Applicable environment and performance characteristics of refractory fiber castables

 Refractory fiber castables can be divided into smearing materials, projecting materials and tundish spray coatings according to different construction methods. It is mainly made of fiber acupuncture blanket as refractory raw material, adding inorganic binder, expansion agent, inorganic curing agent and various additives. Its main properties are low thermal conductivity, extremely strong thermal stability, certain compressive strength, certain resistance to airflow erosion, certain resistance to mechanical vibration, strong integrity, simple and rapid construction and dust-free, maintenance is simple, the oven time is short and simple, and the service life is long.

1. Various fuel furnace linings with working temperature ≤1250℃, including furnace wall and furnace top. Different types of refractory fiber castables are used to make composite furnace lining, which is stable in structure, economical and reasonable, and convenient in construction.

2. Backing insulation layer (including furnace wall and furnace top) with interface temperature of various high temperature furnaces and kilns ≤1050℃.

3. The lining of industrial boilers is more effective for furnace roofs.

4. For resistance furnace lining with working temperature ≤1200℃, the electric heating element can be exposed or made into a buried structure.

5. For industrial furnaces using flat flame burners, the top of the furnace is sealed and insulated, and the sealing effect is better than any other material.

6. The flue and large-diameter metal chimney are insulated with heat insulation.

7. High temperature air (≤1200℃) heat insulation inside the pipeline.

8. The inner lining of various thermal equipment.

9. It is especially suitable for furnace linings with mechanical vibration and large temperature changes, such as bell-type furnaces, removable cover of aluminum melting furnaces, etc.

10. Various general and special-shaped prefabricated parts can meet the special requirements of users.

Advantages compared to refractory fiber linings:

①The lining has no joints, and the fibers are arranged in three-dimensional directions. Under high temperature use, the lining does not shrink in direction, and does not produce cracks. The integrity of the lining is good, the air tightness is good, the heat preservation effect is good, and the service life is long.

② The construction process is simple, the speed is fast, and the material consumption is small. The requirements for the position of the anchoring nails in the special-shaped parts of the furnace lining are not very strict, which simplifies the design and facilitates the construction. The construction of the backing insulation layer with the anchoring brick structure is particularly convenient.

③ It has good mechanical properties, has certain strength, has certain load-bearing capacity, and has strong resistance to airflow erosion. In the refractory fiber castable special-shaped products, the furnace lining plate with grooves can be directly arranged with electric furnace wires or resistance strips, or prefabricated embedded electric heating furnace lining plates. The burner brick made of refractory fiber castable can be used for a long time under the condition of ≤1200℃ furnace temperature.

④It has strong adaptability to the atmosphere in the furnace and can be used in various fuel furnaces, and the furnace lining is stable in long-term use in reducing atmosphere.

We Changxing Refractory Material Co.,LTD is professional manufacturer and supplier of refractory materials for more than 30 years. Our high quality refractory products are good sold to many countries say South Africa, Bangladesh, Indonesia, Malaysia, etc. Shall any interests, welcome to contact us. Our team would make best to be your reliable partner!

Article Source:Applicable environment and performance characteristics of refractory fiber castables
Company name: Henan Changxing Refractory Materials Co.,Ltd
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