blast furnace slag for pelletisation of iron ore

blast furnace slag for pelletisation of iron ore

  • Blast Furnace Slag - Material Description - User ...

    Air-Cooled Blast Furnace Slag. Crushed ACBFS is angular, roughly cubical, and has textures ranging from rough, vesicular (porous) surfaces to glassy (smooth) surfaces with conchoidal fractures. There can, however, be considerable variability in the physical properties of blast furnace slag, depending on the iron production process.

  • Iron ore pelletizing systems - LIMING

    Iron ore pelletizing systems. Iron ore fines are agglomerated into pellets and then indurated using a furnace to create iron ore pellets. These are typically fed to a blast furnace or DRI plant as part of the process to make steel.

  • Ironmaking 101 – From Ore to Iron with Blast Furnaces ...

    Figure 1 Drawing of an ironmaking blast furnace with hot-blast stove. Source: The German Steel Federation (WV Stahl) In order to make steel, iron must be extracted or won from iron ore. Blast furnacing, smelting and direct iron reduction are the current ironmaking processes.

  • Blast furnace - Wikipedia

    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. 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 ...

  • Mineral Resource of the Month: Iron and Steel Slag EARTH ...

    Iron and steel slag, also known as ferrous slag, is produced by adding limestone (or dolomite), lime and silica sand to blast furnaces and steel furnaces to strip impurities from iron ore, scrap and other ferrous feed materials and to lower the heat requirements of the iron- and steelmaking processes.

  • Blast Furnace - an overview ScienceDirect Topics

    Blast-furnace slag (BFS) is “developed” in a molten condition simultaneously with iron in a blast furnace (Lewis, 1982). Such slag consists primarily of impurities of iron ore (mainly silica and alumina). The composition of slag depends on the composition of iron ore, fuel, flux stones, and mixing ratios required for efficient furnace ...

  • Blast Furnace Slag National Slag Association

    Blast Furnace Slag is formed when iron ore or iron pellets, coke and a flux (either limestone or dolomite) are melted together in a blast furnace.When the metallurgical smelting process is complete, the lime in the flux has been chemically combined with the aluminates and silicates of the ore and coke ash to form a non-metallic product called blast furnace slag.

  • Extraction of Iron Metallurgy Blast Furnace and Reactions

    This concentrated ore is mixed with limestone (CaCO 3) and Coke and fed into the blast furnace from the top. It is in the blast furnace that extraction of iron occurs. 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. What happens in the Blast ...

  • Types of iron and steel slag : NIPPON SLAG ASSOCIATION

    It consists of non-ferrous components contained in the iron ore together with limestone as an auxiliary materials and ash from coke. Approximately 290 kg of slag is generated for each ton of pig iron. When it is ejected from a blast furnace, the slag is molten at a temperature of approximately 1,500℃.

  • Iron ore pellets and Pelletizing processes – IspatGuru

    Fig 4 Temperature distribution during the two proce. Advantages of Pellets. Iron ore pellet is a kind of agglomerated fines which has better tumbling index when compared with the iron ore and it can be used as a substitute for the same both in the blast furnace and for DR production.

  • Blast Furnace - an overview ScienceDirect Topics

    Blast-furnace slag (BFS) is “developed” in a molten condition simultaneously with iron in a blast furnace (Lewis, 1982). Such slag consists primarily of impurities of iron ore (mainly silica and alumina). The composition of slag depends on the composition of iron ore, fuel, flux stones, and mixing ratios required for efficient furnace ...

  • Blast Furnace Slag National Slag Association

    Blast Furnace Slag is formed when iron ore or iron pellets, coke and a flux (either limestone or dolomite) are melted together in a blast furnace.When the metallurgical smelting process is complete, the lime in the flux has been chemically combined with the aluminates and silicates of the ore and coke ash to form a non-metallic product called blast furnace slag.

  • Pelletizing - Wikipedia

    The configuration of iron ore pellets as packed spheres in the blast furnace allows air to flow between the pellets, decreasing the resistance to the air that flows up through the layers of material during the smelting. The configuration of iron ore powder in a blast furnace is

  • Blast furnace metallurgy Britannica

    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. Blast furnaces are used to produce pig iron from iron ore for subsequent

  • SLAG - IRON AND STEEL - ibm.nic

    SLAG - IRON AND STEEL 16 Slag - Iron and Steel S lag is a by-product generated during manufacturing of pig iron and steel. It is produced by action of various fluxes upon gangue materials within the iron ore during the process of pig iron making in blast furnace and steel manufacturing in steel melting shop.

  • Pig iron - blast furnace route International Iron ...

    Blast Furnace Process. The blast furnace is a counter-current gas/solids reactor in which the descending column of burden materials [coke, iron ore and fluxes/additives] reacts with the ascending hot gases. The process is continuous with raw materials being regularly charged to the top of the furnace and molten iron and slag being tapped from ...

  • The Extraction of Iron - Chemistry LibreTexts

    Iron ore is not pure iron oxide - it also contains an assortment of rocky material that would not melt at the temperature of the furnace, and would eventually clog it up. The limestone is added to convert this into slag which melts and runs to the bottom. The heat of the furnace

  • Characterization of Fluxed Iron Ore Pellets as Compared to ...

