High-strength nano-ceramic fiber anti-radiation heat insulating plate and preparation method of high-strength nano-ceramic fiber anti-radiation heat insulating plate

Abstract

The invention provides a high-strength nano-ceramic fiber anti-radiation heat insulating plate and a preparation method of the high-strength nano-ceramic fiber anti-radiation heat insulating plate. A plurality of ceramic fiber layers containing ceramic fibers are formed through binding agents by means of hot-pressing curing; a metal foil also can be paved between the two adjacent ceramic fiber layers so as to improve a using effect. When the high-strength nano-ceramic fiber anti-radiation heat insulating plate is used, three heat energy transfer ways of heat conduction, convective heat transfer and radiation heat transfer can be effectively prevented, a super heat insulation and heat storage performance is achieved, a heat conduction coefficient is far lower than that of the heat conduction coefficient of traditional heat insulation material, and the strength of the heat insulating plate can reach 4-6 times that of the traditional product.

Description

Technical field [0001] The present invention involves a high -strength nano ceramics fiber anti -radiation heating board, which is the field of refractory material technology. Background technique [0002] Industrial kiln is the main energy consumption equipment in industrial production. The annual energy consumption is huge. It is mainly during the heat processing process of metallurgy, building materials, refractory materials, ceramics, glass, chemical and mechanical and electrical companies.The thermal efficiency of various industrial kiln is very low, and the heat loss is very large.The energy consumption of industrial kiln accounts for 40-70%of the total energy consumption, and the heat dissipation loss of the furnace body accounts for about 15-45%of the total supply heat.Therefore, in this era of energy conservation, it is urgent to need a high -quality insulation insulation and refractory material to achieve the purpose of reducing heat loss and saving energy. [0003] At ...

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Problems solved by technology

[0003] At present, aluminum silicate refractory products are the most widely used thermal insulation and refractory materials for various kiln linings. Although aluminum silicate fiberboard has good heat insulation and high temperature resistance, it is used in some kilns It has been widely used, but this traditional aluminum silicate fiber board still has some shortcomings, such as low strength, especially under high temperature and high pressure, the refractory fiber crystal phase structure is easily destroyed into powder, resulting in the dispersion of fiber products, In turn, the insulation, heat insulation, strength and other properties of the product are reduced, and the use temperature is lowered. In addition, the application in some kilns with high temperature and high stress is limited.

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