The high-pressure dust collection fan is designed to operate against elevated static pressure in industrial dust extraction and air filtration systems. It draws dust-laden or clean process air through ductwork, baghouse collectors, cartridge filters, and cyclones where high system resistance requires precise pressure and airflow delivery.
Technical Specifications
|
Parameter |
Specification |
|
Airflow Volume |
2,000–50,000 CFM (3,400–85,000 m³/h) |
|
Static Pressure |
Up to 4,500 Pa (18 in. wg) |
|
Impeller Diameter |
400–1,600 mm |
|
Operating Temperature |
-20°C to 250°C, depending on configuration |
|
Motor Power |
5.5–250 kW |
|
Motor Efficiency |
IE3 / IE4 |
|
Housing Material |
Q235B Carbon Steel / Hardox 400 Wear Plates / SS304 / SS316L |
|
Drive Arrangement |
Arrangement 1 / 3 / 9 |
|
Drive Type |
Belt Drive / Direct Drive |
|
Application |
High-Pressure Dust Collection / Dust Extraction / Industrial Process Air |
Airflow & Static Pressure Selection
Duty Point Selection: Fan selection is calculated from the required volumetric airflow and total pressure loss across the system layout rather than nominal motor rating alone.
System Friction Consideration: Airflow calculations account for duct network friction, collection hood losses, filter resistance, and fittings to maintain target suction pressure.
Operating Curve Evaluation: Working points are checked against fan performance curves to avoid operation outside the recommended performance range and reduce the risk of motor overload.
Temperature Adjustment: Air density changes caused by operating temperature are incorporated into fan speed, shaft power, and static pressure calculations.
Condition Compatibility
Handled Dust Types: Evaluated for industrial dusts including wood particulate, metal grinding dust, cement powder, and mineral dust.
Impeller Configuration Selection: For high-dust applications, impeller configuration is selected according to particle characteristics, dust concentration, pressure requirements, and the risk of material buildup.
Fan Location in Circuit: Casing and impeller details vary depending on whether the fan sits upstream (dirty-side) or downstream (clean-side) of the primary collector.
High-Pressure Impeller Engineering
Impeller Sizing Range: Manufactured across standard diameters from 400 mm to 1,600 mm based on pressure and speed calculations.
Blade Configuration: Constructed with heavy-gauge backward-curved or backward-inclined blades to generate static pressure under continuous operating loads.
Welding Execution: Blade-to-shroud joints are fully welded to withstand continuous high-speed rotation and pressure differentials.
Dynamic Balancing Process: Impellers undergo dynamic balancing to reduce vibration and limit mechanical loads on bearings during operation.
Wear Protection Evaluation
Abrasive Media Applications
Designed for systems handling sand, silica, metal slag, and mineral dust.
Wear Point Identification
Protection focuses on high-wear areas, including blade surfaces, impeller inlets, casing scrolls, and inlet cones.
Replaceable Wear Liners
Internal scroll liners can be replaced during maintenance without replacing the main casing.
Manufacturing Control
Impeller Fabrication & Balancing: Formed impeller blades are welded and undergo two-plane dynamic balancing before assembly.
Casing Welding & Assembly: Scroll casings are welded, reinforced with stiffeners, and aligned with the shaft and bearing mounts.
Factory Testing & Inspection: Assembled fans undergo dimensional inspection, shaft-alignment verification, and trial rotation testing before coating.
FAQ
Q: What information is required for an accurate quotation?
A: Provide airflow, total system static pressure, dust type and concentration, operating temperature, and whether the application is abrasive.
Q: What warranty applies to the motor and fan assembly?
A: The sales contract defines separate coverage for the fan assembly and motor, which may have its own manufacturer warranty. Claims require photos, operating data, and the serial number for remote diagnosis.
Q: Are factory inspection and test results available before shipment?
A: Yes. Dimensional, shaft-alignment, and trial-rotation results can be provided by report, photos, or video, or witnessed on-site by your representative or a third-party inspector.
Q: What is the MOQ?
A: The typical MOQ is one set. Single-unit pricing is generally higher than multi-fan project pricing.
Q: What are the standard and customized lead times?
A: Standard units typically ship within 25–35 days. High-temperature designs up to 250°C or non-standard drive configurations generally require 40–55 days.
Q: Can the flange dimensions, discharge angle, and mounting footprint be customized?
A: Yes. These features can be adapted to existing ductwork and foundations without a full aerodynamic redesign, provided the duty point remains within the standard performance range.
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