- Category
-
- Product type
-
Category
Cement Rotary KilnCements
The cement rotary kiln is a rotating calcining furnace used to produce cement clinkers and serves as the core equipment in cement plants. It operates under conditions of high temperatures and extended calcination cycles, involving interactions with powdered materials, combustion gases, and a high-alkali atmosphere.
Operating Conditions and Refractory Requirements in Different Zones
| Zone | Conditions | Required Refractory Properties | Main Refractory Used |
|---|---|---|---|
| ①Preheating Zone | 800–1,000℃, contains abundant raw material powder and abrasion | Abrasion resistance, resistance to alkali salts, heat resistance | High-alumina brick, chamotte brick, high-alumina castable |
| ②Transition (Coating Detachment) Zone | 1,000–1,450℃, temperature fluctuations, alkali salt concentration | Resistance to alkali salts, resistance to structural degradation | Magnesia-spinel brick |
| ③Burning Zone | 1,450–1,600℃, high temperature, erosion by cement raw materials | Heat resistance, corrosion resistance, thermal shock resistance | Chrome-free (Magnesia-Spinel) brick |
| ④Cooling Zone | 1,200–1,450℃, temperature fluctuations, clinker abrasion | Abrasion resistance, thermal shock resistance | Magnesia-spinel brick |
Quality Table
These data are typical properties subject to reasonable variation and should not be treated as specifications.
Standard product
［Refractory brick］
| Brand | Main raw materials | Chemical composition / ％ | Bulk density | Apparent porosity % | Cold crushing strength MPa | Refractoriness under load T2 / ℃ | Refractoriness SK | Thermal spalling resistance JIS 1000℃ times-loss％ | Linear thermal expansion / ％ | Thermal conductivity / W/(m·K) | Mortar | Application | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| SiC | SiO₂ | Al₂O₃ | MgO | Fe₂O₃ | CaO | ZrO₂ | 400℃ | 1000℃ | 1200℃ | 400℃ | 800℃ | 1000℃ | ||||||||||
| NC-3S | Magnesia, Spinel | 0.3 | 7.5 | 90 | 0.3 | 0.9 | 1 | 3.07 | 13.0 | 60 | >1700 | >40 | 20times-0% | 5.8 | 4.6 | 4.3 | JT-PA-D | ③ | ||||
| PRA-NC-1 | Magnesia, Spinel | 0.5 | 11 | 86.4 | 0.5 | 1.1 | 0.5 | 3.00 | 15.5 | 60 | >1700 | >40 | 20times-0% | 6.2 | 4.6 | 4.1 | JT-PA-D | ③ | ||||
| PRA-SP-CTK | Magnesia, Spinel | 0.3 | 16.5 | 82.2 | 0.2 | 0.8 | 3.00 | 15.0 | 75 | >1700 | >40 | 20times-0% | 5.3 | 4.4 | 4.0 | JT-PA-D | ②④ | |||||
| PRA-SP-CA | Magnesia, Spinel | 0.5 | 13 | 85 | 0.5 | 1 | 2.95 | 16.0 | 70 | >1700 | >40 | 20times-0% | 5.9 | 4.3 | 3.8 | JT-PA-D | ④ | |||||
| SP-QV100 | Magnesia, Spinel | 0.5 | 13 | 84.8 | 0.3 | 0.9 | 0.5 | 2.95 | 16.5 | 57 | >1700 | >40 | 20times-0% | 1.00 | 1.20 | 4.1 | 4.0 | JT-PA-D | ② | |||
| PRA-SP-LPU | Magnesia, Spinel | 0.5 | 10.5 | 87.4 | 0.5 | 1.1 | 2.94 | 16.0 | 75 | >1700 | >40 | 20times-0% | 5.9 | 4.3 | 3.8 | JT-PA-D | ② | |||||
| MULSIC-30 | Mullite, Silicon carbide | 30 | 25 | 37 | 1.5 | 2.50 | 17.0 | 70 | 1430 | 10times-0% | 0.20 | 0.56 | JT-36-D | ① | ||||||||
| CZ-35CK | Alumina, Fire clay | 43 | 52 | 1 | 2 | 2.30 | 20.0 | 49 | 1390 | 20times-0% | 0.40 | JT-36-D | ① | |||||||||
| ARW-ME | Alumina, Fire clay | 56 | 38 | 1.5 | 1.5 | 2.20 | 17.0 | 45 | 20times-0% | 0.43 | JT-34-D | ① | ||||||||||
Generic product［Mortar］
Air-set of YOTAI
| Brand | Main raw materials | Chemical composition / ％ | Mortar | ||
|---|---|---|---|---|---|
| SiO₂ | Al₂O₃ | Fe₂O₃ | |||
| JT-34-D | Fire clay | 55 | 40 | 1.5 | - |
- Contact us
-
Please feel free to contact us with any questions
about our product features, pricing, or quotations.
