Aker Solutions Asa · OSL:AKSO

Aker Solutions Asa — Technical Presentation (2014)

23 slides from Aker Solutions Asa's technical presentation, Aug 4, 2014

  1. Slide 1: Large piston diaphragm pumps

    Large piston diaphragm pumps A feasible alternative for multistage centrifugal pumps Wirth TDPM 3000 Hein Krimpenfort (Aker Solutions, Germany) Lindsay Baxter (LM Baxter & Associates, Canada) Jawad Kriel (Paterson & Cooke, South Africa)

  2. Slide 2: Background

    Background The demand for high volume piston diaphragm pumps is increasing ■ Pipeline slurry transportation is increasing ■ Pipelines are getting longer ■ Flow rates are getting higher ■ Flow rate of traditional piston diaphragm pumps is limited ■ An impractical number of traditional piston diaphrag

  3. Slide 3: Proven technology

    Proven technology Triplex single- Duplex double- Triplex double- acting pump acting pump acting pump ++ =+ =+ 700 m³/hr at 120 bar 750 m³/hr at 50 bar 1400 m³/hr at 80 bar

  4. Slide 4: Proven feasibility

    Proven feasibility ee AkerSolutions PD versus Centrifugal Pumping Comparative Study TDPM 3000 Prefeasibility Study Design Report Report Number: 11-1752-01-PM-PRP-0002 Rev 1 January 2014 Paterson & Cooke Consulting Engineers (Pty) Lid ‘Sunrise Park, Sunrise Citcle, Ndabeni, Cape Town, South Africa PO

  5. Slide 5: Project description

    Project description Existing slurry pipeline conceptual design in Angola, Africa Type of slurry Iron ore tailings Length of pipeline Approx. 12 km Pipe diameter 450 mm (OD) SG of slurry 1,4 Slurry velocity Approx. 4,07 m/sec Flow rate 2015 m³/hr Required pressure Approx. 6 MPa Cost of energy € 0,057

  6. Slide 6: Project description: Pipeline profile

    Project description Pipeline profile

  7. Slide 7: Centrifugal pump system

    Centrifugal pump system Design parameters

  8. Slide 8: Centrifugal pump system: Pipeline profile and hydraulic grade line

    Centrifugal pump system Pipeline profile and hydraulic grade line Main pump station Booster pump station

  9. Slide 9: Centrifugal pump system: Process requirements

    Centrifugal pump system Process requirements Pump stations 2 Agitated tailings tank 2 (1 per station) GSW tank 2 (1 per station) Potable GSW supply 2 (1 per station) Nr. of slurry pumps 24 (6 operating + 6 standby, per station) Nr. of GSW pumps 4 (2 per pump station) Slurry pipeline (4 MPa) 12 km

  10. Slide 10: Centrifugal pump system: Process requirements

    Centrifugal pump system Process requirements Operating train  1 slurry feed tank  12 slurry pumps  2 gland seal water pumps Standby train  1 slurry feed tank  12 slurry pumps  2 gland seal water pumps

  11. Slide 11: Centrifugal pump description

    Centrifugal pump system Centrifugal pump description Pump size 16 x 14 Nr. of pumps required 12 Derated head per pump 36 m Derated efficiency 63 % Impeller tip speed 24,5 m/sec Motor shaft power 427 kW Motor rated power 550 kW Total required power 5124 kW Annual parts consumption 25 % of pump capita

  12. Slide 12: Piston diaphragm pump system

    Piston diaphragm pump system Design parameters

  13. Slide 13: Piston diaphragm pump system: Pipeline profile and hydraulic grade line

    Piston diaphragm pump system Pipeline profile and hydraulic grade line Main pump station

  14. Slide 14: Piston diaphragm pump system: Process requirements

    Piston diaphragm pump system Process requirements Pump stations 1 Agitated tailings tank 1 GSW tank 1 Potable GSW supply 1 Nr. of slurry pumps 3 (2 operating + 1 standby) Nr. of charge pumps 2 (1 operating + 1 standby) Nr. of GSW pump 2 (1 operating +1 standby) Slurry pipeline (8 MPa) 12 km

  15. Slide 15: Piston diaphragm pump system: Process requirements

    Piston diaphragm pump system Process requirements Operating pumps  1 slurry feed tank  2 slurry PD pumps  1 charge pump  1 gland seal water pump Standby pump  1 slurry PD pumps  1 charge pump  1 gland seal water pump

  16. Slide 16: Piston diaphragm pump description

    Piston diaphragm pump system Piston diaphragm pump description Pump size Wirth TDPM 3000 Nr. of pumps required 2 Derated head per pump 432 m Derated efficiency 92 % Stroke rate 42 per minute Motor shaft power 1807 kW Motor rated power 2100 kW Total required power 3614 kW Annual parts consumption 5 %

  17. Slide 17: Cost comparison: Capital costs

    Cost comparison Capital costs

  18. Slide 18: Cost comparison: Annual operating costs

    Cost comparison Annual operating costs  Excluding costs of gland water  Excluding maintenance labour costs

  19. Slide 19: Cost comparison: Payback time

    Cost comparison Payback time  Excluding costs of gland water  Excluding maintenance labour costs

  20. Slide 20: Sensitivity analysis

    Sensitivity analysis Annual operating costs variations:  Cost of energy: € 0,02 – 0,10/kWh  Cost of parts consumption : 15 – 65 % (of investment of centrifugal pumps) Payback time:

  21. Slide 21: Sensitivity analysis: Payback time

    Sensitivity analysis Payback time:

  22. Slide 22: Summary

    Summary  Large piston diaphragm pumps are a feasible alternative for many multistage centrifugal pump applications  Depending on conditions, payback time is less than 2 years  Wirth TDPM 3000 is based on proven technology  Piston diaphragm pumps offer certain technical advantages when compared t

  23. Slide 23: Thanks to the co-authors

    Thanks to the co-authors  Jawad Kriel, Paterson & Cooke, Cape Town, South Africa  Lindsay Baxter, LM Baxter & Associates, Cambridge, On, Canada

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