Wear resistant ceramics used in fan impeller Dovetail slot type wear-resistant

Product Specification

Product Description

Wear-resistant ceramics are used in fan impeller, They are mainly used to paste alumina (Al2O3) ceramic sheets at the outlet of the fan impeller, the connection between the blades, and the rear disc to improve the wear resistance of the fan impeller.

This technology combines modern engineering materials and advanced three-dimensional flow theory to design and manufacture. By forming a surface layer with excellent wear resistance on the main working surface of the fan equipment, the purpose of extending the service life of the fan and improving the efficiency of the fan is achieved.

This specially treated ceramic layer can not only effectively resist the erosion and wear of particles, but also maintain its structural integrity and performance stability in harsh working environments. Therefore, fan impeller lining ceramic technology is widely used in industrial fields that need to handle hard particulate matter, such as mining, cement, power, and chemical industries, to ensure the efficient and stable operation of fan equipment and significantly reduce the frequency and cost of downtime maintenance caused by wear.

Product Features:

Good insulation and mechanical strength: The fan wear-resistant ceramic sheet also has good insulation and mechanical strength, which can effectively reduce noise and vibration during equipment operation.

High-temperature resistance: The use of special high-temperature resistant inorganic adhesives and advanced technology allows the ceramic sheet to remain stable in high-temperature environments and is not easy to fall off.

Process and installation

Ceramic piece design: The ceramic piece is designed to have a moderate size and weight so that even if some ceramic pieces are damaged, it will not affect the overall dynamic balance of the impeller.

Installation method: Common installation methods include dovetail groove inlay structure with strong adhesive fixation, steel clip plug welding, and adhesive inlay bonding. These methods can ensure the firm installation of ceramic pieces on the fan impeller.

Adhesive selection: For fan impellers in high-temperature environments, it is necessary to select adhesives that are resistant to high temperature, high strength, and high toughness.

Alumina ceramic technical parameters

Application and Effect

Application Field: Wear-resistant ceramics are used in fan impellers and are widely used in fan equipment in mining, metallurgy, chemical industry, cement, and other industries to handle dust, abrasive, and other particulate matter.

Usage Effect: After the fan impeller is lined with ceramic sheets, the wear-resistant service life of the fan impeller can be increased by more than three times, and the fan efficiency can be increased by about 10%~30%. At the same time, due to the good wear resistance and high-temperature resistance of ceramic sheets, it can also reduce the maintenance cost and downtime of equipment.

Maintenance and care

Regular inspection: Check the fan impeller regularly to ensure that the ceramic piece is not falling off or damaged.

Timely repair: If the ceramic piece is found to be falling off or damaged, it should be repaired or replaced in time to avoid affecting the normal operation of the fan.

Cleaning and maintenance: Clean and maintain the fan regularly to remove dust and debris attached to the ceramic piece to keep it in good working condition.

How to solve the problem of ceramic shedding under high temperatures?

How to solve the impact of sudden heating and cooling on ceramics during startup or shutdown?

When the unit is started or shut down, it will encounter sudden heating and cooling. The thermal expansion coefficients of ceramics and steel are inconsistent, and the organic adhesive is brittle, which can easily cause the entire ceramic to peel off.

In response to this problem, our company has specially improved the inorganic adhesive to make its thermal expansion coefficient between steel and ceramics (9×10-6m/m.K). At the same time, the microfiber structure of the adhesive can well adjust the extrusion of ceramics caused by the inconsistent thermal expansion of ceramics and steel, and to a large extent ensure that the ceramics will not fall off in long-term operation in various harsh environments.

How to solve the ceramic gap problem?

We use mature technology to make the ceramic gap no larger than 1mm. At the same time, to avoid forming a gap along the wind direction, we use the offset pasting method to install wear-resistant ceramics perpendicular to the wind direction. This can avoid the erosion of the ceramic gap along the wind direction and achieve a very small gap connection.