Austria-headed international technology group Andritz AG has announced that it has been awarded orders from Nine Dragons Paper (Holdings) Ltd to supply equipment and key process technologies for five of its pulp mills in China. Start-ups are scheduled for 2022 and 2023.
Nine Dragons Paper is engaged in the production and sale of a wide range of packaging paperboard products. 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 for the company is over 18 million tonnes making it the largest in Asia.
In 2018, Andritz supplied a total of five circulating fluidized bed (CFB) “PowerFluid” boilers installed at Nine Dragons Paper locations in Taicang, Quanzhou, Yongxin, Chongqing, and Dongguan.
The scope of supply on EPS basis for these orders, the value and mill location of which has not been disclosed, includes the following equipment:
- A white liquor plant with a capacity of 10 500 m3/d, including a recausticizing plant and an Andritz LimeKiln. The recausticizing plant delivery includes a green liquor cooler, a LimeSlake slaker-classifier, three causticizer tank agitators, a drum filter for dregs handling, a LimeWhite filter for white liquor filtration to achieve high white liquor quality, and a LimeDry filter for efficient lime mud filtration to ensure high lime mud dryness and consequently a low heat consumption in the kiln. The Andritz LimeKiln, with a capacity of 950 t/d burnt lime, will be equipped with a high-efficiency LimeCool sector cooler.
- A recausticizing plant with a capacity of 5 800 m3/d.
- Two ash re-crystallization (ARC) systems with ash handling capacities of 400 t/d and 200 t/d respectively, to treat the ash from the electrostatic precipitator (ESP) by decreasing the chloride and potassium content while recovering sodium and sulphate.
- A recausticizing plant with a capacity of 5 800 m3/d.
- An ash re-crystallization (ARC) system with an ash handling capacity of 200 t/d to treat the ash from the ESP by decreasing the chloride and potassium content while recovering sodium and sulphate.
- Three recausticizing plants with a capacity of 2 500 m3/d each.
