BTG TTC Presentation Albany Panel 2010

5/22/2018 BTG TTC Presentation Albany Panel 2010

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An integrated approach to develop cost-effective

Jeff Peters

Tissue Panel Acapulco

October 27-29, 2010Shift Target = $$$


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Program Overview:

, ,

The Process

Six Key Elements Process Measurement: Back to the Basics

Plan Development

Generating the Data a o o w e a a

Program Implementation

Process improvement rule #1: If you dont measure it, how can

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Tissue ProcessInputs: Outputs:

FurnishFiberAsh S eed nesFreeness

BrightnessRetention

Crepe ratio

Efficiency

Tissue machine

Ionic demand

Zeta Potential

Chemical dosages

Handfeel

Softness Andritz AG 2007

PerformanceFelt Performance

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Process Overview

Control Quality

Water

RunnabilityFiber(Sheet Breaks)

Operation Improvement

Additives

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Reduce Total Cost of Ownership


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Variabilit Reduction

Increased Production

Optimize Chemical Costs

Stabilize process

Improved Pulp Quality

Operating FlexibilityShift Target = $$$

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O ortunities for Control Use Measurements from the field:Use Measurements from the field:

Brightness & Fluorescence Fiber Characteristics em ca es ua Freeness & Retention

Charge & Zeta Potential Quality Data

,, Overall process solutions (wet-end through converting) Each project has a sustainable payback

66 BTG 2010

o a on ro ra egy


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Data Gatherin Case Study WS/non-WS grades

pportunities or Improvement Brightness & ERIC u p ream ar a y

Chemical Additive Control

Sheet Defects

Cre in Performance

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Survey Data Analysis

S stem Char e

Wet Strength GradesWet Strength Grades Non Wet Strength Non Wet Strength

-0.200

0.000

0.200

0.400

System Cationic

Machine Runnability Problems

-0.800

-0.600

-0.400

Charge(ml)

-1.600

-1.400

-1.200

-1.000

-1.800

Date/Time

Machine Chest Headbox Whitewater

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Surve Data Anal sis - ConsistencRange Chart for Machine Chest

Blade Transmitter

0.500

0.600

.

Variation within blade transmitter capability,

but too variable for on-line freeness control

0.300

0.400

erenc

e=Lab-Tx

0.100

0.200

Dif

0.000

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09

06/17/

09

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06/18/09

06/18/09

06/18/09

06/18/09

7/8/20

0911

:00

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0914

:20

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0912

:30

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0914

:30

7/10

/2009

10:00

7/16

/2009

10:00

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/2009

13:00

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14:30

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9:30

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/2009

11:15

7/17

/2009

14:30

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Range UCL RBAR LCL


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Plan Im lementation Install high precision consistency transmitter

Install on-line freeness measurement/control

-

Evaluate high performance creping blades

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Results to Date Fiber Cost Savings: RET-2502 - Optical Consistency Transmitter

Reduced consistency variation vs. blade type transmitter

Estimated fiber cost savings - $210,000/yr

Fines/Ash Management: PCT-20 On-line Charge Control Improved fines/ash retention resulting in reduced fiber consumption Closed-loop control to optimize cationic polymer dosage rate

Refiner Energy Reduction: DRT-5500 On-line Freeness Control Identified and verified refiners were working the fiber Expert analysis refiners undersized for process Modify refining strategy and/or install additional refiner Closed-loop refiner control to minimize energy consumption

Improved Sheet Quality: High Performance Creping Blades Reduced bulk variation Reduced lost time vs. steel blades blade life 60+ hrs vs. 12 hrs

1111 BTG 2010

mprove w n er runna y no crac e e ges


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Summar Understanding wet-end variability is the first step in process

improvement emem er,

if you dont measure it, how can you improve it?

Improved wet-end stability more uniform sheet to the Yankee

improved creping performance reduced MD and CD variation

More uniform sheet to the rewinders and convertin more quality cases/day out the door significant overall mill profitability improvement

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Latest Technolo Develo ments

Global economy corrections

BTG continued to invest

Fiber Cost Optimization

nergy os e uc on Chemical Cost Savings

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Complete Process Optimization


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Fiber Cost O timization RET-2501 and 2502

RET-2502 measures total and ash consistency

Reduce consistency variation

RET-5503 Optical technology for non-pressured applications

Measures total and ash consistency Install at white water chest for a fines/ash management program to

optimize tissue softness and absorbency

Reduced process variation

Reduced basis weight variation

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, .$100,000+/year in fiber


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Fiber Cost O timization MEK-3000 TwinTorgueTM

Handling consistencies from 1 16% Reduce consistency variation Small and lightweight for easy handling and exceptional

installation flexibility

MBT-2500 Moving Blade Transmitter Active type unit or measuring consistencies rom 1.5 8 Excellent choice for less demanding applications

ene s MEK-3000 is a very versatile unit capable of accurately

controlling consistency of various pulp types over a broadran e of consistencies

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MBT-2550 is the best overall value for your money


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Fiber Cost O timization

Measure five wavelengths Blue, green, red

NIR or optional UV

Brightness

Color (L*, a*, b*)

ERIC (Effective Residual Ink

Benefits

Chemical dosageoptimization

Count) Fluorescence (OBA)

Fiber brightnessoptimization

Fiber blending

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Ener Cost Reduction DRT-5500 Freeness Meter

-

Closed-loop refiner control

Minimize refiner energy by:

Optimizing consistency control Controlling fiber freeness level to optimize sheet

properties

Benefit More uniform sheet properties

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Reduced energy consumption


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Chemical Cost Savin s PCT-20/TSS-71

On-line charge Benefits

measurement

Mutek PCD-04 technology

Up to 4 sample points

upsets Fines/ash management

Thick and thin stock

Improved Yankee coating

control mprove s ee qua y

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Com lete Process O timization TTC (Total Tissue Capabilities Program)

Develop control strategies to eliminate and/or minimizeupset conditions

Yankee creping optimization

High Performance Creping Blades

BenefitsShift Target = $$$

Highest quality, most uniform sheet to converting

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Maximize number of cases per day out the door

Documents

BTG TTC Presentation Albany Panel 2010