Modeling of profitability increase of a deinking plant

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Modeling of profitability increase of a deinking
plant

• Harald Janisch

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Agenda

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

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Agenda

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

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Norske Skog Bruck
Employees (31.12.07) 505
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Agenda

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

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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

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Agenda

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

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Mill balance in FlowMac
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Modeling DIP 1 pulping and HD cleaning
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Modeling DIP 1 screening
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Modeling DIP 1 flotation
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Modeling DIP 1 thickening
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Modeling DIP 1 pulp storage
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Modeling DIP 1 filtrate storage
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Agenda

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

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Profitability increase DIP 1

• Background
• Increase capacity on PM 3
• Increase share of recovered fiber on PM 3
• Save energy costs on PGW

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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

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Thickening DIP 1 process old
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Thickening DIP 1 new thickener 70 t/d
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Thickening DIP 1 new disc filter 90 t/d
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Thickening DIP 1 new disc filter 150 t/d
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Volume flows DIP 1
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Profitability increase DIP 1

• Improved filtrate consistency

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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.

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Thank you for your attention!

• harald.janisch_at_norskeskog.com