Leaders in air pollution management
AS part of a major mining company’s expansion project in Broken Hill, Luehr Filter was awarded the contract to supply a 325,000Am3/hr shed ventilation and dust collection system for a new ore crushing facility.
The ventilation system is designed to limit the concentration of diesel emissions by meeting appropriate ventilation regulations, standards and guidelines, as well as prevent fugitive dust emissions from the building.
To achieve the stringent EPA emission requirements, Luehr Filter supplied, installed and commissioned its unique off-line reverse air cleaning technology with horizontally mounted bags.
Along with the proven performance and reliability of this Luehr Filter technology, the ‘offline’ reverse air cleaning system is not competing against the filter’s main airflow during cleaning. Therefore, the force required to clean the filter bags is far less than the common compressed air reverse pulse alternative.
This gentler cleaning action greatly reduces emissions by allowing the bag to slowly deflate after cleaning, preventing dust migration through the filter media due to inertia, while it also significantly extends the life of the bags (up to three times) and eliminates the need for compressed air.
The horizontally mounted filter bags enable all airflow through the baghouse to be in the downward direction, which, along with the neighbouring bags being ‘offline’ during the cleaning cycle, greatly assists the dust to settle to the collection hoppers, resulting in lower bag differential pressure and therefore lower energy requirements.
In addition to reduced maintenance requirements, removing the need for compressed air also eliminates blow tubes, which cause manual handling and storage issues during a bag changeover.
This, combined with access to the horizontally mounted bags via the vertically hinged filter access doors, means the effort required to change filter bags is significantly reduced, and therefore safer than a typical vertical bag filter.
To help secure this contract, Luehr Filter Australia utilised its global supply chain with engineering, platforms and stack manufacturing executed locally, while cleaning systems were supplied from Luehr Filter GmbH and steel fabrication and fans supplied from Luehr Filter Asia.
For more information or sales enquiries, visit the Luehr Filter website: www.luehrfilter.com.au or call 03 9005 9086.