Yingdu Demister is a professional manufacturer engaged in producing and exporting of demister pads
Mist separators are devices that are used to remove mist, aerosols, and other contaminants from air or gas streams. These can be of various forms, materials, and sizes to fit the specific application needs. In general, a mist separator is composed of a cylindrical vessel, with a conical portion at the top which functions as an 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.
The 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.
Mist separators are available in a variety of forms and sizes, depending on their application. Some of the common forms include vertical, horizontal, and cylindrical designs. Materials used for mist separators may include stainless steel, plastic, fiberglass, and other metals. Installation of mist separators may require special considerations depending on the local regulatory requirements, as well as the type of mist separator chosen.
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. The last step is regular maintenance and inspection to ensure the proper functioning of the mist separator.
Mist separators are mainly used to remove mist, aerosols, and other air or gas contaminants from industrial processes and environments. Other uses include the removal of combustible dust, smoke, and fumes, as well as for cooling and condensing applications. Additionally, mist separators can also be used for collecting particles such as pollen, dust mites, bacteria, or viruses in the air.
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.
1. 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 below figure shows the cross section of the lamellar. 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.
