Bricks with High Thermal Resistance

Fused aluminum corundum refractory material and preparation method for achieving stable and excellent thermal shock resistance in glass melting furnaces. The material comprises a synthetic chromium corundum powder with a specific composition ratio of chromium oxide and alumina, combined with fused aluminum mullite powder and first chromium oxide powder in a controlled ratio. The resulting refractory material exhibits superior thermal shock resistance while maintaining excellent corrosion resistance, making it suitable for applications requiring both high-temperature performance and durability.

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Chromium aluminum magnesium aluminum refractory brick for water-coal slurry gasifiers with enhanced resistance to acidic coal slag penetration. The brick contains a magnesium chromium spinel matrix interwoven with chromium oxide particles, where aluminum is present in both oxide and spinel forms. This unique composition provides improved thermal shock resistance, densification, and acid resistance through the spinel matrix's expansion coefficient mismatch. The brick's matrix structure combines solid-solution alumina and spinel phases, resulting in a dense and durable refractory material.

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Magnesia-alumina castable and refractory block that combines high corrosion resistance with improved heat spalling resistance. The castable contains 60-90% magnesia, 10-35% alumina, and 5% silica, with a specific composition optimized for enhanced corrosion resistance while maintaining thermal expansion properties. The castable formulation includes a combination of coarse alumina particles (3-8 mm) and ultrafine alumina particles (10 μm or less) to balance thermal expansion and erosion resistance. This composition enables both corrosion protection and improved heat spalling resistance compared to conventional magnesia-alumina castables.

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High-temperature-resistant and corrosion-resistant refractory brick with integrated reinforcement for improved kiln performance. The brick features a cavity with arc-shaped grooves on both inner walls, containing transverse reinforcing plates that connect vertically. The brick body is reinforced with additional vertical plates, which divide the cavity into multiple filling cavities. A convex slide block is integrated into the grooves, allowing the brick to maintain structural integrity while accommodating the reinforcing plates. This design enables tight kiln connections through the reinforced cavity structure, while maintaining the brick's high-temperature resistance and corrosion resistance.

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Composition and method for improving refractory brick performance in high-temperature applications. The composition comprises a periclase-coexisting sintered spinel with a periclase phase content of 0.1 to 0.5% by mass, combined with a hercynite sintering aid. The composition enhances both digestion resistance and high-temperature durability in refractory bricks used in cement rotary kilns and steel furnaces.

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Coarse ceramic refractory product comprising a crystalline yttria-containing mixed oxide phase with cubic modification of the ternary system Al2O3-Y2O3-ZrO2 in the bond matrix, exhibiting enhanced resistance to reducing hot gases containing steam and high creep resistance at elevated temperatures. The product contains at least 40 wt.-% AI2O3, 2.0-57 wt.-% Y2O3, and ZrC>2, with the bond matrix comprising yttria-containing crystalline mixed oxide with cubic modification of the ternary system.

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Burn pit flare tip structures for containing flares in refineries, featuring a reinforced refractory brick wall with a specially designed wing structure. The wall incorporates a base planar orientation with a vertical or slightly inclined orientation, featuring a reinforced wing wall section that provides additional structural support. The wing section is constructed from high-alumina refractory bricks with enhanced thermal shock resistance, thermal conductivity, and mechanical properties compared to conventional refractory brick applications. The wing section is integrated into the base planar wall, creating a robust and thermally stable containment structure for the flare tip.

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A refractory brick material comprising a combination of hard clay, high alumina clinker, sintered mullite, fused mullite, brown corundum, soft clay, silica powder, Alumina powder, acid aluminum phosphate, and their specific proportions. The material combines the necessary refractory properties with improved dust control and adhesion through the incorporation of specific additives.

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A refractory material for high-temperature furnaces and incinerators that enhances durability through the incorporation of molybdenum carbon silicon (MCS) composite. The material combines the high-temperature strength of molybdenum with the thermal stability of carbon and silicon, providing improved resistance to molten droplet formation and thermal shock. This composition enables longer furnace life, reduced maintenance, and increased production efficiency compared to conventional clay refractory bricks.

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High-temperature refractory material for preparing refractory bricks with enhanced thermal resistance above 2300°C. The material composition combines calcium oxide, silicon dioxide, aluminum oxide, iron oxide, titanium dioxide, and chromium oxide to create a refractory brick material with superior thermal stability in high-temperature applications. The material exhibits enhanced chemical resistance and thermal conductivity compared to conventional refractory materials, making it suitable for high-temperature furnaces and equipment where traditional refractory materials fail.

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High-strength refractory brick and preparation method for furnaces, enabling longer-lasting refractory components. The brick achieves superior thermal shock resistance through a novel composition that combines high alumina content with enhanced mechanical properties. The preparation method involves specific processing steps to create the refractory brick, including controlled firing and cooling processes. This approach enables refractory bricks with improved strength and durability, particularly in high-temperature applications where thermal shock resistance is critical.

