Valmet to deliver key pulp technology to Nine Dragons’ new Beihai mill in China
Finland-headed forest industry and energy technology major Valmet Oyj has announced that it has received an order to deliver key pulp technology to Nine Dragons Paper (Holdings) Ltd (Nine Dragons) for its new Beihai mill in China. The order consists of two complete fiberlines, two bleached chemical thermomechanical pulp (BCTMP) lines, a recovery boiler, and DeNOx scrubbers. The deliveries will be done in phases and the start-ups are scheduled for 2023.
Nine Dragons Paper is engaged in the production and sale of packaging paperboard products, including linerboard (kraftlinerboard, testlinerboard, white top linerboard, and coated duplex board), high performance corrugating medium, recycled printing and writing paper, specialty paper, high-performance corrugated sheet, high-performance corrugated box, and pulp, providing one-stop packaging services for customers.
The company has nine paper manufacturing sites and eight packaging sites in China, one paper manufacturing mill in Vietnam, one pulp mill in Malaysia, and four pulp and paper mills in the United States (US). The aggregated annual production capacity of pulp and paper is over 18 million tonnes.
Developing and expanding capacity
Nine Dragons is developing its production portfolio and building pulp mills to support its new and existing paper machines with high-quality raw materials. Valmet has already received several pulp technology orders from Nine Dragons for its pulp, paper, and board greenfield project in Beihai city, Guangxi autonomous region.
This delivery includes two fiberlines, two BCTMP lines, a recovery boiler, and DeNOx scrubbers for recovery boiler and lime kiln with the corresponding spare part packages. Although the value of the order has not been disclosed, a project of this size and scope is Valmet says typically valued at around EUR 140 million.
The fiberlines will provide Nine Dragons with the flexibility to produce pulp grades of different types and provide possibilities to optimize pulp properties with lower power and wood consumption. This allows Nine Dragons to achieve excellent resource efficiency. The deliveries include Valmet Continuous Cooking G3, Valmet Screening, Valmet Refiner and Valmet Washing, Oxygen and Bleaching technologies.
The BCTMP lines include an impregnation system, high consistency refining, bleaching system, low consistency refining, screening, dewatering, and washing. It is designed to provide high yield, low energy consumption, and excellent pulp quality for the new paper machines.
The recovery boiler has multiple high-power features, including multi-stage preheating of feedwater and heat recovery from flue and vent gases to combustion air. The boiler is designed for low emissions and high availability and includes non-condensable gas (NCG) incineration.
The delivery also includes safety-related systems and Boiler Diagnostics System for the recovery boiler.
The DeNOx scrubbers for the recovery boiler and lime kiln are equipped with chemical feeding in order to achieve very low NOx emissions. The process can reduce emissions under the required 50 mg/Nm3 level with high availability and low maintenance need.
This project is the result of good cooperation between Nine Dragons and Valmet to find the optimum mill concept solution. I am happy to say that the outcomes are state-of-the-art process solutions, which will allow Nine Dragons to produce high-quality pulp grades in a more sustainable way with excellent efficiency in energy and raw material utilization. We are committed to continuing to support Nine Dragons with the latest technology and strong local presence in China, said Zhu Xiangdong, Area President, China, Valmet.