Oil Mist Purifier

An oil mist purifier is a specialized filter that captures airborne oil particles. They help maintain air quality and cleanliness in industrial settings, avoid equipment damage, and preserve machinery performance by preventing the accumulation of greasy residues.

Long pipe runs increase fire risks, so it is important that the system is located as close to your machine tool as possible. Dormatec offers a range of patented solutions that can be installed directly on the machine.

Coalescence

An oil mist purifier is an air filter that removes dangerously fine airborne contaminant particles during metal working and other industrial processes that use mineral oil-based lubricants. These dangerous particles pose health and safety risks for employees, as well as damage sensitive machinery. An oil mist removal system is a critical part of modern workshop equipment, as it can be used to protect sensitive electronics from contamination and maintain production schedules.

Oil mist is produced anytime metalworking fluids come oil mist purifier into contact with rotating machinery. When metals are cut, drilled, and ground with a CNC machine, they produce fine oil droplets that disperse into the air and can create health risks for workers and clog equipment.

The oil mist is drawn into the filtration system through a perforated drum that uses special veins to coalesce the particles and help them drain through the center. The resulting wet mist is drained into the case for storage and recycling, while clean air is returned to the workshop.

Nederman solutions for oil mist purification feature a multi-stage filtration process that is engineered for continuous operations in demanding airflow applications. The first stage involves a stainless steel woven mesh that acts as an effective barrier to prevent iron chips from entering the oil mist recovery system and disrupting the filtration process. The rest of the oil is filtered using advanced technologies that are engineered for high performance and low energy consumption.

Particle Size

In machining workshops, airborne oil mist contains a mixture of water and cutting fluid as well as impurities such as metal pieces, tramp oil and bacteria. This contaminated air contains a number of harmful substances and poses risks to the health of workers who breathe it in, resulting in serious diseases.

To solve this problem, a gas-water oil mist separation device is used to control the escape of particles into the outside environment. This device aims to realize the local control of the pollution source, reduce the risk to workers and increase the efficiency of exclusion.

The oil mist separation device uses a hooked folding plate to collect the particles. The structural parameters of the device were optimized through numerical simulation. The results showed that the folding plate angle and spacing have a direct relationship with separation performance, and that the ideal structure has an angle of 60deg and a spacing of 30 mm.

The results also showed that the escape of oil mist particles into the outside environment could be significantly reduced by adding the separation device at the pressure relief port. The addition of the separation device significantly weakened the cyclonic flow inside the machine on the left and right sides and rear, which resulted in a significant reduction in the escape rate.

Flow Rate

Oil mist carries the risk of contamination to products and machinery, as it dries and leaves a film on equipment and product. This creates a fire hazard, hygienic problems and is a health hazard for employees, so removing it from the air is crucial.

An oil mist purifier works by passing high-velocity air through an orifice that pulls oil into the air stream and breaks it down into particle sizes of 1 to 3 microns, much smaller than a typical dust or smoke particle size. These small particles are then transported through distribution systems at lower air velocity and pressure, as they move onto the equipment to be lubricated.

A good quality oil mist filter is built with a perforated drum that uses special veins to coalesce the oil mist into droplets. These then drip into a collection tray, where the oil is drained by gravity back into the pump’s oil tank, or into an external lubrication container. An oil mist system should be designed to prevent overpressurization of the system’s oil box, a condition that can cause external oil leaks and poor pump performance.

The type of lubricant used in an oil mist system is very important. Synthetic lubricants and high-grade, wax-free mineral oils are typically the best choices for oil mist use. Avoid using automotive oils or lubricants blended for sump or splash lubrication in an oil mist system. These lubricants tend to contain too much paraffin, which can plug the reclassifiers in the system during hot summer or cold winter temperatures.

Energy Consumption

Modern manufacturing facilities often use machinery that gives off a significant amount of oil mist in the air. This oil can contain bacteria, spores and other contaminants that are hazardous to human health. A specialized filtration system can be used to capture and remove these airborne particles in order to improve air quality and prevent them from being released into the environment.

The oil mist purifier uses a series of coalescing separators to separate the air from oily vapors. These separators use progressively smaller filters to ensure that the air is free of oily oil mist purifier manufacturer contaminant. A final stage — usually an electrostatic precipitator — can also be used in the system to ensure the complete removal of contaminated vapors.

Oil mist is commonly used to lubricate high-speed spindles in grinding machines. It can also be used to lubricate conveyors, paper machines, kilns, crushers and centrifuges. It’s even been used to lubricate engines, pumps and motors.

There are a variety of methods to remove oil from the air including inertial separation, electrostatic deposition and adsorption. However, these techniques have drawbacks such as high energy consumption, limited efficiency and high production costs. In contrast, the volume DBD plasma method has shown to be efficient, environmentally friendly and cost-effective in removing oil from industrial air streams. A study by Jidenko and Borra demonstrated that using a low frequency (1 kHz) of the volume DBD plasma reactor resulted in an 87% collection efficiency for 0.4 m oil mist aerosols.