Functional effects of zirconium containing high alumina ceramic fiber blanket application

What are the functional effects of zirconium containing high alumina ceramic fiber blanket applications? Zirconium containing ceramic fiber blanket is a high-end product among ceramic fibers, which combines the ultra-high temperature resistance of zirconium containing fibers with the excellent mechanical properties of high aluminum fibers. Ordinary high aluminum blankets are used in medium and low temperature areas. For areas with high temperatures above 1100 ℃, large vibrations, and long service life requirements, zirconium containing high aluminum ceramic fiber blankets must be used to provide stable insulation, erosion resistance, shrinkage resistance, and no heat leakage.

High alumina and zirconium containing ceramic fiber blankets are both “expert level” materials in the field of industrial high-temperature insulation, but their functional focus and applicable scenarios are significantly different. Simply put, high alumina profiles are “high-purity warriors” that improve temperature resistance with extremely high alumina content; The zirconium containing type is known as the “elemental master”, which achieves superior high-temperature stability by adding zirconia to reduce aluminum content.

Application of Ceramic Fiber Blanket in Cement Plants (Core)

1. Rotary kiln mouth, coal injection pipe, tertiary air duct, discharge port
2. High temperature section lining/backing of preheater and cyclone tube
3. High temperature zone of grate cooler, elbow of hot air duct, expansion joint

Comparison between Zirconium containing High Aluminum Ceramic Fiber Blanket and Ordinary High Aluminum Blanket/Standard Blanket (Core Advantages)

Higher temperature resistance: 1200 ℃ long-term, ordinary high aluminum 1100 ℃, standard blanket 1000 ℃
Extremely small high-temperature shrinkage: shrinkage<3% at 1200 ℃, no heat leakage at joints
Strong resistance to thermal shock: no powdering or slagging during rapid cooling and heating
Better insulation effect: lower thermal conductivity, stronger insulation at the same thickness
Longer lifespan: In high-temperature areas of cement and aluminum plants, the lifespan is 1.5-2 times that of ordinary blankets