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.
High alumina brick is one of the indispensable basic refractory materials in the upper and middle parts of blast furnace body in iron and steel industry
White corundum is made from industrial alumina powder, which is smelted in an arc at a high temperature above 2000 ℃ and then cooled. After crushing and shaping, magnetic separation to remove iron, it is divided into various particle sizes.
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.
In the blast furnace smelting process, blast furnace taphole clay, as a key plastic material, plays a vital role. This article will introduce in detail the product characteristics, working principle and innovation of blast furnace taphole clay in improving furnace stability and production efficiency.
High alumina brick is mainly used for lining of blast furnace, hot blast furnace, electric furnace roof, reverberatory furnace and rotary kiln. In addition, high alumina brick also widely used as open hearth regenerative lattice brick, pouring system with plug,such as nozzle brick.
Refractory ramming mass (refractory taphole mass) is a kind of Refractory used for lining of blast furnace tapping groove. It is mainly used to protect the blast furnace out of the ditch from high-temperature hot metal and slag erosion and erosion, and has excellent high-temperature resistance and wear resistance. The ramming material for the iron discharge ditch is usually composed of corundum, silicon carbide and carbonaceous material, which has the ability of resisting hot metal and molten slag erosion and scouring, reburning line change small, strong resistance to a variety of oxidation characteristics. The construction of the ramming material for the iron ditch is convenient, easy to dismantle and repair, does not produce harmful gas, and is beneficial to environmental protection.
Fireclay bricksis suitable for supporting hot blast stoves of large, medium and small blast furnaces