Nine Dragons Paper Starts up New Pulp Mill Supplied by ANDRITZ at Hubei

Nine Dragons Paper has successfully started up a pulp mill supplied by ANDRITZ at its new integrated pulp and paper production plant in Hubei Jianli, China. The new state-of-the-art mill includes world-leading process technology and production equipment.

ANDRITZ’s resource-saving technologies with high energy efficiency and low emissions strongly support Nine Dragons Paper in reaching its financial and sustainability goals. ANDRITZ supplied the complete fibre line and recovery island as well as stock preparation and paper machine approach systems.

Through the joint efforts of all parties, early delivery, early installation and commissioning, and one-time successful start-up were achieved. We are very pleased with the project execution.

Liu Ming Chung, the Deputy Chairman and Chief Executive Officer of Nine Dragons Paper

The scope of supply on EPS (Engineering, Procurement, Supervision) basis comprised:
The complete fibre line for bleached hardwood pulp production, switchable to softwood pulp production, including state-of-the-art LoSolids continuous cooking, closed screening and highly efficient pulp washing as well as a two-stage oxygen delignification and a three-stage elemental chlorine free bleaching plant. The application of ANDRITZ’s latest Compact Press for all pulp washing significantly increases washing efficiency, reduces effluent discharge and ensures longer uptime.

Evaporation plants for black liquor and effluent, including an energy-efficient multiple-effect lamella evaporation plant to concentrate kraft black liquor up to 85 per cent DS (w/o ash) and an APMP effluent evaporation plant to concentrate effluent up to 65 per cent DS. The design of the evaporators and process reflects the latest ANDRITZ lamella evaporator technology for cleaner secondary condensate and lower energy consumption for excellent environmental and economic performance.

A recovery boiler with steam values of 515°C and 105 bar(g) at the superheater outlet to maximise energy generation. The delivery includes three-stage air pre-heating, flue gas cooling and feed water preheating technologies to maximise renewable power generation. The state-of-the-art recovery boiler is designed to meet the strict local flue gas emission standards.

A white liquor plant including a recausticizing plant and lime kiln. The recausticizing plant delivery includes a green liquor cooler, a slaker-classifier, three causticizer tank agitators, a dregs drum filter for dregs handling, a white liquor filter for high white liquor quality, and a lime mud filter for high mud dryness and low heat consumption in the kiln. The lime kiln is equipped with a high-efficiency sector cooler. ANDRITZ’s integrated white liquor plant provides the highest environmental standards and highly energy-efficient solutions.

An ash re-crystallization (ARC) system for the treatment of ash from the electrostatic precipitator to decrease the chloride and potassium content while recovering sodium and sulphate, thus enhancing the efficiency of the chemical recovery process.

A stock preparation system to process virgin pulp for the production of ivory board. The system provides high capacity and superior quality pulp at lower energy consumption, fibre loss and operating cost.

Paper machine approach system, fibre recovery and broke system ensuring high operation efficiency at minimum energy consumption and maintenance.

Nine Dragons Paper is part of the Nine Dragons Paper Group, an important global player in the pulp and paper industry with mills in China, Vietnam, Malaysia and the United States.