EN

InfiltraDiscfilter

InfiltraDiscfilterPioneering Dewatering with HiCon 2.0 and BaglessPlus Technology

Thanks to the latest HiCon 2.0 technology, the consistency limit can be increased significantly.

InfiltraDiscfilter (IDF) is the pacemaker of dewatering, operating without any filter bags.

Thanks to the latest HiCon 2.0 technology, the consistency limit can be increased significantly. IDF disc filters ensure a reliable and almost maintenance-free operation.

BlueLine Advantages

Higher Runability Higher Runability

The BaglessPlus discs achieve running times of up to 18 years.

Reduced Fiber Loss Reduced Fiber Loss

The outstanding filtrate quality leads to a long lasting reduction in fiber loss. In particular for save-all applications, high fiber losses due to holes and cracks in the bags can be avoided because no damages of the bags occur.

Lower Maintenance Cost Lower Maintenance Cost

By using the newly developed BaglessPlus disc filters without filter bags, the time- and cost-intensive replacement of worn-out filter bags can be avoided.

Lower Water Consumption Lower Water Consumption

The sealing technology and the optimized filtrate valves effectively separate fibers from filtrates. Likewise, the outstanding filtrate quality allows savings in the amount of fresh water used.

Benefits of InfiltraDiscfilter

Water and Fiber Savings

Water and Fiber Savings

  • Increased cleanliness of water loops
  • Utmost quality of super clear filtrate
  • Replacement of fresh water by filtrate
  • Saves cost in fresh water preparation
  • Fewer solids get lost to effluent treatment
Excellent Filtrate Quality for Years

Excellent Filtrate Quality for Years

  • BaglessPlus segments have a very long lifetime
  • Sealing concept ensures clean filtrates
  • No contamination of superclear filtrate
  • IDF filtrate quality sets the benchmark
  • Large producers rely on BaglessPlus
Reliable Operation

Reliable Operation

  • Proven concept for more than 18 years
  • All IDF disc filters equipped with BaglessPlus
  • Most robust disc filter on the market
  • Can withstand harshest conditions
  • Reliable knock off and cleaning
Minimum Maintenance Effort

PP filter bag changing procedure > Omitted with BaglessPlus

Minimum Maintenance Effort

  • Search for damaged bags is a nuisance
  • Rebagging procedure takes hours
  • BaglessPlus is reliable for years
  • No spare part handling needed with BaglessPlus
  • BaglessPlus is HP cleaning resistant

Our Solutions

Leading Dewatering Technology: InfiltraDiscfilter with BaglessPlus Discs

Leading Dewatering Technology: InfiltraDiscfilter with BaglessPlus Discs
  • 5.7 m (IDF570) and 3.7 m (IDF370) disc diameter possible
  • Up to 24 discs
  • Available with or without HiCon 2.0 technology
  • For fiber recovery and thickening
  • Fiber and vacuum proof sealing design
  • Robust operation with BaglessPlus
  • Based on famous Thune DF design

BaglessPlus Technology

BaglessPlus Technology
  • 5.7 m, 3.7 m and other disc diameters
  • Up to 20% more throughput
  • Proven reliability for 18 years
  • Eliminates frequent bag change
  • Leading papermakers rely on BaglessPlus

HiCon 2.0 Technology

HiCon 2.0 Technology
  • Safe guidance of discs in solid rails; eliminates risk of crash
  • Inlet consistencies up to 2% possible
  • Significantly reduced pumping power
  • Up to 20% more throughput
  • HiCon guiding system and BaglessPlus filter discs also available as rebuild kit

Disc Filter in Tissue Systems

Disc Filter in Tissue Systems
  • Consistent excellence in filtrate quality
  • Water, fiber and chemical savings
  • Long lifetime of tissue machine fabrics
  • Replacement for cloth filter or flotation

Disc Filter in Recycled Paper Plants

Disc Filter in Recycled Paper Plants
  • Outstanding robustness
  • More capacity to increase production
  • Available with HiCon option
  • Improved yield and less fiber loss

Saveall Disc Filter

Saveall Disc Filter
  • 10 to 50 ppm filtrate quality for years
  • Key to reduced fresh water consumption
  • Improves lifetime of paper machine fabrics and felts
  • Can be used for broke thickening

Rebuild and Upgrade Options

Rebuild and Upgrade Options
  • Vast portfolio to upgrade many brands
  • Overcome low disc filter capacity
  • Upgrade poor super clear filtrate quality
  • Improve operational reliability
  • Ask for an expert to check your filter

How to Retain Fibers

How to Retain Fibers
  • Replace filter bags with BaglessPlus
  • Avoid felt gaskets
  • Use state-of-the-art sealing concepts
  • Smooth fiber mat formation
  • Always have an eye on your filtrate quality

Dewatering Basics

Dewatering Theory

Dewatering Theory

  • Characteristic curves for each furnish
  • Dewatering time disc filter 30-60 s
  • 70% throughput after half the dewatering time
  • +10°C leads to 5-8% more capacity
  • Vacuum has strong influence
The features of HiCon technology make it especially suitable for high freeness applications.

HiCon in Operation

The features of HiCon technology make it especially suitable for high freeness applications. Due to operation at high inlet consistencies, the filter can fully take advantage of the furnish's good dewatering properties.

The IDF disc filter can be operated at very high fiber mat thickness and shows an excellent knock off.

