Location History:
- Turku, FI (1997 - 2002)
- Gorizia, IT (2002)
Company Filing History:
Years Active: 1997-2002
Title: The Innovations of Paavo Sairanen: A Pioneer in Pulp Drying Technology
Introduction
Paavo Sairanen, an accomplished inventor based in Turku, Finland, has made significant contributions to the field of pulp drying technology. With a total of five patents to his name, Sairanen's innovations enhance the efficiency and effectiveness of pulp processing. His work exemplifies the spirit of innovation and underscores the importance of sustainable practices in the paper industry.
Latest Patents
Sairanen's latest patents focus on advanced methods and apparatuses for drying pulp. One notable invention is a method designed for the drying of fiber-containing pulp, such as chemical and mechanical pulps. This innovation employs a mechanical dewatering process using equipment like drum or screw presses to prepare the wet pulp. Subsequently, the dewatered pulp is subjected to a dryer that utilizes two apertured cylindrical surfaces. By blowing drying gas through these surfaces and a pulp layer situated in the gap between them, water is efficiently evaporated from the pulp, achieving a dry matter content of over 80%, preferably between 85-90%.
Another significant patent involves a pulp drying line and method, which consists of a pulp press for pre-drying and a defibrator for shredding the pre-dried pulp into a loose form. The system includes a web-forming section where the loose pulp is spread onto an air-permeable forming base. This pulp web then passes through the dryer section, supported by an air-permeable fabric, optimizing the drying process without requiring the pulp to form a web during pre-drying.
Career Highlights
Sairanen's career is marked by significant stints at leading companies in the industry, including Metso Paper Inc. and Valmet Corporation. His experiences in these organizations provided him with a robust foundation for his innovative work in pulp technology.
Collaborations
Throughout his career, Sairanen has collaborated with esteemed colleagues such as Pertti Heikkilä and Pertti Hongisto. These partnerships fostered an environment of creativity and knowledge-sharing, crucial for developing advanced technological solutions in pulp processing.
Conclusion
Paavo Sairanen's inventive spirit and dedication to improving pulp drying methods have left a lasting impact on the industry. His patents not only demonstrate his expertise but also contribute significantly to enhancing the efficiency and sustainability of pulp processing. As an inventor, Sairanen continues to be a vital force in advancing innovations within the realm of pulp technology.