In the steel heating process, the homogenizing furnace plays a crucial role in reheating billets to the rolling temperature and maintaining temperature uniformity. Operating typically between 1100–1300°C, it is one of the most energy-intensive pieces of equipment in a steel plant.
How to reduce fuel consumption and operating costs while ensuring heating quality has become the key challenge in furnace lining optimization.
Industry Challenge: Energy Loss Caused by High-Temperature Heat Dissipation
During long-term high-temperature operation, a large amount of heat is continuously lost through the furnace walls and roof. Traditional refractory bricks and castables have high thermal conductivity, which not only leads to fuel waste but also raises the furnace shell temperature, accelerates thermal fatigue, and shortens equipment life.
For steel manufacturers, this “invisible energy loss” has become a major factor affecting production costs and the transition toward greener, more efficient manufacturing.
Technical Advantages of CCEWOOL® refractory fiber board
Ultra-Low Thermal Conductivity
CCEWOOL® refractory fiber board is manufactured from self-produced high-purity ceramic fiber wool. The fiber is formed using imported high-speed centrifuge technology (rotation speed: 11,000 r/min), producing uniform, fine fibers with a shot content below 15%.
At 800–1000°C, its thermal conductivity is only 0.112–0.22 W/m·K, over 60% lower than traditional materials. This results in significantly reduced furnace heat loss, lower shell temperatures, and decreased fuel consumption.
Lightweight and High Efficiency
With a typical density of 280–350 kg/m³, CCEWOOL® refractory fiber board offers a lightweight structure with extremely low heat storage.
The fully automated production line and deep-drying system ensure uniform density and complete drying within 2 hours, giving the boards excellent thermal response and stability.
This lightweight design reduces overall furnace mass, shortens heating and cooling cycles, and improves thermal efficiency and operational flexibility.
Stable and Reliable Performance
Manufactured from high-purity alumina and silica (impurity content controlled below 1%), CCEWOOL® boards effectively inhibit crystal grain growth and deformation.
At 1200°C, permanent linear shrinkage is below 2%, preventing cracking and delamination during repeated thermal cycling.
The non-brittle structure provides strong resistance to vibration and impact, maintaining tight adhesion and superior insulation even after prolonged operation. This greatly extends furnace lining life and reduces maintenance frequency.
Empowered by Proprietary Technology: Stability and Energy Efficiency Combined
CCEWOOL® refractory fiber boards are produced using the Big Data-Driven Refractory Fiber Process Parameter Optimization System V1.0, a proprietary technology developed by Double Egret Thermal Insulation.
This system builds big-data models to optimize temperature, pressure, dwell time, and raw material ratios during vacuum forming, thereby improving molding precision and ensuring consistent thermal conductivity.
It also intelligently identifies energy consumption peaks and automatically adjusts resource allocation, reducing unit energy use and enhancing production efficiency.
As a result, it enables stable quality, energy optimization, and intelligent green manufacturing in every stage of production.
Application Results and Energy-Saving Benefits
Steel manufacturers reported the following improvements after adopting CCEWOOL® refractory fiber boards in homogenizing furnace upgrades:
- Furnace shell temperature decreased by 40–50 °C
- Natural gas consumption reduced by 8–12%
- Furnace lining life extended by 2 years
- Maintenance frequency significantly reduced
These results demonstrate that CCEWOOL® refractory fiber boards not only optimize thermal efficiency but also help enterprises achieve measurable energy savings and sustainability goals.
In the steel industry—where high-temperature performance and energy efficiency are equally vital—CCEWOOL® refractory fiber board stand out for their excellent thermal insulation, structural stability, and long-term reliability.
They not only reduce energy consumption, extend furnace service life, and improve operational safety, but also promote the transformation toward green, efficient, and sustainable production across the steel sector.
Post time: Oct-20-2025
