With the further development of energy-saving technology, more and more attention has been paid to the investment of energy-saving measures. The material of masonry kiln is one of the important factors of energy saving and consumption reduction, which affects the thermal efficiency and service life of the kiln.

crystal fiber

According to the introduction of crystal fiber manufacturers, polycrystalline mullite refractory fiber (PMF) is a new type of ultra-light thermal insulation material in the world. Good heat resistance and stability, long-term use temperature can reach 1500oC, and the melting point can reach 1840oC. Its thermal conductivity is 1/6 of the traditional refractory brick, and its bulk density is only 1/25 of the traditional refractory brick. Can be widely used in industrial furnace lining insulation. It is an ideal material for energy saving, high quality and high yield of the kiln.

In China, the development of polycrystalline mullite fiber is one of the key scientific research projects during the "Sixth Five-Year Plan" period. It is produced by chemical colloid method and is a technology-intensive product. It has the characteristics of high thermal resistance and low thermal capacity, which can reduce the heat loss by 30%. For steel rolling furnace with frequent changes in steel specifications, comprehensive energy saving can reach 5-6%. For intermittent electric heating furnace, the energy saving effect is more obvious, and the energy saving rate reaches about 30%.

   crystal fiberThe manufacturer pointed out that polycrystalline mullite fiber is currently widely used in metallurgy, machinery, ceramics, electronics, petrochemical, aerospace and other fields of high-temperature industrial furnace and other thermal equipment lining insulation. In this way, it can naturally achieve the purpose of saving energy and increasing production, reducing the temperature difference in the furnace, improving product quality, reducing spare parts consumption, extending the service life of the furnace, and improving the working environment. Of course, this is mainly because the polycrystalline arable fiber is loose and porous, has the characteristics of low thermal conductivity and high blackness coefficient, coupled with its high temperature stability and good resistance to quenching and heat resistance. At present, it is widely used in the working face of high temperature furnace, and the energy saving effect is very significant. Therefore, the energy-saving effect for high-temperature furnace windows is better than ordinary refractory bricks or high-temperature coatings, and the energy saving is much greater than the heat loss. Another reason is not only the heat loss is reduced, but also the convective heat transfer from the furnace gas to the furnace wall is strengthened, so that the furnace wall obtains more heat, and then it is transferred to the material through radiation, thereby increasing the heating speed and production capacity of the material.

Crystal fiber manufacturers pointed out that the energy-saving effect for high-temperature furnace windows is better than ordinary refractory bricks or high-temperature coatings. The amount of energy saving is much greater than the heat loss, which is not only due to the reduction of heat loss. At present, the main reason is that the convective heat transfer of the furnace gas to the furnace wall is strengthened, so that the furnace wall obtains more heat, and then passes to the material through radiation, thereby improving the heating speed and production capacity of the material. Of course,crystal fiberThe manufacturer said that it is still loose, soft and elastic at high temperatures, has good thermal stability, small shrinkage at high temperatures, and low heat capacity.