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Modeling of profitability increase of a deinking plant

Modeling of profitability increase of a deinking plant. Harald Janisch. Agenda. Introduction of Norske Skog Bruck Goals of the diploma thesis Mill balance in FlowMac Modeling of profitability increase of a deinking plant. Agenda. Introduction of Norske Skog Bruck

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Modeling of profitability increase of a deinking plant

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  1. Modeling of profitability increase of a deinking plant Harald Janisch

  2. Agenda • Introduction of Norske Skog Bruck • Goals of the diploma thesis • Mill balance in FlowMac • Modeling of profitability increase of a deinking plant Harald Janisch

  3. Agenda • Introduction of Norske Skog Bruck • Goals of the diploma thesis • Mill balance in FlowMac • Modeling of profitability increase of a deinking plant Harald Janisch

  4. Machines PM 3 PM 4 Width (cm) 530 645 Quality Newsprint LWC and MWC Grades 42 – 49 g/m² 51 – 90 g/m² Production capacity 130.000 t/a 280.000 t/a Pulp lines DIP 1 DIP 2 Wood line PGW PGW Norske Skog Bruck Employees (31.12.07): 505 Harald Janisch

  5. Agenda • Introduction of Norske Skog Bruck • Goals of the diploma thesis • Mill balance in FlowMac • Modeling of profitability increase of a deinking plant Harald Janisch

  6. Goals of the diploma thesis • Creating of a complete fiber and water balance of the whole paper mill • Mill balance in FlowMac • Modeling of profitability increase on the DIP 1 Harald Janisch

  7. Agenda • Introduction of Norske Skog Bruck • Goals of the diploma thesis • Mill balance in FlowMac • Modeling of profitability increase of a deinking plant Harald Janisch

  8. Mill balance in FlowMac Harald Janisch

  9. Modeling DIP 1 – pulping and HD cleaning Harald Janisch

  10. Modeling DIP 1 – screening Harald Janisch

  11. Modeling DIP 1 – flotation Harald Janisch

  12. Modeling DIP 1 – thickening Harald Janisch

  13. Modeling DIP 1 – pulp storage Harald Janisch

  14. Modeling DIP 1 – filtrate storage Harald Janisch

  15. Agenda • Introduction of Norske Skog Bruck • Goals of the diploma thesis • Mill balance in FlowMac • Modeling of profitability increase of a deinking plant Harald Janisch

  16. Profitability increase DIP 1 Background • Increase capacity on PM 3 • Increase share of recovered fiber on PM 3 • Save energy costs on PGW Harald Janisch

  17. Profitability increase DIP 1 Goals • Finding the main bottlenecks on DIP 1 • Modeling of profitability increase on DIP 1 • Modeling of capacity increase on DIP 1 • Increase capacity from 270 t/d to 300 t/d Harald Janisch

  18. Thickening DIP 1 – process old Harald Janisch

  19. Thickening DIP 1 – new thickener 70 t/d Harald Janisch

  20. Thickening DIP 1 – new disc filter 90 t/d Harald Janisch

  21. Thickening DIP 1 – new disc filter 150 t/d Harald Janisch

  22. White water PM 3 White water PM 3 Recovered paper Pulp to PM 3 Pulping HD Cleaning Screening Flotation Thickening Reject Reject Reject Reject Volume flows DIP 1 Harald Janisch

  23. Profitability increase DIP 1 Improved filtrate consistency Harald Janisch

  24. Modeling capacity increase DIP 1 Summary: • A complete balance for fiber, water and temperature was built for the whole mill. • First analysis for optimization on DIP 1 • 8 hours modeling work for different scenarios to increase profitability on DIP 1. • 20 minutes for the management to understand the problem and decide to do the investment. Harald Janisch

  25. Thank you for your attention! harald.janisch@norskeskog.com

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