1 Innovative Voith products to use the full potential from your furnish AFCP | Buenos Aires | 2015-05-13 | Oliver Lüdtke

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Innovative Voith products to use the full potential from your furnish

AFCP | Buenos Aires | 2015-05-13 | Oliver Lüdtke

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Edge runner

Innovative Products as a results of continous development and a long history in paper making

TwinFlo double disc refiner with splined hub – reliable, easy to maintainAFCP | Buenos Aires | 2015-05-13 | Oliver Lüdtke

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Voith Pluralis LineOptimization of refining to your requirements

AFCP | Buenos Aires | 2015-05-13 | Oliver LüdtkeAFCP | Buenos Aires | 2015-05-13 | Oliver Lüdtke

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What are the targets of refining?

Refining adjusts the fiber properties and consequently the technological properties of the furnish during the production process and the quality of the final paper

Most important parameters are:

1. Strength properties (wet and dry)

2. Air permeability

Formation

1. Bulk

It´s not the initial target

to increase the

dewatering resistance!

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Intensity of refining and specific edge load

High intensity

Low intensity

SAME power transfer!

In a long term research at Voith it was proven that each fiber species has an refining intensity where the properties are fully developed and the required energy consumption is on low level.


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Adjusting the fiber structure by refining


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Rough enviroment of papermaking

With the recycled paper a lot of trash is fed into the stock prep system

When problems happen in the system, sometimes it ends up in the refiner or disperger



Pluralis Line - The filling family for all raw materials and paper characteristics

Pluralis Line Designation Typical stock mixture Typical working range

Pluralis SSF super short fiber- never dried short fiber pulp- 100% short fiber pulp

0.3 – 0.6 J/m

Pluralis SF short fiber- short fiber pulp with up to 10% long fiber pulp (reinforcement fibers)

0.5 – 0.8 J/m

Pluralis IF intermediate fiber- pulp mixtures with up to 1/3 long fiber portion- secondary pulps (short to medium fiber lengths)

0.7 – 1.1 J/m

Pluralis LF long fiber- long fiber pulps- secondary fiber pulps (medium to long fiber lengths)

1.0 – 1.6 J/m

Pluralis AO American OCC- 100% AOCC and fractionated long fiber fractions from AOCC/EOCC

1.4 – 2.2 J/m

Pluralis CF coarse fiber- unbleached long fiber pulps- high kappa pulps

1.8 – 3.0 J/m

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Solutions to ensure proper refining

Tough and wear resistant alloys

Ductile bending after foreign part enter the refiner

Pluralis SSF

•1,3 mm bar width

•6,0 mm bar height

•Alloy STT

That filling could be used until next maintenance shut downAFCP | Buenos Aires | 2015-05-13 | Oliver Lüdtke

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Refining performance is in the detailsInnovative inlet design has an influence with contaminant rich pulps

Adapted groove design from inner to outer diameter

Examples for NonVoith fillingsVoith Pluralis AO


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Pluralis refines more fibers homogeneously

• Highly sectored design means uniform treatment from ID to OD

• A controlled fiber guidance enables more fibers to be treated

• Constant or widening groove opening from ID to OD is ideal for handling contaminants

Sector


Guidance

This Is The Pluralis Effect!


Pluralis fillings for TissueIncreased volume and high softness

Volume and softness are essential factors in the production of tissue paper.

Fines from the refining process would be very unwanted here.

Refining with less edge load preserves volume and prevents the formation of fines.

As is known, Pluralis is a very fine filling which implements gentle refining.

Many satisifed customers confirm these favorable characteristics when refining for tissue.


Statements from satisfied customers that changed to Pluralis refiner fillings

• Pluralis plates resulted in same sheet strength at higher freeness (CSF)

• Higher headbox freeness resulted in more then 100 m per min machine speed increase

• Caliper (bulk) increased 3%-5% while maintaining tensile specs

• Lower fines and improved drainage

• The operators like the plates, the refiners are much more sensitive to slight changes in load

• Able to shut down one refiner on some grades while maintaining tensile specs

• Approximately 19% energy savings

• Less dust in converting

• 25-45% lower starch usage while maintaining tensile targets

• Reduced consumption of wet strength resin and improved haptics


Pluralis Line not only for Voith refiner

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TheWall – New Design with Wall TechnologyAFCP | Buenos Aires | 2015-05-13 | Oliver Lüdtke

PatentedPatented

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ONP/OMG Grades with 2nd deinking loop and dispersion System

MWP/OCC Grades for TL/CM with single fractionation and dispersion system

Dispersion System in Stock Preparation


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Dispersion System and Benefits


Dispersion System (CDS from Voith) Benefits

Reduction of dirt specks

Brightness gain

Reduction of stickies

Strength gain

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TheWall fillingLow teeth filling

Des

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Sp

ec.

Ap

pli

.

Highest contact area to the fibers

High wall between teeth

Up to 8,5 mm gap operation

Wide range of operation Highest visual quality demands

Highest wear applications

Flat body design

Near zero gap operation

High wear applications

Voith Product Portfolio for Disperger Fillings

High teeth filling

Increased number of teeth

Ramp between teeth

Up to 3,0 mm gap operation

High visual quality demands

High wear applications


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Dispersion ProductsLatest Technology - TheWall

• The gaps between the teeth are completely closed by TheWall - the probability of stock treatment is increased

• Best technology results at a given specific energy also with gaps up to 8.5mm

• No risk of plate contact

TheWallwith a wall between the teeth


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Performance Enhancing Features of TheWall


Rotor vane

Improves feeding

Aggressive breaker bars

Performs deflocking and fluffing action

Improving stock flow

TheWall

A row of Walls must be traversed by pulp in multiple successions

1 2 3

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Case Study Summary at StoraEnso EilenburgHD4B Disperger

Comparison of Technical Data

Results and Benefits•13% Reduction of energy for similar dirt speck reduction•48% Improvement in sticky reduction at similar applied energy•Significant improved hyper washing value •25% Longer filling life

Value Added•13% energy savings = 74.720 €/year•Cost saving in oxidation agents•Higher flexibility with plate gap positioning

→ quality improved with less energy!

Before AfterFilling type Other Supplier TheWallSpec. energy [kWh/t] 63 55Life time [months] ~ 4 >5 monthsProduct: Newsprint, SGP (100%)

After – TheWall

Before – Other Supplier



Contact:Oliver LüdtkeGlobal Product Manager Fiber TreatmentTel. +49 151 277 [email protected]

Documents

1 Innovative Voith products to use the full potential from your furnish AFCP | Buenos Aires | 2015-05-13 | Oliver Lüdtke