What is Electrostatic Filter and How Does It Work?
Electrostatic Filters are among the most critical components in ecology units. They are responsible for precipitating most dust and oil particles, abbreviated as ESP. The diagram below illustrates how an electrostatic filter operates. As air passes through an ionizer, particles within the air are ionized by negatively charged plates. The negatively charged particles from the ionizer then pass between collector plates. These collector plates are arranged as negatively potentialized and grounded plates. The negatively charged particles are repelled by the negatively charged plates and adhere to the grounded plates. Over time, the particles separated from the airflow settle down the plates and accumulate in the collector tray.
Electrostatic filters gain their particle capture capability from high-voltage units. Operating in the range of 12-18 kV, these units facilitate the creation of the planned voltage between the plates.
The dirty air drawn by the fan passes through a washable metal pre-filter, which captures coarse dust and oil particles. Then, the air containing oil, smoke, and soot enters an electrostatic filter based on the principle of ionization.
In the electrostatic filter, the oil, smoke, and soot particles in the air become negatively charged due to high-voltage charge.
The negatively charged dirty air then passes through a positively charged area in the second stage, where the oil, smoke, and soot particles in the air are strongly attracted and adhered to the collector plates. The air that enters the electrostatic filter as dirty exits cleaned.
Electrostatic filters can be cleaned and used for years by cleaning them when they become dirty.
Electrostatic filters are up to 99 per cent efficient in filtering smoke.
Electrostatic filters are used in food plants and industrial plants to filter gases generated during the manufacturing stages;
They are used in all machines and areas where smoke is unwanted, such as:
– Kebab grills
– Doner grills
– Barbecues
– Grills
– Ovens
– Kitchens
– Dining halls
– Industrial presses
– Laser cutting machines
– Welding machines
– Injection machines
– Digital printing centers
– Printing houses
– All industrial machines
– Laboratories
– Smoking rooms