Different forms of DRI: (A) lump, (B) pellets, and (C) HBI.
Sponge Iron or Direct Reduction Iron (DRI) refers to a porous metallic substance that is produced by the direct reduction of iron ore, where oxygen is removed from the iron oxide using coal or ...
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All About The Production Of Sponge Iron
So we will quickly explain what is involved in the DRI process. ● First, iron ore lumps are placed with iron-coking coal in a kiln. ● Next, they are combusted in the presence of oxygen for 12 hours. ● Post which the products are air-cooled. The result is Sponge Iron as pellets that are initially stuck together but are later magne…See more on sreemetaliks
Images of Difference Between Pellet and Sponge Iron
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difference between pellet and spong iron
Why carbon dioxide-free sponge iron? Unlike pellets, which still contain oxygen and must be further processed by the customers, sponge iron is pure, ready-made iron. "Today's iron ore …
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Glossary of Terms/ Definitions Commonly Used in Iron & Steel …
Sponge Iron (SI): DRI is also known as Sponge Iron because of its spongy micro structure. Hot Briquetted Iron (HBI) : At times the DRI/SI coming out from the furnace is converted into a bigger compact mass i.e. Briquettes for ease in transportation/charging in steel making furnace, which are known as Hot Briquetted Iron (HBI).
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Frequently Asked Questions | International Iron Metallics …
What are the main differences between the various types of OBMs? Pig iron is produced mainly by smelting iron ore in a blast furnace and then casting the hot metal (liquid iron) into ingots, …
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SINTERING AND PELLETISATION OF INDIAN IRON ORES
HPS is characterized by micro pellets with high mechanical strength, measuring between 2 mm and 8 mm. HPS feed consists of iron ore as pellet feed fines, return fines and iron and steel work remnants, filter dust, additives and binders like limestone, dolomite, bentonite and …
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IS 11092 (2001): Iron Ore Pellets for Direct Reduction …
Processes [MTD 30: Sponge Iron and Smelting Reduction] IS 11092:2001 n fl14- 914+ mRTwmmmNimtlqFTtF Ww6d-fafmz (imuy~m) Indian Standard IRON ORE PELLETS FOR DIRECT REDUCTION ... 4.1 The iron ore pellets shall conform to the following chemical analysis (dry LOI free basis): Constituent Percentage Fe (Total) 66.5 A4in Si@ + A1203 4.0 Max
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The use of sponge iron in steel smelting
The difference between Fetota 1 and Feme t represents unreduced iron in the form of FeO and Fe~Oa. The FeO content varies between 0.5 and 8.0% and that of Fe~O s between 0 and 2%, depending on the complemess of ... Fig. 3. Relationship between the time of storing sponge iron in the open air and the change in the degree of metallization. where ...
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No. 11.7 HBI – Hot Briquetting of Direct Reduced Iron …
In the following, the differences between the two types of products are discussed. ... IMO distinguishes between DRI and "sponge iron which has been ... Pellets and lump ore (gas based reduction) Pelletized fine ore (coal based reduction) Figure 9: Cross sections through briquettes made with material from different direct ...
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Investigations on the Interaction Behavior …
The ore, in shafts, either pellet or lump ore [12,13], is converted into the so-called sponge iron or direct reduced iron (DRI) as an intermediate product, which is typically melted in an EAF for further steelmaking …
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Difference between steel bars and steel billets
Composition Differences between Steel Bars and Steel Billets. Steel bars and steel billets differ in their composition. ... Iron Ore; Billets; Pellets; Pig Iron; Sponge Iron; TMT Bars; Contact Us. Toll Free: . Email: info@sreemetaliks. Address: SML House, Main Road, P O Barbil,
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Nooshin M on LinkedIn: Do you know the difference between #spong_iron
Do you know the difference between #spong_iron and #iron_pellets? In the steel manufacturing industry, both sponge iron and iron pellets play crucial roles…
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Which Is Better: A Sponge Iron or a Pig Iron?
Sponge Iron, also known as Direct Reduced Iron (DRI), is produced by reducing iron ore in the form of lumps/pellets using non-coking coal in a rotary kiln. Pig Iron, on the other hand, is produced by melting iron ore, …
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Pig Iron vs. Sponge Iron
Pig iron is primarily used in the production of cast iron and wrought iron, while sponge iron serves as a raw material for steelmaking. Understanding the differences between these two forms of …
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difference between sponge iron and pellets – Grinding Mill …
What is the difference between sponge iron and iron pellets. What is the difference between sponge iron and pig iron? the answer. . basic summary: .1. Pig Iron and Sponge Iron are the result of different production … » More detailed!::: Xindia Steels … to produce Iron Ore pellets … The fundamental difference between … uniform mechanical strength and high abrasive strength …
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Effect of Iron Ore Lumps and Iron Ore Pellets on Production …
Pelletization has proved to be successful way to utilize iron ore fines generated during mining. The difference in chemical composition and physical properties of iron ore and iron ore pellets has impact on quality of direct reduced iron produced. The pellets have higher strength and resistance to disintegration than iron ore lumps, while lumps have better reducibility then pellets.
