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Nanxiang Honeycomb Ceramic Monolith Used in Rto Rco Equipment1
Industrial Ceramic ProductsHoneycomb CeramicsMullite Honeycomb Ceramics
PingXiang Nanxiang Chemical Packing Co., Ltd.
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Product Description honeycomb ceramics mullite honeycomb ceramics Cordierite honeycomb ceramic monolith used in RTO RCOHoneycomb ceramics the HTAC technology (High Temperature Air Combustion) is a huge energy-saving and environmental efficacy of new combustion technology and it is also considered as a reliable, industry proven combustion method allowing emissions reduction, combustion process improvement, thermal field flattening and heat transfer increase in high temperature energy intensive applications. Honeycomb ceramic heat recovery media is a key component of regenerative burner, which is widely used in iron and steel, machinery, building materials, petrochemicals, nonferrous metal smelting and other industries, furnace, hot air furnace, heat treatment furnace, cracking furnace, baking, melting furnace, both in the hot furnace, oil and gas boilers, and furnaces. The technique is to make two ceramic media beds alternating endothermic exothermic by reversing device. Most common applications include: Regenerative Thermal Oxidizer (RTO), Regenerative Catalytic Oxidizer (RCO), metal casting combustor, metal melting industrial furnace, etc. Compared with other ceramic media, such as saddles or ceramic balls, which have conventionally been used in RTOs. The advantages of honeycomb monolith include a greater thermal efficiency and a lower pressure drop across the heat exchanger bed. The increase in thermal efficiency and lower pressure drop.generally results in smaller equipment design, lower capital cost and lower operating cost. Honeycomb ceramic monolith serves as a more efficient alternative for the following reasons: cutting fan load for significant energy saving (low pressure drop owing to straight channels), less volume, thin wall thickness, faster in thermal exchange. Lighter weight, so less structural support is required. Above all, High specific surface area means high conversion efficiency in converters occupying small volumes. All thesebenefit, especially larger specific surface area make honeycomb ceramic the better performance media across industries.Ceramic Honeycomb Materials:Alumina CeramicsAlumina Ceramics is the most widely used advanced ceramic material. Owing to its highly strong ionic inter-atomic bonding, alumina offers good performance in terms of chemical and thermal stability, relatively good strength, thermal and electrical insulation characteristics at a reasonable price. With a range of purities and also the relatively low cost in raw material production it ispossible to utilize alumina for wide ranging applications across a variety of different industries.Mullite CeramicsMullite occurs very rarely in nature because it only forms at high temperature, low pressure conditions, so as an industrial mineral, mullite has to be supplied by synthetic alternatives. Mullite is a strong candidate material for advanced ceramics in industrial process for its favourable thermal and mechanica properties: low thermal expansion, low thermal conductivity, excellentcreep resistance, suitable high temperature strength and outstanding stability under harsh chemical environments.Cordierite CeramicsCordierite has a superior thermal shock resistance due to their intrinsic low coefficient of thermal expansion (CET), coupled withrelatively high refractoriness and high chemical stability. Therefore, it is often used as high temperature industrialapplications, such as: heat exchangers for gas turbine engines; honeycomb-shaped catalyst carriers in automobile exhaust system. DimensionCell Number&ShapeCell Width(mm)Inner Wall(mm)Outer Wall(mm)Specific Surface Area m2/m3Void Fraction 150*150*3005*5 Square263.053.514676%13*139.32.052.531065%25*255.00.951.259070%32*323.90.81.373667%40*403.10.671.390666%43*432.80.651.396464%50*502.40.61.1110462%60*602.00.551.1129160% 100-150 Width 100-200 Height Hexagon3mm1.00.8--3.5mm1.01.2--3.6mm0.91.2--4mm1.01.2--5mm1.52--6mm1.52--6mm2.03--8mm2.53.5--10mm2.53.7--12mm4.04.0--100-150 Width 100-200 Height Circular5.01.51.8--6.02.52.8--8.02.52.8--Chemical CompositionMaterialSiO2(%)AI2O3(%)MgO(%)Fe2O3(%)K2O+Na2O+CaO+TiO+Other(%)Alumina Porcelain25-3560-70≤3.5<1≤3Dense Alumina20-3060-70<1<1<5High Performance Alumina20-3060-70<1<1<7Cordierite50-5530-358-14<1≤1.5Dense Cordierite50-5530-358-14<1<5High Performance Cordierite50-5530-358-14<1<5Mullite-cordierite40-5040-506-9<1<1.2Mullite25-3065-70≤0.5<1<1.5Zirconia Corundum20-3060-70<1<16-1085 Corundum6-1285-90≤0.5≤0.5<1.595 Corundum2-490-95≤0.5≤0.5<1Physical PerformanceMaterialSolid Density/cm3Bulk Density Kg/m3Thermal Expansion Coefficient 10-6/k(30-1000oC)Specific Heat Capacity j/kg.k(100-1000oC)Thermal Shock ResistanceMin oCSoftening Temperature oCMaximum Service Temperature oCWater Abso-rptionAlumina Porcelain2.05-2.35630-960≤5.5900-11503001550135015-20Dense Alumina2.45-2.7754-1103≤5.8950-115030015501350<5High Performance Alumina2.55-2.82784-1152≤6.0950-115030015501350<1Cordierite1.85-2.16580-778≤3.5900-11503501400120015-20Dense Cordierite2.16-2.48669-882≤3.8900-115035014001200<1High Performance Cordierite2.25-2.59765-1013≤4.0900-115035014001200<1Mullite2.1-2.41692-1158≤6.0900-11603001550135015-20Mullite-cordierite2.0-2.2615-899≤3.5900-11503501400120015-20Zirconia Corundum2.5-2.8800-1100≤6.5950-14003501650145015-2085 Corundum2.4-2.7738-1103≤7.5950-14003001700150015-2095 Corundum2.6-2.9800-1185≤8.51050-15003001780158015-20
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