Special ceramic fiber board for lining of furnace in metallurgical industry aluminum silicate fiber fire baffle

  As a lining material, it can be used for the thermal insulation lining of atomic energy reactor, industrial kiln, metallurgical furnace and petrochemical reaction device, as well as the thermal insulation lining of metal material heat treatment furnace and ceramic kiln
Aluminum silicate refractory fiber board is a rigid refractory fiber product
Due to the use of inorganic binder, the product has excellent mechanical properties and wind erosion resistance
It is generally used to build the hot surface of industrial kiln and high-temperature pipeline lining

When selecting aluminum silicate fiberboard, we should not only check the composition of Al2O3, but also strictly control the content of other impurities
Such impurities are low melting point oxides
Excessive low melting point oxides will reduce the co melting point of aluminum silicate fiber materials
If the content of impurities other than Al2O3 and SiO2 reaches more than 3
5%, the ratio is controlled within 1%, which will reduce the actual service temperature of aluminum silicate fiberboard by nearly 100 ℃

Ceramic fiberboard maintains good mechanical strength even after heating
Compared with fiber blanket and felt, this product is a fiber insulation product with rigidity and supporting strength
The main raw materials are pyrogem and aluminum oxide powder
The jet fiber (short and fine fiber, easy to break and mix) is used as the raw material of ceramic fiberboard
A certain proportion of binder and filler grade additives are added and fully dispersed into slurry in the slurry mixing tank through the beater
Pump into the forming tank and mix with compressed air
Put the mold into the forming tank and use the principle of vacuum to make the fiber slurry adsorb on the mold
Accurately control the adsorption time, vacuum dehydrate and demould the wet fiber material, put it on a tray and send it to the drying furnace for drying for 10-24 hours
The size of the dried fiberboard is accurately controlled through a special grinding machine and edge cutting machine
To put it simply, ceramic fiber board is actually a kind of fire stop board made of ceramic fiber, binder and additives through pulping, molding, curing, drying and other processes

Because of its poor heat conduction performance, the traditional hot air drying of ceramic fiberboard takes a long time, consumes too much energy and has poor drying uniformity
However, the microwave drying technology bypasses the problem of poor heat transfer performance, improves the production efficiency, meets the requirements of high efficiency, energy conservation and environmental protection in modern industrial production, and solves the long time of traditional ceramic fiberboard drying technology, The problem of slow capital turnover and uneven drying is characterized by:
● the drying process is fast and rapid, and the deep drying can be completed in a few minutes, which can make the final water content reach more than one thousandth;
● uniform drying and good product drying quality;
● high efficiency, energy saving, safety and environmental protection;
● small thermal inertia, instant heating and easy to control