The alkali-resistant brick for cement kiln has the characteristics of strong alkali erosion resistance, good thermal shock resistance and high cost performance.
Alkali resistant bricks for cement kiln
The alkali resistant brick for cement kiln has the characteristics of strong alkali erosion resistance, good thermal shock resistance and high cost performance.
Low-alumina clay bricks with an AL2O3 content of 30-25% are made of low-alumina refractory clay as the main raw material, and are silicon-alumina refractory products with excellent alkali erosion resistance in cement kiln systems.
Yuying Refractories produces all kinds of high, medium and low grade basic refractories all year round. Among them, alkali-resistant bricks have been recognized by many domestic manufacturers. The company has a 168-meter high-temperature tunnel kiln with a daily output of 100 tons of refractory bricks.
|
Index |
normal type |
High strength |
Insulation type |
dome type |
|
Al2O3%≥ |
35 |
40 |
30 |
40 |
|
0.2Mpa softening temperature under load(T0.6)℃≥ |
1250 |
1300 |
1200 |
1250 |
|
Bulk density g/cm3≥ |
2.10 |
2.17 |
≤1.8 |
2.15 |
|
Apparent porosity %≤ |
27 |
25 |
- |
26 |
|
Normal temperature compressive strength≥ |
35 |
50 |
20 |
40 |
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.
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.
It is widely used in the lining of the kiln working face which is in direct contact with the flame, and has become one of the research hotspots in recent years.
The high-alumina refractory bricks sold by Yuying refractory manufacturers are commonly used refractory bricks with high thermal stability and refractoriness above 1770°C. It has good slag resistance and is used for the lining of steelmaking electric furnaces, glass melting furnaces, cement rotary furnaces, etc.
The Al2O3 content of clay heat Clay insulating refractory bricks is generally more than 40%, and the Fe2O3 content is less than 2.0-2.5%. The clinker in the ingredients is 65-85%, and the combined clay is 35-15%. The crushed bonded clay and the finely ground clinker are mixed and milled, and then mixed with the granular clinker to make semi-dry mud, high pressure molding, and sintering at about 1400 ℃, with good performance.
High alumina refractory bricks are the backbone of high-temperature industrial processes. By understanding their properties, applications, and supplier selection criteria, businesses can enhance operational efficiency and reduce downtime. For industries seeking durable, cost-effective solutions, partnering with certified refractory materials suppliers in China ensures access to cutting-edge technology and reliable supply chains.
Converter, electric furnace gunning material has the characteristics of high adhesion rate, good high temperature corrosion resistance, etc.
The refractory ramming material is prepared from a high proportion of granular and powdery materials and a very low proportion of binders and other components, even all of which are composed of granules and powders, and are subject to strong ramming. Bulk materials for construction.

