Scribd is the worlds largest social reading and publishing site. Make build mini cupola blast furnace melt metals iron aluminum brass how to discover more info on metal tree art decor. Modern blast furnace ironmaking an introduction pdf. The basic idea involves the heating of an iron oxide, often haematite, fe 2 o 3, with carbon.
This book describes the principles of the blast furnace process and especially the control of the process. Research institute of mineral dressing and metallurgy. How a blast furnace works the purpose of a blast furnace is to chemically reduce and physically convert iron oxides into liquid iron called hot metal. Blast furnace ironmaking is a multistep reduction of iron oxides at elevated temperatures. Excellent metal tree art info is available on our web pages. Cast iron staves in the hearth, upper stack and throat five rows of copper staves are installed in the high heat flux zones of the bosh, belly and lower stack a new blast furnace shell means the use of the standard. Pdf iron and steel making is one of the most intense energy.
As the mixture of iron ore, coke and limestone heats, the hot waste gases are collected and cleansed. Need help on the modern blast furnace i have spent ages lookin for information on this on the internet and no luck so far. The blast furnace is a huge, steel stack lined with refractory brick, where iron ore, coke and limestone are dumped into the top, and preheated air is blown into the bottom. Blast furnaces are used to produce pig iron from iron ore for subsequent. In integrated steel plants, production of hot metal hm in a blast furnace bf is a preferred route globally for ironmaking. Blast furnace, a vertical shaft furnace that produces liquid metals by the reaction of a flow of air introduced under pressure into the bottom of the furnace with a mixture of metallic ore, coke, and flux fed into the top. Two large blast furnaces that began their operation in 2009 and 2011 respectively. Technological changes in blast furnace iron making in india since last few decades article pdf available in international journal of science and research ijsr 212. Im new to the blast furnace and would love some advice from you guys. With its breakthrough developments in both blast furnace iron making and bof steelmaking indian steel producers both in public and private sectors have been leveraging the benefits in both greenfield and brownfield situations. Modern cupola furnaces with hot blast produce about 100 thour i. With design, manufacture and installation of pig iron, ferromanganese smelting blast furnace, sinter plant, hot air stove, cip system, shaft furnace, lime kiln, etc. Blasts furnaces are used for smelting during the production of metals such as iron, lead, zinc, and copper. Main features of a modern high capacity blast furnace.
Smallvolume blastfurnaces the future of blastfurnace. The main purpose of sintering of iron ores agglomeration is to convert fine raw materials into lumpy material for pig iron making in the blast furnace. The iron making blast furnace itself is built in the form of a tall structure, lined with. Our technology base covers the entire blast furnace process route from hot blast and raw material handling, through the furnace and casthouse, to gas cleaning and hot metal slag processing. The chairman, dr joe poveromo indicated, that dr geerdes received the award for his continuous strive for improvement of the blast furnace process by site visits, training, papers and as author of the book modern blast furnace ironmaking, which is used in numerous plants and has been translated in more than ten languages, like spanish. This book discusses the importance of blastfurnace process as a complete operation. Blast furnace iron making is the main method for modern steel production,the process of blast furnace is an important part. Ios press ebooks modern blast furnace ironmaking an. Since almost 15 years paul wurth umwelttechnik gmbh in essengermany is dedicated to bf and bof gas cleaning. Amongst all the ironmaking processes, the blast furnace technology, which has been around the longest, still holds the dominant position. Pelletizing a pellet plant contains a series of balling drums where the iron ore concentrate is formed into soft pellets, in much the same manner that one rolls a snowball, to make a pellet about the size of a marble between 14 and 12.
The common ores of iron are both iron oxides, and these can be reduced to iron by heating them with carbon in the form of coke. Mar 06, 2016 introduction and construction blast furnace. The production of iron in a blast furnace is an important industrial process, although other methods for iron production are also in use. What are the advantages and disadvantages of blast furnace. The slag may be quenched with water to form granulated slag. The iron ore concentrate is now mixed and ready for the pelletizing process.
Pdf technological changes in blast furnace iron making in. In modern practice, the combined iron plus coke burden is self fluxing and virtually no limestone is required at the blast furnace. They are then used to help heat the air blast, required if blast furnace is to reach the high temperatures needed to produce molten iron. Blast refers to the combustion air being forced or supplied above atmospheric pressure. The extraction of iron from its ore is a long and subdued process, that helps in separating the useful components from the waste materials such as slag. The equipment and systems of modern blast furnace technology are designed for the harsh. In the 5th century bc the chinese used blast furnace. Till 1990, the blast furnace route of ironmaking had about 97% 527mt share of global iron production. The method used in blast furnaces have been used since the 1500s. Furthermore there were numerous research works on the new technology of cupola furnaces smelting by using oxygen enriched blast, and obtaining pig iron from various. Media in category drawings of blast furnaces the following 127 files are in this category, out of 127 total. The properties of the original raw ore are changed in this process.
Production of pig iron in a blast furnace chapter division basic terms description of a blast furnace plant main parts of a blast furnace, description and function composition of a charge in the production of pig iron in a blast furnace. This book includes a set of equations that accurately describe stoichiometric and enthalpy balances for the process and. A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally pig iron, but also others such as lead or copper. Modern blast furnace ironmaking an introduction alibris. During tapping, complicated processes take place in which e. Blast furnace smelting equipment sinter plant lime. Modern blast furnace can reach a fuel efficiency of about 50%, according to the top gas composition, is illustrated in figure 1. The authors have very extensive experience as operators as well as consultants to many steel plants worldwide. Creating steel from lowgrade iron ore requires a long process of mining, crushing.
