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.
Acid-resistant bricks for coke ovens
Product features:
Acid-resistant bricks have the properties of anti-permeability ,anti-freezing, salt resistance,alkali resistance and week acid corrosion,and have strong adhesion to a variety of materials, it can be constructed on the surface of damp substrate without drying.It can be hardened in humid environment or under water. Easy operation and construction,similar to ordinary cement mortar construction ,easy cleaning ,water can be cleaned .In industry, it is mainly used in acid ditch. acid well ,acid storage and-loaded ground.
|
index |
Special acid-resistant brick |
Lightweight acid-resistant brick |
|
SiO2%≥ |
65 |
65 |
|
Bulk density g/cm3 BD |
1.6-1.8 |
1.0-1.3 |
|
Compressive strength CCS Mpa≥ |
15 |
10 |
|
Thermal Conductivity w/m.k (350℃±25℃)≤ |
0.65 |
0.45 |
|
water absorption%WR≤ |
15 |
|
|
Acid resistance%APR≥ |
98 |
97 |
|
long-term operating temperature℃HR< |
1000 |
950 |
|
characteristic |
Good acid resistance, small volume change, and significant corrosion resistance and corrosion resistance |
|
|
Application area |
flue, chimney lining, etc. |
|

Silica brick is an acidic refractory mainly composed of tridymite, cristobalite and a small amount of residual quartz and glass phases
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.
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.
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.
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.
silicon mullite brick is a kind of refractory brick product made of super high alumina bauxite and silicon carbide as raw materials through a special sintering process. It has the characteristics of continuously forming a protective layer and reducing ring formation, and its heat resistance is also very good. The softening temperature under load can reach 1600 ℃, and the service life is long. Mainly used in the transition zone, decomposition zone and cooler of small and medium-sized cement kilns.
Magnesia alumina bricks use periclase as the main crystal phase and magnesia-alumina spinel as the matrix. They are better in thermal shock resistance than magnesia bricks. In order to improve the thermal shock resistance of magnesia bricks, alumina or alumina is introduced into the ingredients. Bauxite clinker fine powder to form a magnesia-alumina sharp stone matrix, thereby making magnesia-alumina bricks

