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us5810905a - process for making pig iron - google patents

A process for producing pig iron from iron ore fines wherein the fines are partially reduced in a fluid bed reactor and, without pelletizing, briquetting or otherwise agglomerating the partially

iron ore smelting process-bright hub engineering

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 disposed of and the molten iron being poured into molds were it solidifies, now being in the form of pig iron. The pig iron is loaded into to an open hearth furnace where it is heated and returned to its molten …

howironwas made -saugus iron works national historic

May 29, 2020 · The blast furnace is where bog ore was smelted to create cast iron "pig" bars, so named because liquid cast iron was fed from a larger trench into smaller trenches as a mother sow to suckling pigs. To make cast iron, three raw materials were brought over the charging bridge and loaded into the chimney of the furnace

how iron was made - saugus iron works national historic

May 29, 2020 · Using the ancient "bloomery" method, iron ore was converted directly into wrought iron by heating the ore while at the same time melting the ore's impurities and squeezing them out with hand hammers. This is also called the "direct process." By the 1100s water-powered hammers replaced hand hammers for forging out bars of iron

us5810905a -processfor makingpig iron- google patents

A process for producing pig iron from iron ore fines wherein the fines are partially reduced in a fluid bed reactor and, without pelletizing, briquetting or otherwise agglomerating the partially

processes and procedures in the extraction of iron

The molten iron that is formed sinks right to the bottom of the blast furnace and is subsequently tapped off. The molten iron is then run into moulds where it sets to a form known as pig iron. This iron can also be used in steel production or purified further to give wrought iron

extraction of iron& concentration ofore- an overview

Sep 23, 2019 · Carbon plays a very important role in influencing the brittleness and hardness balance in iron. To reduce the carbon content of pig iron, it is melted again with scraps of iron and coke and subjected to the blast of hot air. This kind of iron is known as Cast Iron and has a lower carbon content of about 2 – 3 %. This is even harder than pig iron

what ispig iron? (with pictures) - info bloom

Jan 20, 2021 · Pig iron begins with iron ore and other raw materials. Pig iron is a metal material that results when iron ore, charcoal from coal, and limestone are melted together under intense air pressure. When the combined material cools, it forms a high- carbon product known as pig iron

dri production| internationalironmetallics association

Ore-based metallics - merchant pig iron (MPI), direct reduced iron (DRI), hot briquetted iron (HBI), granulated pig iron (GPI) - are value-adding feedstock materials for the iron & steel and ferrous casting industries and IIMA has as its principal objective their promotion through product and market support, innovation, education and regulatory

what's theprocessofironsmelting? - meetyou carbide

Jan 08, 2021 · 8 January, 2021. Ironmaking methods mainly include blast furnace method, direct reduction method, smelting reduction method, etc. the principle is that the reduced pig iron is obtained by physicochemical reaction of ore in a specific atmosphere (reducing substances Co, H2, C; appropriate temperature, etc.). In addition to a small part of pig iron used for casting, the vast majority is used as …

theprocessof making and refining steel from rawiron

Apr 27, 2017 · Iron ore is utilized in the p roduction of steel- the process of steel-making involves the removal of impurities from raw iron and the addition of alloying components to produce the desired

how to convert pig iron into steel| ehow

Pig iron is the basic building block of all ferrous metals. It is formed when iron ore is refined in a furnace in the presence of charcoal, limestone and air. It is the basic form of iron used to make decorative wrought iron items. When the pig iron is further refined and a minimum amount of carbon is added, the crystalline structure of the metal changes and steel is produced

production ofpig ironby using the romeltprocess- arab

It is summarized in the reduction of iron ores and other iron-containing materials which are in melting state for the production of pig iron. The process was developed by the National University of Science and Technology (formerly known as the Moscow Institute of Steel and Alloy), and the development work began in 1978 when a group of scientists led by Vladimir Romants began working on the design of this …

iron processing| britannica

In 1879 Sidney Gilchrist Thomas and Percy Gilchrist adapted the Bessemer converter for use with phosphoric pig iron; as a result, the basic Bessemer, or Thomas, process was widely adopted on the continent of Europe, where high-phosphorus iron ores were abundant. For about 100 years, the open-hearth and Bessemer-based processes were jointly responsible for most of the steel that was made, …

pig ironproduction interstahl

To create pig iron in the blast furnace we need iron ore and coke. Iron ore may contain contaminants that must be removed by adding flux. The mixture of iron ore, flux and sometimes scrap metal is called a burden. A typical blast furnace is a cylindrical shaft furnace with a refractory lining on the inside

how to manufacturepig iron: howpig ironis made?

(3) Sponge Iron Process: As the name implies, the spongy iron is obtained by the reduction of lumpy iron ore or iron ore pellets from the oxide form into the metallic state. The iron content of the product so obtained varies from 90% to 94% and the balance represents the traces of gangue and residual iron …

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