Heat Exchange in Shaft Furnaces

Author's Preface to the English Edition

Editor's Preface

Introduction

List of Symbols

Chapter I. Heat Exchange in Packed Beds


1. The Serodynamics of Packed Beds

Pressure Drop in Packed Beds - Example


2. Continuous Heating of Packed Beds in Counterflow (Negligible Internal Resistance)


3. Heating of Packed Beds in Counterflow (Finite Internal Resistance) - Approximate Solution to the Problem


4. The Hydrointegrator - An Instrument for the Study of Thermal Processes

The Extent of the Errors of the Method and the Range of Its Application


5. Exact Analytical Solution -Actual Lumps in Counter-current Flow


6. Heating in Co-current Flow


7. Continuous Heating of Materials with Infinite Thermal Conductivity in a Stationary Bed


8. Heating of Actual Lumps in a Stationary Bed (Approximate Solution)


9. Heating of Actual Lumps in a Stationary Bed (Exact Solution)


10. Influence of Heat of Reaction upon Heat Exchange

Chapter II. Laboratory Investigations of Heat Transfer in Packed Beds


1. Research Carried Out by Furnas


2. Research Carried Out by Saunders and Ford


3. Research Carried Out by Tsukhanova and Shapatina


4. Research Carried Out by Shapovalov


5. Research Carried Out by Chukhanov and his Fellow Workers


6. Research Carried Out by Bernstein, Paleev and Fedorov


7. Research Carried Out by Timofeev


8. Conclusions to Experimental Work

New Interpretation of Furna's Experimental Data

Resulting Formula

Chapter III. Chemical Processes in Counter-current Flow


1. Resistance to Gaseous Diffusion


2. Concerning the Composition of the Gaseous Phase in a Blast Furnace


3. Peculiarities of the Eduction Process in Counter-current Flow


4. Change of CO2 Content with Height in the Blast Furnace

Chapter IV. The Thermal Performance of Gas Generators


1. Concerning the "Idle Height" of Gas Generators


2. The Peat Gas Generator


3. Dependence of Bed Height on Moisture Content of Peat, on Particle Size and on Output

Chapter V. Heat Transfer in the Blast Furnace


1. Various Aspects of Heat Transfer in Blast Furnaces

Research Carried Out by Sarkisyants

Research Carried Out by Academician Pavlov

Research Carried Out by Le Chatelier and Diepschlag

Research Carried Out by Pokhvisnev and Shapovalov

Research carried Out by Kitaev

Research Carried Out by Taylor

Conclusions


2. Research on Heat Exchange in Blast Furnaces

Furnace Operation

Experimental Method and Results of Investigation

General Scheme of Heat Exchange in the Blast Furnace

Operations of the Upper Heat Transfer Stage

The Reserve Zone

Simplified Method of Calculating Heat Balance by Stages

Special Features of Heat Transfer in the Hearth and Bosh

A Few Details of Heat Transfer Processes in the Lower Stage of Heating

Heat Exchange in a Blast Furnace Operating with Oxygen-enriched Blast


3. Economy of Coke Consumption as a Result of Blast Preheating


4. The Decomposition of Limestone in the Shaft


5. Observations on the Optimum Height of a Blast Furnace


6. Temperature of Iron and Slag

Chapter VI. Present State of the Theory of Heat Transfer in a Blast Furnace

Chapter VII. Examples of Calculations and Reference Data

Appendixes

Appendix I. Formula and Tables for Calculations of Heat Exchange in Counterflow

Appendix II. Additional Curves for Calculating Counter-current Heat Exchange

Appendix III. Formula and Nomograms for Calculating the Heating or Cooling of Spherical Bodies with a Constant Heat Transfer Coefficient

Appendix IV. Formula and Tables for Calculating Heat Exchange in a Fixed Bed

Appendix V. Graphs for Calculating the Heating or Cooling of a Sphere in a Constant Temperature Medium

References

Index