Ceramic fiber modules, including folding blocks, slicing blocks, Perot blocks, and vacuum forming blocks. Due to the different production methods and crystal orientation structures of polycrystalline mullite fibers, the fiber length is short and the softness is poor. Polycrystalline fibers cannot be made into large modules, resulting in large-scale applications of polycrystalline fibers. Now polycrystalline fibers are mostly used in castable or refractory brick furnace walls and inner surface stickers on the furnace roof. The use of polycrystalline fiber stickers can effectively reduce the temperature of the outer wall of the furnace and reduce the heat storage loss of the furnace wall. The ceramic fiber insulation block is made by pressing and processing the ceramic fiber blanket according to the specified size using a module maker. After the pressing is completed, the specification size and compression ratio are revised twice to ensure the module size and bulk density.

The ceramic fiber insulation block is firmly combined with the furnace shell steel plate through the anchors embedded in the module and the external anchors on the welded early furnace shell.

The module has excellent elasticity. After each module is installed, the strapping tape is untied, and the modules are squeezed against each other, so that the module forms a seamless whole in the expansion direction, and can compensate for the shrinkage of the fiber lining, thereby improving the insulation of the lining. Thermal insulation performance, good overall performance.

Refractory ceramic fiber is a flexible and elastic material, so there is no need to consider thermal stress at high temperatures. When using refractory bricks and castables as furnace structural materials, the furnace must learn to have a large number of rigid steel structures. However, the refractory ceramic fiber lining is easy to fix, which brings about major changes in furnace design and construction.

The thermal conductivity of aluminum silicate fiber in the high temperature zone is very small and has excellent thermal insulation effect. At 1000 ° C, its thermal conductivity is only 15% of that of refractory clay bricks and about 38% of that of lightweight clay bricks.

However, its thermal conductivity has a great relationship with temperature, bulk density, slag ball content and fiber diameter.

The thermal conductivity of aluminum silicate fiber decreases with the increase of bulk density, but the decrease range gradually decreases. Even when the bulk density exceeds a certain range, the thermal conductivity no longer decreases and tends to increase. At different temperatures, there is a minimum thermal conductivity and a corresponding minimum bulk density. The minimum bulk density value corresponding to the minimum thermal conductivity increases with the increase of temperature.