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Comprehensive refractory service supplier for high-temperature industries

Cement

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Magnesia-ferrite spinel brick


The chrome-free, eco-friendly alkaline refractory products developed by Henan Ruitai are suitable for the burning zone of large and medium-sized new dry-process cement kilns, serving as the preferred protective material for key parts of the kiln.The magnesia-alumina-iron composite brick features excellent thermal stability and erosion resistance, low thermal expansion and thermal conductivity, as well as a flexible structure.

Special Castable for Kiln Hood & Coal Injection Pipe


This high-performance castable is manufactured from premium corundum and electrofused mullite, enhanced with composite ultra-fine powders and modified additives. It exhibits exceptional thermal shock stability, chemical erosion resistance, low creep rate, minimal thermal expansion, and outstanding wear resistance. The modified additives form a protective film at elevated temperatures, effectively sealing pore channels to further improve erosion and wear resistance. Simultaneously, the additives undergo thermal decomposition to form mullite, generating micro-expansion that counteracts shrinkage under high-temperature conditions, thereby significantly enhancing the castable's thermal shock stability.

Silicon Carbide Anti-coating Castable


Silicon carbide anti-skinning refractory castable is a high-performance castable primarily composed of silicon carbide, supplemented with high-efficiency water reducers and ultra-fine powder, and bound with calcium aluminate cement. It significantly reduces the frequency of skinning. This castable boasts excellent wear resistance, high strength, non-reactivity with materials, and anti-skinning properties. Silicon carbide exhibits good wear and corrosion resistance, high strength at high temperatures, high thermal conductivity, low linear expansion coefficient, good thermal shock resistance, and no reactivity with cement raw materials. The castable forms a glazed protective layer at high temperatures, preventing skinning and ringing. It is primarily used in cement kiln decomposing furnace cones, kiln tail gas chambers, preheater cones, and other applications.

High-Strength Alkali-Resistant Castable


High-strength alkali-resistant refractory castable is made from aluminum silicate and high-pressure electric porcelain as refractory aggregates and powders, formulated with aluminate cement and additives. It is a high-quality castable that can effectively resist the erosion of alkali metal oxides at high temperatures. At high temperatures, it reacts with alkali metal oxides to produce a high-viscosity liquid phase, forming a glazed protective layer. It has the characteristics of stable chemical composition, good fluidity, high strength, and strong erosion resistance. It is mainly used in the preheater system of cement kilns.