Asia Symbol's single pre-impregnation tower for dual digesters successfully commissioned

This is the world's first case of converting a pre-hydro vessel (PHV) for dissolving pulp into a chemical pulp cooking tower, and it is also one of the largest dissolving pulp line rebuild projects to date. It has pioneered an innovative model of single pre-impregnation tower supplying dual cooking towers for the first time. This new model will help the cooking section achieve higher flexibility and better pulp quality, setting a new benchmark for the industry.

Group photo of Asia Symbol pulp business team and Valmet expert team.

"Firstly, I am extremely proud that the PL12 rebuild project has been successfully commissioned in one go. The success of the project will effectively reduce the operating costs of the PL12 pulping process and extend the major maintenance cycle, helping Asia Symbol to maintain a leading position in fierce market competition with a forward-looking vision and strategic perspective. The smooth progress and unprecedented success of this rebuild project is the result of full resource commitment and seamless collaboration from both sides. The capable team from Asia Symbol's pulp business and seasoned experts from Valmet, both domestic and international, have jointly demonstrated an excellent spirit of craftsmanship, laying a solid foundation for the success of this project." says Xiao Guangcai, General Manager of Pulp Business, Asia Symbol (Shandong) Pulp and Paper Co., Ltd.

Commemorative signature at start-up.

"I am honored to be part of this rebuild project. Throughout the project, both sides has worked close together and multiple rounds of logic interlock checks between the old and new systems has been conducted. Valmet engineering team has worked hard to ensure that the pressure balance issues in the dual-tower process were properly resolved. This project not only reflects the spirit of collaboration between both teams but also demonstrates Valmet's deep understanding of technical challenges and its response capabilities." says Fredrik Sundell, Project Manager, Global Project Management, Pulp and Energy Business Line, Valmet.