%≤ |
0~-0.2 |
0~-0.2 |
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Refractoriness Under Load 0.2Mpa |
1650 |
1650 |
|
Thermal Expansion Rate |
1.28 |
1.25 |
Hot Sale 1710C Refractory High Strength and High Silica Brick for coke oven has low alkali and low content of residual quartz.
Hot Sale 1710C Refractory High Strength and High Silica Brick has high strength and refractoriness under load.
Hot Sale 1710C Refractory High Strength and High Silica Brick also has strong ability in acid slag resistance.
This silica brick is used to the walls, hearth or other parts of the combustion chamber, and carbonization chamber
Zhengzhou Annec CO., Ltd. was founded in 2003, and has been a NASDAQ listed corporation since 2011 with ticker identification ANNC. Annec had become the industrial leader within China in the areas of refractory production, Engineering for hot blast stove of blast furnace, and capability for EPC project. Annec has its own Provincial Enterprise Technology Center and Top Combustion Hot Blast Stove Research Centre, Annec (Beijing) Engineering & Technology Co., Ltd and four Manufacturers for Refractories. The annual output of different type of refractories can reach 150 thousand tons, and undertaken capability of more than 10 turnkey projects for hot blast stove.
Contact Person: Mrs. LI
Tel: 0086-18538075889
Fax: 86-0371-69938888
