In 2021, Liansheng Pulp & Paper decided that a wise commercial decision would be to set up an integrated mill, including a kraft pulp facility, at a new 300-hectare site in Zhangzhou, which would supply pulp to its newly set-up packaging and tissue operations. Thomas Schmitz, President of ANDRITZ China, says, “This mill is very special in lots of ways. The owners are extremely ambitious, and the site has grown very quickly to produce coated ivory board, printing and writing paper, and has launched into tissue with two ANDRITZ PrimeLine machines.
“The decision to set up a kraft mill as the center of this integrated mill made perfect sense. The mill is close to the sea for the import of chips, and also close to plantation areas for the supply of eucalyptus and acacia logs – China holds the largest plantation areas outside of Brazil, so fiber challenges are not an issue here.”
SPECIAL TECHNOLOGY FOR THE LARGEST KRAFT PULP MILL IN CHINA
Liansheng Pulp & Paper proved its ambitions for the future by deciding on building the largest kraft mill in China. ANDRITZ was chosen to supply equipment for all the main process islands with an impressive lineup of groundbreaking technology. The full scope of supply included a chip handling plant with the world's largest 360° Stacker Reclaimers, the very first complete fiberline with COMPACT PRESS wash presses, China’s largest recovery boiler, the world’s largest single lime kiln plant in terms of capacity, and the world’s largest gasification plant. ANDRITZ also delivered all process pumps and MC pumps for this project.
Xue Rongjun, General Manager Liansheng Pulp & Paper, explains, “The choice of ANDRITZ to participate in the Liansheng chemical pulp project is mainly based on its profound technical accumulation and rich project experience in the chemical pulp field. ANDRITZ's equipment stands out in terms of stability, energy consumption control, and environmental protection performance, which can meet our production requirements for high capacity and green environmental protection.”
“This was a special project in all kinds of ways,” adds Schmitz. “The customer was extremely demanding in terms of technology, which needed to be the best when it came to capacity, efficiency, and environmental footprint, and all had to be packaged within a competitive price range."
Zhang Yong, Vice President & General Manager, Pulp & Power ANDRITZ China, confirms, “The technology at the mill pushes the limits in terms of capacity, efficiency, and sustainable operations. For example, the recovery boiler enables the pulp and paper production facilities to be virtually selfsufficient in energy. The COMPACT PRESS wash presses in the fiberline are a valuable asset, as they are extremely advantageous when it comes to lower effluent discharge and being manufactured in China makes them cost competitive.
“Furthermore, a mill this size would usually have two lime kilns. However, in this case we have supplied the world’s largest lime kiln by capacity, enhanced by ANDRITZ’s LimeFlash-H™ - an innovative, high-efficiency technology.”
In May 2023, ANDRITZ also received a follow-up order for the mill to supply two debarking and chipping lines, including horizontally fed HHQ-Chippers.
SUCCESS FROM START TO FINISH
The kraft pulp mill project was announced in March 2020 and started up in July 2024. Liu Junwei, Vice General Manager of Chemical Pulping Liansheng Pulp & Paper, says, “The overall progress has been smooth, and it has now basically reached the designed production capacity. The ANDRITZ team demonstrated strong professionalism and a collaborative spirit. From the design, installation, to the commissioning stage, they could respond quickly to our requirements. Their technical support and on-site services were timely and efficient. The smooth communication between the two sides ensured the timely completion of key project milestones.”
Liu adds, “ANDRITZ provided advanced technical equipment support. Coupled with the experience of the Liansheng team, it has outstanding performance in pulp line efficiency and energy consumption optimization. We would like to express our gratitude to ANDRITZ's professional team.”