A high-strength nano-ceramic fiber anti-radiation heat insulation board and its preparation method

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 invention relates to a high-strength nano-ceramic fiber anti-radiation heat insulation board, which belongs to the technical field of refractory materials. Background technique [0002] Industrial kilns are the main energy-consuming equipment in industrial production. The annual energy consumption is huge, mainly in the thermal processing process of metallurgy, building materials, refractory materials, ceramics, glass, chemical and electromechanical enterprises. The thermal efficiency of various industrial furnaces is very low, and the heat loss is very large. The energy consumption of industrial kilns accounts for 40-70% of the total energy consumption, and the heat loss through the furnace body accounts for about 15-45% of the total heat supply. Therefore, in this era of energy conservation, there is an urgent need for a high-quality thermal insulation refractory material to achieve the purpose of reducing heat loss and saving energy. [0003] ...

AI Technical Summary

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.

Images