Optimizing Wear-Resistant Ceramic Lining for Improved Sintering Drum Mixer Performance

Addressing Challenges in Sintering Drum Mixer Linings

The sintering process heavily relies on the efficiency of the drum mixer. Achieving the right granule size and optimal porosity in the mixture is pivotal for the stable operation of the sintering machine. However, issues with lining wear and material adhesion along the drum walls pose significant challenges in production. As the bonding layer thickness increases, the effective volume within the drum decreases, deteriorating the internal environment and directly impacting the homogenization and pelletizing effectiveness. Moreover, lining wear not only affects equipment longevity but can lead to shutdown incidents and, at worst, pose safety hazards during cleaning procedures.

Innovative Solutions for Lining Wear and Material Adhesion

Steel mills and research institutions have extensively studied solutions for the prevalent problems of lining wear and material adhesion in sintering drum mixers. Various methods have been proposed, including optimizing water addition methods, refining ingredient structures and mixer parameters, enhancing the internal structure of the lining and drum, altering material discharge heights, incorporating scraping and cleaning mechanisms, among others. Among these preventive measures, optimizing the lining stands out as a highly effective, operationally feasible, and cost-efficient approach. A particular steel mill witnessed a substantial reduction in lining wear and a significant extension of equipment lifespan by replacing nylon linings in the drum mixer with ceramic linings. This transformation not only reduced wear but also minimized material adhesion, ensuring stable equipment operation and consistent pelletizing performance.

Durability of Wear-Resistant Ceramic Drum Mixer Linings

The wear-resistant ceramic lining comprises high-strength alumina oxide ceramics and high-temperature-resistant rubber, unified through sulfurization. These linings are affixed to the drum walls using high-temperature-resistant organic adhesives and divided into sections with angle irons, exhibiting commendable improvements in addressing both material adhesion and lining wear.

Enhancing Mixer Efficiency and Longevity

Primarily, in addressing material adhesion, the exceptional properties of wear-resistant ceramic linings ensure a rational trajectory for the materials inside the mixer. While slight material adherence occurs on angle irons, the ceramic linings remain free of any such adhesion, further enhancing the mixer's blending and pelletizing capabilities. The surface of the ceramic tiles is dense, smooth, non-absorbent, and non-adhesive, reducing the load on equipment and diminishing the likelihood of failure in transmission components while also reducing spare part consumption. The non-adhesive nature also increases the effective diameter of the drum mixer significantly. Additionally, the high hardness and wear resistance of these ceramic linings substantially prolong their lifespan, bolstering their ability to withstand abrasion and friction, ultimately increasing operational longevity.