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Vane Mist Eliminator – Droplet Removal for Enhanced Operational Efficiency

The vane mist eliminator is a mist elimination device consisting of multiple parallel plates with defined spacing and geometric shapes. It separates liquid droplets carried in the gas by changing the gas flow direction and reducing its velocity, causing droplets to collide and coalesce. This prevents corrosion of downstream equipment, improves product purity, and reduces environmental pollution.

It is commonly used in flue gas desulfurization systems (e.g. wet desulfurization), chemical columns, and gas-liquid separation units.

A vane mist eliminator composed of multiple vanes
Features
  • Multiple material options. Available in stainless steel, PP, FRP, and other materials, suitable for high-temperature, corrosive, and other challenging environments.
  • Excellent corrosion-resistance. Manufactured from premium, standard-compliant materials, ensuring reliable performance under harsh conditions like high-moisture flue gas.
  • High mist elimination efficiency. Mist elimination efficiency can reach 95% – 99%, with outlet droplet content ≤ 75 mg/Nm3.
  • Low pressure loss. Scientifically designed gas flow path ensures low pressure loss while maintaining high efficiency, thereby reducing fan energy consumption.
  • Easy cleaning and maintenance: Can be equipped with automatic washing systems or manual disassembly for cleaning, reducing the risk of clogging.
Vane Type
A streamline type double-channel mist eliminator vane model
Streamlined – Double Channel

Simple structure, easy cleaning; widely adopted vane design.

A streamline type single hook double-channel mist eliminator vane model
Streamlined – Single Hook Double Channel

Higher mist elimination efficiency & higher critical velocity for secondary entrainment resistance due to hook design.

A zigzag type double-channel mist eliminator blade model
Zigzag – Double Channel

Largely replaced by streamlined double channel designs in many applications.

A zigzag type triple-channel mist eliminator vane model
Zigzag – Triple Channel

High mist elimination efficiency, typically used in low-fouling applications.

Principle
  1. The gas-liquid mixture enters the mist eliminator, and the gas passes between the vanes.
  2. Droplets collide with the vane surfaces due to inertia and are captured.
  3. Captured droplets coalesce into larger droplets on the vanes and flow down under gravity or flushing force.
  4. The purified gas continues to flow and is discharged.
Working principle of mist eliminator removing droplets via vanes
Specifications
Table 1: Vane Mist Eliminator Specifications
Material PP, stainless steel, FRP, polysulfone, etc.
Dimensions Customizable
Vane spacing 20–50 mm, customizable
Outlet droplet content ≤ 75 mg/Nm3
Ultimate separation particle size 26 μm
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