Ceramic fiber board is also commonly known as ceramic fiber electric heating plate. Ceramic fiber is a kind of refractory thermal insulation material, which does not generate heat. Instead, it has the function of providing heat insulation and protection, mainly generating heat through the electric heating elements embedded in the ceramic fiber board side. Let's see how to improve the heat transfer capacity of ceramic fiber board.
1, try to use direct open flame heating, immersion combustion and other heating methods, reduce the number of heat transfer, improve the heating speed.
2. Recovery of waste heat, reduction of heat loss, reasonable extension of heating furnace length, construction of ceramic fiber board in preheating section to ensure that the heated workpiece is preheated in preheating stage.
3. Install air preheater and waste heat boiler.
4. Increase multi-effect heat reuse series.
5. Increase and rationally arrange heat exchange equipment and use high and low temperature heating equipment to improve comprehensive thermal efficiency.
6. When the process conditions permit, heat the heated object and raise the temperature of heat load as much as possible.
7. Reduce the weight of workbench, fixture, trolley, chain claw and roller table. Materials with small specific heat and thermal conductivity, such as ceramic fiber board, are used to reduce the accumulated heat and invalid heat in the heating process.
The raw material of ceramic fiber board is blown fiber (short, fine, easy to break and easy to mix), which is added with a certain proportion of binder and filler-grade additives, and then fully dispersed into slurry in a mixing tank after beating. Pumped into the forming pool, stirred with compressed air. The mold is put into the forming pool, and the fiber slurry is adsorbed on the mold by the principle of vacuumizing. Accurate control of adsorption time, vacuum dehydration of wet fiber materials, demoulding, placing on a tray, and drying in a drying furnace for 10-24 hours. After the fiberboard is dried, it passes through a special grinder and edge trimmer, and its size is accurately controlled.
In addition to the excellent properties of the ceramic fiber board corresponding to the loose ceramic fiber cotton, the product is hard in texture, excellent in toughness and strength, and excellent in wind erosion resistance. It is an ideal energy-saving material for kilns, pipes and other thermal insulation equipment, because it is non-expandable when heated, light in weight, convenient for construction and can be cut and bent at will.
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