74th Conference on Glass Problems, Volume 35, Issue 1 E-Book

• Herausgeber: John Wiley & Sons
• Kategorie: Fachliteratur
• Serie: Ceramic Engineering and Science Proceedings
• Sprache: Englisch

Seitenzahl: 350

Veröffentlichungsjahr: 2014

Beschreibung

Ceramic Engineering and Science Proceedings Volume 35, Issue 1, 74th Conference on Glass Problems S.K. Sundaram, Editor In continuing the tradition that dates back to 1934, this volume is a collection of 25 papers presented at the 74th Glass Problems Conference, October 14-17, 2013 in Columbus, Ohio. These papers are essential reading for all who need to stay abreast of the latest research in the glass manufacturing field. Content is grouped into the below five sections: * Batching and Forming * Glass Melting * Modeling, Sensing and Control * Refractories I * Refractories II

Leseprobe

Contents

Cover

Half Title page

Title page

Copyright page

Foreword

Preface

Acknowledgements

Batching and Forming

Long Term Results of OXY Fuel Forehearth Heating Technology for E-Glass Fibers

Abstract

Introduction

The Alglass FH Technology

Preparation for Industrial Trials

Industrial Results

Conclusions

References

Glass Production Losses Originating from Contaminants in Cullet and Raw Materials

Abstract

Introduction

Stone Defects Process: Analysis, Sourcing and Verification

Example Case Histories

Conclusions

References

Developing A Better Understanding of Boron Emissions from Industrial Glass Furnaces

Abstract

Introduction

Laboratory Volatile Emission Analysis

Furnace Volatilty Model

Conclusion

References

New Developments of Batch Briquetting

Abstract

1. Introduction

2. Laboratory Testes

3. Half-Industerial Tests

Summary

Outlook

Acknowledgements

Application of Self-Supporting Precious Metal Stirrers in the Melting of Soda-Lime Glass

Introduction

Ceramic Stirrers in Glass Melts

Enhanced Glass Quality Requires Superior Stirring

Dispersion Strengthened Precious Metal Alloy FKS®.→ from Cladding to Load Bearing Component

Advanced Design and Manufacturing Techniques to Fully Exploit the Favourable FKS® Properties

Total Cost Comparison

Conclusion

Glass Melting

Application of an Energy Balance Model for Improving the Energy Efficiency of Glass Melting Furnaces

Abstract

Introduction

Validation of the Energy Balance Model

Energy Balance Simulations: Endport-Fired Furnace

Energy Balance Simulations: Oxy-Fuel Furnace

On-Line Energy Balance Monitoring

Conclusions

Acknowledgements

References

Observation of Batch Melting and Glass Melt Fining and Evolved Gas Analysis

Abstract

Introduction

Batch – Glass Melt Reactions

Description of the Experimental Equipment

Example 1 the Effect of Batch Briquettes Versus Normal and Ground Batches on the Melting-in Process

Example 2: The Effect of Coke Addition on Fining and SO2 Release

Example 3: The Effect of Furnace Atmosphere on Fining Onset Temperature

Conclusions

References

Thermochemical Recuperation to Increase Glass Furnace Energy Efficiency

Abstract

Introduction

Thermochemical Recuperation for Glass Melting

Results and Discussion

Applications

Conclusions

Acknowledgements

References

Dry Batch Optimizer – Gain all Benefits of Water-Wetting While Reducing the Drawbacks

Abstract

Background

Troubleshooting Glass Dry Batch Process

Economic Results

References

Modeling, Sensing, and Control

In-Situ CO and O2 Laser Sensor for Burner Control in Glass Furnaces

Abstract

Introduction

Measurements in End-Port Furnace

Burner Control on the Basis of CO in End-Port Furnace

Measurements in Oxy-Fired Furnace

Concluding Remarks

Acknowledgement

Radiation Impact on the Two-Dimensional Modeling of Glass Sheet Sagging and Tempering

Abstract

Introduction

Two-Dimensional Modeling of Glass Sagging and Tempering

Modeling Results and Discussion

Conclusion

Acknowledgments

References

Appendix

An Advanced Expert Control System and Batch Imaging Software for an Improved Automatic Melter Operation

Abstract

Introduction

References

How Can Predictive Strategies Contribute to Improved Power Management and Decreased Energy Consumption?

