At the recent Metso Paper Machinery Technology Exchange Festival in Finland, Metso unveiled a groundbreaking innovation in paper drying technology — the OptiDry Twin Impact Dryer. This advanced system is designed to enhance the drying process by achieving higher dryness levels at earlier stages while maintaining excellent web quality and stability during the final drying phase.
One of the key benefits of the OptiDry Twin is its ability to prevent web sticking and improve the strength of the paper. It also allows for higher operating speeds compared to traditional drying solutions, making it ideal for high-performance papermaking lines.
The system features two drying sections: a horizontal and a vertical unit, both equipped with a blow box that ensures optimal contact between the paper web and the dryer surface. Thanks to its high evaporation rate, this technology significantly boosts the dryness of the paper, especially in high-speed paper machines.
A major goal in developing the OptiDry Twin was to make tension control independent of speed limitations. As the dry web moves from one guide roller to the next, only the necessary tension is applied to maintain close contact between the web and the dryer. Importantly, there are no cold webs in contact with the hot dryer surface, which helps ensure precise and stable traction control throughout the process.
The OptiDry Twin offers several advantages:
- **Reliable operation**: The paper web runs smoothly with minimal negative pressure required to keep it in place.
- **Enhanced bulk and strength**: Higher dryness levels reduce stress on the paper, improving its overall quality.
- **Space-efficient design**: Compared to conventional drying systems, the OptiDry Twin allows for a more compact production line, reducing plant space and capital investment.
- **Increased efficiency**: It boosts the performance of paper machines, leading to faster return on investment.
- **Ideal for upgrades**: Its strong drying capacity makes it an excellent choice for modernizing existing paper or board machine lines.
Whether you're building a new paper machine or upgrading an existing one, the OptiDry Twin provides a highly efficient and cost-effective solution. It not only improves drying capacity and paper quality but also reduces operational costs and shortens the payback period. This makes it a smart and forward-thinking choice for any paper manufacturer looking to stay competitive in today’s market.
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