The new BCTMP line uses birch as raw material and has a design capacity of 395 admt/d. The high-efficiency mechanical pulping system begins with a chip washing system, a pre-steaming unit, and an impregnation system equipped with an MSD Impressafiner. It is followed by the first refining stage, comprising an ANDRITZ high-consistency S2070 refiner with a 15-MW drive, while the second stage will use a newly developed ANDRITZ low-consistency TwinFlo "Strong" refiner. In addition, the reject refining system will contain an ANDRITZ low-consistency TwinFlo refiner to ensure lowest energy consumption in combination with excellent pulp properties in both mainline and reject low-consistency refining.
ANDRITZ P-RC APMP technology with integrated bleaching stage right after the high-consistency refiner ensures highest brightness at minimum chemical charges. The low-consistency screening system features extremely low shive content in the final pulp, which will be dewatered on two ANDRITZ twin wire presses and a disc filter to guarantee excellent pulp washing and thickening.
State-of-the-art, low-energy ANDRITZ FibreSolve FSV pulping as well as the latest developments in low-consistency refining will be included in the ANDRITZ stock preparation system. In addition, the approach flow system is designed for three layers, each fitted with the compact ANDRITZ ShortFlow Blending System, low-consistency cleaning, and modern headbox screening. The broke system will also be part of the delivery together with the fiber recovery systems.
The ANDRITZ GROUP
ANDRITZ is a globally leading supplier of plants, equipment, and services for hydropower stations, the pulp and paper industry, the metalworking and steel industries, and for solid/liquid separation in the municipal and industrial sectors as well as for animal feed and biomass pelleting. Other important business segments include automation and service business. In addition, the international Group is also active in the power generating sector (steam boiler plants, biomass boilers, recovery boilers, and gasification plants) and in environmental technology (flue gas cleaning plants) and offers equipment for the production of nonwovens, dissolving pulp, and panelboard as well as recycling plants. The publicly listed technology Group is headquartered in Graz, Austria, and has a staff of approximately 25,200 employees. ANDRITZ operates more than 250 sites in over 40 countries.
ANDRITZ PULP & PAPER
ANDRITZ PULP & PAPER is a leading global supplier of complete plants, systems, equipment, and comprehensive services for the production and processing of all types of pulp, paper, tissue, and cardboard. The technologies cover the processing of logs, annual fibers, and waste paper; the production of chemical pulp, mechanical pulp, and recycled fibers; the recovery and reuse of chemicals; the preparation of paper machine furnish; the production of paper, tissue, and cardboard; the calendering and coating of paper; as well as the treatment of reject materials and sludge. The service offering includes system and machine modernization, rebuilds, spare and wear parts, on-site and workshop services, optimization of process performance, maintenance and automation solutions, as well as machine relocation and second-hand equipment. Biomass, steam, and recovery boilers, as well as gasification plants for power generation, flue gas cleaning plants, plants for the production of nonwovens, dissolving pulp, and panelboard (MDF), as well as recycling plants are also part of this business area.