    PDF The effect of lime addition in hematite iron ore pellets on its physico-chemical as well as mechanical properties with respect to blast furnace requirement was studied in a laboratory scale ...

  • Blast Furnace Slag Cement - theconstructor.org

    Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70% to that of cement. Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properties.

  • blast furnace slag for pelletisation of iron ore

    Blast furnace Facts for Kids A blast furnace is a special type of furnace.They are used to make iron from ore.Blast furnaces are very large. They can be up to 60 metres (200 ft) tall and 15 metres (49 ft) in diameter.The blast furnace is the biggest chemical reactor.

  • Iron Ore and Pellets

    Iron ore is found in nature in the form of rocks, mixed with other elements. By means of various industrial processes incorporating cutting-edge technology, iron ore is processed and then sold to steel companies. The iron ore produced by Vale can be found in houses, cars and household appliances.

  • Types of iron and steel slag : NIPPON SLAG ASSOCIATION

    It consists of non-ferrous components contained in the iron ore together with limestone as an auxiliary materials and ash from coke. Approximately 290 kg of slag is generated for each ton of pig iron. When it is ejected from a blast furnace, the slag is molten at a temperature of approximately 1,500℃.

  • HOW A BLAST FURNACE WORKS - Foundry Gate

    HOW A BLAST FURNACE WORKS Introduction The purpose of a blast furnace is to chemically reduce and physically convert iron oxides into liquid iron called "hot metal". 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.

  • MAGMA smelting unit for coke-free production of cast iron ...

    MAGMA smelting unit for coke-free production of cast iron, using iron ore South African / Australian thermal coal MAGMA is a multi-purpose smelting unit, which can replace the conventional blast furnace for making pig iron.

  • Common Uses for Slag National Slag Association

    Non ferrous slags make up only 12% of the total annual production Described below are the main types and uses of slag commercially available in Ferrous Slag products. Iron Blast Furnace Slag (BFS) This is the co-product from the reduction of iron ores to produce molten iron and molten slag. 1.

  • Pig iron - blast furnace route International Iron ...

    Blast Furnace Process. The blast furnace is a counter-current gas/solids reactor in which the descending column of burden materials [coke, iron ore and fluxes/additives] reacts with the ascending hot gases. The process is continuous with raw materials being regularly charged to the top of the furnace and molten iron and slag being tapped from ...

  • © IEA ETSAP - Technology Brief I02 - May 2010 - etsap ...

    Blast Furnace (pig iron) – Blast furnace (Figure 2) is a process for producing liquid raw iron by smelting pellets or sinter in a reducing environment. The end products are usually molten metal, slag and blast furnace gas. In the reduction process, oxygen (O 2) is taken out of the pellets or sinter. Coke is often used as a reducing agent, as well

  • (PDF) IRON AND STEELMAKING SLAGS: ARE THEY HAZARDOUS

    Currently, almost all blast furnace slag is utilized for various purposes, such as cement making, road construction, fertilizer, etc. ... Iron and Steelmaking Slags: Are They Hazardous Waste ...

  • IRON AND STEEL - chemguide

    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. 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 ...

  • CHEMISTRY: The extraction of Iron and its impact on the ...

    Sep 04, 2012  THE EXTRACTION OF IRON AND ITS IMPACT ON THE ENVIRONMENT. ... Iron(III) oxide is reduced when oxygen is removed from it. A blast furnace is used for this process [Figure 4]. Figure 4: A blast furnace: ... Impacts on the environment due to the extraction of iron from haematite does not only start during the extraction of iron from the ore - it ...

  • Blast Furnace and Process Description - Chemical ...

    Jul 12, 2019  Blast Furnace and Process Description:- Iron blast furnace is a vertical shaft, which is used to melt the iron ore and to produce hot metal by heat exchange and chemical reaction.The burden charge consisting of iron oxide, flux and coke and it provides through the throat from the top of the furnace.

  • SINTERING AND PELLETISATION OF INDIAN IRON ORES

    High grade iron ore less than 10% of the total reserves. ROM iron ore with Fe less than 58 – 60% discarded as waste. After beneficiation iron ore availability can improve by about 50%. Steel community and the country demand technological solutions for utilising low grade ores. The technology task that would be imperative: 1.

  • anvil's ring iron smelting article

    The blast furnace operated on a larger scale and at higher temperatures, and produced molten cast iron, which had to be further refined by eliminating carbon and reintroducing slag to create wrought iron. The blast furnace’s advantages of producing large quantities and removing a higher percentage of iron from the ore outweighed the ...

  • Blast Furnace Slag Cement - theconstructor.org

    Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70% to that of cement. Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properties.

  • SLAG - IRON AND STEEL - ibm.nic

    SLAG - IRON AND STEEL 16 Slag - Iron and Steel S lag is a by-product generated during manufacturing of pig iron and steel. It is produced by action of various fluxes upon gangue materials within the iron ore during the process of pig iron making in blast furnace and steel manufacturing in steel melting shop.

  • Investigation on cold bonded pelletization of iron ore ...

