Eco Friendly Quartzite Silica Insulating Brick For Furnace
Definition:
Insulating Silica Fire 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.
Advantage:
Lower impurity content
Excellent resistance in slag abrasion
No shrink in burn repeatedly
Super higher cold crush strength character
Good performance in high temp refractoriness under load
Higher temperate resistant with good refractoriness
Application:
Insulating Silica Fire Brick are used in the blast furnace blast area and communicate with the
blast furnace exhaust. The light silicon bricks have a temperature
range of 1000 ~ 1300 ℃. Can meet the whole cycle life of hot blast
stove
Insulating Silica Fire Brick are also used in the partition walls of the carbonization and
combustion chambers of coke ovens, the regenerators and slag
chambers of open hearth furnaces, soaking furnaces, glass melting
furnaces, refractory materials and ceramic firing kilns. There are
also vaults and other load-bearing parts for kilns. It is also used
for the high-temperature load-bearing part of hot blast stove and
the top of acidic open hearth furnace.
Product Description:
| Insulating Silica Fire Brick |
| Item | GGR-1.2 |
| SiO2 % | ≥91 |
| Bulk Density ( g/cm3) | ≤1.2 |
| Cold Crushing Strength (MPa) | ≥5 |
| Linear Change on Reheating(%) | 1550℃, 2h | ≤0.5 |
Refractoriness Under Load
0.1MPa, ℃ | ≥1520 |
| Thermal conductivity(350±25)℃ (W/mK) | ≤0.70 |
Why choose us
Q: Are you trading company or manufacturer?
A: We are Manufacturer of refractory materials that have 4 plants
in China; So we can provide you with high quality products at more
competitive prices. we can provide you professional solutions about
your problems. Although our salesman cannot reply you immediately,
pls leave your email or phone number, we can let our technician
directly help you ASAP.
Q: Do you accept OEM?
A: Sure, we can do OEM for much kind of brick.
Q: What information do we need to provide?
A: If you are clear about the products you purchased, please send
us the brick drawings, index(include chemical and physical
indicators )and order quantity.
If you are not familiar with it, please tell us the usage and
working temperature, we will recommend the product to you.
Q: What is the Warranty for the fire brick?
A: For all the brick, we have 1 years warranty. If any quality problems on our side occurred in this
period, we will take on the shipping cost and replacement.
