Customized exhaust fans for waste incineration boilers
Customized exhaust fans for waste incineration boilers
Brand Name
SIMO BLOWER
Product Model
6-12
Certificate
CE/ISO9001/ISO45001
Country Of Origin
China
MOQ
1
Unit Price
$500-1000
Supply Capacity
300 Set/Sets per Month centrifugal fan and axial fan manufacturer
Product Details
Highlight:
customized exhaust fans for boilers
,waste incineration boiler fans
,boiler exhaust fans with warranty
Bearing:
ZWZ, SKF, FAG, NSK，Can Be Specified
System Type:
Single Inlet, Overhang Type
Applicable Industries:
Manufacturing Plant, Construction Works , Energy & Mining, Industrial Dust Collector System
Voltage:
380V
Power Source:
Three Phase AC Motor
After-Sales Service Provided:
Field Installation, Commissioning And Training
Lubrication:
Oil Bath Lubrication
Company Type:
Manufacturer
Warranty:
1 Year
Mounting:
FREE STANDING
Product Description
Detailed Specifications And Features
Customized Exhaust Fans for Waste Incineration Boilers
Waste incineration boiler exhaust fans — commonly referred to as Induced Draft (ID) fans — are mission-critical equipment specifically engineered to handle the most demanding flue gas environments in waste-to-energy (WtE) plants. Positioned at the terminal end of the flue gas treatment train, these fans provide the negative pressure required to draw flue gas through the entire system — from the furnace and heat recovery boiler, through the deacidification tower, baghouse filter, and SCR system, and finally to the stack.
Unlike conventional industrial fans, waste incineration exhaust fans must withstand a uniquely punishing combination of high temperatures (200~250°C continuous, with transient spikes exceeding 300°C), highly corrosive acid gases (HCl, SOₓ, HF), high dust loading, and toxic compounds including dioxins and furans. These extreme conditions demand purpose-built, customized solutions — not off-the-shelf equipment.
Core Challenges & Engineering Solutions
High-Temperature Environment
Flue gas temperatures in waste incineration systems typically range from 200°C to 250°C during normal operation, with instantaneous excursions up to 300°C or higher. Under certain upset conditions, components must withstand temperatures up to 300°C for approximately 30 minutes.
Engineering response: Heat-resistant alloys such as 316L stainless steel, 2205 duplex stainless steel, or titanium alloys are selected for critical wetted components. Thermal barriers and refractory linings are applied to the impeller and casing. Air-cooled hollow impeller designs and water-cooled bearing housings maintain bearing temperatures ≤80°C. Expansion joints and sliding base mounts accommodate thermal expansion without inducing structural stress.
Corrosive Flue Gas Composition
Raw flue gas from waste incineration contains HCl, SOₓ, HF, and other acid gases that rapidly attack standard carbon steel components. The dew point of these acid gases creates a highly corrosive liquid phase when temperatures drop.
Engineering response: Acid-resistant ceramic coatings (alumina-titanium composite) or PTFE linings are applied to the impeller and flow path. Double mechanical seals with nitrogen purge systems prevent acid gas leakage into bearing assemblies. All wetted surfaces are specified with corrosion allowances appropriate to the specific gas composition.
High Dust Loading & Sticky Particulates
Flue gas carries fly ash, partially combusted residues, and sticky tars that can accumulate on impeller blades, causing imbalance, reduced efficiency, and unplanned shutdowns.
Engineering response: Backward-curved blade designs minimize dust adhesion. Tungsten carbide hardfacing or ceramic tile linings are applied to blade leading edges and high-wear zones of the volute. Cleanout ports are provided at the casing base for scheduled maintenance access.
System Stability & Energy Efficiency
Waste feed composition varies significantly — both in calorific value and moisture content — requiring continuous adjustment of combustion air and exhaust flow.
Engineering response: Variable Frequency Drives (VFDs) are standard, enabling dynamic speed adjustment based on real-time flue gas volume. VFD control typically achieves 10-30% energy savings compared to fixed-speed operation. Integrated vibration and temperature sensors provide real-time monitoring, with automatic alerts for impeller fouling or imbalance. The fan is fully integrated with the plant DCS for coordinated control.
