What are the functions of ceramic fiber board for aluminum plant electrolytic cells?

What are the functions of ceramic fiber board for aluminum plant electrolytic cells? Ceramic fiber board (also known as aluminum electrolytic cell backing insulation board) is a key furnace insulation material used in aluminum electrolysis production, mainly used as the backing layer for the side walls and bottom of the cell. Its core functions revolve around insulation, energy conservation, extending lifespan, and improving current efficiency。

Aluminum plant electrolytic cell ceramic fiber board function:

1. High purity and low slag content: High purity alumina silica fibers, even zirconium containing fibers, must be used. Impurities and slag balls with low melting points will melt at high temperatures for a long time, leading to shrinkage and pulverization failure of the board.
2. Excellent resistance to fluoride corrosion: It is necessary to choose plates with good impermeability or enhance resistance to corrosive gases such as hydrogen fluoride by adding special components and increasing density.
3. Low thermal conductivity and suitable heat capacity: Pursuing lower thermal conductivity to maximize insulation effect while ensuring structural strength. Meanwhile, a small heat capacity helps to quickly adjust the thermal balance.
4. High strength and dimensional stability: A certain compressive strength and flexural strength are required to withstand construction pressure and potential stresses in production. The long-term high-temperature shrinkage rate must be very small (usually required to be ≤ 2% @ 24h, at the operating temperature).

Ceramic fiber board used in aluminum electrolytic cells is not only a “thermal insulation material”, but also a key technological carrier for energy conservation, efficiency improvement, longevity, and green production. Choosing high-density, low thermal conductivity, and high-purity ceramic fiber boards (such as 1260 ℃ high-purity or zirconium containing types) is crucial for the economic operation of modern large-scale pre baked anode electrolysis cells.

What are the functions of ceramic fiber board for aluminum plant electrolytic cells? For aluminum plant electrolytic cells, the cost of lining materials accounts for a small proportion of the overall overhaul cost, but their performance determines the operational safety, energy consumption indicators, and lifespan of the entire cell in the coming years. It is extremely uneconomical to bear tens of millions or even higher production shutdowns and safety risks in order to save limited material costs. Rosewool Insulation Refractory Co.,Ltd. maintains the highest level of caution when cooperating with any non industry top brands. Submit to you a solution that has undergone extremely rigorous verification.