Benefits of Surface vs. Depth filtration

 Depth filtration restricts airflow

With traditional filter fabrics, the dustcake on the dirty side of the bag is the collection medium, not the fabric itself. Until a good porous cake is formed - and even after it has - particulate can pass through into the depth of the fabric.

As particulate gets trapped in the fibers of the fabric, airflow is restricted, and differential pressure is elevated. More frequent cleaning can be necessary, and bleedthrough immediately following cleaning can occur.

(top image) Traditional fabric uses depth filtration and can blind, robbing airflow

Surface filtration protects fabric, cleans better

Filter bags laminated with BHA-TEX® membrane do not require a traditional dustcake to build for filtration efficiency. The microporous membrane is immediately effective at capturing even the smallest particulate that would pass through traditional fabric.

The slick surface of the membrane allows collected dust to clean off easily. This can result in reduced fan energy consumption, higher process throughput, and reduced compressed air costs.

(lower image) BHA-TEX membrane provides surface filtration, increases fabric efficiency

Rather than adding more compartments to existing equipment or purchasing new equipment, BHA-TEX membrane may be your most economical solution to increased airflow requirements. GE process experts can evaluate your system for the best alternative.

Savings

  • Reduced operating costs through less energy usage
  • Long-term benefits:
    • Longer bag life due to less cleaning required and no blinding for most materials
    • Less energy required for system airflow
    • More economical cleaning operations
    • Reduced downtime
  • Production savings / process improvement:
    • Increased production
    • More stable operation
    • More retained product
    • Lower emissions
    • Pressure drop v. airflow

For More Information

Call: 800-821-2222
GE
8800 East 63rd ST
Kansas City, MO USA