Custom-tailored pump solutions for various industries.
ANDRITZ largest medium-consistency pump
Proven performance at highest efficiency
ANDRITZ sets new benchmarks in medium-consistency pumping technology with an efficiency of 74% (BOP) at 8% consistency. This is the highest efficiency ever achieved in this application range.
Six of these pumps deliver reliable performance at a capacity of 4,400 admt/d. They supply a washer designed for 7% consistency and represent the largest medium-consistency pumps built by ANDRITZ. This pump technology supports consistencies of up to 16% depending on downstream equipment.
Fast manufacturing enabled full-range testing at the ANDRITZ pump test center in Graz. The results confirm outstanding performance well above industry standards where typical efficiencies remain below 70%.
The pump ensures smooth operation with a stable characteristic curve and no discontinuities. During pump testing at 12% consistency the pump achieved a capacity of 2,000 m³/h, which is equivalent to 7,200 admt/d.
Like all ANDRITZ medium-consistency pumps these pumps are equipped with the innovative SMARTSEP system. The system removes air from the pulp suspension and transfers it to the degassing line using a specially designed separation impeller. At the same time fibers carried with the air are safely returned to the pump ensuring zero fiber loss. Degassing valve control is simple and reliable: pump running means valve open and pump stopped means valve closed. Operation is stable regarding degassing and fiber loss.
Operational success across leading pulp mills
At one of the world’s largest pulp lines in Fray Bentos Uruguay the ANDRITZ medium-consistency pump achieved energy savings of 7 to 15% compared to a previously installed competitor pump. SMARTSEP simplifies control and ensures stable operation. Degassing is stable with no fiber losses since start-up.
At the Mondi Syktyvkar mill in Russia ANDRITZ medium-consistency pumps were integrated into an existing plant as part of a modernization project. The integration challenges were successfully managed and the pump’s easy handling ensured a smooth start-up.
In the Fibria Jacareí pulp plant in Brazil an existing medium-consistency pump was replaced with an ANDRITZ pump. Despite the higher pumping capacity the existing motor could be retained, resulting in energy cost savings of more than one-third.
