process making sponge iron rotary kiln

2021-07-15T06:07:37+00:00
  • OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION IN

    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 iron.

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  • SPONGE IRON PLANT

    The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and Non-Coking coal. Limestone, in small quantities, is also required to scavenge the sulphur. IRON ORE The quality requirement of Sized ore for sponge iron

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

    The role of kiln is to convert the raw material (iron ore, coal and dolomite) into the sponge iron. 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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  • (PDF) Modeling of Rotary Kiln for Sponge Iron Processing ...

    Simulation of Rotary Cement Kilns Using a One-Dimensional Model By Vivek Ranade 523-1 Designing of an Intelligent Fuzzy Logic System for Accretion Prevention in Sponge Iron SL/RN Rotary Kiln Based 100TPD Dri Process

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  • New Sponge Iron Rotary Kiln Design In Sponge Iron ...

    Sep 10, 2020  During the sponge iron manufacturing process, hot air enters through the air tube and air nozzle of the sponge iron kiln, providing heat for the reaction. The mixture first enters the preheating zone of the sponge iron rotary kiln and is heated to the reaction temperature.

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  • sponge iron process

    Jul 29, 2010  In general sized iron ore of 5-18mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 15-20%.The mean particle size of iron ore shall be restricted to 11mm in order to achieve uniform Fe metallic of all grain size fraction of the product.

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

    3.3 Schematic of optimised Rotary kiln sponge iron making process 21 4.1 Industrial view of Sponge Iron making Rotary Kiln 24 4.2 Schematic view of internal heat exchange in Rotary kiln 26 4.3 Schematic view of Lobe Blower. 27 4.4 Schematic view of Air material flow in Rotary kiln 27 4.5 Filling of Bed Geometry 28

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  • Accretion Control in Sponge Iron Production Kiln using ...

    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 process is carried out in an inclined horizontal rotary kiln, which rotates at a programmed speed.

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  • Sponge iron making process - SlideShare

    Nov 09, 2014  ROTARY COOLER The product is conveyed to the product separation and storage building The product is Sponge iron and char Place that spraying a controlled amount of water directly into hot solids and by spraying additional water outside the cooler shell 12. SCREENING + 10 mm 3

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  • SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE

    Abstract: Today India stands as the largest producer of coal based sponge iron through rotary kiln process using calibrated ore and non coking coal. 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.

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  • [PDF] Rotary Kiln Process of Making Sponge Iron 2 . 1 ...

    Consequently, they were replaced by the high production rate ‘indirect process,’ and the development of modern DR Process did not begin until the middle of 19th century. Perhaps the very first patent in U.K. for sponge iron making was in 1792 presumably using a rotary kiln. More than 100 DR processes have been invented and operated since 1920.

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  • (PDF) Modeling of Rotary Kiln for Sponge Iron Processing ...

    Simulation of Rotary Cement Kilns Using a One-Dimensional Model By Vivek Ranade 523-1 Designing of an Intelligent Fuzzy Logic System for Accretion Prevention in Sponge Iron SL/RN Rotary Kiln Based 100TPD Dri Process

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  • New Sponge Iron Rotary Kiln Design In Sponge Iron ...

    Sep 10, 2020  Sponge Iron Manufacturing Process of New Design Sponge Iron Rotary Kiln Energy Comprehensive Utilization System. The iron concentrate, dolomite, and coal from the stockyard enter into three groups of metering pneumatic conveying devices of the feeding system for metering. The measured iron concentrate, dolomite, and 50% of coal all enter the ...

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  • 2 D Model of Sponge Iron Rotary Kiln Developed Using CFD

    2II. Rotary kiln: Operation and construction details A schematic diagram of the rotary kiln of sponge iron process considered for the present work is shown in Fig. 1. The rotary kiln consists of a rotating cylindrical shell lined inside with refractory material. The kiln is around 80 m long with 4 m

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  • Accretion Control in Sponge Iron Production Kiln using ...

    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 process is carried out in an inclined horizontal rotary kiln, which rotates at a programmed speed.

  • Get Price
  • Sponge iron making process - SlideShare

    Nov 09, 2014  Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 2. IRON ORE • Iron = 65-67 % • SiO2 + Al2O3 = 2-3 % • CaO + MgO = 0,5-1 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 5-18 mm • Shatter Index = +95 % • Tumbler index = +88 % • Reducibility Index = +94 % • Thermal Degradation Index = 5 % Physical Composition

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  • SPONGE IRON PRODUCTION FROM ORE -COAL

    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 sponge iron in tunnel kilns.

  • Get Price
  • Sponge Iron - an overview ScienceDirect Topics

    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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  • Super Refractories - Sponge Iron Production

    For Sponge Iron production by Direct Reduction Process CUMI offers the following solutions. COAL BASED SPONGE IRON ROTARY KILN. svenska casino spel. Application: Recommended Products: AFTER BURNING CHAMBER (ABC) CUMICRETE CK 14 SI: ABC BACK UP : CUMICRETE CII 104SI:

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  • Modelling and optimization of a rotary kiln direct ...

