iron pellet reduction in sponge iron kilns

Reduction Efficiency of Iron Ore–Coal Composite

Anew process to produce iron nuggets at high temperature by direct reduction with basic synthetic iron ore coal briquette or pellet has been introduced, that is called Wcomet process in which the ...

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Sponge Iron (DRI) The Hira Group

Coal based Sponge-iron is a metallic product produced through direct reduction of iron ore in the solid state .As such it is also known as Direct Reduced Iron (DRI). Iron Ore Pellet is used for reduction. After reduction of iron ore pellet the product resembles sponge because of

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SPONGE IRON PRODUCTION FROM ORE -COAL

2014-9-2  Keywords: Tunnel Kiln, Iron ore-coal composite pellets, Sponge iron, Thermal efficiency, Carbon utilization efficiency, Percentage metallic iron . 1. INTRODUCTION The tunnel kilns are mostly used by the ceramic industries for heating refractory and ceramic products [1-2]. In the year 1908 use of tunnel kiln started for iron oxide reduction. This

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Sponge Iron Pellets, स्पंज आयरन in Chembur East,

Sponge Pellet Sponge iron Pellets is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. Manufacturers of Pellets, sponge iron, tmt bars steel. Producers of quality iron products.

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Accretion Control in Sponge Iron Production Kiln using ...

Rotary kilns are found in many processes that involve processing of solids. This study focuses on sponge iron kiln based process. The chemical process involved in making sponge iron removes oxygen from iron ore by using a reducing agent in the form of non-coking coal [Patra et al, (2005)]. The reduction

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Sponge Iron in Raipur, स्पंज आयरन, रायपुर,

Sponge iron is formed through the reduction of iron ore to metallic iron through reaction with carbon in the form of coal, etc. at approx. 1100 degree Celsius. Sponge iron is also referred to as direct reduced iron, metalized iron, or hot briquetted iron. Sponge iron is used in the iron

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(PDF) Reduction and Swelling of Fired Hematite Iron

SEM photographs of fired iron ore pellet (batch A) reduced at a final temperature of 850 C (degree of reduction À 94%) showing the formation of prominent cracks = voids in the structure: (a ...

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Direct Reduced Iron Industry in India — Problems and

2012-12-18  sponge iron in steel making has become a regular practice mainly by induction furnace steel plants. ... high in iron content, having high cold and reduction strength are the ideal input for sponge iron production. The ore fines used for pellet production should be beneficiated to get

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Coal based Direct Reduction Rotary Kiln Process –

The metallic iron in this process is produced by the reduction of iron oxide below the fusion temperature of iron ore (1535 deg C) by utilizing carbonaceous material present in the non-coking coal. As the iron ore is in direct contact with the reducing agent throughout the reduction process, it is often termed as direct reduced iron (DRI).

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Sponge Iron Production In Rotary Kiln Bidyapati Sarangi

Sponge iron production in rotary kiln bidyapati sarangi on amazon free shipping on qualifying offers the increase in the demand of sponge iron is also due . more rotary kilns used for sponge iron plant - , kiln cooler equipment for sponge iron plant -.

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Sponge Iron (DRI) The Hira Group

Coal based Sponge-iron is a metallic product produced through direct reduction of iron ore in the solid state .As such it is also known as Direct Reduced Iron (DRI). Iron Ore Pellet is used for reduction. After reduction of iron ore pellet the product resembles sponge because of

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Sponge Iron - HIRA - Godawari Power Ispat Limited

Iron Ore Pellet is used for reduction. 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 ...

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Sponge Iron, स्पंज आयरन in Siltara, Raipur ,

Iron Ore Pellet is used for reduction. 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 ...

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(PDF) Reduction and Swelling of Fired Hematite Iron

SEM photographs of fired iron ore pellet (batch A) reduced at a final temperature of 850 C (degree of reduction À 94%) showing the formation of prominent cracks = voids in the structure: (a ...

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Production of metallurgical pellets in rotary kilns ...

Continuously operated rotary kilns fired internally by combustion of fuel and operated with the flame and the resultant combustion gases moving countercurrent to the flow of heated material are well known. They have been used for the reduction of iron oxides to sponge iron grains and pellets and in a known process wherein pellets of iron oxides ...

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TO STUDY THE REDUCTION SWELLING BEHAVIOUR OF

2013-12-6  2.5 Industrial significance- 12 2.6 Mechanism of swelling- 12-13 2.7 Thermodynamics and kinetics of iron ore reduction- 13-15 Chapter 3 16-20 3. Experimental 16-20 3.1 Material Selection- 17-18 3.2 Experimental Procedure- 18-19 3.3 Determination of degree of reduction of Iron-ore pellets- 19 3.4 Determination of degree of 19swelling- -20 3.5 Determination of Drop Number- 20

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Direct Reduction Process - an overview ScienceDirect

The direct reduction processes in combination with the melting of directly reduced iron to produce steel in the EAF offer an alternative to the BF-BOF route. The basis of the direct reduction process is that solid sponge iron is produced by removing oxygen from the ore in a shaft furnace, rotary kiln furnace or fluidised bed. Sponge iron can be ...

