Refractory cement is not ordinary cement, but refers to a hydraulic cementitious material made from high-alumina bauxite, corundum, etc. at high temperatures with a refractoriness of not less than 1580°C. In practical applications, it is usually formulated with corresponding aggregates into castables and directly used in furnace linings, burners and other parts at 1200°C.

Mullite brick is a shaped refractory material used in high-temperature industrial kilns. Its main component is mullite. It is characterized by high temperature resistance, thermal shock resistance and corrosion resistance, and is widely used in steel, glass, ceramics and other industries. Choosing mullite bricks is essentially looking for the most 'fitting' refractory material, which must not only withstand the high temperatures in the kiln, but also withstand the erosion of slag and airflow, as well as the drastic changes in temperature rise and fall.

Shengyuan has served many high-temperature industrial enterprises such as large domestic steel groups, cement and building materials companies, and non-ferrous metal smelters in Southeast Asia. It has rich experience in high-temperature kiln material services, has a high customer repurchase rate, and has a good reputation.

Aluminum foil aluminum silicate insulation cotton is a composite insulation material formed by compounding a layer of dense metal aluminum foil on the surface of an aluminum silicate needle punched blanket (commonly known as a ceramic fiber blanket) through a special adhesive or sewing process. Its core base material, aluminum silicate needle-punched blanket, is a flexible refractory fiber product made from high-quality aluminum silicate as raw material, which is melted in a resistance furnace, blown into fibers, and acupuncture shaped.

The relationship between mullite bricks and bleached bead bricks is not about 'who replaces whom', but about each performing its own duties. Mullite bricks are the 'hard bones' for load-bearing and corrosion resistance, while floating bead bricks are the 'light cavalry' for thermal insulation and energy saving. Only by making an accurate match based on the actual working conditions of the kiln, temperature field distribution and economic budget can we achieve a win-win situation in terms of kiln life and energy consumption.

How bad is the fire mouth? Taking the cement rotary kiln as an example, the burner not only has to withstand the impact of high-temperature flames above 1700°C, but also the chemical erosion of clinker slag and the thermal shock test of rapid cooling and rapid heating. Ordinary refractory materials may crack, peel or even burn through in a few months under such working conditions, but high-quality burner castables can extend the service life by 2-3 times.