Silicon oxide series high-temperature infrared radiation coating and preparation method thereof

Abstract

The invention relates to a silicon oxide series high-temperature infrared radiation coating and a preparation method thereof. The infrared radiation coating for a high-temperature furnace lining comprises the following components in percentage by weight: 5 to 15 percent of Fe2O3, 10 to 20 percent of Al2O3, 5 to 10 percent of MgO, 5 to 10 percent of Cr2O3 and the balance of micro silicon powder. The preparation method is characterized in that the micro silicon powder is applied in the high-temperature infrared radiation coating. The preparation method comprises the following steps of: adding metal oxides such as Fe2O3, Al2O3, MgO, Cr2O3 and the like into the micro silicon powder, roasting the mixed components for 1 to 5 hours at the temperature of between 1,200 and 1,500 DEG C, and crushing and grinding, wherein the sieved powder of 80 meshes can be used for preparing an infrared coating raw material with high radiance at a high temperature. The silicon oxide series high-temperature infrared radiation coating can be applied to a high-temperature environment of more than 1,200 DEG C; the radiance of the coating exceeds 0.9; and the coating has good thermal shock resistance and good thermal matching performance with a furnace lining material, reaches international standard requirements, and can be applied in the industries of metallurgy, chemical industry, machinery, building materials and the like.

Description

technical field [0001] The invention relates to a silicon oxide-based high-temperature infrared radiation coating and a preparation method thereof, which is suitable for lining of industrial furnaces and kilns to achieve the purpose of saving energy and reducing consumption. technical background [0002] Energy is the main material basis for the survival and development of human society. With the continuous development of society, the demand for energy is also increasing. Therefore, the rational development and utilization of energy has become particularly important. However, my country is a large industrial energy consumer, and the energy consumption of industrial enterprises accounts for 60% to 70% of the total energy consumption in the country, while the proportion of this aspect in western countries only accounts for 1 / 3. energy consumption. Among them, the energy consumption of industrial furnaces accounts for 60% of the total industrial energy consumption, accounting f...

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Problems solved by technology

[0005] The purpose of the present invention is to provide a new high-temperature infrared radiation coating and its preparation method. The present invention adopts the mixture of microsilica powder and various metal oxides as the raw material for preparing high temperature infrared radiation coating. Comprehensive utilization explores new ways, develops new application markets and prospects; and explores new processes to solve the current application drawbacks of infrared radiation coatings in high-temperature furnaces, so as to improve the current situation of high energy consumption and heavy pollution in my country's industrial furnaces

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