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Al2o3-sic -C refractory castable is widely used in large and medium-sized blast furnace ditch.in order to improve the performance of medium temperature, borax and other sinter are added to increase the primary iron flux.In the middle and small blast furnace groove, also use this material pouring, also useful material with the same material, the binder changed into phenolic resin, middle temperature asphalt powder and other organic binder, ramming construction, no baking can be used.The application of artesian refractory castable in the blast furnace discharging ditch has been very popular in recent years.For example, in the 3200m3 and 2500m3 blast furnace ditch trial, iron flow capacity of more than 100,000 tons, corrosion rate is about 1.36mm/ KTP.
The properties and materials composition of artesient refractory castable used in iron ditch are as follows: no. 1, 2, 5, fused corundum used as refractory aggregate, fused white corundum, 97 silicon carbide, spherical asphalt or medium-temperature asphalt powder, calcined aluminum oxide powder and silica fume used as refractory powder.No. 3 and 4 use fused white corundum as refractory aggregate, other materials are the same as above materials.The binder USES CA70 cement and adds compound water reducer.In order to quickly bake the iron trench lining, in order to meet the needs of production, in the flow of refractory castable, generally add metal aluminum powder and anti-bursting fiber and other explosion-proof agent or quick-drying agent.The material can be baked in 24 hours and put into normal use, it is also known as fast dry refractory castable.
As can be seen from the table, the flow value of artesia refractory castable in the iron ditch is between 180 and 240mm, which can completely achieve artesia molding, exhaust and densification, and other performance indicators, similar to the same material vibration refractory castable, so it has better use effect.
Remarks: the above castable information is about the material composition and performance of artesia refractory castable used in iron ditch, which is professionally arranged and provided by zibo yuneng kiln technology co., LTD.Please contact us for detailed information or consultation on refractory castable prices
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