Product Features
- Customized design according to customer performance requirements, optimized by CFD technology for lower energy consumption than similar models
- Optimized blade placement angle for enhanced wear resistance and extended service life
- Variable inlet damper for flexible pressure and flow adjustment during operation; optional variable frequency motor for speed-based control
- Integrated temperature and vibration sensors for easy installation of fan operation monitoring devices
- Constructed from high-quality carbon steel, stainless steel, or other metal materials available upon request
- Ultrasonic flaw detection on impeller welding seams and main spindle to ensure no welding or material defects and guarantee strength
- Bearing cooling methods selected based on gas temperature and operating environment: low-cost water-cooling or high-performance oil-cooling; electronic coolers available for extreme high-temperature conditions
- Large components disassembled for transport, enabling container shipping to reduce transportation costs
- Numbered components with installation manual guidance for smooth system assembly
- On-site arrangement and guidance services provided
Product Parameters
The following data represents partial performance specifications. If you require specific parameters not listed, please contact us for customized design service.
| Series no. | 6-12 series | Feature selection |
|---|---|---|
| Performance | Impeller diameter | 1800-3300mm |
| Rotation speed | ≤1450rpm | |
| Pressure range | 2171-122597Pa | |
| Flow range | 15189-703455㎥/h | |
| Structure | Blade type | Backward, Straight, Aerofoil type |
| Impeller support | SWSI(Single Width, Single Inlet), DWDI(Double Width, Double Inlet), Overhung type | |
| Lubrication method | Oil bath lubrication, grease lubrication, lubrication oil station (Can be specified) | |
| Cooling method | Air cooling, Water cooling, Oil cooling (Can be specified) | |
| Driven mode | Direct driven, Coupling driven, Belt driven (Can be specified) | |
| Gas composition | Gas temperature | Normal | Customer request | Customer request | ≥250℃ | Customer request |
| Gas characteristic | Clean gas | Corrosive gas | Particulate dust | High temperature gas | Flammable gas, explosive gas | |
| System configuration | Motor brand | Chinese famous brand, ABB, Siemens, WEG etc (Can be specified) |
| Impeller | High quality carbon steel | FRP, Stainless steel, Rubber Lining | Wear-resistant layer or wear-resistant liner, ceramic patch | High temperature high quality alloy steel | FRP, Aluminum alloy (Can be specified) | |
| Air inlet cone | High quality carbon steel | FRP, Stainless steel, Rubber Lining | High quality carbon steel | High quality carbon steel | High quality carbon steel (Can be specified) | |
| Casing | High quality carbon steel | FRP, Stainless steel, Rubber Lining | High quality carbon steel | High quality carbon steel | High quality carbon steel (Can be specified) | |
| Air damper | High quality carbon steel | FRP, Stainless steel, Rubber Lining | High quality carbon steel | High quality carbon steel | High quality carbon steel (Can be specified) | |
| Main shaft | High strength carbon steel, Alloy structural steel (Can be specified) | |
| Bearing | ZWZ, SKF, FAG, NSK (Can be specified) | |
| Bearing housing | Cast iron | |
| Foundation bolts | GB799-1988 | |
| Option parts | System base frame, Protective screening, Silencer, Inlet & Outlet flexible connections, Inlet & Outlet counter flange, Air damper, Electric actuator, Shock absorber, Diaphragm coupling, Fluid coupling, Motor rain cover, Temperature sensor, Vibration sensor, Soft starter, Inverter, Special Electrical Motor, System monitoring Instrument. | |
Installation & Manufacturing
Our manufacturing facility operates more than 300 sets of processing and testing equipment with an annual production capacity of 10,000 units. We maintain strict quality control throughout production to ensure zero-error manufacturing and can meet emergency delivery requirements to guarantee your project timelines.
Packaging & Shipping
Contact Us
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