With the introduction of a series of national and local emission standards and regulations to control cooking fume pollution, the market demand has been stimulated, and a potential market for cooking fume purification equipment has been formed accordingly. Through the analysis of the popular oil fume purification equipment on the market, according to the technical principle, it can be roughly divided into five categories: mechanical oil fume purification equipment, electrostatic oil fume purification equipment, wet oil fume purification equipment, plasma purification method and mechanical method of compound oil fume purification equipment.
Oil smoke is collected by filtration, cyclone centrifugation, activated carbon adsorption and so on. The treatment effect of this method is related to its design, control parameters and materials used. Oil smoke is treated by filtration, which makes oil smoke particles depend on inertia and inertia by changing the direction of airflow when oil smoke passes through grilles, oil mist net cover, etc. Collision separates the gas flow into the oil tank. Most of the filters used in this method are oil-affinity polymer materials with low cost. This method can remove 40%-70% of the aerosol and has obvious effect on odor purification.