The term emulsion mist describes a very fine mixture of an emulsion in a gaseous carrier medium such as air. An emulsion is a combination of two different liquids without any visible separation of the two substances. As a rule, one of these substances is water-based and the other oil-based. In the case of an emulsion mist, the emulsion is released into the air as a very fine mist or aerosol. The difference to contamination of production exhaust air with oil mist or plasticizer fumes compared to emulsion mist is the ratio of oil-based to water-based liquid. The liquid dissolved in an emulsion mist contains a much higher proportion of water-based liquid than it would be the case with an oil mist.
An Emulsion mist is created as a result of friction or great heat in the course of metal processing. In machining, milling or even die casting, lubricants, release agents or coolants containing different emulsions are used to protect the machine or optimize the production process. Due to the high speeds and temperatures, these emulsions burn or evaporate and are then released into the exhaust air as fine mist or smoke. The emerging emulsion mist is highly harmful and, in case of incorrect or failing filtration, can form residues on machines and electronics, which in turn can lead to failure of the production machine.
Therefore, it is essential to efficiently extract the emulsion mist from the production exhaust air. Due to the lower proportion of oil-based liquids, the use of an emulsion mist separator is recommended. If required, the emulsion mist separator can be combined with an electrostatic exhaust air purification system or other filter components to separate odors or a heat recovery system.