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Non-metallic fabric skin
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Non-metallic fabric skin

Views: 4     Author: Site Editor     Publish Time: 2022-03-12      Origin: Site

Non-metallic fabric skin

The non-metallic fabric skin has the names of desulfurization ring belt, non-metallic fabric ring belt, etc., mainly made of multi-layer soft materials, with a wide temperature range, high pressure resistance, strong corrosion resistance, good flame retardant, sound absorption and shock absorption, flexibility and many other advantages.


What is skinning

Silicone skin cloth, steel wire reinforced temperature-resistant silicone cloth skin is made of glass fiber cloth as the base cloth, which is produced by coating or calendering. Or impregnated, it is a new product of high performance and multi-purpose composite materials. From the coating surface, there are two kinds of silicone cloth: single-sided silicone cloth, double-sided silicone cloth, the application characteristics of single-sided and double-sided silicone cloth are basically similar, single-sided silicone cloth is mainly used in some special environments without double-sided silicone In order to save related costs, for example, when making shoe materials, only one side needs to be resistant to chemical corrosion when covering. Silicone cloth has two differences: room temperature curing silicone cloth and high temperature curing silicone cloth: the temperature resistance range is different, the curing strength is different, and the performance after burning is different (high temperature curing is smokeless and odorless. It goes out quickly, and the ashes turn white), use life is not the same.


Application Features

1. For low temperature -70℃ to high temperature 230℃.

2. It is resistant to ozone, oxygen, light and weather aging, and has excellent weather resistance in field use, with a lifespan of up to 10 years.

3. High insulation performance, dielectric constant 3-3.2, breakdown voltage 20-50KV/MM.

4. Good flexibility, large surface friction and good elasticity.

5. Good chemical resistance.

6. The temperature of the medium in the flue gas duct can reach 1000℃.

7. The long-term working temperature of the outer skin is ≤250℃, and the short-term can reach 350℃. After installation, the outer skin temperature is ≤50℃ (with thermal insulation filler).

8. The skin bears positive pressure ≤40000Pa.

9. It can absorb three-dimensional displacement (up to 30%-40% of the effective length LO).

10. Make high corrosion resistance, wear-resistant desulfurization and anti-corrosion expansion joints.

11. Special inlet and outlet expansion joints for gas turbines.

12. Non-metallic expansion joint rectangular non-metal bellows compensator for smoked pulverized coal pipeline.



Advantages of non-metallic skinning

1. Compensation for expansion: It can compensate for multiple directions, which is much better than the metal compensator that can only compensate in one way.

2. Compensate the installation error. Since the system error is inevitable in the process of pipeline connection, the fiber compensator can better eliminate the installation error.

3. Noise reduction and vibration isolation: fiber fabric and moisturizing cotton itself have the functions of sound absorption and vibration isolation, which can effectively reduce the noise and vibration of boilers, fans and other systems.

4. No reverse thrust; because the main material is fiber fabric, it is powerless to transmit. Using fiber compensators simplifies the design, avoids the use of large supports, and saves a lot of material and labor.

5. Good high temperature resistance and corrosion resistance: the fluoroplastics and silicone materials used have good high temperature resistance and corrosion resistance.

6. Good sealing; there is a relatively complete production and assembly system, and the fiber compensator basically has no leakage.

7. The body is light, the structure is simple, and the installation and maintenance are convenient.

8. The price is lower than the metal compensator, and the quality is better than imported products. The price is 1/2-1/5 of imported products.



According to temperature classification

Type I ring belts are:

Surface layer silicone rubber fiberglass fabric cloth;

The second layer is fiberglass cloth;

The third layer is asbestos cord;

The fourth layer of polyethylene film;

The fifth layer is asbestos blanket;

The sixth layer is stainless steel wire mesh.



Class II belts are:

Surface layer silicone rubber fiberglass fabric cloth;

The second layer is industrial canvas;

The third layer is asbestos cord;

The fourth layer is fiberglass blanket;

The fifth layer is asbestos cloth;

The sixth layer is fiberglass cloth;

The seventh layer is stainless steel wire mesh.



Class III belts are:

Surface layer silicone rubber fiberglass fabric cloth;

The second layer is industrial canvas;

The third layer is aluminosilicate glass fiber cloth;

The fourth layer is asbestos cloth;

The fifth layer is a zirconium-containing glass fiber blanket;

The sixth layer is fiberglass cloth;

The seventh layer is stainless steel wire.



Non-metallic skin application range

1. Boiler plant 2. Cement plant 3. Steel plant, smelting furnace, incinerator 4. Thermal power plant and nuclear power plant 5. Air conditioning and air supply system 6. Glass plant, mining 7. Petrochemical enterprise 8. Air plant and coal plant cleaning plant 9 . Fan factory 10. Aluminum factory and carbon factory


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