Is the high aluminum refractory balls the higher the aluminum content, the better the use effect?

The higher the aluminum content of the high-aluminum refractory balls, the less impurities it contains, the better the high temperature resistance, the better the compressive strength, and the longer the service life.

The use of high-aluminum refractory ballss is closely related to the aluminum content. The higher the aluminum content, the greater the density, the better the strength and high temperature resistance. High-alumina refractory ballss are mostly used in a 450m3 hot blast stove as a regenerator pebble, with a diameter of 50 and 60. In principle, high aluminum ballss with 65 aluminum content are used, and there are also matching diameters of 40 and 60. The high-aluminum balls with a diameter of 40 is more manual, because it is not easy to be formed on a press because of its small diameter.

The refractory ballss used in the glass kiln are filled ballss, which are all high-aluminum refractory ballss or silicon refractory ballss with a diameter of less than 30. In recent years, high-aluminum refractory ballss have basically been used with 50 diameter refractory ballss, and 60 and 50 diameters have also been used, but the ratio is not much. At present, the diameter of 50 is basically used.

The aluminum content of high-alumina refractory ballss is too low, and it is easy to stick during use and affect heat storage. Therefore, under normal circumstances, manufacturers use high-aluminum refractory ballss with an aluminum content of 65%, but if they choose high-aluminum refractory ballss with an aluminum content of more than 70%, the service life will be longer.

If it is used in the upper part of the hot blast stove, many manufacturers choose high-aluminum refractory ballss or corundum ballss with 80% aluminum content because of the high aluminum content and low porosity, high load softening temperature, high compressive strength, and good slag resistance. , The refractory balls is not easy to stick in the balls bed area, the better the use effect, the longer the service life will be.

Therefore, the higher the aluminum content of the high-aluminum refractory balls, the better the use effect and the longer the use period.