Newly Developed Mist Collection Technology

Donaldson Torit has developed its Synteq XP filter media, which is an engineered blend of small and large fibers that uses a proprietary, resin-free bonding system.

Article From: 9/13/2012 Modern Machine Shop, ,

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The all-glass Synteq XP filter media uses small and large fibers that are heat-fused together instead of bound by resin.

Manufacturers use mist collectors on machine tools to provide cleaner air and a better working environment for shopfloor employees. The Donaldson Company (Booth E-5742) notes that all mist collectors coalesce tiny mist droplets into larger ones and drain the collected coolant to prevent the filtration system from becoming plugged. However, there are differences in the ways that particular mist collector systems remove droplets from an airstream.

 

One common type removes droplets via electrostatic precipitation. Another design relies primarily on inertial separation to remove droplets from an airstream by diverting the airstream around a collection surface inside the unit. A third type of mist collector uses fibrous filter media that droplets adhere to and, after coalescing with other droplets, moves down the fiber to drain.

 

The challenge in using this last type of collector is balancing the need for both high efficiency and effective draining. High filtration efficiencies can be achieved using small fibers. However, small fibers typically require resin to hold them together, which prevents coalesced droplets from draining effectively. Therefore, filter media using small fibers can become easily plugged with trapped liquid. Conversely, large fibers have good draining characteristics but can compromise the ability of the media to capture small mist droplets.

 

To meet this challenge, Donaldson Torit has developed its Synteq XP filter media, which is an engineered blend of small and large fibers that uses a proprietary, resin-free bonding system. Heat-fusing the surface of larger binding fibers to surrounding micro-glass fibers provides a stable pore structure that improves unit performance and life because no resin blocks the pores. With no resin to compromise effective draining, the media’s small fibers offer higher filter efficiency. In turn, its larger fibers provide good overall support for the structure while maintaining clear drain channels.

 

Visit the company’s booth in the East Hall to learn more.

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