Factors To Consider While Choosing Your Mist Collector

A variety of machining processes that use metalworking fluids generate airborne mists, which can be harmful. If left unchecked, these mists can create a dangerous work environment that can result in serious health problems for workers. This is why these mists need to be controlled by facility operators. One best solution to keep your space safe, and your business in regulatory compliance, is a high-efficiency mist collection system. But, before you purchase an oil mist collector, it is important to consider a few critical aspects, some of them being –

Oil Mist Collector

The kind of machining processes being used

What kind of machining processes are you conducting? High-speed and high-pressure applications include cutting, grinding, and drilling; while low-speed and low-pressure processes include milling, turning, and honing.

The type of fluid being used

What type of metalworking fluid are you using – coolant or oil? Coolants are water-soluble concentrates that provide lubrication, while oil coolants are non-water-soluble, and are not mixed with water. However, the latter is used mostly as a lubricant, while the former is used primarily for cooling.

The speed of the machine tool

The speed of the machine tool impacts the amount of fluid that will be expelled during operation. Low speed with fewer revolutions per minute will throw off larger droplets, while fast sped with more revolutions per minute generates smaller droplets. The larger droplets are easier to contain, while the smaller ones are aerosolized at a faster rate, making it very difficult to contain them.

The amount of pressure of the coolant

Most machine tool providers recommend using high-pressure coolants as they contain few additives and clean the parts during the machining process, while also resulting in operators using less product, as these coolants are delivered at high pressure, straight through the machine. Nevertheless, this high pressure causes the water molecules to break apart, creating many small mist particles. On the other hand, low pressure machining creates larger coolant droplets that are easier to filter. This makes pressure an important consideration in determining the best collector for your application.

The temperature of the machining process

The amount of heat generated by the machining process impacts the type of emission and the collection system required to contain it. High temperature vapourizes the liquid particles, turning them into gas, making it difficult to contain. Processes that generate lesser heat, on the other hand, don’t cause the liquid to vapourize.

The type of filter used

With a wrong filter, the mist collector can lose airflow, which means that the emission concentration goes up when you open the door between cycles, causing the mist to be released into the environment. Mist then will pass through the primary filtration and saturate the HEPA secondary filter, causing a loss in airflow and efficiency capture too. This makes it very important to select the right filter material to handle your specific droplet spectrum. It is critical to work with an expert in the mist collection field to be able to choose the right mist collector for your application. One such expert is Powertech Pollution Controls Pvt. Ltd. whose Mistkiller is a trademarked high-efficiency centrifugal oil mist collector, designed and developed for the control of most types of mist, generated by the use of water-based coolants or water-based liquids.

 

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