Silica-mullite brick for cement kilns

Silica-mullite brick is fired bricks composed of mullite (3Al2O3.2SiO2) and silicon carbide (SiC) as the main minerals. Its characteristic is that it has the high-temperature resistance of mullite and the wear resistance, corrosion resistance, and good thermal conductivity of silicon carbide.

Silica-mullite brick helps achieve a win-win situation of environmental protection and energy efficiency

In the past few years, environmental protection has become the focus of attention in all walks of life. The application of silica molybdenum bricks lies in their excellent fire resistance, relatively low energy consumption, and environmental friendliness during manufacturing. This advantage makes cement manufacturers prefer silica molybdenum bricks when choosing refractory materials, thus achieving the dual goals of environmental protection and energy efficiency.

Characteristics of silicon mullite brick

Silicon mullite bricks are suitable for the transition zone, preheating zone, tertiary air duct, five-stage preheater, and lime kiln discharge chute of cement rotary kiln.

Comparison between silicon mullite brick and magnesia-alumina spinel

Silicon mullite bricks are suitable for the transition zone of cement kilns as well as magnesia-alumina spinel bricks. Compared with magnesia-alumina spinel bricks, they have a higher cost performance.
Compared with magnesia-alumina spinel bricks, Silica-mullite bricks have the advantages of low thermal conductivity, good thermal shock stability, and high-cost performance; magnesia-alumina spinel bricks have the advantages of stronger corrosion resistance than silico-alumina spinel bricks. The disadvantage of high thermal conductivity is that magnesia-alumina spinel bricks are better resistant to alkali and sulfur erosion in system waste cement rotary kilns. Kaya nga, in large-scale rotary kilns, magnesia-alumina spinel bricks are still mostly used due to safety factors. Carry out masonry.

Comparison of silicon mullite refractory brick and silicon mullite red bricks

Silicon mullite red bricks are denser and have better compressive strength, corrosion resistance, and longer service life than silicon mullite refractory bricks. Used in the transition zone of large cement rotary kilns.