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Andritz starts up pulp production technologies and key process equipment for Sun Paper's new mill in Beihai, China

International technology group Andritz has successfully started up key pulping process equipment for Sun Paper's new pulp mill (Guangxi Sun Paper) in Beihai, China.

The evaporation plant at the mill started up ahead of schedule, with all other process islands starting up on time. Moreover, the wet lap plant achieved production close to the guaranteed values immediately after start-up.

The Andritz scope of supply included the following:
• Wet lap system with two production lines for a capacity of 1,120 admt/d bleached hardwood kraft pulp, each consisting of a Twin Wire and a Heavy-Duty Press for pulp dewatering, a cutter-layboy, and a baling line. The wet lap system has the highest capacity ever installed in China.

• White liquor plant with a capacity of 10,500 m3/d, comprising major recausticizing equipment and an Andritz LimeKiln. The new Andritz LimeKiln, with a capacity of 950 t/d, has a multifuel burner and a high-efficiency LimeCool sector cooler.

• Evaporation plant with a high-concentration section for a total evaporation capacity of 1,100 t/h and a final dry solids content of 85%.

• Ash re-crystallization (ARC) system, with an ash handling capacity of 400 t/d, to treat the ash from the electrostatic precipitator by decreasing the chloride and potassium content while recovering sodium and sulfate.


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