    The kiln model applied in this work was developed by Hatch over a number of years and has been used for several rotary kiln projects. It has its roots in a FORTRAN program that was developed by Venkateswaran (1978) to study the reduction of iron ore. The original software was used to model the operation of a 35 m pilot kiln at the Stellco company

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  • DRI UPDATE - Sponge Iron Manufacturer India

    2. ED, SIMA requested the participants to volunteer to spare their rotary kiln for carrying out the RD for exploring the use of Syn Gas in the rotary kiln. Mr. T Srinivasa Rao, MD, Balajiswamy Premium Steels Pvt Ltd offered his 50TPD kiln for this purpose. 3. Presentation from Tata Sponge Iron Ltd was very much liked and lot of the people showed

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  • Energy survey of the coal based sponge iron industry ...

    Sep 01, 2015  In the sponge iron process concentrated and finely divided iron ore is reduced in solid phase into sponge iron at high temperatures in rotary kiln. The process is very energy demanding. In order to identify the largest losses and to find ways to increase the efficiency, an energy survey of the sponge iron plant was carried out for a number of ...

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  • Rotary Kiln with SL/RN Process - Steel-making Solution ...

    Rotary Kiln with SL/RN Process Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, and 500 TPD) Solid-state reduction of Iron Ore using either coal/gas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron (DRI).

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  • Direct Reduced Iron and its Production Processes – IspatGuru

    Mar 16, 2013  Fig 2 Principle of direct reduction process. Gas based process. In the gas based reduction processes, a vertical shaft kiln is used in which iron ore is fed into the top of the kiln and finished sponge iron is drawn off from the bottom after cooling it so as to prevent its re-oxidation.

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

    Index Terms—Sponge iron process, rotary kiln, temperature profile, artificial neural network. I. INTRODUCTION Sponge iron is the metallic form of iron produced from reduction of iron oxide below the fusion temperature of iron ore (1535oC) by utilizing hydrocarbon gases or

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  • [PDF] Rotary Kiln Process of Making Sponge Iron 2 . 1 ...

    Consequently, they were replaced by the high production rate ‘indirect process,’ and the development of modern DR Process did not begin until the middle of 19th century. Perhaps the very first patent in U.K. for sponge iron making was in 1792 presumably using a rotary kiln. More than 100 DR processes have been invented and operated since 1920.

  • Get Price
  • (PDF) Modeling of Rotary Kiln for Sponge Iron Processing ...

    Simulation of Rotary Cement Kilns Using a One-Dimensional Model By Vivek Ranade 523-1 Designing of an Intelligent Fuzzy Logic System for Accretion Prevention in Sponge Iron SL/RN Rotary Kiln Based 100TPD Dri Process

  • Get Price
  • 2 D Model of Sponge Iron Rotary Kiln Developed Using CFD

    2II. Rotary kiln: Operation and construction details A schematic diagram of the rotary kiln of sponge iron process considered for the present work is shown in Fig. 1. The rotary kiln consists of a rotating cylindrical shell lined inside with refractory material. The kiln is around 80 m long with 4 m

  • Get Price
  • SPONGE IRON PRODUCTION FROM ORE -COAL

    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 sponge iron in tunnel kilns.

  • Get Price
  • Sponge Iron - an overview ScienceDirect Topics

    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 ...

  • Get Price
  • Sponge Iron – Prakash Industries Limited

    In the solid reduction process iron ore is converted into DRI in a rotary kiln fired by non-coking coal. Iron ore, coal and dolomite in pre-measured quantities are fed into the kiln, which is

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  • Sponge Iron Iron Steelmaking

    Gas-Based Process: This process utilizes natural gas as the reducing agent. Natural gas is reformed to enrich with H2 and CO mixture and this enriched and reformed gas mixture is preheated in gas-based process. A vertical retort is used for the reduction of iron ore as against a rotary kiln in coal based sponge iron process.

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  • Modelling and optimization of a rotary kiln direct ...

    The kiln model applied in this work was developed by Hatch over a number of years and has been used for several rotary kiln projects. It has its roots in a FORTRAN program that was developed by Venkateswaran (1978) to study the reduction of iron ore. The original software was used to model the operation of a 35 m pilot kiln at the Stellco company

  • Get Price
  • Super Refractories - Sponge Iron Production

    For Sponge Iron production by Direct Reduction Process CUMI offers the following solutions. COAL BASED SPONGE IRON ROTARY KILN. svenska casino spel. Application: Recommended Products: AFTER BURNING CHAMBER (ABC) CUMICRETE CK 14 SI: ABC BACK UP : CUMICRETE CII 104SI:

  • Get Price
  • DRI UPDATE - Sponge Iron Manufacturer India

    2. ED, SIMA requested the participants to volunteer to spare their rotary kiln for carrying out the RD for exploring the use of Syn Gas in the rotary kiln. Mr. T Srinivasa Rao, MD, Balajiswamy Premium Steels Pvt Ltd offered his 50TPD kiln for this purpose. 3. Presentation from Tata Sponge Iron Ltd was very much liked and lot of the people showed

  • Get Price
  • 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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  • Study on Air Tubes Failure in Sponge Iron Rotary Kiln

    Abstract: The rotary kiln process is a commonly practiced method in the industry for producing sponge iron using coal. In the industry, there have been recent reports of premature failures of certain air tubes in a rotary kiln. Most of those cases have concentrated on those air tubes which

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  • Making Sponge Iron With Rotary Kiln

    Sponge Iron Composition Manufacturing Process. Sponge iron making is a process in which iron ore lumps typically 5mm18mm size are tumbled with a select grade of ironcoking coal little dolomite inside an inclined rotary kiln and control combusted in the presence of air for about 12 hours before the products are air cooled magnetically separated screened and size wise in finished

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