DONALDSON

Cost-efficient solution for fine particulates ­emissions and explosion safety

PowerCore® technology developed by Donaldson provides optimum preconditions for highly efficient dust filtration in, for example, the cement and building materials industries (Figure 1). This new technology succeeds in cutting emissions of fine particulates (“dust”) and reducing the gas volume of the dust collectors critical for explosion safety simultaneously. Donaldson installations featuring PowerCore® technology are up to 70 % smaller than conventional dedusting systems.

PowerCore® filter packs are the central element. The proprietary Ultra-Web® nanofibre filter medium is used here, formed into “flutes” which capture the particles without depth-loading (Figure 2). This dust collection technology is the precondition for “downsizing” compared to conventional systems featuring filter bags or cartridges.

Ultra-Web® makes possible higher particulates concentrations on the surface of the fabric flutes than can be achieved using conventional fabric filters consisting of depth-loaded standard 540 g/m2 polyester. The comparative performance assessment between PowerCore® featuring the Ultra-Web® filter medium and 540 g/m2 standard polyester was performed by the Environmental Technology Verification (ETV) program in the form of an impartial laboratory test based on ASTM D 6830-02 as per EPA PM 2.5.

The filter packs have only a low weight and can be handled easily by one person (Figure 2). Changing of PowerCore® filter packs takes only two minutes, as against some ten minutes for the changing of a conventional filter bag or cartridge filter.

All PowerCore® dedusting systems include an innovative and highly effective pulse-based cleaning system. The pulsed flow reaches the entire filter pack and improves filter efficiency by keeping pressure drop low, thus prolonging service life. And these benefits are now also available to users of dust collectors installed in potentially explosion-endangered zones: Donaldson is now expanding the PowerCore® series, covering the entire airflow rate range of 1000 m3/h to 30 000 m3/h with systems which have been developed in accordance with the ATEX directive for use in potentially explosion-endangered areas of the Zones 21 and 22, and Zones 1 and 2 for gas, classifications (Figures 3, 4). The entire series of PowerCore® dust collectors is now available in an explosion-proof version which conforms to ATEX Directive 94/9/EC.

A further option which is also available throughout the series is a reinforced housing type developed specifically for filtration of potentially explosive particulates and capable of withstanding a dust explosion up to specific reduced blast overpressures. These types can be fitted with a large range of different safety features. Options such as these enable users who handle explosive dusts to select precisely the system that meets their individual requirements.

www.DonaldsonToritDCE.com

x

Related articles:

Issue 2010-04

Donaldson Filtration Deutschland GmbH

The new compact PowerCore® dust collectors have already proven their high filtration performance in different industries. At the POWTECH, Donaldson demonstrates the flexibility of the new technology...

more
Issue 2009-09

Change in dust collection technology

The development of PowerCore® fulfils the requirements for an easy and  service-friendly maintenance of dust collectors, which has been a demand of the industry for many years: With the incomparably...

more
Issue 2016-5 DONALDSON

New Donaldson dust collectors: Performance follows shape

The new cartridge dust collector system, the Downflo Evolution (DFE) dust collectors, was displayed at the Powtech 2016 for the first time. While cartridges are round, the development engineers at...

more
Issue 2011-02

New filter plant in the Ukraine

In 2009, the Ukranian cement manufacturer Doncement, a company belonging to the HeidelbergCement group, gave Intensiv-Filter the order for a bag filter including fans and dust transport system for the...

more
Issue 2018-9 EP3331834 (A1)

Use of clinker kiln dust for gas scrubbing

(22) 05.08.2016 (43) 13.06.2018 (57) Summary of the corresponding patent WO2017024247 (A1): Methods and apparatus for reducing the content of controlled acidic pollutants in clinker kiln emissions are...

more