Basic oxygen furnace bof steel making or basic oxygen furnace steelmaking bos or linzdonawitzverfahren steelmaking or the oxygen converter process is a method in which both molten pig iron and steel scrap are converted into steel with the oxidizing action of. An introduction 3rd the book focuses on the control of the blast furnace process with respect to thermal control, gas flow control and casthouse operation. Ironmaking 101 from ore to iron with blast furnaces. This book discusses the importance of blast furnace process as a complete operation. Theory and practice presents theoretical, experimental, and operational evidence about the iron blast furnace as well as a mathematical description of its operation. A blast furnace works by blasting hot air up through the furnace while fuels, limestone, and ore move continuously through the top of the furnace.
Blast furnace is the metallurgical furnace used for smelting iron and steel using coal or coke as fuel. This page looks at the use of the blast furnace in the extraction of iron from iron ore, and the conversion of the raw iron from the furnace into various kinds of steel. Modern blast furnace can reach a fuel efficiency of about 50%. The nonuniform flow, heat transfer, and carbon dissolution from the refractory and the coke bed dead man cause large differences in thermal conditions and hot metal composition. This book focuses on the control of the blast furnace process with respect to thermal control, gas flow control and casthouse operation. By malik mubashir university of the punjab lahore, pakistan 2. The charge for agglomerate production comprises three basic parts. This project has been performed to increase the steel making production capacity of esfahan steel company in iran from 2. Modern blast furnace bf and converter bof gas cleaning a report of stateoftheart technology by franz reufer and christian davidi synopsis. With modern blast furnace ironmaking an introduction the reader has a compact compendium of the blast furnace process available. Sep 14, 2008 need help on the modern blast furnace i have spent ages lookin for information on this on the internet and no luck so far. It is suitable for students of metallurgy as well as. When the flux is added at the sinter plant, the limestone is.
A jet of air is used to burn the carbon to form the gas carbon dioxide. The world leader in ironmaking solutions primetals technologies. A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals. The lower part of an iron making blast furnace, the hearth, consists of a packed bed of coke particles through which liquid hot metal flows during tapping. Blast furnace products and there use size of blast furnace design of blast furnace is evolved through experience.
Iron is made by reacting iron ore iron oxide and impurities, coke a reductant and limestone caco 3 in a blast furnace iron ores with lower iron content such as taconite are first processed to concentrate the iron level and drive off volatile impurities. The smelting process in cupola furnace is also consid ered to be competitive. T, burla person involved name designation and email. The purpose of a blast furnace is to reduce and convert iron oxides into liquid iron called hot metal.
The world leader in ironmaking solutions primetals. Blast furnace will be continued for another thousand years because iron can be smelted at an economical price. Continuous feeding, continuous tapping, suitable for largescale continuous production. Cuttingedge technologies for ironmaking to meet your individual requirements primetals technologies is the only global provider of technological solutions along the entire valueadded chain of iron making and the largest provider of metallurgical automation solutions worldwide. Iron making in the furnace usually continues for about ten years before the furnace linings have to be renewed. Ancient iron making blast furnace iron making raw materials blast furnace reaction. Development of a blast furnace model with thermodynamic. Modern blast furnace ironmaking 3rd edition pdf free download ebook description this book describes the principles of the blast furnace process and especially the control of the process. Primetals technologies has provided blast furnace engineering, project excellence and expertise to customers worldwide for over a century. Describes the principles of the blast furnace process and especially the control of the process. Pdf technological changes in blast furnace iron making. The product is further processed continuous casting and rolling with good performance.
The energy costs of the operation are kept to a minimum by collecting and cleaning the hot gas that leaves the furnace. This concentrated ore is mixed with limestone caco 3 and coke and fed into the blast furnace from the top. So i decided to build this small portable cupola furnace to do just that. The performance of an integrated steel plant is highly dependent on the performance of its ironmaking units. It is suitable for students of metallurgy as well as for blast furnace operators and management. Oct 26, 2010 blast furnace ironmaking free download as powerpoint presentation. Now there are nearly 700 blast furnace available in world. It is in the blast furnace that extraction of iron occurs. Iron making in mini blast furnace mbf the blast furnace ironmaking process had, until recently, been the unchallenged method of making hot metal on a large scale. Characteristic data for modern large ironmaking blast furnaces. Though many improvements are made in the furnace over the years, the basic operation of the furnace is the same.
So it was only a matter of time before i set out to melt iron. Modern blast furnace ironmaking an introductio 001 2 scribd. Calculation of blast furnace size is empirical in nature. An introduction this book describes the principles of the blast furnace process and especially the control of.
In modern day, blast furnace operation is done within a well organized setup. The principle of blast furnace operational technology and. Blast refers to the combustion air being forced or supplied above atmospheric pressure in a blast furnace, fuel, ores, and flux are continuously supplied through the top of the furnace, while a hot blast of air sometimes with. Theory and practice presents the significant role of iron blast furnace by which iron is efficiently and rapidly reduced from ore and it is the basis for all primary steelmaking. Many of the innovative ironmaking technologies that have emerged in. Iron ore processing for the blast furnace courtesy of the national steel pellet company the following describes operations at the national steel pellet company, an iron ore mining and processing facility located on the mesabi iron range of minnesota. And even bronze can fail to fulfil an inner melting need. Materials balance calculation procedure in coke making. Blast furnace ironmaking an overview sciencedirect topics. In the second edition of modern blast furnace ironmaking, we have included our. Composition of a charge in the production of pig iron in a blast furnace.
1412 16 1311 206 1177 1363 1044 473 688 761 1069 1319 1208 1204 799 1262 340 885 529 84 759 954 879 226 1190 786 306 1428 102 1562 903 1517 1340 504 806 687 1362 766 96 479 1222 1054 940 950 145 625 852 565