Refractory ceramic balls are made of industrial alumina and refractory kaolin as the main raw materials. They are formed by isostatic pressing and then sintered at a high temperature of 1600-1990℃. They are divided into two types: ordinary type and high-aluminum type. They have the characteristics of high temperature resistance, thermal shock resistance (rapid cooling and heating cycles>100 times without cracks) and chemical corrosion resistance (pH1-14). The compressive strength is ≥50MPa and the bulk density is 1.6-2.2g/cm³. The design of the surface opening rate of 30-45%[[5()]] strengthens the heat storage body and airflow. The heat exchange efficiency is improved, and the gas utilization rate is increased by 40% in the hot blast furnace of the steel industry, and the flue gas emission temperature is reduced from 800℃ to 130℃; when used as a catalyst support layer in the fertilizer industry, it can withstand 4.0MPa high pressure and 450℃ hydrogen sulfide corrosion, and the pressure drop in the chemical converter is reduced by 35%.
Features
High compressive strength: The refractory ceramic ball has a special shape, which can maintain a stable volume under high pressure and disperse the pressure to every part of the sphere, so it can withstand the high pressure in industrial equipment.
Good chemical corrosion resistance: Good chemical corrosion resistance, high aluminum balls, corundum balls, mullite balls are resistant to acid and alkali corrosion, silicon balls are resistant to acid and alkali corrosion, and magnesium balls are resistant to alkali corrosion.
Good refractory: High temperature resistance can reach above 1710℃, the volume remains stable, and heat exchange can be completed quickly when used in high-temperature equipment.
Long service life: Easy to clean, with both compressive strength and chemical corrosion resistance, reusable, greatly reducing economic costs.
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