High Temperature Recirculation Fan for Galvanizing Furnace and Heat Treatment Lines
A high temperature recirculation fan is used to move hot air inside galvanizing furnaces, heat treatment lines, drying zones, and continuous production systems. It must handle temperature, thermal expansion, bearing protection, vibration control, and long operating hours.
For Zhichengfans, galvanizing and heat treatment applications are valuable because they show custom fabrication strength: reinforced impellers, high-temperature shaft design, insulated housing, external bearing arrangements, belt or coupling drive, and special inlet/outlet orientation.
Typical Applications
- Galvanizing furnace hot air recirculation
- Heat treatment line circulation
- Continuous drying and curing zones
- Coating and preheating sections
- Industrial furnace air circulation
- High temperature process ventilation
Selection Parameters
- Required airflow
- Static pressure or total pressure
- Normal and maximum operating temperature
- Gas medium and dust condition
- Furnace layout and installation space
- Inlet/outlet direction and rotation
- Material requirement and insulation requirement
- Drive type, motor position, voltage, and frequency
Design Requirements
High temperature recirculation fans need more than a standard fan housing. The design should consider impeller thermal deformation, shaft expansion, bearing distance from the hot zone, lubrication, cooling, and maintenance access. For high-temperature applications, bearing reliability is often a key factor.
Drive Arrangement
Belt drive and coupling drive can both be used depending on temperature, layout, motor position, and maintenance requirements. The motor is often kept away from the hot air path. The drive system should be selected together with bearing protection and base structure.
Related Reading
- Galvanizing Line Hot Air Fan Design
- High Temperature Circulation Fan for Coating, Galvanizing and Drying Lines
- Double Inlet High Temperature Circulation Fan for Drying Ovens
FAQ
Can the fan run inside a high-temperature furnace?
The fan can be designed for high-temperature circulation, but motor position, bearing arrangement, shaft design, and insulation must be checked according to the real temperature.
Is coupling drive better than belt drive?
Not always. Coupling drive and belt drive each have suitable use cases. The selection depends on temperature, layout, power, speed, and maintenance requirements.
What information is required for quotation?
Please send airflow, pressure, temperature, furnace layout, gas medium, material requirement, drive preference, voltage, and frequency.
