Andritz MeWa to install pulper rag processing line

Andritz MeWa to install pulper rag processing line
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Andritz MeWa, part of Austria-based technology group Andritz, has received an order from Papier- und Kartonfabrik Varel, a papermaker based in Varel, Germany, to supply a processing line for pulper rags.

Pulper rags are a tightly entangled mechanical compound of metallic and nonmetallic components formed during the pulping of recovered paper or pulp in the vortex center of a pulper.

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 preshredded using the MeWa Universal Rotary Shear UC 1300. The slowly rotating, twin-shaft cutter unit is designed to provide “powerful and, at the same time, energy-saving preshredding of the stringy input material and is “largely insensitive to potential impurities,” according to Andritz.

In a second step, the material is shredded further by a UG 1000 S granulator. By using a replaceable screen with variable screen slot diameters, the customer can influence the throughput and the shredding result. At the end of the process, the metal fractions produced have a high purity level, says Andritz, while the residual fraction can be used as substitute fuel.

Results obtained in extensive material tests in the test center at Andritz MeWa’s headquarters in Gechingen, Germany, convinced Varel to place its order with Andritz, says the firm, as did “the higher throughputs obtained compared to competitors’ equipment.”

Papier- und Kartonfabrik Varel was established in 1947 and is a medium-sized, family-run company with more than 500 employees at its location in Varel. The company produces 850,000 short tons per year of high-grade paper and packaging industry board on four production lines.

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Source: Recycling Today
Andritz MeWa to install pulper rag processing line
<![CDATA[Andritz MeWa, part of Austria-based technology group Andritz, has received an order from Papier- und Kartonfabrik Varel, a papermaker based in Varel, Germany, to supply a processing line for pulper rags. Pulper rags are a tightly entangled mechanical compound of metallic and nonmetallic components formed during the pulping of recovered paper or pulp in the vortex center of a pulper. 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 preshredded using the MeWa Universal Rotary Shear UC 1300. The slowly rotating, twin-shaft cutter unit is designed to provide “powerful and, at the same time, energy-saving preshredding of the stringy input material and is “largely insensitive to potential impurities,” according to Andritz. In a second step, the material is shredded further by a UG 1000 S granulator. By using a replaceable screen with variable screen slot diameters, the customer can influence the throughput and the shredding result. At the end of the process, the metal fractions produced have a high purity level, says Andritz, while the residual fraction can be used as substitute fuel. Results obtained in extensive material tests in the test center at Andritz…