This article's table of contents introduction:
- Application: Cooling Flue Gas in a Kiln (e.g., Cement or Steel)
- Material: 16Mn (Chinese Standard Low-Alloy Steel)
- Performance Data: 63305 m³/h @ (Assumed Pressure)
- Key Design Considerations for this Fan
- Summary of likely product:
- Next Steps for you:
It appears you are referencing a specific industrial fan specification. Let me break down what this likely refers to, based on the keywords you provided.
Interpretation:
You are describing a Backward Curve (Backward-Inclined) Centrifugal Fan designed for a large-capacity industrial application, specifically for cooling flue gas in a kiln system. The material specification "16Mn" and the flow rate "63305 m³/h" are critical technical details.
Here is the detailed technical breakdown:
Application: Cooling Flue Gas in a Kiln (e.g., Cement or Steel)
- Context: In rotary kilns (e.g., for cement production or iron ore pelletizing), hot exhaust gas is produced. This gas must be cooled before it enters a baghouse filter or electrostatic precipitator for pollution control.
- Function: The "Cooling Flue Gas Fan" is used to either:
- Induce ambient air into a gas conditioning tower (evaporative cooling).
- Pull hot gas through a gas-to-gas heat exchanger or air-cooled duct section.
- Directly mix cool air with the hot flue gas to lower its temperature.
- "Backward" (BW): The fan uses Backward-Curved or Backward-Inclined blades. These are ideal for this application because they are:
- Non-overloading: The motor will not overload if the system resistance changes.
- Efficient: High static efficiency (typically 75-85%).
- Robust: Suitable for particulate-laden gas (with proper wear protection).
Material: 16Mn (Chinese Standard Low-Alloy Steel)
- 16Mn (Q345B/A): This is a Chinese low-alloy, high-strength structural steel (yield strength ~345 MPa). It is equivalent to ASTM A572 Gr.50 or S355J2.
- Why 16Mn?
- Strength: Allows for thinner, lighter fan casings and impellers while handling high pressure.
- Wear Resistance: Better abrasion resistance than standard mild steel (Q235) when handling dusty flue gas.
- Weldability: Good for heavy plate fabrication.
Performance Data: 63305 m³/h @ (Assumed Pressure)
- Flow Rate: 63,305 cubic meters per hour (approx. 37,250 CFM). This is a Large Capacity fan, typically requiring a motor in the range of 160 kW to 315 kW (depending on the required static pressure, which you did not specify).
- Typical Pressure Range for such a fan:
- Low Pressure: 1000-2000 Pa (for simple dilution cooling).
- Medium Pressure: 2500-5000 Pa (for induced draft through a cooling tower or heat exchanger).
Key Design Considerations for this Fan
| Parameter | Requirement for 16Mn / Flue Gas |
|---|---|
| Temperature | 16Mn steel starts to lose strength above 300°C (572°F) . For higher gas temps (>350°C), a stainless steel (304/316) or a specialized alloy (e.g., 16Mo3) must be used. |
| Dust Content | The fan must have a wear lining (sacrificial wear plates) on the casing and impeller or use thicker plate (16Mn + Hardox wear plates). |
| Corrosion | Flue gas may contain acid (SOx, NOx). The 16Mn fan must be protected with an acid-resistant coating (e.g., epoxy vinyl ester) or run above the acid dew point to prevent corrosion. |
| Vibration & Shaft | A large fan requires a heavy shaft (likely 40Cr steel) and oversized bearings (SKF/FAG split plummer blocks) for reliability. |
| Drive | Direct drive (D-coupling) is common for efficiency, but V-belt drive may be used for speed adjustment. A VFD (Variable Frequency Drive) is strongly recommended for start-up and temperature modulation. |
Summary of likely product:
"16Mn Backward Inclined Centrifugal Fan, Model Y5-48 or Y6-41 type"
- Capacity: 63,305 m³/h
- Impeller Material: 16Mn
- Casing Material: 16Mn with wear lining
- Blade Type: Backward-curved (low noise, high efficiency).
- Motor: 6-pole or 4-pole, 380V/660V/10kV (depending on power), IP54, F-Class insulation.
Next Steps for you:
If you are sourcing or specifying this fan, please provide the missing parameters to get a precise quotation:
- Total Static Pressure (Pa or mmH₂O): e.g., 2500 Pa.
- Gas Temperature (Max & Normal): e.g., 250°C normal, 350°C peak.
- Gas Composition: Is it clean air, or does it contain cement dust, SO₂, HCl, etc.?
- Location: Indoor vs. Outdoor (weatherproofing required).
Conclusion: The information "Backward 16Mn Kilns Cooling Flue Gas Fans and Blowers 63305m³/h Large Capacity" describes a heavy-duty, high-strength fan suitable for industrial kiln gas cooling, but the cost and design will vary significantly based on the required pressure and temperature.
