内容提要本书共分为4篇15章，全面阐述了物理数学模型与模拟在COREX系统中的应用，主要内容包括研究背景、COREX预还原竖炉的物理数学模拟、COREX熔融气化炉的物理数学模拟、COREX填充床中粉尘行为的模拟研究四个部分，系统介绍了中心供气COREX竖炉的气固流动、排料螺旋结构优化、上部调剂措施等内容，深入探讨了COREX气化炉拱顶含碳颗粒燃烧及造气行为、循环煤气喷吹、物料下降行为以及布料方式对温度场影响等问题，详细研究了粉尘在填充床中的渗流扩散、沉积堵塞特性。本书为目前国内外关于COREX系统模型与模拟较新、较全面的著作，具有较高的参考价值。本书可供冶金工程等相关专业的研究人员和工程技术人员阅读，也可供高等院校冶金专业的师生参考。

   Part Ⅰ Research Background

1 COREX Ironmaking Process

1．1 Brief Introduction about Different lronmaking Processes

1．1．1 Blast Furnace

1．1．2 Direct-reduced Ironmaking

1．1．3 Smelting Reduction Ironmaking

1．2 Brief Introduction about COREX Process

1．3 COREX Process in China Refe rences




Part Ⅱ Physical and Mathematical Simulation of COREX Shaft Furnace

2 Physical Simulation of Solid Flow in COREX Shaft Furnace

2．1 Physical Modelling

2．1．1 Apparatus

2．1．2 Experimental Conditions

2．2 Results and Discussion

2．2．1 Characteristics of Solid Flow

2．2．2 Effect of Variables on Solid Flow

2．2．3 Effect of AGD Beams on Solid Flow

2．3 Summary

References

3 Mathematical Simulation of Solid Flow in COREX Shaft

Furnace

3．1 DEM Model

3．2 Model Validity

3．3 Solid Flow Including Asymmetric Phenomena in Traditional SF

3．3．1 Simulation Conditions

3．3．2 Basic Solid Flow

3．3．3 Effect of Discharging Rate

3．3．4 Asymmetric Behavior of Solid Motion

3．4 Summary

References

4 Effect of Discharging Screw on Solid Flow in COREX Shaft Furnace

4．1 Influence of Screw Design

4．1．1 Simulation Conditions

4．1．2 Solid Flow in Base Case

4．1．3 Effect of Screw Diameter

4．1．4 The Optimized Case

4．2 Influence of Uneven Working of Screws

4．2．1 Simulation Conditions

4．2．2 Effect of Adjacent Inactive Discharging

4．2．3 Effect of Separated Non-working Screws

4．2．4 Effect of Discharge Rate

4．3 Summary

References

5 Gas-solid Flow in a Large-scale COREX Shaft Furnace with

Center Gas Supply Device Through CFD-DEM Model

5．1 CFD-DEM Model

5．2 Model Validity

5．3 Influence of CGD on Gas-solid Flow

5．3．1 Simulation Conditions

5．3．2 Part．icle Velocity and Segregation

5．3．3 Voidage and Gas Distribution

5．3．4 RTD of Gas and Solid Phases

5．4 Influence of Burden Profile on Gas-solid Flow

5．4．1 Simulation Conditions

5．4．2 Burden Descending Velocity and Particle Segregation

……

Part Ⅲ Physical and Mathematical Simulation of COREX Melter Gasifier

Part Ⅳ Simulation of Fine Particles Behavior in COREX