The DD-Washer plays a pivotal role in the pulp manufacturing process, ensuring efficient washing and water removal during fiber processing. However, scaling and deposits, such as barium sulfate (BaSO4), can severely impact its functionality, resulting in operational inefficiencies.
Problem
The DD-Washer experienced significant scaling within its filtrate channels, leading to restricted flow rates, reduced washing efficiency, and lower throughput. The resulting production losses and heightened risk of equipment failure created recurring operational challenges.
Solution
- Implemented intensive cleaning procedures using a combination of high-strength acid solutions and complexing agents to dissolve BaSO4 deposits
- Conducted combinatory pre- and post-washer cleaning protocols twice a year to maintain performance
- Adjusted chemical formulations to align with specific scaling challenges in the system
Results
- Successfully restored the DD-Washer’s operating efficiency with deposits nearly eliminated
- Improved throughput capabilities and water removal efficiency
- Reduced the risk of equipment damage from scale-induced stress
Benefits
- Optimized System Performance: Reclaimed washer efficiency ensured smooth operation.
- Cost Savings: Preventative cleaning eliminated the need for costly unplanned downtime
- Improved Longevity: Prolonged the lifespan of washer components through consistent maintenance
- Sustainability: Improved washing efficiency led to lower energy and water consumption during operation
