Shaking Out Cleaner Air
In the mineral processing industry, the practice of taking granulated ore material and separating it into grades by particle size is referred to as mechanical screening. A screening machine contains a drive that induces vibration, a screen media that causes particle separation and a deck that acts as the mode of transport for the vibration.
Most ores consist of hard, tough exteriors that must be crushed before the valuable mineral can be released. After mining the minerals, the material is transported to a primary crusher where, once crushed, are screened for final separation based on its grade and size range. By the end of this process, the minerals have gone through roughly three stages of crushing.
A materials management company wanted to control the pollution generated during the process of separating material after extracting it from the mine through vibrating screens. Additionally, they were looking for a way to limit the amount of pollution produced during the transferring of the materials to the open bands.
Despite previous attempts to control dust generated from the ores material handling systems, a materials management company needed a solution that would capture the dust expelled throughout their system. Vibrating screens and shaker beds create large dust clouds during operation as minerals are sifted from one layer to the next. Transfer stations where the material changes direction or conveyor heights also create large amounts of nuisance dust. They were searching for something that would improve the air quality while requiring minimal maintenance.
In order to increase capture efficiency, AAF recommended modifying the customer’s current hood and duct design. The FabriPulse® Fusion baghouse dust collector, along with a centrifugal fan, were utilized as an integral part of the process filtration and hygiene ventilation. The baghouse was at a higher air to cloth ratio than normal, as this application of mineral transfer and the specific design of the FabriPulse® Fusion baghouse combine to make a compact, high-performing system.
The AAF FabriPulse® Fusion was the optimum solution to a variety of air quality problems the customer was experiencing. By tailoring the unit to the customer’s specific application requirements, AAF was able to decrease their frequency of filter change-outs, lower power consumption and improve air quality.