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Fire-resistant ceramic base for treating high-temperature melts in a connection region with at least one wall of the container. The base comprises a lower layer made of a prefabricated permanent lining comprising integral fire blocks, with the permanent lining having a surface adjacent to the wear liner that is inclined by at least 2° to 25° from the horizontal surface. The wear-resistant lining is composed of at least 60% solid refractory ceramic bricks with at least 70% having a rectangular or polygonal profile in plan view, and the layer is laid in a single, continuous manner. The permanent lining and wear-resistant lining have at least one common vent for the high-temperature melt.

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A high-temperature furnace wall composite lining with enhanced heat radiation and thermal management capabilities. The lining comprises a ceramic fiber wool substrate, a black metal coating layer, and a refractory brick or ceramic fiber wool backing. The black metal coating layer provides superior heat radiation performance while the ceramic fiber wool substrate enhances thermal insulation. The composite lining is fabricated through a simple, cost-effective process that eliminates the need for complex bonding operations, enabling rapid production and deployment in high-temperature applications.

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Chromium oxide refractory material with enhanced thermal shock resistance, comprising at least 80 wt.% Cr, with specific Al2O3 content, SiO2 content, and TiO2 content. The material achieves superior thermal shock resistance through optimized composition and processing conditions, with specific mechanical properties including a MOR of at least 37 MPa and a specific RO of at least 0.5.

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Refractory brick with enhanced high-temperature resistance and corrosion protection. The brick combines superior thermal stability with improved chemical resistance against both acids and bases, thereby extending its lifespan and performance in high-temperature applications.

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Flow-resistant steel brick with enhanced thermal shock resistance and improved corrosion resistance. The brick comprises a silicon oxide sintered layer, followed by a magnesium aluminum spinel layer, a refractory magnesium carbonated cast layer, an amorphous refractory layer, and a magnesium aluminate spinel layer. This multi-layered structure provides superior thermal shock resistance while maintaining excellent corrosion resistance and spall resistance.

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Composite insulation lining for high-temperature industrial applications, particularly for kilns, that combines alumina hollow spheres with a stainless steel shell. The lining comprises 60% alumina spheres, 20% fused alumina, 4% mullite, 6% P alumina, and 10% binder, with a stainless steel shell providing excellent acid-base resistance and thermal shock durability. The stainless steel shell anchors the alumina spheres through anchor nails, ensuring reliable performance across temperature fluctuations. The combination offers superior thermal insulation, acid resistance, and long-term durability compared to conventional alumina-based insulation materials.

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A composite refractory brick with enhanced thermal insulation properties that maintains mechanical integrity. The brick consists of a zirconia corundum base layer, an alumina intermediate layer, and a zirconia corundum top layer. The combination provides superior thermal insulation performance while maintaining mechanical strength, making it suitable for industrial furnaces where both thermal efficiency and durability are critical.

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High-zirconia electrofusion casting refractory material with enhanced resistance to zircon crystal formation and glass melting in furnaces, particularly suitable for alkali-free glass applications. The material exhibits low residual volume expansion coefficient after thermal cycling, enabling stable operation in glass furnaces without cracking. Its unique composition combines a small amount of alkali metal oxide with specific additives that suppress zircon crystal growth while maintaining high electrical resistance. This refractory material is particularly valuable for applications requiring reliable operation in glass melting furnaces, such as liquid crystal panel glass.

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High zirconia fused cast refractory for glass melting furnaces that suppresses zircon crystal formation through controlled glass phase composition. The refractory contains 85-95% zirconia, 0.4-2.5% alumina, 3.5-10% silicon dioxide, 0.05-1% sodium oxide, 0.02-1% phosphorus pentoxide, 0.05-1% magnesium oxide, 0.01-0.2% calcium oxide, and 0.3-3% strontium oxide. The composition includes 0.3-3% barium oxide and 0.3-3% strontium oxide. The refractory exhibits excellent heat stability, minimal zircon crystal formation, and resistance to thermal shock, making it suitable for industrial applications where high zirconia content is required.

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CDQ mullite brick and preparation method for refractory applications, particularly in CDQ quenching processes. The mullite brick achieves superior performance in CDQ furnaces by combining high thermal shock resistance with excellent abrasion resistance and wear characteristics. The preparation method involves optimizing the mullite composition and processing conditions to achieve the desired combination of properties.

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High-specific composite lining brick for rotary kilns that combines superior refractoriness, high-temperature load deformation, and thermal shock resistance properties. The brick comprises a refractory composition with super companion, Guangxi Pak Nai, andalusite, and kyanite, along with specific additives like oxidative companion and iron oxide. The composition achieves high temperature stability, load deformation capacity, and thermal shock resistance while maintaining excellent refractoriness and abrasion resistance. The brick's unique composition enables effective protection against high-temperature phenomena in rotary kiln applications.

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Refractory bricks for high-temperature furnaces that combine excellent creep resistance and thermal shock resistance properties. The bricks contain a balanced mix of refractory materials, including andalusite, sillimanite, and corundum, with specific proportions optimized for high-temperature applications. The composition includes a binder that enhances mechanical bonding between the refractory components. The resulting bricks exhibit superior performance characteristics, including reduced porosity and enhanced bulk density, compared to conventional refractory materials.