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Direct Reduction of Iron: A Review on Midrex and Hyl Patents
Ironmaking is the major energy consuming and CO2-emmiting step in steel production. Direct reduction processes are an alternative to the traditional blast furnace because of the use of H2 in the reducing gases which generate less CO2. There are two main technologies for direct reduction of iron, Midrex and Energiron (or Hyl) which together are responsible for 80% of the …
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تفاوت گندله و آهن اسفنجی
همه آنچه که باید درباره آهن اسفنجی بدانید. آهن اسفنجی یا آهن احیای مستقیم (dri) به روش گازی یا با استفاده از زغال سنگ تولید شده و به عنوان ماده اولیه در تولید محصولات فولادی گوناگون مورد استفاده قرار میگیرد.
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8 تفاوت گندله و آهن اسفنجی و نسبت تبدیل گندله به آهن
گندله و آهن اسفنجی از مواد اولیه رایج جهت ذوب در کوره های قوس و القایی به شمار می رود. تفاوت گندله و آهن اسفنجی جزو موضوعات پر بحث دنیای امروز محسوب میشود.
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different between sinter pellet and spounge iron
the difference between iron ore and iron sand. differences between iron ore and iron sand. different between sinter pellet and spounge iron YouTube. Aug 8, 2013 gypsum, brick, feldspar, magnetite, artificial sand, porcelain etc. iron ore sinter process MachinerySintering is the most widely used for iron ore fines. different between sinter ...
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Sponge Iron
DRI, also known as sponge iron, is the product of reducing iron oxide in the form of iron ore and steel plant wastes into metallic iron, below the melting point of iron and typically in the range of 800–1200 °C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of pellet, iron ore lumps, or fines. The reduction takes place using gaseous reductants (CO + H ...
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Sponge Iron (DRI) | The Hira Group
After reduction of iron ore pellet the product resembles sponge because of pores left behind after removal of oxygen. As such it is called Sponge Iron. Sponge Iron is a substitute of scrap in steel melting. Although the reduction in the kiln is not direct, the CO gas reduces the impurities and oxides of hematite and the resultant DRI is in the ...
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Iron ore concentrate vs fines: An In-Depth Comparison
Iron Ore Concentrate. Iron ore concentrate is primarily used in the production of pellets and sinter feed. Its high iron content and low impurities make it ideal for: 1. Pellet Production: Concentrates are used to produce iron ore pellets, which are then fed into blast furnaces or direct reduction plants. Pellets offer uniform size and quality ...
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Comparison between pellet and DRI (Sponge iron) in SDI …
Comparison between pellet and DRI (Sponge iron) in SDI (size distribution index) is made in Figure 2. ability of pellets to withstand the load during their storage and handling and the load of ...
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Low-Carbon Production of Iron & Steel: Technology …
DRI converts raw iron ore to sponge iron, a porous, permeable, and highly reactive product that requires treatment with EAF before selling to market. One of the well known hard-to-abate sectors, substantial iron and steel industry decarbonization will increase production cost significantly (>120 $/ton) [(ETC, 2018)]. ... The difference of ...
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THE GROWING IMPORTANCE OF PELLETIZING FOR IRON ORE MINING AND IRON
The concentration of low-grade iron ores is vital to the continued availability of iron and steel in our everyday lives (Eisele and Kawatra, 2003;Kawatra and Claremboux, 2021a;Zhang et al., 2021).
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EXECUTIVE SUMMARY
carbon content in sponge iron produced in coal based plants, gangue content of the sponge iron resulting in additional requirement of electrical energy in its melting and higher meltdown time. However, an ever widening gap between the demand and availability of scrap clearly indicates a bright future for the sponge iron industry. 4.
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Hot Briquetted Iron (HBI)
Overview. Hot Briquetted Iron (HBI) is a premium form of DRI that has been compacted at a temperature greater than 650° C at time of compaction and has a density greater than 5,000 kilograms per cubic metre (5,000 kg/m 3).. HBI was developed as a product in order to overcome the problems associated with shipping and handling of DRI - due to the process of compaction …
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Applications of Iron Ore Pellets
How Are Iron Ore Pellets Made? Here's a quick introduction for you on how Pellets are made. Usually, Iron Ore is manufactured and converted into Pellets. These are oval lumps of iron ore that are hardened using fuel. This process of converting iron ore into pellets is known as Pelletization. Iron Ore Pellets are then used in the production of ...
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OPERATIONAL ASPECTS OF SPONGE IRON …
1. Krupp Sponge Iron Process The Krupp. Sponge iron process uses a rotary kiln for the reduction of high grade lump ores or pellets (Fig. 1). The feed is introduced together with reducing and de-sulphurizing agents (lime-stone or raw dolomite) into an inclined rotary kiln, heated counter current to the flow of hot gas and reduced to form sponge ...
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