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pdf sponge iron tunnel kiln process

pdf sponge iron tunnel kiln process

(PDF) Production of Sponge Iron through Tunnel Kiln

PDF On Apr 1, 2010, Swaren Bedarkar and others published Production of Sponge Iron through Tunnel Kiln Process Find, read and cite all the research you need on ResearchGate

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SPONGE IRON PRODUCTION FROM ORE -COAL

2014-9-2  Tunnel kiln furnace are evolving as an alternative to Rotary kiln process. Iron ore fines and the low grade beneficiated iron ore cake are directly used for manufacturing of sponge iron in tunnel kilns. The material bed in Tunnel kiln being stationary, it does not require high strength and thermal stability of the raw material.

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OPERATIONAL ASPECTS OF SPONGE IRON

2012-1-10  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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SPONGE IRON PLANT

2018-9-24  Sponge iron being magnetic gets attracted and gets separated from non- magnetic char. The iron ore and coal crushed and screened to respective sizes are fed to rotary kiln through feed tube in pre-determined ratio. The rotary kiln is slightly inclined at an angle 2.5 deg and rotated by

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Simulation of Rotary Kiln Used in Sponge Iron Process ...

2015-2-15  out. The role of kiln is to convert the raw material (iron ore, coal and dolomite) into the sponge iron [8]. Detail reaction mechanism of the process is discussed below: There are two reduction reactions. First reaction converts iron ore to iron oxide which further reacts with CO to produce metallic iron (Fe) which is called sponge iron.

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Energy Audit Methodology of Sponge Iron

2014-9-15  sponge iron manufacturing process or kiln operation with a view to finding out major energy sav-ing potential of the unit. In the research work we find that it is the incomplete reaction of coal that causes the major energy inefficiency in the process. Substantial amount of un-reacted carbon

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A Thesis Submitted for Partial Fulfillment of the Degree ...

2012-5-29  1.1 Image of a Sponge Iron Granule 2 1.2 Microscopic view of sponge iron 4 3.1 Material Balance in a Rotary Kiln sponge iron plant 14 3.2 Energy Balance in a Rotary Kiln sponge based iron making 14 3.3 Schematic of optimised Rotary kiln sponge iron making process 21 4.1 Industrial view of Sponge Iron making Rotary Kiln 24

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Biochar in the Höganäs sponge iron process – techno ...

2018-6-18  utilization in the production of sponge iron by reduction of magnetite ore concentrate. The sponge iron process was created in 1910 by Sven Emil Sieurin, and is a solid-state reduction process with a fine iron powder as the end product (Nationalencyklopedin, 2018). Today the sponge iron process

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(PDF) Dynamic Modeling of a Tunnel Kiln

Modeling and optimization were studied by (Kaya et al., 2009) for a tunnel kiln firing zone to find the optimal feed locations and mass fluxes of the pulverized coal and secondary air.

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Rotary Kiln Maintenance Procedures

2019-6-15  Rotary Kiln Maintenance Procedures State of the Art Rotary Kiln Maintenance Technology 5078 Bristol Industrial Way, Bldg 100, Buford, GA 30518 Phone (770) 831-8229 Fax (770) 831-3357

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OPERATIONAL ASPECTS OF SPONGE IRON

2012-1-10  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 ...

Read More
Simulation of Rotary Kiln Used in Sponge Iron Process ...

2015-2-15  out. The role of kiln is to convert the raw material (iron ore, coal and dolomite) into the sponge iron [8]. Detail reaction mechanism of the process is discussed below: There are two reduction reactions. First reaction converts iron ore to iron oxide which further reacts with CO to produce metallic iron (Fe) which is called sponge iron.

Read More
Energy Audit Methodology of Sponge Iron

2014-9-15  sponge iron manufacturing process or kiln operation with a view to finding out major energy sav-ing potential of the unit. In the research work we find that it is the incomplete reaction of coal that causes the major energy inefficiency in the process. Substantial amount of un-reacted carbon

Read More
Sponge Iron Production From Ore-Coal Composite Pellets

However, Rotary kiln process suffers from serious limitations like low productivity and pollution. In this respect fixed bed Tunnel kiln furnace are evolving as an alternative to Rotary kiln process. Iron ore fines and the low grade beneficiated iron ore cake are directly used for manufacturing of

Read More
Biochar in the Höganäs sponge iron process – techno ...

2018-6-18  utilization in the production of sponge iron by reduction of magnetite ore concentrate. The sponge iron process was created in 1910 by Sven Emil Sieurin, and is a solid-state reduction process with a fine iron powder as the end product (Nationalencyklopedin, 2018). Today the sponge iron process

Read More
Direct Reduced Iron Industry in India — Problems and

2020-5-6  `the quality requirements for the rotary kiln sponge iron process. The sponge iron fines generation is high and ranges from 15 — 30% depending upon the ore used due to high reduction degradation. This will not only reduce the sales realization of the product but also will lead to accretion formation in the kiln shortening the campaign life.