Introduction

Objectives

Fundamentals

Conclusion

Acknowledgements

References

How Many Chambers are Enough? - A Float Furnace Modeling Study

Objective of the Study

Model Dimensions and Operation Boundaries

Conclusions

Two-Dimensional Modeling of the Entire Glass Sheet Forming Process, Including Radiative Effects

Abstract

Introduction

Two-Dimensional Modeling of Glass Sagging and Tempering

Modeling Results and Discusssion

Conclusion

Acknowledgments

References

Appendix

Refractories I

Hot Bottom Repairs: Global Impact, Performance Case Study and Development for the Americas

Abstract

Introduction

Hbr Performance Case Study

Post Mortem Analysis After 25 Months of Normal Operation

Bubbler Strip Core Drill Sample Discussion

Remaining Core Drill Samples

HBR Performance Case Study Conclusions

Next Generation HBR Material

Conclusions

Acknowledgments

References

Process Improvements with Bonded Alumina Channels

Abstract

Introduction

Discussion

Design

Heat Loss

Operation

Inspection

Comparison of Fused Alumina Channels vs Bonded Alumina Channels

Conclusion

Bonded Refractories for Extreme Conditions in the Top of Regenerators

Abstract

Introduction

Historical Overview from 1940’s-2000

New Challenges for Top Checker Layers in the Regenerator

Corrosion Tests

Refractory Recommendations for Top Checker Layers

Conclusion

References

New Fused Cast Refractory for Metal Line Protection

Abstract

Introduction

Main Improvements of Sefpro Refractory

Explanations of the Improvements by the New AZS Chemical Composition

Conclusion

Ancorro - Refinement Technology for Refractory in Glass Melt Contact

Abstract

Introduction

Technology

Results

Economical Relevance

Conclusion

Sponsoring

References

Refractories II

An Update on the Technological Evolution (or Lack Thereof) of Chinese Manufacturers of Fused Cast Refractories and the Value vs. Cost Proposition

Abstract

Introduction

The Incontrollable Macro-Economical Factors

Adding Costs to the Products

Survival Conditions and a Value vs. Cost Proposition

Monolithic Crown and Its Benefits, Colloidal Silica Bonded Refractories Technology

Abstract

Introduction

Brick Joints, Energy loss and Over Coating the Crown

Collodial Sillica Bonded Technology

Monolithic Crown Technology, Pumpable Product Technology

Case Studies - Monolithic vs Brick Crown

Conclusions

Acknowledgment

References

High Emissivity Coatings in Glass Furnaces

Abstract

Background

High Emissivity Coatings

Commercial High Emissivity Coating Update

Benefits of using High Emissivity Coatings

Factors Adversely Affecting the Evaluation or Performance of High Emissivity Coatings

High Emissivity Coating on Owens Corning Insulation Furnaces

Future Directions

References

Acknowledgement

New Recycling Solution for Refractories from Insulation Glass Furnaces

Abstract

Introduction

Conclusion

Furnace Repair After a Hurricane Flooding at Monterrey, Mexico

Abstract

Introduction

Summary

Index

74th Conference on Glass Problems

Copyright © 2014 by The American Ceramic Society. All rights reserved.

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Library of Congress Cataloging-in-Publication Data is available.

ISBN: 978-1-118-93297-1 ISBN: 978-1-118-93293-3 (special edition) ISSN: 0196-6219

Foreword

The 74th Glass Problem Conference is organized by the Kazuo Inamori School of Engineering, Alfred University, Alfred, NY 14802 and The Glass Manufacturing Industry Council, Westerville, OH 43082. The Program Director was S. K. Sundaram, Inamori Professor of Materials Science and Engineering, Kazuo Inamori School of Engineering, Alfred University, Alfred, NY 14802. The Conference Director was Robert Weisenburger Lipetz, Executive Director, Glass Manufacturing Industry Council, Westerville, OH 43082. The themes and chairs of five half-day sessions were as follows:

Batching and FormingPhil Tucker, Johns Manville, Denver, CO and Ken Bratton, Emhart Glass Research Inc., Windsor, CT

Glass Melting Glenn Neff, Glass Service, Stuart, FL and Martin Goller, Corning Incorporated, Corning, NY

Modeling, Sensing, and Control Bruno Purnode, Owens Corning Composite Solutions, Granville, OH and Larry McCloskey, Toledo Engineering Company, Toledo, OH

Refractories I Matthew Wheeler, RHI US LTD, Batavia, OH and Thomas Dankert, Owens-Illinois, Perrysburg, OH

