This document outlines chapters in a book on refractory products. It discusses the evolution and trends in refractory technology as well as recycling refractory materials. It covers definitions and classifications of refractories. It also examines the production and properties of shaped and monolithic refractories. Further, it discusses selecting, accepting, and storing refractories and placement methods. Additional chapters explore wear analysis and applying refractories to coke ovens, blast furnaces, and other steel production equipment like ladles and tundishes. It concludes with refractory use in rolling mill heating and treatment furnaces.
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FellowBuddy.com is an innovative platform that brings students together to share notes, exam papers, study guides, project reports and presentation for upcoming exams.
We connect Students who have an understanding of course material with Students who need help.
Benefits:-
# Students can catch up on notes they missed because of an absence.
# Underachievers can find peer developed notes that break down lecture and study material in a way that they can understand
# Students can earn better grades, save time and study effectively
Our Vision & Mission – Simplifying Students Life
Our Belief – “The great breakthrough in your life comes when you realize it, that you can learn anything you need to learn; to accomplish any goal that you have set for yourself. This means there are no limits on what you can be, have or do.”
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This project focuses on MgO-C refractories for teeming ladles in steelmaking. It provides an overview of refractory basics, their significance in steel production, and the specific properties of MgO-C refractories. The presentation delves into the manufacturing process, highlighting key steps such as raw material preparation, shaping, and quality control. It explores the critical performance requirements of teeming ladle linings and discusses how MgO-C refractories meet these demands. Case studies demonstrate the benefits of using MgO-C refractories, including extended lifespan, improved operational efficiency, and cost reduction. The project also addresses challenges in teeming ladle lining and emphasises the importance of proper maintenance and sustainability practices. Finally, it outlines future innovations in refractory technology, highlighting opportunities for enhancing performance and sustainability in the steel industry.
Fabrication and performance evaluation of oil –fired crucible furnace using l...IJERA Editor
The technological advancement of any nation have been influenced and uplifted by the extent to which it can usefully harness and convert its mineral resources.The production of metal in foundries and in all human lives have become a general practice.This paper deals with the design, fabrication and performance evaluation of an oil-fired crucible furnace using locally sourced materials . The components of oil fired crucible furnace were furnace casing, crucible,furnace cover,burner housing,furnace cover stand,base stand and burner, Design drawings were produced and mild steel sheet was used for the fabrication of the furnace, while the other components needed for the design were selected based on functionality, durability, cost and local availability.. Experimental tests were performed to evaluate the performance of the furnace. The results showed that the furnace has a heating rate of 43.9°C/min and attained a temperature as high as 1386 °C . The furnace also had a melting rate of 333.3g/min for Aluminum and 115.8 g/min for Copper. The efficiency of the furnace was determined to be 10.34%.The low value was as result of the large energy wastage due to the open nature of the furnace.
Design and Fabrication of Crucible Furnaces by using Black Smithy SetupDr. Amarjeet Singh
The main aim was, to design Pit Furnace from the
setup of black smithy. As the Smithy setup was not in use so it
is converted into Pit Furnace setup. The purpose of using Pit
Furnace is to melt nonferrous material. The Nonferrous
materials such as Aluminum, Aluminum alloy, Copper, Brass,
etc. The Aluminum has less melting point (680ᵒ C, 1218ᵒF) and
cheaper than other. The thermal efficiency of furnace is
13.72% which is obtained by melting 2 kg of Aluminum for 75
minutes. Normally thermal of pit furnace is between 4-19%.
The blower is used to supply the air into the furnace chamber
to burn the coal. For melting the Aluminum, Crucible should
sustain higher temperature so Graphite Crucible is used. This
Crucible has thinner wall and have more refractory
properties.
Failure Analysis of Refractories is a systematic approach to identifying and understanding the root causes of refractory failures. It involves a comprehensive examination of the failed refractory components, considering factors such as chemical composition, microstructure, thermal properties, and operational parameters.
Similar to Mariana IVAN-REFRACTORIES USED IN STEEL INDUSTRY-Contents (20)
Mariana IVAN-REFRACTORIES USED IN STEEL INDUSTRY-Contents
1. CONTENTS
CHAPTER 1
INTRODUCTION
1.1. Evolution of the refractory products
1.2. Current trends in the refractory technology
1.3. Recycling and recovery ofrefractory products after their use
CHAPTER 2
REFRACTORY PRODUCTS DEFINITION, CLASSIFICATION AND SYMBOLS
2.1. Definition
2.2. Classification and symbols
CHAPTER 3
MAIN PROPERTIES OF THEREFRACTORY PRODUCTS
3.1. Generals
3.2 Interdependency relationships ofthe chemical and physical–chemical properties
CHAPTER 4
PRODUCTION AND CHARACTERISTICS OF THESHAPED AND MONOLITHIC (UNSHAPED) REFRACTORIES
4.1. Shaped refractories
4.2. Monolithic (unshaped) refractories
CHAPTER 5
SELECTION, ACCEPTANCEAND STORING OF THEREFRACTORIES4
5.1. The factors influencing the selection ofthe refractories for the thermal units in iron and steel industry
5.2. Acceptance of the refractories at the beneficiary
5.3. Refractory product storing
CHAPTER 6
PLACING METHODS OF THEREFRACTORY PRODUCTS
6.1. Generals
6.2. Placing of the linings ofshaped refractories
6.3. Placing of unshaped refractories
6.4. Refractory ceramic fibers
6.5. The role of the masonry and expansion joints from the refractory linings
6.6. Anchoring, suspension and armouring ofthe refractory linings4
6.7. Significance of drying–heating process for the operation performance ofthe refractory lining
CHAPTER 7
REFRACTORY WEAR ANALYSIS
7.1. Application conditions ofthe refractory products
7.2. Analysis of the wear factors ofthe refractory linings
7.3. The refractory lining ofa thermal unit
2. CHAPTER 8
APPLICATION OF THEREFRACTORY PRODUCTS TO THETHERMAL UNITS RELATED TO COKEPRODUCTION
8.1. The stresses the refractory lining from the coke ovens is subject to
8.2. Specific properties ofthe materials used for the lining ofthe coking ovens
8.3. Behavior of silica bricks during the operation
8.4. Maintenance of the ceramic block ofthe coke–oven battery by hot guniting
8.5. Repair of theceramicblock at thecoke–ovenbatteries by ceramic weld procedure
8.6. Repair by partial relining ofthe heating walls with bricks
8.7. Coke dry quenching stacks
CHAPTER 9
THEAPPLICATION OF THEREFRACTORY PRODUCTS TO THETHERMAL UNITS FOR IRON MAKING
9.1. The application ofthe refractory products to the blast furnaces
9.2. Linings for the systems related to the blast furnace
CHAPTER 10
REFRACTORY LININGS FOR THETHERMAL UNITS FOR THESTEEL MAKING
10.1. Refractory materials for oxygen blowing or combined blowing vessels
10.2. Refractory products for steel transportation and secondary treatment ladles
10.3. Refractory products for the tundishes
CHAPTER 11
THEAPPLICATION OF THEREFRACTORY PRODUCTS FOR THEHEATING AND TREATMENT FURNACES
11.1. Tendencies regarding the worldwide application ofthe refractory materials in the rolling shops
11.2. Refractory linings for heating and treatment furnaces from the rolling mills
REFERENCES
List of figures
List of tables