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The Resource Fuel Arc Furnace (FAF) for Effective Scrap Melting : From EAF to FAF

Fuel Arc Furnace (FAF) for Effective Scrap Melting : From EAF to FAF

Label
Fuel Arc Furnace (FAF) for Effective Scrap Melting : From EAF to FAF
Title
Fuel Arc Furnace (FAF) for Effective Scrap Melting
Title remainder
From EAF to FAF
Creator
Contributor
Subject
Language
eng
Member of
Cataloging source
MiAaPQ
Literary form
non fiction
Nature of contents
dictionaries
Series statement
SpringerBriefs in Applied Sciences and Technology Ser
Fuel Arc Furnace (FAF) for Effective Scrap Melting : From EAF to FAF
Label
Fuel Arc Furnace (FAF) for Effective Scrap Melting : From EAF to FAF
Link
http://libproxy.rpi.edu/login?url=https://ebookcentral.proquest.com/lib/rpi/detail.action?docID=5015326
Publication
Copyright
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Carrier category
online resource
Carrier category code
cr
Carrier MARC source
rdacarrier
Color
multicolored
Content category
text
Content type code
txt
Content type MARC source
rdacontent
Contents
  • Introduction -- Contents -- 1 EAF in Global Steel Production -- Energy and Productivity Problems -- Abstract -- 1.1 Production of Steel from Scrap Is EAF's Mission -- 1.2 Melting a Scrap as a Key Process of the Heat -- 1.3 Unjustified High Electrical Energy Consumption -- 1.4 Problems of Ultra-High Power (UHP) EAFs with Regard to Energy -- 1.5 High Productivity or Low Costs? -- References -- 2 Analysis of Technologies and Designs of the EAF as an Aggregate for Heating and Melting of Scrap -- Abstract -- 2.1 Melting a Scrap by Electric Arcs. Function of Hot Heel -- 2.1.1 Single Scrap Charging -- 2.1.2 Telescoping Shell -- 2.2 Heating a Scrap by Burners in the Furnace Freeboard -- 2.2.1 Specifics of Furnace Scrap Hampering Its Heating -- 2.2.2 Stationary Burners and Jet Modules -- 2.2.3 Rotary Burners with Changing the Flame Direction -- 2.2.3.1 Slag Door and Oriel Rotary Burners -- 2.2.3.2 Roof Rotary Burners -- 2.2.4 Two-Stage Scrap Melting. Industrial Testing of the Process -- 2.2.4.1 Two-Stage Process in 100-t and 200-t EAFs -- 2.2.4.2 Two-Stage Process in Plasma Furnaces -- 2.2.5 Twin-Shell EAFs -- 2.2.5.1 Twin-Shell Shaft Furnaces -- 2.3 EAF with Preheating a Scrap by Off-Gases and Melting of Preheated Scrap in Liquid Metal -- 2.3.1 Conveyor Furnaces of Consteel-Type -- 2.3.2 Shaft Furnaces with Fingers Retaining Scrap -- 2.3.2.1 Calculation -- 2.3.2.2 EAF Quantum -- 2.3.2.3 EAF SHARC -- 2.3.3 Shaft Furnaces with Pushers of the COSS-Type -- 2.3.3.1 Shaft Furnaces of ECOARC-Type -- 2.4 Factors Hindering Wide Spread of Shaft Furnaces -- 2.4.1 Calculation of the Maximum Values of the Power of the Heat Flow of Off-Gases and Temperature of Scrap Heating by These Gases in the Shaft -- References -- 3 Experimental Data on Melting a Scrap in Liquid Metal Required for Calculation of This Process -- Abstract -- 3.1 Features of Scrap Melting Process
  • 3.2 Studies of the Melting Process by the Method of Immersion of Samples in a Liquid Metal. Analysis of the Results -- 3.2.1 Melting of Single Samples of Scrap with a Solidified Layer and Without Solidifying -- 3.2.2 Co-melting of Multiple Samples -- 3.2.3 Porosity of Charging Zone and Bulk Density of Scrap -- References -- 4 Calculations of Scrap Melting Process in Liquid Metal -- Abstract -- 4.1 Scrap Melting Time -- 4.2 Adaptation of Experimental Data Obtained by the Method of Melting Samples to Real Conditions of Scrap Melting -- 4.2.1 Equivalent Scrap -- 4.2.2 Correction Coefficients KP, KL, Kts and KÜ -- 4.2.2.1 Coefficient KP, Adjustment of Porosity P in the Charging Zone -- 4.2.2.2 Coefficient KL, Adjustment of Temperature of Metal tL -- 4.2.2.3 Coefficient Kts, Adjustment of Scrap Preheating Temperature tS -- 4.2.2.4 Coefficient KÜ, Adjustment of Metal Stirring Intensity -- 4.3 Calculation Method of Scrap Melting Time in Liquid Metal -- 4.3.1 General Characteristic of the Method -- 4.3.2 Examples of Calculations of Scrap Melting Time -- 4.3.2.1 Conveyor Furnace Consteel -- 4.3.2.2 Shaft Furnace Quantum -- 4.3.2.3 Influence of Scrap Quality -- 4.3.3 Specific Scrap Melting Rate -- References -- 5 Increasing Scrap Melting Rate in Liquid Metal by Means of Oxygen Bath Blowing -- Abstract -- 5.1 Preliminaries -- 5.2 Tuyeres with Evaporation Cooling Embedded in the Lining -- 5.3 Roof Water-Cooled Tuyeres for Bath Blowing at Slag-Metal Interface -- 5.3.1 Thermal Operation of Tuyeres: Heat Flows, Temperatures -- 5.3.1.1 Operation of Tuyeres with Local Water Boiling -- 5.3.1.2 Jet Cooling -- 5.3.2 Roof Tuyere with Jet Cooling -- Design, Basic Parameters -- 5.3.2.1 Controlling the Optimal Position of Roof Tuyere Relatively to Slag-Metal Interface -- References -- 6 High-Temperature Heating a Scrap in a Furnace Shaft -- Abstract
  • 6.1 Preliminary Considerations and Evaluation of Some Parameters -- 6.1.1 Calculation of Scrap Heating Time with off-Gases in the Quantum Shaft -- 6.2 Scrap Preheating System by High-Power Recirculation Burner Devices -- Reference -- 7 Fuel Arc Furnace-FAF -- Abstract -- 7.1 Concept of the Fuel Arc Furnace -- 7.1.1 Selection of the Quantum Constructive Scheme as a Base for FAF -- 7.1.2 Calculations of Main Parameters and Performances of the FAF -- 7.1.2.1 Data on Parameters and Operating Conditions of the furnace Required for Calculations -- 7.1.2.2 Calculation of Scrap Preheating Time -- 7.1.2.3 Required Transformer Power and Electrical Energy Consumption -- 7.1.2.4 Power of Burner Devices and Natural Gas Flow Rate -- 7.1.2.5 Tap-to-Tap Times and Hourly Productivity -- 7.2 Advantages of Fuel Arc Furnaces FAF of Quantum-Type -- Reference -- Index
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{'f': 'http://opac.lib.rpi.edu/record=b4388956'}
Extent
1 online resource (101 pages)
Form of item
online
Isbn
9789811058851
Media category
computer
Media MARC source
rdamedia
Media type code
c
Sound
unknown sound
Specific material designation
remote

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