Lime Industry
The working principle of rotary kilns is the same. They are all rotating kilns. The kiln tail, kiln head, preheat zone, firing zone, and cooling zone are different. Due to the different rolling impact, friction, and erosion conditions of the burned materials, the refractory lining selected is The materials are also different.
The operation cycle of various types of lime rotary kilns mainly depends on the quality of the refractory materials used in the kiln, especially the quality of the wear-resistant materials used in the firing zone and high temperature zone of the rotary kiln. In order to ensure the long-term safe operation of the kiln, shorten the unplanned downtime and maintenance time of the kiln, and improve the operation rate of the kiln, it is necessary to study the requirements of the kiln for refractory materials and the performance and quality of the refractory materials.
The refractory materials in the firing zone and transition zone of large kilns need to withstand high thermal and production loads. According to statistics on some large and medium-sized suspended preheating kilns, it is found that the kiln cross-section heat load and production load of large kilns are more than twice as high as that of small and medium-sized kilns. Therefore, the life of the refractory material to be burned is basically inversely proportional to the square of the kiln diameter.
Product/Part Name
| PRODUCT NAM / CHARACTERISTICS |
MAXIMUM TEMPERATURE |
Bulk Density | Chemical Composition |
| Magnesia-alumina spinel bricks dense tissue structure flexibility corrosion |
1700 | 2.97 | MgO≥86 Fe2030.7 Al20310-12 |
| Silica mullite brick strong peeling resistance excellent thermal shock resistance |
1650 | 2.60 | Al20363 SiC+SiO2>30 |
| High alumina bricks Dense structure Refractoriness under load high |
1510 | 2.5 | Al₂0370 Fe2032.0 |
| High-strength wear-resistant castable High wear resistance,Anti-scour |
1500℃ | 2.5 | Al203>70 CaO≤4 |
| Corundum-mullite refractory castable Medium temperature high strength Excellent thermal shock resistance |
1790 | 2.9 | Al203>85 |
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