Case Study: Filtering Milled Calcium Carbonate Coated with Stearic Acid using GORE Filter Bags
Case Studies, United States
High production levels and low pressure drop. Increased mill efficiency yielded considerable energy savings by producing a set tonnage in a much shorter period. The excellent cake-release characteristics enabled the collector to be operated continuously for 12 months at a maximum pressure drop of 5" w.g. The emission problem was eliminated.
Application
Quarry, Southern England. Pulse-jet unit with 228 bags; air-to-cloth ratio 4/1.
Optimization Potential
The stearic acid used to coat the surface of the carbonate particles caused conventional filter bags to blind within three days. A 12" w.g. pressure drop was reached. Several bags were removed, and the unfiltered air was vented into the atmosphere.
Solution
A full set of 228 GORE® membrane/Nomex® felt filter bags was installed
Results
High production levels and low pressure drop. Increased mill efficiency yielded considerable energy savings by producing a set tonnage in a much shorter period. The excellent cake-release characteristics enabled the collector to be operated continuously for 12 months at a maximum pressure drop of 5" w.g. The emission problem was eliminated.
FOR INDUSTRIAL USE ONLY
Not for use in food, drug, cosmetic or medical device manufacturing, processing, or packaging operations.