Features

High Wear Resistance: Lined with wear-resistant materials such as high-purity Alumina ceramic, the pipe achieves a hardness of up to 9 on the Mohs scale, surpassing 20 times the wear resistance of ordinary steel. This effectively protects against the erosion and wear of particulate materials during pneumatic conveying.

Excellent Corrosion Resistance: The ceramic material is chemically stable and exhibits excellent resistance to acids and alkalis, making it resistant to corrosive media present in pneumatically conveyed materials and preventing corrosion damage to the pipe.

High Temperature Resistance: The pipe can withstand long-term operation in temperatures ranging from -50°C to 900°C or even higher, withstanding the high temperatures encountered during pneumatic conveying without deformation or performance degradation.

Smooth Inner Surface: The Ceramic Lining features a smooth surface with minimal roughness. For example, ceramic composite pipes manufactured using self-propagating high-temperature centrifugal casting have a surface roughness of Ra ≤ 0.8μm. This reduces friction between the material and the pipe inner wall during pneumatic conveying, lowering energy consumption and improving conveying efficiency. Excellent shock and thermal expansion resistance: The viscose adhesive's thermal expansion coefficient is between that of steel and ceramic, effectively mitigating any impact on the ceramic caused by the mismatch in thermal expansion between steel and steel. Furthermore, the addition of various flexible fibers within the viscose adhesive maximizes the ability to prevent the ceramic from falling off during long-term operation despite vibration and frequent thermal expansion and contraction.

Excellent sealing: Whether using a monolithically fired ceramic fitting installed within a steel pipe or using ceramic patches bonded to the pipe's inner wall, both ensure a tight seal and prevent material leakage during pneumatic conveying.

Key attributes

Types: 

Ceramic patch wear-resistant pipe: Ceramic patches are firmly bonded to the pipe's inner wall using a high-temperature adhesive, forming a durable, wear-resistant layer. The ceramic patches are typically made of high-purity alumina, which offers high hardness and wear resistance. This type of pipe is relatively simple to manufacture, and ceramic patches of varying sizes and specifications can be selected for bonding, making it suitable for pipes of various shapes and sizes. 

Ceramic-lined composite pipes: Utilizing techniques such as self-propagating high-temperature centrifugal casting, the ceramic layer forms a dense bond with the inner wall of the steel pipe at high temperatures. A nickel-based alloy transition layer can also be added to address the difference in thermal expansion coefficients between the ceramic and metal. The ceramic layer of these pipes is tightly bonded to the steel pipe, ensuring excellent integrity and superior wear, corrosion, and high-temperature resistance.

Applications

Power Industry: Used in pneumatic ash handling systems and pulverized coal conveying systems in power plants, they effectively resist abrasion from ash and pulverized coal, extending pipeline service life, reducing maintenance costs, and ensuring stable power generation.

Metallurgical Industry: Widely used in ore powder conveying and dust removal systems in metallurgical enterprises, they withstand the high-speed erosion and friction of ore particles, improving the reliability and efficiency of the conveying system.

Chemical Industry: Suitable for pneumatic conveying of chemical raw material powders and granules, such as fertilizers and plastic granules, they resist material abrasion and chemical corrosion, ensuring a safe and stable conveying process. 

Mining Industry: Used in pneumatic conveying systems for mineral powders and tailings dry discharge in mines, it resists wear and tear, reduces the frequency of pipeline replacement, and lowers mine operating costs.

New Energy Industry: In lithium battery production, for example, it is used to convey powdered materials such as positive and negative electrode materials. This prevents metal ion leaching and contamination of raw materials, ensures the purity of battery materials, and helps improve battery consistency and safety.