Electric arc foundry furnace.
A new collector was needed to ventilate another furnace. Baghouse media needed to survive significantly range of operating conditions. The process is divided into two phases: melting and boiling. During the melting phase, the fume volume (grain loading) is high and airflow requirements low. During the several-minute boiling phase, airflow volume is very high and the grain loading becomes very low, but the fume is a very fine particulate.
GORE® membrane/heavy duty polyester filter bags were installed in the electric-arc foundry furnace collector.
When the grain loading was high and air volumes low, the GORE® membrane was able to handle the high grain loading conditions. During the boil phase, the air volume pushed the air-to-cloth ratio past 7:1 with a very fine fume. Again GORE® membrane filter bags handled the conditions with no problems. The bags cleaned down being able to handle the next melt phase of the process. The GORE® membrane filter bags have continued to work well and are still in service after nearly four years.
Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations