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Modern blast furnace ironmaking : an introduction /
This book describes the blast furnace process for operators. As a starting point, the blast furnace is seen as a simple iron ore melter, while gradually the physical, chemical and metallurgical background is clarified. Operational observations, challenges and remedies are explained from this perspec...
| Clasificación: | Libro Electrónico |
|---|---|
| Autores principales: | , , , , |
| Formato: | Electrónico eBook |
| Idioma: | Inglés |
| Publicado: |
Amsterdam :
IOS Press, under the imprint of Delft University Press,
2015.
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| Edición: | Third edition. |
| Temas: | |
| Acceso en línea: | Texto completo |
Tabla de Contenidos:
- ""Title Page ""; ""Preface""; ""Contents""; ""List of Symbols and Abbreviations""; ""Introduction of the Blast Furnace Process ""; ""Global steel consumption""; ""Short description of the process""; ""The layer structure within a furnace""; ""The equipment""; ""Book overview""; ""The Blast Furnace: Contents and Gas Flow ""; ""The generation of gas and gas flow through the burden ""; ""Furnace efficiency""; ""Removal of liquids""; ""An example of gas flow and contents of a blast furnace ""; ""The Ferrous Burden: Sinter, Pellets, Lump Ore ""; ""Introduction""; ""Iron ore""
- ""Quality demands for the blast furnace burden""""Sinter""; ""Pellets""; ""Lump ore""; ""Metallics charge and briquettes ""; ""Interaction of burden components""; ""Chemical control of the burden""; ""Coke""; ""Introduction: function of coke in the blast furnace ""; ""Coal blends for cokemaking""; ""Coke quality concept ""; ""Coke size distribution""; ""Strength of coke""; ""Coke deadman""; ""Overview of international quality parameters""; ""Injection of Coal, Oil and Gas""; ""Properties of coal, oil and gas""; ""Coal injection""; ""Natural gas injection""; ""Coal�gas co�injection""
- ""Complete combustion of injectants""""Burden Calculation and Mass Balances ""; ""Introduction""; ""Burden calculation: starting points""; ""An example of a burden calculation""; ""Process calculations: a simplified mass balance""; ""Estimation of direct reduction""; ""The Process: Burden Descent and Gas Flow Control ""; ""Burden descent: where is voidage created?""; ""Burden descent: system of vertical forces""; ""Gas flow in the blast furnace""; ""Fluidization and channelling""; ""Burden distribution""; ""Coke layer""; ""Ore layer thickness""; ""Blast furnace instrumentation""
- ""Blast furnace daily operational control""""Blast Furnace Productivity and Efficiency ""; ""Productivity""; ""Efficiency""; ""Following the gas in the furnace""; ""Hot Metal and Slag""; ""Formation of hot metal and slag""; ""Hot metal as cast from the furnace""; ""Hot metal and the steel plant""; ""Slag""; ""Casthouse Operation""; ""Objectives""; ""Liquid iron and slag in the hearth""; ""Removal of liquids through the taphole""; ""Typical casting regimes""; ""Taphole drill and clay gun""; ""Hearth liquid level""; ""Delayed casting""; ""No slag casting""; ""One�side casting""
- ""Not dry casts""""Defining a dry hearth ""; ""Oxygen lancing""; ""Cast data recording""; ""Operational Practices and Challenges ""; ""The burden""; ""Burden descent""; ""Recirculation of alkali and zinc""; ""Circumferential symmetry""; ""Tuyeres""; ""Stops and starts""; ""Casthouse challenges""; ""Greenhouse gas emissions""; ""Annex I. Glossary ""; ""Annex II. Further reading ""; ""Annex III. Starting point for calculation examples ""; ""Annex IV. Rules of thumb ""; ""Annex V. Coal types used for coke making ""; ""Annex VI. Coke quality tests ""; ""Annex VII. Expert systems and models ""