Silica insulation brick is also called lightweight silica brick, it is an insulation refractory material with a SiO2 of not less than 91%. Silica insulation brick is a kind of lightweight insulation material with excellent performance. Lightweight silica bricks use fine ore as raw material and add coke, wood chips, and other combustible substances to form a porous structure. The RUL of silicon insulation bricks is above 1620℃.
| Item/Grade | GGR-1.00 | GGR-1.10 | GGR-1.15 | GGR-1.20 | |
|---|---|---|---|---|---|
| ω (SiO2) ≥/% | 91 | 91 | 91 | 91 | |
| Bulk Density ≥/(g/cm³) | 1.00 | 1.10 | 1.15 | 1.20 | |
| Cold Crushing Strength ≥/MPa | 2.0 | 3.0 | 5.0 | 5.0 | |
| Permanent Linear Change On Reheating ≤/℃ | 1500℃, 2h | / | / | 0.5 | 0.5 |
| 1450℃, 2h | 0.5 | 0.5 | / | / | |
| 0.1MPa Refractoriness Underload ≥/℃ | 1400 | 1420 | 1500 | 1520 | |
| Thermal Conductivity Coefficient ≤/[W/(m·K)] (Average Temperature 350±10℃) | 0.55 | 0.60 | 0.65 | 0.70 | |
Silicon insulation bricks have low thermal conductivity, which can effectively isolate the heat conduction between high temperature and low temperature, reduce energy loss and have excellent insulation performance. In a high temperature environment, silicon insulation bricks can maintain their good insulation properties and are not prone to heat leakage.
Silicon insulation bricks have good thermal shock resistance and can withstand severe temperature changes in high temperature environments without deformation and damage. This excellent performance can make the application of silicon insulation bricks for a long time.
Because silicon insulation bricks are acidic, they can maintain their stability and integrity in strong acid environments. Its use can prevent corrosion and damage on the surface of the equipment and is widely used in acidic environments.
Silicon insulation brick is an inorganic non-metallic raw material that does not contain harmful substances. Natural and harmless ores and materials are used, which can effectively reduce energy consumption and carbon dioxide emissions during the calcination process.
The excellent performance of silica insulation bricks is widely used in metallurgy, electric power, glass, and other industries;
It can be used in smelting furnaces, smelting furnaces, rotary furnaces, heat shields, pipe insulation, pyrometallurgical electrolytic cells, smelting furnaces, etc.
It can be used for glass melting furnaces, quenching furnaces, glass kilns, glass heat shields, etc.
It also can be used in blast furnaces, ironmaking furnaces, converters, insulation layers, and heating furnaces of heat-insulated masonry.