    Cold bonded pelletization of iron ore fines using ordinary portland cement binder is emerging as a potential energy saving agglomeration process for proper utilization of Indian iron ore fines. The possibility of substituting ordinary portland cement/clinker by cheaper low grade Indian granulated blast furnace slag is investigated.

  • Steel-making Q/A Flashcards Quizlet

    Which of the following are the raw materials that are put into a blast furnace to create steel a. Hot air, iron ore, coke, slag b. Hot air, iron ore, coke, limestone c. Hot water, iron ore, limestone d. Hot water, iron ore, hematite

  • Blast furnace metallurgy Britannica

    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. Blast furnaces are used to produce pig iron from iron ore for subsequent

  • Blast Furnace Slag - Material Description - RMRC

    Blast Furnace Slag - Material Description ORIGIN In the production of iron, iron ore, iron scrap, and fluxes (limestone and/or dolomite) are charged into a blast furnace along with coke for fuel. The coke is combusted to produce carbon monoxide, which reduces the iron ore to a molten iron product.

  • Extraction of Iron Metallurgy Blast Furnace and Reactions

    This concentrated ore is mixed with limestone (CaCO 3) and Coke and fed into the blast furnace from the top. It is in the blast furnace that extraction of iron occurs. 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. What happens in the Blast ...

  • What is Slag? Australian Steel Mill Services

    What is Slag? There are two distinct types of slag produced at the BlueScope Steel Port Kembla Site; Blast Furnace Slag and Steel Furnace (or BOS) Slag. BLAST FURNACE SLAG. Iron is extracted from iron ore in a blast furnace by a process known as reduction. The raw materials - iron ore, coke and fluxes - are fed into the top of the furnace.

  • Blast Furnace (1940-1949) - YouTube

    Apr 13, 2014  Coke Iron Ore and Limestone is put into the blast furnace. Hot air is pumped from the stoves into the blast furnace, gas is released. Animation of the processes. Slag and iron

  • What is Blast Furnace? - Answers

    A blast furnace is a forge in which ore is smelted to meal, being intensified by a blast of hot air. How does limestone coke and iron ore get into the blast furnace? through the top of the blast ...

  • MAGMA smelting unit for coke-free production of cast iron ...

    MAGMA smelting unit for coke-free production of cast iron, using iron ore South African / Australian thermal coal MAGMA is a multi-purpose smelting unit, which can replace the conventional blast furnace for making pig iron.

  • Dalmia - Iron Making

    Sinter Plant / Pelletisation Plant. Sinter plants agglomerate iron ore fines (dust) with other fine materials at a high temperature, to create a product that can be used in a blast furnace. The final product, a sinter, is a small, irregular nodule of iron mixed with small amounts of other minerals.

  • Dry beneficiation of iron ore, manganese ore, chrome ore ...

    V. Reduction of iron ore briquettes into DRI in the tunnel kiln process; VI. Carbon-composite briquetting of iron ore fines fast-reduction into DRI in the rotary hearth furnace; VII. Vertical grinding mill to make ground, granulated, blast furnace slag (GGBS) VIII. Rock wool making plant, using the molten slag from MAGMA / Blast Furnace; IX.

  • Blast Furnace Slag Cement - theconstructor.org

    Blast furnace slag cement is the mixture of ordinary Portland cement and fine granulated blast furnace slag obtained as a by product in the manufacture of steel with percent under 70% to that of cement. Ground granulated blast furnace slag cement (GGBFS) is a fine glassy granules which contain cementatious properties.

  • Replacement of bentonite in hematite ore pelletisation ...

    Replacement of bentonite in hematite ore pelletisation using a combination of sodium lignosulphonate and copper smelting slag A. Ammasi and J. Pal* Bentonite is the most common binder used in iron ore pelletisation owing to its good bonding properties in green and dry pellets at both ambient and elevated temperatures. However, due to

  • Hot Blast Furnace Get a Quote on Hot Blast Furnaces ...

    What is a Blast Furnace? Blast furnaces reduce iron ore through a process combining coke and limestone and a hot blast process whereby hot preheated gases from the blast furnace stoves are injected into the bottom area of the furnace in a series of tuyeres connected to a bustle pipe. The combination of temperature and carbon monoxide generated from the combustion of the coke react

  • Iron Ore Smelting Process - Brighthub Engineering

    The ore is loaded into a blast furnace along with measured quantities of coke and limestone. Hot combustion air is supplied to the furnace and some form of fuel used to raise the temperature. The iron is reduced from the ore by carbon in the coke, the limestone aiding slag separation from the molten iron. The slag and molten iron are tapped off from the bottom of the furnace, the slag being ...

  • (PDF) The utilisation of iron ore fines : Technical ...

    These are given briefly under this group. Sintering of Iron Ore Fines Sintering is an agglomeration-technique for enlarging the iron ore particle size. The use of iron ore sinter in a modern day blast furnace has become common due to various advantages associated with it.

  • Iron and Steelmaking - vsb.cz

    A blast furnace charge consists of ore, fluxes and fuel. The ore part of a charge consists of iron ores and concentrates, manganese ores and various types of scrap containing iron.