Which is the ore used in blast furnace? - Quora

The Old Metallurgical Engineer and Steelmaker says: A mix of high-volatile, medium volatile and low-volatile coal (volatile meaning the relative content of xylene, toluene, butadiene and other aromatic hydrocarbons) is coked (meaning heated withou...

Coke (fuel) - Wikipedia

Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil in the absence of air—a destructive distillation process. It is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges when air pollution is a concern.. The unqualified term "coke" usually refers to the product derived from low ...

What raw materials are used in a blast furnace? - Answers

Mar 20, 2014· Iron ore or Haematite (Fe3O2), Carbon in the form of 'Coke', and Limestone (Calcium Carbonate 'CaCO3') are all used in the blast furnace. Iron Ore is melted down with coke, the coke burns heat ...

Iron Extraction by Blast Furnace Metallurgy - Procedure ...

A Blast Furnace is a giant, steel stack parallel with refractory brick where the concentrated ore, coke and limestone are dumped from the top and a blast of steamy air is blown into the bottom. All the three components are crushed into small round pieces and blended and put on a hopper which regulates the input.

BF Coke and its Role in Blast Furnace – IspatGuru

Sep 20, 2019· BF Coke and its Role in Blast Furnace. The raw materials for a blast furnace (BF) normally consist of three types of materials namely (i) metallic materials (sinter, pellets, and calibrated ore lumps or briquettes), (ii) fuels (coke, pulverized coal, oil, and natural gas) and fluxes (limestone, dolomite, and quartzite).

Recycling of Blast Furnace Dust in the Iron Ore Sintering ...

In iron ore sinter plants blast furnace dust and other fine-grained residues which are rich in iron or car-bon content are recycled. The carbon contained in the blast furnace dust can be used to replace coke breeze which is added to the charge as fuel for the sintering process. However, there is no information in

Preparation and Charging of Blast Furnace Burden – IspatGuru

Apr 26, 2020· Fig 1 Zones of a blast furnace. There are generally four distinct types of solid flow regions in the BF. These are (i) plug flow region which is associated with the uniform velocity of burden descend from stock-line and position just above the cohesive or melting zone, (ii) stagnant flow region (dead-man) which is a discontinuous mass of partially reacted coke particles in the centre part of ...

Application of High Ratio Coke Mixed Charging Technique …

blast furnace operation in the future. Ore-coke mixed charging, in which coke is mixed in the sinter or iron ore raw material and charged into the blast furnace, is known as one technique for achiev-ing these objectives1,2). Although this is a technique which improves the permeability and reducibility of

Why is iron ore reduced in a blast furnace? - Quora

Global steel production is based on the refining of liquid pig iron in basic oxygen converters. No technologies that do not use liquid pig iron are expected to replace this method in the coming decades, and ore and coal will remain the main raw ma...

Injection of coal and waste plastics in blast furnaces

composition and properties of the injectants (and the iron ore and coke) influence the operation, stability and productivity of a BF, the quality of the hot metal product, and the offgas composition are discussed. The combustibility of the injectants is particularly important because of the affect on furnace permeability.

Numerical investigation of mixed layer effect on ...

Gas flow distribution in a blast furnace (BF) plays a significant role in BF smooth operation, productivity, and thermal efficiency. It is affected by the dis-tribution of burden materials composed of alternating coke and ferrous ore layers. While moving downward coke and ferrous layers of …

Theoretical Consideration on Blast Furnace Coke Rate*

rate of an ideal blast furnace. II. Previous Theories on Coke Rate 1. Gruner's The01yl) Gruner defined the ideal operation of a blast furnace as follows: " The reduction of iron ores in the furnace is effected completely by CO being converted into CO 2 ; in other words, without solid carbon consumption.

The basic materials needed for production of iron in the ...

The basic materials needed for production of iron in the blast furnace are lime stone, coke and air in addition to the iron ore. (i) (a) Name one iron ore and write its formula. (b) Hot air is blown in, at the base of the furnace; where' it reacts with coke. Give the equation for the reaction that takes place.

Coke in the iron and steel industry - ScienceDirect

Jan 01, 2019· 13.1. Introduction13.1.1. Coke types. Three main types of coke are produced from coking coals (Coal Technology, 2017) as follows:Metallurgical coke is produced in coke ovens and is mainly used for the iron ore reduction in blast furnaces (BFs). It is also consumed in blast and electric furnaces for ferroalloy production and for the reduction of other metal oxides, chlorides, phosphates ...

Why Use Coke for Blast Furnace Ironmaking not Use Coal ...

