Deinking Plants

The production of high-quality printing papers, newsprint, and tissue from recycled fiber is challenging and mills need to handle more furnish variability, as paper qualities get mixed and contaminated with non-fiber materials.

Valmet offers innovative deinking technologies and cost-effective subprocesses, from pulping to stock preparation for efficient impurity removal, high yield, controllable ash content, and high brightness gain.

Advanced process controls from Valmet further maximizes your process performance to ensure stable quality furnish for the production of high-quality paper grades.

You can also come to visit Valmet Fiber technology Center and test various opportunities to improve your competitiveness through pilot trials.

Valmet solutions

Bale handling and pulping

Solutions for high pulp yield with low operating costs and high operation efficiency.

Recycled fiber cleaning

Valmet’s cleaning solutions for OCC processes include high and low consistency forward and reverse cleaners.

Screening

The Valmet coarse screening concept ensures minimal breakdown of impurities and high sticky removal efficiency. Clean pulp is produced with low energy and wear part consumptio

Flotation

Achieve maximum ink removal with efficient flotation and maximum aeration rate with Valmet Flotation

Thickening, clarification and washing

Optimal thickening solutions improves process efficiency and reliability with simplified maintenance and service procedures.

Dispersion and refining

Valmet’s refiner family includes both conventional conical and double-disc refiners, securing stable operation and a uniform refining result.

Bleaching

Valmet disperger technology secures efficient bleaching process by intense mixing of the bleaching agents with the fibers.

Reject handling

Optimal reject handling systems help you to convert rejects into valuable energy and new raw material sources.

Pilot trials

Valmet’s comprehensive testing opportunities span the entire production process and help you to cover all the bases with thorough testing before an investment commitment.

Automation for OCC lines

Measurements and controls for furnish management ensure the functional properties of the sheet are maintained on-spec during steady state operation and during production changes.

References

Efficient wet strength broke pulping at Essity Collodi TM2

Essity’s Collodi Mill in Italy solved their stock preparation challenges by rebuilding the existing system. TM2 produces colored tissue grades and that places high requirements on stock preparation – and on pulping, especially in terms of capacity, energy consumption and safety.