Over the years, the rapid development of China's cement industry has led to a substantial emphasis on wear-resistant castables as lining materials for cement kilns. The new dry-process cement kilns utilize refractory materials in various sections. Different sections of cement kilns and systems have varying requirements for refractories, and appropriate types must be selected during planning and matching.

The wear-resistant refractory castable is primarily used at the front end of cement kiln burners due to the constant abrasion it endures within the kiln, especially the more severe abrasion at the lower section. This is exacerbated by the dust-laden air stream inside the kiln, which can cause intense erosion and wear on the burner front, thereby reducing the lifespan of the equipment. At the top of the kiln head hood near the third air duct, the dust-laden air stream causes relatively severe abrasion. The front top of the grate cooler is subjected not only to the rebound heat shock from the clinker but also to relatively high and fluctuating working temperatures, leading to long-term damage from the high-temperature clinker falling through the kiln mouth, with both mechanical and thermal stresses. Additionally, the bend in the third air duct is prone to wear due to the abrasion from the dust-laden air stream. Therefore, it is advisable to use materials with good wear and refractory properties in these areas, and castable refractory materials are recommended for ease of construction.

In the wear-resistant castable market, corundum wear-resistant castable is one of the highly praised products. We supply corundum wear-resistant castable and introduce this product to you. Corundum wear-resistant castable is a refractory castable prepared with corundum as the aggregate and powder, along with some binder. It boasts higher mechanical strength and wear resistance than high-alumina refractory castable and mullite refractory castable, although it has slightly lower thermal shock resistance. It is primarily used as lining material for various furnaces such as boilers, blast furnaces, hot blast stoves, heating furnaces, and ceramic kilns.

High-temperature refractory wear-resistant castable is a new type of non-shape refractory material developed in recent years. Compared with high-temperature refractory castable, it features high strength, high density, and low impurities, and boasts superior wear and erosion resistance. It is widely used as a wear-resistant lining in various kilns and circulating fluidized bed boiler equipment.
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