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Product introduction of acid resistant castable
As for refractory fixtures, fire resistant cast iron is a mixture of refractory fixtures and does not require any cooking process to be used directly in the plant. The price of acid-resistant ration is low compared to that of resistant organic materials.
Features of acid resistant castable
The characteristics of acid resistant castables are low volumetric density, fast solidification, high operating temperature, improved pressure resistance as a function of temperature and acidity, poor thermal conductivity and weak swelling coefficient.
Parameters of acid resistant castable
| Index | NS-1.6 | NS-1.8 | NS-2.0 |
| SiO2(%)≥ | 45 | 48 | 52 |
| Bulk Density (g/cm3)≥ | 1.6 | 1.8 | 2 |
| Cold Crushing Strength (MPa) ≥ | 5 | 8 | 10 |
| Acid resistance (%)≥ | 95 | 95 | 95 |
| Thermal Conductivity(350±25℃,W/m·k)≤ | 0.5 | 0.55 | 0.6 |
| Application (℃) | 800 | 900 | 1000 |
Application of acid resistant castable
Acid-resistant castables are widely used in industrial furnaces and kilns such as metallurgical industry, petroleum, chemical industry, building materials, electric power and mechanical industry. Compared with other amorphous castables, acid-resistant castables have better fluidity, so it is easier to construct and easier to achieve ideal construction results. At the same time, because of the high binder and moisture, they are very prominent in fire prevention, so acid-resistant castables also have good high-temperature resistance.
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