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Mist Separators

Mist separators are used to remove mist, aerosols, and other contaminants from air or gas streams. Supplied of various forms, materials, and sizes to fit the specific application needs. Mist separators are available in a variety of forms and sizes, depending on their application. Common forms include vertical, horizontal, and cylindrical designs. Materials used for mist separators may include stainless steel, plastic, fiberglass, and other metals.

Mist Separators of Cylindrical Shape:
Top inlet and a plate-type collector at the bottom which acts as an outlet. This assembly is usually fitted with a filter element to collect the mist particles before they reach the outlet.

Primary application of mist separators is in industrial processes such as oil refining, petrochemical and chemical production, power plants, and the food and beverage industry. They are also increasingly being used in commercial and residential environments for treating polluted air. Mist separators can be used for both liquid and gaseous pollutants, and may include additional devices such as cyclones, centrifuges, electrostatic precipitators, and filters.

It is mostly used for separating and collecting waterdrops from process gases and mist from smoke desulfurization systems. The dust-collection container for separated liquid (negative pressure zone), which is installed on the lamellar, gets to have negative pressure while working so the separated liquid is not inhaled into the dust-collection container or doesn’t scatter again so high separation efficiency is obtained.

The production process of a mist separator involves several steps. It starts with the design, followed by fabrication and testing to ensure quality control. This is then followed by installation and proper operation. Regular maintenance and inspection is needed to ensure the proper functioning of the mist separator.


Principle & Structure

Mist separator system is composed of a lamellar element, a casing, a tank for the collected liquid, and a syphone so it is possible to attach a gas inlet and outlet in the middle of the duct through a flanger. The lamellar element is a kind of an obstructive plate and it is arranged at 45℃ against the direction of gas flow. Gases pass through the amellar while electricity flows, and the collection tank installed at the edge of the lamellar becomes to have negative pressure. On the other hand, the mist contained in gases collides with the lamellar because of the centrifugal force which is generated between inertia and gas current, and becomes attached to it. And it flows on the surface of the lamella and is inhaled into the collection container. The liquid collected in the container flows down to the tank for the collected liquid due to gravity, which goes through syphone and is continuously discharged out.

The collection container of the lamellar becomes to have negative pressure so there is no re-scattering of the separated liquid. And lamellar is installed according to the characteristics of gases and mist so the separation efficiency is very high.

2. Features

1) High separation efficiency
It becomes different, depending on the particle diameter of mist, content, specific gravity, and viscosity, but separation efficiency is over 99.8%.
2)No stoppage
It is a current inertia-type mist separator so it is not blocked even by dust-containing gases.
In addition, for the mist containing very viscous dust, a cleaning system can be installed.
3)Low pressure drop
4)High gas velocity
Normal velocity is 5~7m/sec.
5)Small installation area
6) Low installation cost for large gas quantity
7)Easy repair

Like a wire mesh or a ceramic filter, there are no stoppage and driving part so it is easy to repair. No manipulation is necessary during operation.
8)Heat and corrosion-resistant

Element can be made of any of stainless steel and plastics, and it is possible to select a material suitable for the gas conditions.

Demister for Separator
Vessel Diameter 3000 MM
Material: SS-316