Demister pad, also called mist pad, wire mesh demister, mesh mist eliminator, catching mist, mist
eliminator, is used in gas entrained mist separation column to
guarantee the filtering efficiency.
Features of demister pad
Simple structure.
Lightweight and easy to transport.
High porosity, less pressure drops.
Large surface area and high separating efficiency.
Easy to install, operate and maintain.
Durable and long service life.
Corrosion and rust resistance.
Working principle of demister pad
When the gas with mist rises at a constant speed and passes through
the wire mesh, the rising mist will collided with the mesh filament
and attached to the surface filament due to the inertia effect. The
mist will be diffuse on the filament surface and the droplet will
follow along the filaments of the two wire intersection. The
droplet will grow bigger and isolate from the filament until the
droplets gravity exceeding gas rising force and liquid surface
tension force while there is little gas passing through the
demister pad.
Separate the gas in the droplets can improve the operating
condition, optimize process indicators, reduce corrosion of the
equipment, extend equipment life, increase the amount of processing
and recovery of valuable materials, protect the environment, and
decrease air pollution.
Mesh pad installation
There are two kinds of wire mesh demister pad, which are disk
shaped demister pad and bar type demister pad.
According to different using condition, it can be divided into
upload type and download type. When the opening is located in the
above of the demister pad or when there is no opening but has
flange, you should choose the upload demister pad.
When the opening is in the below of the demister pad, you should
choose the download type demister pad.
