1. Pressure Filtration

Pressure Filtration

DELKOR designs and supplies reliable filter presses for flexible operation and easy maintenance suitable for a wide range of dewatering applications, from minerals concentrates and tailings filtration, to polishing and electrolytic processes, from coarse to very fine materials in the mining, aggregates, chemical, iron & steel, food processing and water treatment sectors.

DELKOR pressure filters can be fully customized based on process and customer requirements in fact the opening/closing can be fully automatic, opening at once or one-by-one, semi-automatic and manual.
If required, the filtration process can be enhanced further reducing the moisture content by using membrane plates and/or blowing the cakes with compressed air. Application based the process can require to wash the cakes removing undesired chemical substances dissolved in the slurry.


The filter press can feature a core blow system and a plate/cloth shaker device to prevent contamination of the final product and ensure a proper cake discharge. Based on the client’s process requirements, a fully automatic cloth washing device operates at high or low pressure, thus regenerating the cloths every cycle or after a pre-set amount of cycles.
Tenova DELKOR services range from lab and site test work, process optimization and flow sheet design to installation, commissioning and aftermarket support.


DELKOR FAST FP allows shorter cycle times, higher throughput, availability and safety making the technology perfectly suitable for high capacity and heavy duty applications like concentrate and tailings dewatering (e.g. dry stack tailings).


DELKOR FAST FP consists of a fabricated sidebar frame. As opposed to traditional filter presses, opening and closing of the plate pack is carried out by two synchronized non-reversible screws, while final compression of the plate pack is achieved using a pressurized cushion inflated with water at low pressure.


DELKOR FAST FP features:

  • Complete plate pack opened at once (up to 100 chambers) with the possibility to adjust the   opening speed based on process requirements
  • Recessed, mixed membrane and full membrane plate pack
  • Filter plates with various feed and filtrate ports configured to suit process requirements
  • Automatic plate misalignment detection
  • Double end feeding for fast filling
  • Integrated bomb bay doors with no impact on surrounding items
  • Filter cloth fixing system: barrel neck or single cloth with feed shoe
  • Core blowing
  • Cake air blowing/washing
  •  Fully-automated plate/cloth shaker cake discharge
  • High pressure full face cloth washer / low pressure wash down cloth washer
  • Safety devices in compliance with process and local regulations
  • Remote control of filter press to support operation and maintenance
  • CE marking

DELKOR FP


For small capacity applications DELKOR FP filter press (plate size 630x630mm, 800x800mm, 1000x1000mm, 1200x1200mm and 1500x1500mm) is a perfect alternative to the high capacity fully automated DELKOR FAST FP series offering a reliable and cost effective compromise.


DELKOR FP filter press consists of a fabricated sidebar frame supporting a moving head and filter plates positioned between the head frame and moving head. Opening and closing of the plate pack are carried out by a double acting hydraulic cylinder controlled by a hydraulic power unit.
Opening and closing can be fully automatic, opening at once or one-by-one or batch, semi-automatic and manual, depending from the application.

DELKOR FP features:

  • Complete plate pack opened at once (up to 40 chambers) or one-by-one (up to 120 chambers) or batch (up to 120 chambers)
  • Recessed, mixed membrane and full membrane plate pack
  • Filter plates with various feed and filtrate ports configuration to suit process requirements
  • Double end feeding for fast filling
  • Integrated bomb bay doors with no impact on surrounding items
  • Core blowing
  • Cake air blowing/washing
  • Fully-automated plate shaker cake discharge
  • High pressure full face cloth washer / Low pressure wash down cloth washer
  • Safety devices in compliance with process and local regulations
  • Remote control of filter press to support operation and maintenance
  • CE marking


DELKOR designs, manufactures, assembles and tests its filter presses at Tenova's world class facilities located north of Milan, Italy. Equipped with the most advanced CNC machine tools and with more than 27,500 m2 of covered area, the production facility is capable of meeting the most demanding delivery schedules and quality requirements.



