Case Study: Filtering Milled Calcium Carbonate Coated with Stearic Acid using GORE Filter Bags
![Case Study: Filtering Milled Calcium Carbonate Coated with Stearic Acid using GORE Filter Bags](/sites/default/files/styles/resource_full/public/2016-06/Filtering-Milled-Calcium-Carbonate-Coated-with-Stearic-Acid-using-GORE-Filter-Bags_0.jpg?itok=qqJi494t 1x, /sites/default/files/styles/resource_full/public/2016-06/Filtering-Milled-Calcium-Carbonate-Coated-with-Stearic-Acid-using-GORE-Filter-Bags_0.jpg?itok=qqJi494t 2x)
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.