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Dust removal centrifugal fans

Dust removal centrifugal fans are used in industrial dust collection systems as centrifugal ventilators.

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Product Description

Dust removal centrifugal fans are used in industrial dust collection systems as centrifugal ventilators. The following details will cover their working principle, structural composition, performance characteristics, and application areas:

Working Principle

Intake Stage: Dust-laden gas enters the fan through the intake port and accelerates under the high-speed rotation of the impeller, gaining kinetic energy.

Centrifugal Separation Stage: Under the action of the impeller blades, the gas generates centrifugal force, causing dust particles to be thrown towards the inner wall of the casing due to inertia, and then enter the dust collector, such as bag filters or cyclone dust collectors.

Types of Dust Removal Centrifugal Fans

1. The fan is designed as a single suction type. Sizes range from No. 2.8 to 29.

2. Each type of fan can also be made in either left rotation or right rotation forms. From the viewpoint of the motor side, if the impeller rotates clockwise, it is called a right-hand fan, denoted by "right"; if counterclockwise, it is called a left-hand fan, denoted by "left".

3. The angle of the fan's discharge outlet is indicated by the angle of the casing's discharge outlet.

4. The fan drive methods include:

A-type: Direct connection to the motor

B-type and C-type: Belt drive

D-type: Coupling drive

Exhaust Stage: The purified gas is discharged through the fan's exhaust port, completing the dust removal process.

Structural Composition of Centrifugal Ventilators

Impeller: Typically designed with backward-curved blades, made from high-strength steel plates welded or riveted together, providing excellent wear resistance and aerodynamic performance, effectively reducing energy consumption. Some impellers are coated with wear-resistant materials or undergo weld overlay treatment to adapt to high-dust environments.

A-type fan consists of casing, intake port, impeller, support frame, adjustable door (depending on customer needs), and motor, among others. B, C, and D types additionally feature transmission components. The fans undergo rigorous testing before leaving the factory, with amplitude meeting national standards. For models above size 18#, the entire support frame is purchased based on customer requirements (typically using concrete foundations). The casing is made of steel plates, providing robust reliability, available in either integral or semi-open designs, with the latter facilitating maintenance. Models below size 14# are mostly integral, while those above size 14# are generally semi-open. The impeller comprises blades, a curved front disc, and a flat rear disc, welded together. It should undergo static and dynamic balancing to ensure smooth rotation and optimal performance. The transmission section includes the main shaft, bearing housing, rolling bearings, and pulley (or coupling), equipped with water cooling devices to cool the bearings and extend their lifespan. The intake port is welded from steel plates into a conical shape, forming a streamlined convergent structure installed on the side of the fan, with a curved cross-section along the axial direction, allowing gases to enter the impeller smoothly with minimal loss. The adjustable door is installed at the front of the intake port, regulating airflow volume while maintaining constant fan speed (pressure). The entire support frame is made of channel steel and steel plates, ensuring solid, stable, and durable construction. The motor uses high-quality motors with copper cores, typically defaulting to Grade 3 energy efficiency motors. Customization options include frequency conversion motors, explosion-proof motors, and motors with energy efficiency grades above Grade 2.

Performance characteristics of centrifugal fans

High-efficiency energy saving: Optimized aerodynamic design achieves an efficiency of over 85%, saving 10%-20% energy compared to ordinary fans.

High wear resistance: The impeller can be coated with wear-resistant materials or undergo weld overlay treatment, capable of withstanding high-dust environments and extending the fan's service life.

Low noise: Optimized blade angles and casing structures result in operating noise usually below 85dB(A), contributing to improved working conditions.

Easy maintenance: The casing is generally designed for disassembly, facilitating inspection and replacement of the impeller, reducing maintenance costs and difficulty.

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Products

Products

Which wind turbine manufacturer leads in innovation?

How are Chinese wind turbine manufacturers innovating?

How does a titanium fan benefit sustainability?

How do power plant fans drive sustainability?

How do centrifugal steel mill fans boost efficiency?

How is a fan drive shaft crucial for sustainability?

Dust removal centrifugal fans

Description

marker

Product Description

Structural Composition of Centrifugal Ventilators

Performance characteristics of centrifugal fans

contact us

Related popular products

Wear-resistant centrifugal fans

Mixed-flow fans

Anti-corrosion axial flow fans

FBCDZ coal mine main ventilator

Desulfurization fans

Roots blower

Titanium fans

K and DK series of mine energy-saving axial flow fans

Multi-stage centrifugal blower

Axial flow fans

Boiler centrifugal induced draft fans

SDF tunnel construction axial flow fan

XQ-type inclined chute high-pressure centrifugal fan

Coal gas booster fan

Anti-corrosion centrifugal fans

Stainless steel centrifugal fan

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