Case Study
Solving Premature Filter Bag Failures in a Lime Plant
Background
Challenge
Investigation
Our focus quickly shifted to the door seals, where we discovered that many were either damaged or missing entirely. Compounding this issue, several door hinges had deteriorated, allowing moisture to easily enter the bag house. Given that the plant operates under negative pressure, outside air and moisture were being pulled into the system, exacerbating the situation. The combination of Missouri’s humidity and negative pressure in the bag house led to moisture accumulation on the filter bags, which, when in contact with lime, caused premature bag failure.
Solution
After diagnosing the root cause, Menardi implemented a multi-faceted solution:
- Door Seal Replacement: All damaged and missing door seals were replaced to prevent further moisture ingress.
- Hinge Repairs: The door hinges were repaired and reinforced, ensuring a tighter seal and blocking one of the primary entry points for moisture.
- Preventative Maintenance Plan: A regular maintenance schedule was introduced, emphasizing frequent inspections of door seals and hinges. In addition, a system-wide audit was conducted to identify and address other potential vulnerabilities.
Results
Conclusion