Why does the Gold Cone work so well?

By Lee Morgan, Camfil Farr APC

The pleated filter cone in the middle of the Gold Cone™ cartridge has four benefits:

• Adds additional media area to the cartridge to allow for more airflow per cartridge in a more compact space than has ever been achieved before
• The hole in the bottom of the filter opens up more useable area in the dust collector, thus reducing interstitial can velocities
• Disperses the pulse air more evenly throughout the length of the filter cartridge for more effective use of the pulse energy
• The fourth benefit is perhaps the most important: The direction of the pulse coming out of the cone is straight down into the hopper away from the filters. This forces light dust particles into the hopper and out of the air stream.

Gold Cone™ Cartridge

This paper will explore each of these four benefits, but first lets address a fundamental issue of horizontal vs vertical filter configuration. For this discussion "can velocity" will refer to the average velocity of air approaching the filters using the entire cross sectional area of the dust collector. "Interstitial can velocity" will refer to the accelerated velocity where air passes into the filter section and is calculated by taking the total cross sectional area of the collector minus the cross sectional area of the filters.