Your Project

Production Increase

Production Increase
  • A new InfiltraDiscfilter with high surface BaglessPlus discs is the solution for limited dewatering capacity
  • For a system rebuild that calls for additional dewatering capacity, IDF disc filters are most suitable
  • Your fiber recovery system is outdated and filtrates cannot be used in the paper machine? IDF offers great cost reduction 
  • You are planning to install a new paper or tissue machine? Ask for InfiltraDiscfilter, which sets today’s benchmark

Saving Water and Process Chemicals

Saving Water and Process Chemicals
  • State-of-the-art specific water consumption goes down to 3.5 l/kg for testliner and tissue production lines
  • Super clear filtrate from IDF disc filter provides an excellent source for fresh water replacement
  • The more fresh water is used the more process chemicals are washed out of the system
  • The benefits of fresh water savings can be significant. Ask for an estimate!

Environmental, Effluent Treatment and Yield

Environmental, Effluent Treatment and Yield
  • Recover fiber from your effluent streams to save cost of effluent and sludge handling
  • Protect your effluent treatment plant from overload by installing a disc filter
  • Strict environmental legislation: take advantage of cleaner water loops due to excellent filtrate quality
  • Old/inefficient effluent treatment plants may be relieved by installing BaglessPlus technology

Common Problems and Their Root Causes

Issue Possible Reason
Low Production
  • Poor knock off due to plugged nozzles
  • Clogged filter bags
  • Insufficient cleaning of discs
  • Low vacuum
  • Low level in vat
Poor mat formation
  • Low vacuum
  • Inlet consistency too low
  • Low level in vat
High solids content in filtrates
  • Broken filter bags
  • Broken filter segments
  • Damaged sealings
  • Sweetener too low
High motor load
  • High inlet consistency
  • Low filter speed
  • Discs touching chutes

 

Tools

Check Your Filtrate Quality

Save All Disc Filter

My white water
Cons. (%)

Thickening Disc Filter

My inlet to disc filter
Cons. (%)
Ash (%)
My filtrate quality
Clear cons. (mg/l)
Superclear cons. (mg/l)
My filtrate quality
Clear cons. (mg/l)
Reduction of solids in filtrate by installing IDF technology *
Clear
Superclear
Clear
*) Given values are indicative, please contact Voith for detailed information

Note:
Please use a decimal comma for typing in numbers.

Determine Your Washout Rate

Solids which get lost with discharged water
Paper production
t/d
Spec. water consumption
l/kg
Spec. effluent
l/kg
Today's values
Filtrate consistency (clear or superclear)
mg/l
Filtrate to effluent and rejects
m³/d
Values with IDF and Bagless technology
Filtrate consistency* (clear or superclear)
mg/l
*) Can be assessed by Check Your Filtrate Quality

Note:
Please use a decimal comma for typing in numbers.
Benefit
Reduction of solids content in effluent by
mg/l
Fiber which is recoverd by using BaglessPlus and reduction
of solids to primary effluent treatment
 t/d
*) Given values are indicative, please contact Voith for detailed information

Note:
Please use a decimal comma for typing in numbers.

Flow and Energy Calculator

Calculation Cost Saving Pumping Energy

Existing DF HiCon*
Paper production
t/d
% inlet cons.
l/min
*) Typically 1,1 to 2%

Note:
Please use a decimal comma for typing in numbers.
Calculation
Flow
m³/h
l/s
Dilution header line
bar
Pump efficiency
%
Power requirement
kW
Energy cost
ct/kWh
Power Saving
kW
Annual Cost Saving
Eur/a
Relative savings
*) Given values are indicative, please contact Voith for detailed information

Note:
Please use a decimal comma for typing in numbers.

Calculation Production

 l/min
m³/h
m³/s
Consistency
%
Tonnage
t/d

Calculation Flow Velocity

 l/min
m³/h
m³/s
No of pipes
pcs.
Diameter
mm
Cross section
m²
Velocity
m/s

Freeness Converter

°SR value
ml CSF Value
*) Given values are indicative and may slightly deviate depending on type of stock

Note:
Please use a decimal comma for typing in numbers.

Send us your calculated results and your message for customized advice

Reload security code
Enter the captcha code

Mandatory fields

Data are collected and processed in order to provide you with information about our company, products and services. Data will be deleted in particular at your request.
In sending the form, you are agreeing to the processing of these data.
If you require any further information about your general rights in terms of data protection, you can find our data privacy statement on the Voith website.

Contact

Julia Spengler

Global Product Manager Thickening

t +49 751 83 4992

Downloads

Links

Publications

  • InfiltraDiscfilter - Pioneering Dewatering with HiCon 2.0 and BaglessPlus

    InfiltraDiscfilter - Pioneering Dewatering with HiCon 2.0 and BaglessPlus

    PDF
    English German
  • Product portfolio for excellent dewatering performance – Disc filter upgrade

    Product portfolio for excellent dewatering performance – Disc filter upgrade

    PDF
    English German

Related products and services

Voith Paper Newsletter

Subscribe to the Voith Paper newsletter
Voith Paper Newsletter
Subscribe to our newsletter and stay informed about news in the world of Voith Paper

Always get the latest updates on new products and services, projects, campaigns and success stories as well as upcoming exhibitions and conferences – straight to your inbox.

Subscribe now
RIGHT OFFCANVAS AREA