Alkali- Resistance Brick Introduction
Alkali resistance brick is made of low alumina refractory clay as main material, which is a kind of low alumina brick with good alkali erosion resistance performance. And alkali proof brick is a kind of low alumina brick, the Al2O3 content is 30-25%, is a kind of silica-alumina series refractory brick, alkali resistance fire bricks can be used in cement kiln.
Alkali- Resistance Brick Properties
- High refractoriness under load
- Good high temperature structure
- Good thermal stability
- Strong anti- erosion ability
- Anti-stripping and wear resistance performance
- Overcome the shortcomings of poor thermal shock property of ordinary high alumina brick, poor erosion resistance to cement clinker, low refractoriness under load of phosphate brick.
Alkali- Resistance Brick Physical & Chemical Index
| Name | Common | High strength | Insulating | Arch brick |
| Al2O3 (%) ≤ | 30 | 30 | 30 | 30 |
| SiO2 (%) | 60-70 | 60-70 | 60-70 | 60-70 |
| Fe2O3 (%) ≤ | 2.0 | 2.0 | 2.0 | 2.0 |
| Bulk density (g/cm3) | ≥2.10 | ≥2.20 | ≤1.65 | ≥2.20 |
| Apparent porosity (%) ≤ | 21 | 20 | 30 | 21 |
| CCS (MPa) ≥ | 30 | 60 | 25 | 30 |
| Refractoriness Under Load 0.2 MPa(C) ≥ | 1390 | 1350 | 1310 | 1430 |
| Thermal expansion (900C %)≤ | 0.7 | 0.7 | 0.6 | 0.6 |
| Thermal conductivity (350±25C)w/m·k ≤ | 1.28 | 1.28 | 0.7 | 1.20 |
| Thermal shock resistance (1100C/water cooling),≥ | 10 | 25 | 5 | 10 |
Alkali- Resistance Brick Application
- Preheater equipment
- Metallurgy furnace
- Transfer zone of cement rotary kiln
- Burning zone of cement rotary kiln
- Other thermal equipment
Classification of Alkali-Resistance Brick
According to the different properties, alkali resistance brick can be divided into:
- ordinary alkali resistance brick,
- high strength alkali resistance brick
- heat-insulation alkali resistance brick.
- Ordinary alkali resistance brick can be divided into ordinary alkali brick and arched fire brick.
Alkali- Resistance Brick Manufacturer
RS refractory manufacturer is specialized in producing alkali resistance brick with high quality, we adopt high quality raw materials and produced by strict control, we have sold our products to many countries and good feedback, so if you have purchase plan for alkali proof bricks, please feel free to contact with us!
