How to Enhance the Wear Resistance of Stainless Steel Fan Impellers

Stainless steel fans are centrifugal fans constructed from stainless steel. Due to their corrosion resistance, high stability, and exceptional durability, these fans are widely used in industries such as chemical processing, shipbuilding, and pharmaceuticals. How should we manage stainless steel fans during operation?

Dynamic operation (i.e., with the fan inlet damper open) significantly increases startup current, prolongs startup time, and may cause motor overheating or overload damage. During boiler operation (especially coal-fired boilers), pay attention to the drum sequence: start the excavator first, avoid reverse rotation, and activate the electric fan after 10 minutes of operation to clear ash or combustible gases from the furnace and flue before starting the blower.

Support regular maintenance of stainless steel fans with strict quality control. Conduct periodic duct inspections to eliminate potential hazards at their inception, ensuring thorough and comprehensive maintenance. Meticulously examine impeller wear, shaft-impeller balance, internal connection looseness and collisions, inlet damper flexibility, bearing lubrication and cooling conditions. Opt for external surface strengthening of impeller blades.

Select external surface reinforcement for impeller blades to enhance wear resistance. As stainless steel fans handle 200°C high-temperature flue gas containing corrosive substances like fly ash and sulfur dioxide, blade wear can cause reduced airflow, vibration, and blade fractures. Therefore, weld the exterior of blades or worn components.

What are the maintenance and storage methods for stainless steel corrosion-resistant fans? With the increasing use of stainless steel corrosion-resistant fans, we outline the following guidelines to ensure long-term equipment performance:

1. Maintain a clean environment for stainless steel corrosion-resistant fans. Keep the exterior surface clean, ensure no debris blocks the inlet/outlet, and regularly remove dust and other contaminants from the fan and ductwork.

2. High-temperature centrifugal fans must operate only under normal conditions. Ensure adequate power supply with stable voltage. Never use faulty power sources. Power cables must be dedicated lines; temporary wiring should not be used long-term. Immediately stop operation if abnormal noise occurs during operation.

3. If abnormal noise, severe motor overheating, or failure to start occurs during operation, immediately shut down the equipment. Do not attempt operation or maintenance for safety reasons. After inspection, conduct a five-minute test run to confirm normal operation before restarting.

4. Supplement or replace bearing lubricant according to environmental conditions (motor sealed bearings maintain constant lifespan with unchanged grease during operation) to ensure adequate lubrication during operation. For gas-sealed bearings and motor bearings, apply ZL-3 lithium-based grease to all 13 bearing rings; non-oil-based operations.