DELKOR filter press product portfolio (technical data subject to change)
Plate size [mxm] Filter press model Opening type Operating pressure* [bar] Chambers min-max [#] Press volume min-max [l] Filtration area [m²] Overall length min-max [mm] Overall height [mm] Overall width [mm] Overall weight min-max [t] Main drive power [kW]
0,63x0,63 DELKOR FP At once 15 19-50 116.8-511.8 7.8-20.3 3570-9800 1960 1550 3.0-3.7 2.2-3.0
0,8x0,8 DELKOR FP At once 15 19-50 221.4-944.2 15.6-44.3 5100-12900 2150 1720 3.9-5.2 3.0-4.0
1,0x1,0 DELKOR FAST FP At once 15 20-98 252-3861 29-169 6600-19600 2350 2550 14-28 8
1,0x1,0 DELKOR FP At once 15 14 - 40 275 - 1540 20 - 70 6000 - 10500 1800 2000 5.8 - 12 4 - 11
1,0x1,0 DELKOR FP One-by-one 15 39 - 120 760 - 4690 55 - 205 6500 - 11500 1800 2000 6.2 - 16.5 4 - 7.5
1,0x1,0 DELKOR FP Batch 15 50 - 120 965 - 3480 74 - 205 7000 - 13500 1800 2000 7 - 15 4 - 7.5
1,2x1,2 DELKOR FP At once 15 14 - 40 380 - 2145 30 - 95 6200 - 12000 2100 2250 11 - 25 5.5 - 11
1,2x1,2 DELKOR FP One-by-one 15 39 - 120 1060 - 6550 80 - 290 7800 - 16000 2100 2250 13 - 29 4 - 7.5
1,2x1,2 DELKOR FP Batch 15 50 - 120 1330 - 6550 105 - 290 7500 - 13500 2100 2250 13 - 30 4 - 7.5
1,5x1,5 DELKOR FAST FP At once 15 20-100 660-9123 69-387 7700-21700 3130 3200 28-58 22
1,5x1,5 DELKOR FP At once 15 14 - 40 620 - 3460 48 - 150 8050 - 11500 2400 2500 18 - 36 5.5 - 15
1,5x1,5 DELKOR FP One-by-one 15 49 - 140 2175 - 12330 160 - 530 8400 - 18000 2400 2500 21 - 35 4 - 7.5
1,5x1,5 DELKOR FP Batch 15 50 - 120 2175 - 10560 160 - 450 9000 - 15000 2400 2500 20 - 35 4 - 7.5
2,0x2,0 DELKOR FAST FP At once 15 20-100 1295-15505 123-711 8870 - 27870 4019 4510 3360 4611 62-105 44-60
2,4x2,5 DELKOR FAST FP At once 15 20-100 2536-17664 129-663 8870 - 27870 4019 4510 3360 4611 73-109 44-60

* = higher operating pressure available upon request

  • Value for Money

    Value for Money

    • Increased throughput through:
      • shorter technical times
      • reduced downtime
  • Efficiency

    Efficiency

    • Increased machine availability through:
      • longer plate and cloth life
      • better edge sealing
      • lighter frame
      • simple control
      • reduced leakages
      • no fire suppression system
  • Safety

    Safety

    • Reduced leakages
    • No plate misalignment
    • No frame bending
    • Low pressure
    • Automatic misalignment detection
  • Service

    Service

    • Highly specialized technicians available on-site within 24 to 48 hours
    • Remote control
  • Digitalization

    Digitalization

    • Remote control for real-time assistance, equipment monitoring and service
  • Technical Excellence

    Technical Excellence

    • Revolutionary design which uses a mechanical screw to open/close the filter plates and a low pressure inflatable water cushion to compress the plates

References

  • Customer
    Project name
    Mondo Minerals Nickel Oy
    Finland
    2016

    DELKOR FAST FP for Fe/As removal in Finland

    The project was awarded in August 2014. It covered design, supply, fabrication, installation assistance and on-site commissioning of the equipment for the on-site plant to refine nickel concentrates into a mixed nickel cobalt hydroxide product. The plant will treat 12,000 t per year of nickel concentrate from Mondo Minerals' talc operations in Finland.

    Project figures

    Slide bar
    1,000 x 1,000
    Mixed membrane pack
    51
    50
    Internal corner
    40
    Barrel neck
    7
    yes
    yes
    yes
    yes
    76
    11 270 x 2 250 x 2 600 (length includes head piece piping)
    Dual-screw closing/locking system
    Inflatable cushion with water
    At once opening/closing
    Washing every cycles @ 4-5bar
    Movable splash panels
    Control panel with PLC and HMI

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