Case Study: Large Paper Mill improves batch consistency and reliability with LSI's DeltaV digester upgrade

Large Paper Mill - Customer Case Study

The paper mill, a large paper mill, faced significant challenges with an aging DCS system causing inconsistent batches and downtime in its digester process, which negatively impacted its entire cardboard production line. They engaged Logical Systems Inc (LSI) to upgrade their control system and improve batch consistency.

LSI upgraded the DCS by moving all controls into a DeltaV system and provided a newly designed cook program. This solution eliminated steam header movement, creating uniform batches and dramatically improving reliability. The project achieved a 300% rate of return with payback in under three months, along with major chemical cost savings and a significant reduction in downtime. The client was so satisfied they asked LSI to repeat the project at other facilities.