Andritz MeWa has announced that it will supply a new processing line for pulper rags to Papier- und Kartonfabrik Varel, Germany. Pulper rags are a very tightly entangled mechanical compound of metallic and non-metallic components formed during pulping of recovered paper or pulp in the vortex center of a pulper.
Andritz MeWa, a division within the Austria-headed international technology group Andritz, has announced that it has received an order from Papier- und Kartonfabrik Varel, based in Varel, Germany, to supply a processing line for pulper rags.
Established in 1947, Papier- und Kartonfabrik Varel is a medium-sized, family-run company that produces around 850 000 tonnes per annum of high-grade paper and board on four production lines at its Varel facility. Pulper rags are a very tightly entangled mechanical compound of metallic and non-metallic components formed during pulping of recovered paper or pulp in the vortex center of a pulper.
According to a statement, Andritz MeWa will supply a two-stage process for treatment of the pulper rags. In the first section of the plant, the rags will be pre-shredded using the Universal Rotary Shear UC 1300. The slowly rotating, twin-shaft cutter unit is ideally suited for powerful and, at the same time, energy-saving pre-shredding of the stringy input material and is largely insensitive to potential impurities.
In a second step, the material is shredded further in the UG 1000 S granulator. By using a replaceable screen with variable screen slot diameters, the customer is able to influence the throughput and the shredding result. At the end of the process, the metal fractions produced have a high purity level. The residual fraction is used as a substitute fuel.
According to Andritz MeWa, the “convincing” results obtained in extensive material tests in the test center at its headquarters in Gechingen, Germany, were decisive in placing the order with Andritz MeWa, in addition to the higher throughputs obtained compared to competitors’ equipment.
