Inner liner material for industrial kiln furnace
An industrial furnace and lining technology, applied in the direction of the overall lining, can solve the problems of not increasing the heat transfer area, increasing the furnace power, not saving fuel consumption, etc., achieving good hydrophobic exhaust performance, improving overall strength, increasing Effect of heat storage function
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Embodiment 1
[0026] The method for preparing the high-emissivity coating is: the mass percentage is 15% silica sol, 10% zirconium silicate, 25% dichromium oxide, 20% manganese dioxide, 15% ferric oxide , 10% magnesium oxide and 5% rare earth are mixed and ground evenly, and then placed in a box-type high-temperature furnace at 1200 ° C for 2 hours, then poured into cold water to quench the material, and then wet ball milled in a planetary ball mill for 6 hours, adding distilled water Adjust the viscosity of the slurry to be moderate, stir for 3 hours to mix evenly, and age for 24 hours to obtain a high-emissivity coating.
Embodiment 2
[0028]The method for preparing this high-emissivity coating is: the mass percentage is 14% silica sol, 9% zirconium silicate, 24% dichromium oxide, 21% manganese dioxide, 16% ferric oxide , 11% magnesium oxide and 5% rare earth are mixed and ground evenly, and then placed in a box-type high-temperature furnace at 1200 ° C for 2 hours, then poured into cold water to quench the material, and then wet ball milled in a planetary ball mill for 6 hours, adding distilled water Adjust the viscosity of the slurry to be moderate, stir for 3 hours to mix evenly, and age for 24 hours to obtain a high-emissivity coating.
Embodiment 3
[0030] The method for preparing this high-emissivity coating is: the mass percentage is 16% silica sol, 11% zirconium silicate, 26% dichromium trioxide, 19% manganese dioxide, 14% ferric oxide , 9% magnesia and 5% rare earth are mixed and ground evenly and placed in a box-type high-temperature furnace at 1300 ° C for 2 hours, then poured into cold water to quench the material, and then wet ball milled in a planetary ball mill for 6 hours, adding distilled water Adjust the viscosity of the slurry to be moderate, stir for 3 hours to mix evenly, and age for 24 hours to obtain a high-emissivity coating.
[0031] Many high-efficiency and energy-saving prefabricated parts are installed on the furnace roof and furnace wall of the industrial furnace; the expansion of the furnace wall is greatly improved, and the heat transfer area is more than doubled; in addition, the inner wall of the cavity is coated with a high emissivity layer, so that The emissivity is between 0.92 and 0.96; the...
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