Oct 06, 2019· The high-temperature CO2 gas reacts with the carbon in the coke to form CO, and the CO further reduces the iron ore to form molten iron. Carbon supply: The carbon content of pig iron is about 4%, all from blast furnace coke, accounting for 7%-9% of coke carbon content. Heating: The combustion of coke, injected fuel and external hot air provide ...

Plastics convert iron ore to steel Feedstock recycling in ...

down the blast furnace to hot metal by extracting oxygen. The gas has a temperature of between 900°C to 1.200°C and the iron therefore melts. The hot metal gathers at the bottom of the blast furnace and is poured out in regular intervals. In a blast furnace, the yield is up to 10.000 tonnes of hot metal per day. voestalpine focuses on plastic ...

Which substance is used to remove impurities from iron ore ...

Apr 05, 2021· In a blast furnace, limestone (calcium carbonate) and/or dolomite (calcium magnesium carbonate) is added as a fluxing agent. Coke (carbon from coal) is added as a reducing agent. Iron ore is the main ingredient, it contains a little iron oxide and...

what other solid is mixed with coke and iron ore in a ...

Sep 16, 2013· what other solid is mixed with coke and iron ore in a blast furnace Blast furnace - Wikipedia, the free encyclopedia A blast furnace is a type of metallurgical furnace used for smelting to produce industrial metals, generally iron .

The Sintering Process of Iron Ore Fines – IspatGuru

Mar 09, 2013· The sintering process is used to agglomerate a mix of iron ores (blend), return fines, fluxes and coke, with a particle size of less than 10 mm, so that the resulting sinter, with a screened size of 10 mm to 30 mm, can withstand pressure and temperature conditions in the blast furnace.

Investigation of the Effects of Coke Reactivity and Iron ...

Sep 27, 2020· energies Article Investigation of the E ects of Coke Reactivity and Iron Ore Reducibility on the Gas Utilization E ciency of Blast Furnace Fanchao Meng 1, Lei Shao 1,2 and Zongshu Zou 1,2,* 1 School of Metallurgy, Northeastern University, Shenyang 110819, China; [email protected] (F.M.); [email protected] (L.S.)

Iron Ore Smelting Process - Bright Hub Engineering

Mar 13, 2010· 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 ...

Blast Furnace | Encyclopedia.com

May 29, 2018· blast furnace Cylindrical smelting furnace. It is used in the extraction of metals, mainly iron and copper, from their ores. The ore is mixed with coke and a flux (limestone in the case of iron ore). A blast of hot, compressed air is piped in at the bottom of the furnace to force up temperatures so that the oxide ore is reduced to impure metal. The molten metal sinks to the bottom and is ...

(PDF) Characterization of the burden behaviour of iron ore ...

Aug 31, 2018· In the blast furnace, nut coke is utilized in a mixture with the ferrous burden to improve the gas permeability. Although applied in a broad range (10–40 mm, 2–23 wt-%), limited information is ...

blast furnace - Everything2.com

May 13, 2001· A furnace which allows the continual production of molten iron.The furnace is charged with a mixture of coke, iron ore and limestone.At the bottom of the furnace, coke and oxygen from the air react to produce carbon dioxide. This an exothermic reaction, and the temperature rises to 1800*C. The formula is as follows: C(solid) + O2(gas)---> CO2(gas) More coke then reacts with the carbon dioxide ...

Modeling a Steel Mill WAS: Highline for delivering Coke ...

On the other hand, if I moved the Converters and Rolling Mills to where the Yard was going to be, the Coke Plant would be across the aisle from the Blast Furnaces, and Coke that is produced at the Plant would be transferred via conveyor, but the Coke Plant production is insufficient for the needs of the Blast Furnace requiring Coke from other ...

How A Blast Furnace Works – Consortium Steel & Iron

May 07, 2011· 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. The raw materials require 6 to 8 hours to descend to the bottom of the furnace where they become the final product of liquid slag and liquid iron.

Why can't aluminium be extracted in a blast furnace? - Quora

Mar 23, 2021· In a blast furnace for extracting iron from the oxide ores, the Carbon content of the metallurgical coke being heated with the Iron ore reacts with the oxide- displacing Fe - so CO2 and Fe are obtained. At the operating temperature range of the bl...

Paper on Coke Breeze Reduction by ... - Sesa Goa Iron Ore

furnace. Earlier same were mixed with other fines and available carbon of blast furnace were diluting in the system. The raw materials used in this work are iron ore fines, limestone, coke breeze and blast furnace gas dust. Their chemical analyses of Iron ore fines & Flux fines are shown in Table 1. 0 …