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Bhagwati Sponge Private Limited

2014-8-25  +1x350) TPD DRI Kilns for production of 1,65,000 TPA Sponge Iron. So, the final will be 2,25,000 TPA Sponge Iron. Manufacturing Process The plant uses the coal based process in which pellet is reduced with non-coking type imported coal in a rotary kiln to make sponge iron.

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Sponge Iron Production Process - Arij Trading

2021-11-18  Market share: About 23% of sponge iron total production. 4) Tunnel furnace process . This process is the oldest direct reduction method. In this method, Thermal coal is mixed with iron ore as a reducing agent. Natural gas generates the required

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Recovery and utilization of waste heat in a coal based ...

2012-10-4  is seen that the growth of sponge iron industry in last few years is unremarkable and today India is the largest producer of sponge iron as it covers 16% of global output. According to Sponge Iron Manufacturers Association [1], India has produced around 23 million tonnes of sponge iron in the financial year of 2009–2010. Sponge

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Misra Group Ceramics Sponge Iron Manufacturing (DRI)

The pilot project that was setup for 0.1 million Tons P.A capacity under the guidance of Prof. G.G Roy Dept of Metallurgy IIT Khargapur, has been successful and has exceeded all the expectations with the technological breakthrough in the process of Iron ore reduction or Sponge iron manufacturing through a tunnel kiln instead of the conventional ...

Read More
Simulation of Rotary Kiln Used in Sponge Iron Process ...

2015-2-15  out. The role of kiln is to convert the raw material (iron ore, coal and dolomite) into the sponge iron [8]. Detail reaction mechanism of the process is discussed below: There are two reduction reactions. First reaction converts iron ore to iron oxide which further reacts with CO to produce metallic iron (Fe) which is called sponge iron.

Read More
Energy Audit Methodology of Sponge Iron

2014-9-15  sponge iron manufacturing process or kiln operation with a view to finding out major energy sav-ing potential of the unit. In the research work we find that it is the incomplete reaction of coal that causes the major energy inefficiency in the process. Substantial amount of un-reacted carbon

Read More
Energy integration of sponge iron production process

2012-10-19  this fact the heat integration study is done in the sponge iron process by pre-heating the kiln feed mixture (iron ore, coal, dolomite) and kiln air using waste gas exiting from ESP. The waste gas from ESP is at 220ºC is carried out through duct to the rotary kiln and a return duct is used to carry the waste gas at from kiln to the chimney. IV.

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Iron - Manufacturing process related to the specified ...

2014-1-14  Sponge iron powder . The Höganäs process is a direct reduction method for production of sponge iron powder using magnetite ore (Fe3O4) and carbon as raw materials. The reduction process takes place in a gas fired tunnel kiln at around 1200°C for 60 hours producing a sponge iron cake that is crushed, milled and

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PROCESS FOR PRODUCTION OF SPONGE IRON -

Process for production of sponge iron by direct reduction of iron ore wherein iron ore admixed with a carbonaceous reducing agent is passed through a rotary kiln countercurrent to a gas stream, and wherein granular coking high volatile coal is injected co-current to said gas stream as a solid reducing agent by means of oxygen containing gases through an inlet pipe, and said solid reducing ...

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Sponge Iron Production Process - Arij Trading

2021-11-18  Market share: About 23% of sponge iron total production. 4) Tunnel furnace process . This process is the oldest direct reduction method. In this method, Thermal coal is mixed with iron ore as a reducing agent. Natural gas generates the required

Read More
Recovery and utilization of waste heat in a coal based ...

2012-10-4  is seen that the growth of sponge iron industry in last few years is unremarkable and today India is the largest producer of sponge iron as it covers 16% of global output. According to Sponge Iron Manufacturers Association [1], India has produced around 23 million tonnes of sponge iron in the financial year of 2009–2010. Sponge

Read More
Rotary Kiln Maintenance Procedures

2019-6-15  Rotary Kiln Maintenance Procedures State of the Art Rotary Kiln Maintenance Technology 5078 Bristol Industrial Way, Bldg 100, Buford, GA 30518 Phone (770) 831-8229 Fax (770) 831-3357

Read More
Misra Group Ceramics Sponge Iron Manufacturing (DRI)

The pilot project that was setup for 0.1 million Tons P.A capacity under the guidance of Prof. G.G Roy Dept of Metallurgy IIT Khargapur, has been successful and has exceeded all the expectations with the technological breakthrough in the process of Iron ore reduction or Sponge iron manufacturing through a tunnel kiln instead of the conventional ...

Read More
STATE OF THE DIRECT REDUCTION AND REDUCTION

2007-4-16  of 2000, which display a constant increase in the modern process metallurgy. Keywords: iron, coal, direct reduction, reduction smelting, main processes, reduction. 1. Introduction The processes that produce iron by reduction of iron ore below the melting point of the iron produced are generally classified as direct reduction processes, and the

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