Characteristics and uses of aluminum silicate ceramic fiber boards

Aluminum silicate ceramic fiber board is an inorganic refractory material that has the characteristics of flame retardant, fire-resistant, thermal insulation, heat insulation, sound insulation, etc. Aluminum silicate ceramic fiber board is also called aluminum silicate fiber board and refractory fiber board. It is a refractory insulation material widely used between 600 degrees and 1200 degrees. It is made by continuous production and advanced process flow production lines.

In addition to the excellent properties of aluminum silicate ceramic fiber wool corresponding to bulk ceramic fiber wool, the product is hard in texture, has excellent toughness and strength, and has excellent wind erosion resistance. It does not expand when heated, is lightweight, easy to construct, and can be sheared and bent at will. It is an ideal energy-saving material for kilns, pipes and other insulation equipment.

So what are its characteristics? Let the editor tell you:

1. High compressive strength and long service life;

2. Low heat capacity and low thermal conductivity;

3. Non-brittle material, good toughness;

4. Accurate size and good flatness;

5. Easy to cut and install, and convenient to construct;

6. Excellent resistance to wind erosion;

7. Continuous production, uniform fiber distribution and stable performance.

Aluminum silicate ceramic fiber board also has the following uses:

1. Backing insulation for kilns in cement and other building materials industries;

2. Kiln backing insulation in petrochemical, metallurgy, ceramics and glass industries;

3. Backing insulation of heat treatment kiln;

4. Backing insulation for non-ferrous metal industry;

5. High temperature reaction and heating equipment backing insulation.

Aluminum silicate ceramic fiber boards use blown fibers (fibers are short, thin, easy to break and mix) as raw materials, adding a certain proportion of binders and filler-level additives, and then fully dispersed into slurry in the slurry tank through a beater. Use a pump to pump into the forming tank and stir with compressed air. Put the mold into the forming pool and use the principle of vacuuming to adsorb the fiber slurry on the mold. Precisely control the adsorption time, vacuum dehydrate the wet fiber material, demould, place it on a tray and send it to a drying oven for drying for 10-24 hours. The dried fiberboard is passed through a special grinder and edge trimmer to accurately control the size.

Due to its poor thermal conductivity, traditional hot air drying of aluminum silicate ceramic fiber boards takes a long time, consumes too much energy, and has poor drying uniformity. Microwave drying technology circumvents the problem of poor heat transfer performance, improves production efficiency, and meets the requirements of efficient, energy-saving and environmentally friendly modern industrial production. It solves the problems of traditional aluminum silicate ceramic fiber board drying technology taking a long time, slow capital turnover, and uneven drying. The specific features are:

1. The drying process is fast and rapid, and deep drying can be completed in a few minutes, making the final moisture content reach more than one thousandth;

2. Uniform drying and good drying quality of the product;

3. High efficiency, energy saving, safety and environmental protection;

4. Thermal inertia is small, and the instantaneity of heating is easy to control.