Warren Curtis, PPG Industries, Pittsburgh, PA and Elmer Sperry, Libbey Glass, Toledo, OH

Refractories II Andrew Zamurs, Rio Tinto Minerals, Greenwood, CO and Martin Goller, Corning Incorporated, Corning, NY

Preface

In continuing the tradition that dates back to 1934, this volume is a collection of papers presented at the 74th Glass Problems Conference (GPC) published as the 2013 edition of the collected papers. The manuscripts included in this volume are reproduced as furnished by the presenting authors, but were reviewed prior to the presentation and submission by the respective session chairs. These chairs are also the members of the GPC Advisory Board. I appreciate all the assistance and support by the Board members. The American Ceramic Society and myself did minor editing and formatting of these papers. Neither Alfred University nor GMIC is responsible for the statements and opinions expressed in this volume.

As the Program Director of the GPC, I enjoy continuing this tradition of serving the glass industries. I am thankful to all the presenters at the 74th GPC and the authors of these papers. The 74th GPC continues to grow stronger with the support of the teamwork and audience. I appreciate all the support from the members of Advisory Board. Their volunteering sprit, generosity, professionalism, and commitment were critical to the high quality technical program at this Conference. I also appreciate continuing support and leadership from the Conference Director, Mr. Robert Weisenburger Lipetz, Executive Director of GMIC. I look forward to working with the entire team in the future.

S. K. SUNDARAM

Alfred, NY

January 2014

Acknowledgements

It is a great pleasure to acknowledge the dedicated service, advice, and team spirit of the members of the Glass Problems Conference Advisory Board in planning this Conference, inviting key speakers, reviewing technical presentations, chairing technical sessions, and reviewing manuscripts for this publication:

Kenneth Bratton—Emhart Glass Research Inc. Hartford, CT

Warren Curtis—PPG Industries, Inc., Pittsburgh, PA

Thomas Dankert—Owens-Illinois, Inc., Perrysburg, OH

Martin H Goller—Corning Incorporated, Corning, NY

Uyi Iyoha—Praxair Inc., Tonawanda, NY

Robert Lipetz—Glass Manufacturing Industry Council, Westerville, OH

Laura Lowe—North American Refractory Company, Pittsburgh, PA

Larry McCloskey—Anchor Acquisition, LLC, Lancaster, OH

Jack Miles—H.C. Stark, Coldwater, MI

Glenn Neff—Glass Service USA, Inc., Stuart, FL

Bruno Purnode—Owens Corning Composite Solutions, Granville, OH

Jans Schep—Owens-Illinois, Inc., Perrysburg, PA

Elmer Sperry—Libbey Glass, Toledo, OH

Phillip J. Tucker—Johns Manville, Denver, CO

James M. Uhlik—Toledo Engineering Co., Inc., Toledo, OH

Mathew Wheeler—RHI US LTD, Batavia, OH

Andrew Zamurs—Rio Tinto Minerals, Greenwood, CO

Batching and Forming

LONG TERM RESULTS OF OXY FUEL FOREHEARTH HEATING TECHNOLOGY FOR E-GLASS FIBERS

Christian Windhoevela, Chendhil Periasamyb, George Toddb, Justin Wangb, Bertrand Lerouxc, Youssef Joumania

aAIR LIQUIDE Centre de Recherche Claude Delorme 1,Chemin de la Porte des Loges – Les Loges-en-Josas-BP126F-78354 JOUY-EN-JOSAS Cedex, France

bAIR LIQUIDE Delaware Research and Technology Center200 GBC Drive, Newark, DE USA

cAIR LIQUIDE Technology Center (ALTEC)1, Chemin de la Porte des Loges – Les Loges-en-Josas-BP126F-78354 JOUY-EN-JOSAS Cedex, France

ABSTRACT

This paper presents the long-term results of ALGLASS ForeHearth (FH) 2–6 kW burner technology in four industrial installations of E-glass fiber and borosilicate container glass industries. ALGLASS FH is an oxy combustion technology developed for glass forehearth that addresses the difficulties encountered in glass forehearth. The ALGLASS FH burner is based on an innovative method for fuel injection with a swirl effect to control flame length (200 to 300 mm). The burner geometry and external body can be easily adapted to customer refractory blocks to meet desired energy profile. Burner robustness, reliability, its flexibility to control flame length and primary energy savings have been confirmed through these references.