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Iron Oxide Pellet - an overview ScienceDirect Topics

If iron oxide is reduced directly to metal using hydrogen, a dense iron phase forms on the surface of the pellet, making it difficult for reduction to proceed. However, if the H 2 /H 2 O ratio is chosen to make wüstite instead, this layer is porous and reduction to metal can occur rapidly afterward [ 51 ].

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Coal based Direct Reduction Rotary Kiln Process –

The metallic iron in this process is produced by the reduction of iron oxide below the fusion temperature of iron ore (1535 deg C) by utilizing carbonaceous material present in the non-coking coal. As the iron ore is in direct contact with the reducing agent throughout the reduction process, it is often termed as direct reduced iron (DRI).

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Direct Reduced Iron Industry in India — Problems and

2012-12-18  SPONGE IRON QUALITY The rotary kiln sponge iron has lower metallisation (about 85 — 88% on the average) and low carbon content (0.1-0.2%) compared to gas based sponge iron (Metallisation of 92 — 94% and carbon content of 1.5 — 2%). The higher metallisation and higher carbon content of gas based sponge iron provide

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reduction iron kiln, reduction iron kiln Suppliers and ...

Alibaba offers 1,673 reduction iron kiln products. A wide variety of reduction iron kiln options are available to you, such as warranty of core components, local service location, and key selling points.

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Sponge Iron - HIRA - Godawari Power Ispat Limited

Iron Ore Pellet is used for reduction. 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 ...

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REDUCTION AND SWELLING BEHAVIOUR OF FIRED IRON

2012-5-11  The world production of sponge iron has increased from 17.68 MT in 1990 to 69.95 MT in 2010. Presently, India has emerged as the largest producer of DRI (26.30 MT in 2010) in the world. Out of this 26.30 MT, the contribution of coal-based sponge iron plants was 19.10 MT and rest of gas-based plants [2]. This large difference is due to scarcity ...

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TO STUDY THE REDUCTION SWELLING BEHAVIOUR OF

2013-12-6  2.5 Industrial significance- 12 2.6 Mechanism of swelling- 12-13 2.7 Thermodynamics and kinetics of iron ore reduction- 13-15 Chapter 3 16-20 3. Experimental 16-20 3.1 Material Selection- 17-18 3.2 Experimental Procedure- 18-19 3.3 Determination of degree of reduction of Iron-ore pellets- 19 3.4 Determination of degree of 19swelling- -20 3.5 Determination of Drop Number- 20

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Sponge Iron - Manufacturers Suppliers in India

Sponge Pellet Sponge iron Pellets is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. Manufacturers of Pellets, sponge iron, tmt bars steel. Producers of quality iron products.

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Sponge Iron in Raipur, स्पंज आयरन, रायपुर,

Sponge iron is formed through the reduction of iron ore to metallic iron through reaction with carbon in the form of coal, etc. at approx. 1100 degree Celsius. Sponge iron is also referred to as direct reduced iron, metalized iron, or hot briquetted iron. Sponge iron is used in the iron and steel industry as a substitute for

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(PDF) Modeling of Rotary Kiln for Sponge Iron

A pellet of satisfactory metallization would not have any core Fe 2 O 3 left in it, while the parallel reduced layer would be restricted to very limited area in core.Iron ore of high grade is available in Orissa / Jharkhand and availability is not a problem.Only the high cost of iron ore is causing a dent in the economics of scale of sponge ...

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Production of metallurgical pellets in rotary kilns ...

Continuously operated rotary kilns fired internally by combustion of fuel and operated with the flame and the resultant combustion gases moving countercurrent to the flow of heated material are well known. They have been used for the reduction of iron oxides to sponge iron grains and pellets and in a known process wherein pellets of iron oxides ...

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Direct Reduced Iron Industry in India — Problems and

2012-12-18  SPONGE IRON QUALITY The rotary kiln sponge iron has lower metallisation (about 85 — 88% on the average) and low carbon content (0.1-0.2%) compared to gas based sponge iron (Metallisation of 92 — 94% and carbon content of 1.5 — 2%). The higher metallisation and higher carbon content of gas based sponge iron provide

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Iron Oxide Pellet - an overview ScienceDirect Topics

If iron oxide is reduced directly to metal using hydrogen, a dense iron phase forms on the surface of the pellet, making it difficult for reduction to proceed. However, if the H 2 /H 2 O ratio is chosen to make wüstite instead, this layer is porous and reduction to metal can occur rapidly afterward [ 51 ].

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