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A refractory ceramic lining brick with a unique structural design that reduces thermal expansion stress during high-temperature applications. The brick features strategically positioned holes that accommodate insertion of rods for mechanical fixation, allowing the brick to maintain its orientation without tilting. This design enables the brick to maintain its thermal expansion characteristics while ensuring consistent contact with the outer casing, thereby preventing thermal stresses and cracking in the lining.

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Boiler refractory with enhanced thermal insulation properties through a refractory block composition of 35% mullite, 28% quartz sand, 12% clay, 7% sillimanite, 7% zirconia, and 5% ceramic powder. The composition includes 7% drift beads to improve thermal shock resistance. The refractory block provides superior thermal insulation, chemical resistance, and durability compared to conventional clay bricks, enabling safe operation at high temperatures.

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A furnace wall for high-temperature gasification applications, particularly in coal gasification and coal bed gasification processes. The furnace wall comprises a refractory material with a high thermal conductivity and resistance to chemical attack, designed to operate at elevated temperatures (typically above 1000°C) while maintaining structural integrity. The refractory material incorporates a combination of refractory ceramic fibers, refractory metal powders, and other refractory materials to achieve optimal thermal resistance and durability.

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A high-temperature refractory material with improved properties for industrial applications. The material combines advanced refractoriness, corrosion resistance, and long lifespan at elevated temperatures. The composition comprises 24% silica, 5% lanthanum oxide, 6% zirconium oxide, 9% silicon carbide, 9% aluminum nitride, and 15% calcium carbonate, with 18% of these components being combined with silica. This unique blend provides exceptional performance across a broad temperature range from 2400°C to 2600°C.

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High-performance refractory bricks for kiln furniture and structural applications that combine the benefits of mullite and cordierite compositions. The bricks contain 30-50% crystalline phase material and 50-70% binder, with an optimal ratio of 40-50% crystalline phase material to binder. The composition includes microcrystalline nucleating agents to enhance microstructural control and improve thermal stability. These bricks exhibit superior thermal shock resistance, high refractoriness, low thermal expansion, and excellent durability compared to conventional refractory materials.

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A refractory composition for furnace linings that combines high chromium content with specific spinel compositions to achieve improved thermal stability and resistance to corrosive environments. The composition contains a high concentration of alumina-magnesium spinel (29.5 wt.%) and a controlled amount of periclase, which enables the formation of a dense, crack-free structure with reduced permeability. The spinel composition ensures optimal grain packing and microcrack formation characteristics, while the periclase grain size is carefully controlled to prevent excessive grain growth and shrinkage during sintering. This composition provides enhanced thermal resistance and reduced gas permeability compared to conventional formulations with high chromium content.

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A refractory lining material for gasification plants that combines excellent thermal shock resistance and corrosion resistance properties. The material comprises a ceramic composition comprising between 75% to 100% CaZrO3 and 0% to 25% ZrO2, where the CaZrO3 component is dissolved. This composition exhibits superior performance under reducing conditions in gasification systems, particularly in the presence of brown coal slag, compared to conventional refractory materials. The material demonstrates enhanced thermal shock resistance and corrosion resistance under gasification conditions, making it suitable for gasifier applications where high-temperature and pressure conditions are encountered.

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A ceramic base for melt treatment in high-temperature furnaces that minimizes material loss while maintaining melt quality. The base comprises a permanent refractory lining with a wear-resistant surface coating, where the coating features a three-dimensional pattern of solid clay bricks. The permanent lining provides a consistent interface with the melt, while the wear-resistant coating directs melt flow through the base. The base design incorporates a sloped wear surface near the discharge opening to enhance melt flow direction, and the wear-resistant coating achieves a minimum of 60% solid brick content.

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A new refractory material for cement kilns, specifically for red zircon-mullite bricks, that addresses the traditional limitations of dry rotary kiln technology. The material combines yttrium oxide micro-particles with high-temperature synthesis porosity, achieving a brick with improved thermal shock resistance and durability compared to conventional zircon-mullite bricks. The micro-particles enhance the brick's strength and thermal stability through their unique microstructural properties, while the high-temperature synthesis porosity provides enhanced thermal shock resistance.

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A refractory brick with integrated protective coating that prevents damage to the underlying ceramic structure. The brick features a dual-layered coating system, where the outer layer provides mechanical protection and the inner layer offers chemical resistance against corrosive environments. This dual-layer approach ensures both mechanical integrity and chemical durability of the refractory brick, enabling its safe use in high-temperature applications.

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A refractory lining material for heat-resistant applications, particularly in induction furnaces for smelting iron-aluminum alloys, that achieves enhanced strength, densification, and resistance to slag-metal interaction at elevated temperatures. The material combines high-strength corundum-based pellets with specific TiO2 and electrolyzed corundum compositions, along with optimized periclase and alumina mixtures. The material's unique blend of fine-grained periclase, fine-grained alumina, and specific additives provides superior densification and slag-metal resistance at temperatures up to 1700°C.

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