2026-05-21 In the new dry cement production process, the rotary kiln is the core thermal equipment, and the transition zone of the rotary kiln in the cement industry is located between the firing zone and the decomposition zone, with a temperature range of approximately 1100°C-1300°C. This area not only bears high-temperature thermal stress, but also faces chemical erosion from volatile components such as alkali, sulfur, and chlorine, as well as mechanical stress caused by cylinder deformation. With the popularization of collaborative disposal of waste (such as domestic waste, hazardous waste, tires, etc.) in the cement industry, the working conditions in the transition zone have become increasingly harsh, alkali-sulfur corrosion has intensified, and the life of traditional refractory materials has been significantly shortened. Therefore, the selection and matching of refractory materials in the transition zone of rotary kilns in the cement industry has become a key link affecting the kiln operation rate and overall cost. Refractory materials used in the transition zone of rotary kilns in the cement industry generally face three core pain points: First, alkali-sulfur corrosion causes structural spalling. 2. Compound damage caused by thermal shock and mechanical stress. Third, the kiln skin hanging ability is weak and the kiln skin is unstable. These three pain points overlap each other, making the transition zone of the rotary kiln in the cement industry the 'short board' in the life of the entire rotary kiln, seriously restricting the continuous operation cycle of the production line. In response to the above pain points, Shengyuan Refractories launched a special magnesia-chrome brick solution for the transition zone of rotary kilns in the cement industry, providing full-stack support around material formula optimization, structural design and construction support. If you are facing problems such as short service life of the transition zone, frequent red kiln occurrences,
