Ceramic fiber blanket has obvious advantages over traditional refractory materials. The following are its main characteristics and comparative analysis:

I. Thermal insulation performance

Ceramic fiber blanket has very low thermal conductivity and excellent thermal insulation performance. At 800℃, the temperature difference between the hot surface and the cold surface of 80 bulk density ceramic fiber blanket can reach 650℃, and the heat flux is stable at 220 W/m. Compared with traditional refractory brick materials, the heat loss is reduced by 62% under the same working conditions, and the energy saving effect is remarkable. In addition, the thermal insulation performance of ceramic fiber blanket enables it to maintain low thermal conductivity in high temperature environment, which is obviously superior to traditional refractory materials.

II. High temperature resistance

The temperature range of ceramic fiber blanket is wide, which can reach above 1000℃ for a long time and 1300℃ for a short time. The use temperature of zirconium-containing ceramic fiber blanket can even reach 1350℃. In contrast, traditional refractory materials (such as refractory bricks) usually have low service temperature and are prone to thermal expansion and deformation in high temperature environment.

III. Lightweight and convenient construction

Ceramic fiber blanket has low density and light weight, which is convenient for installation and transportation. Its bulk density is generally between 90-220kg/m, which is only 1/5-1/3 of that of lightweight refractory bricks. This lightweight feature not only reduces the structural load of the equipment, but also reduces the construction difficulty and cost.

IV. Thermal shock resistance

Ceramic fiber blanket has good thermal shock resistance, can adapt to the rapid change of temperature, and is not easy to crack or peel off due to the rapid change of temperature. This characteristic makes it especially suitable for industrial furnaces and other equipment that work intermittently.

V. Chemical stability

Ceramic fiber blanket has excellent chemical stability and can resist the corrosion of most chemicals such as acid, alkali and salt. Except for strong acid and alkali, ceramic fiber blanket is not easy to react with other substances at high temperature. In contrast, traditional refractories are easy to be damaged in chemical corrosive environment.

VI. Service life

Ceramic fiber blanket has a long service life and does not need to be replaced frequently, which reduces the maintenance cost and downtime of equipment. Its good tensile strength and toughness enable it to run stably for a long time under normal use conditions.

VII. Environmental protection and energy conservation

The production process of ceramic fiber blanket is relatively environmentally friendly and will not produce a lot of pollutants. At the same time, its excellent thermal insulation performance can reduce energy consumption and energy cost of enterprises, which meets the requirements of modern industry for environmental protection and energy saving.

VIII. Economy

Although the initial investment of ceramic fiber blanket may be high, it can significantly reduce energy consumption (20%-40%) because of its remarkable energy-saving effect, and it can save a lot of costs for enterprises after long-term use.

IX. Summary

Compared with traditional refractory materials, ceramic fiber blanket has obvious advantages in heat insulation, high temperature resistance, thermal shock resistance, chemical stability, service life, environmental protection and energy saving. These characteristics make it widely used in modern industry, especially in metallurgy, petrochemical, construction and other industries, ceramic fiber blanket has become the first choice for thermal insulation materials.