rotary kiln process of making sponge iron c

OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION IN

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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(PDF) Operation of Coal-Based Sponge Iron Rotary Kiln to ...

Also, the process conditions in a sponge iron rotary kiln are dynamic in nature. Hence, the quality keeps fluctuating and is not a constant value. A mathematical mass ...

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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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SPONGE IRON PLANT

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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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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Extractive Metallurgy: Sponge Iron Making

Oct 11, 2013  The process proposed to be adopted is the rotary kiln proposes using Non-coking coal and iron ore. Iron are undergoes the following reduction reaction in all the processes. Based on Fig 3. seen that the reaction start at Temperature around 700 oC with 60% of CO at 1 atm.

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SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE

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

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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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sponge iron process

Aug 03, 2011  COAL INJECTION IN ROTARY KILN K.Ramu, C.Ramesh, A.Rajasekaran During the process of manufacture of sponge iron, coal injection plays a very vital role in maintaining the product quality. Due to highly endothermic nature of Boudouard reaction, heat has to be continuously supplied in entire reduction zone of rotary kiln.

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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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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 carbonaceous fuels as coal. The reduced iron having high

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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.

More

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

More

sponge iron production in rotary kiln - Chauffage Nanni

Rotary Kiln Process of Making Sponge Iron C. Rotary Kiln Process of Making Sponge Iron 21 HISTORICAL BACKGROUND The production of steel began in ancient times; but because of the complexity and slow speed of the ancient process, they could not be carried out on a very large scale.

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Extractive Metallurgy: Sponge Iron Making

Oct 11, 2013  The process proposed to be adopted is the rotary kiln proposes using Non-coking coal and iron ore. Iron are undergoes the following reduction reaction in all the processes. Based on Fig 3. seen that the reaction start at Temperature around 700 oC with 60% of CO at 1 atm.

More

Sponge Iron Calcination Rotary Kiln Iron Ore - Buy Iron ...

Sponge Iron Calcination Rotary Kiln Iron Ore , Find Complete Details about Sponge Iron Calcination Rotary Kiln Iron Ore,Iron Ore,Rotary Kiln Iron Ore,Sponge Iron from Cement Making Machinery Supplier or Manufacturer-Gongyi Derui Machinery Co., Ltd.

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SPONGE-IRON - Shakambhari Group

Sponge Iron, also known as Direct Reduced Iron is produced from Hematite Iron ore (5 to 18 mm size) by removing the oxygen by direct reduction process using non coking coal as the fuel and reducing agent in Rotary Kiln. Sponge iron is rich in Metallic Iron (Pure Iron) with

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Direct Reduction Process - an overview ScienceDirect Topics

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 produced in the form of Direct Reduced Iron (DRI), Hot Briquetted Iron (HBI) and Cold Briquetted Iron (CBI); also Low Reduced Iron (LRI), which is pre ...

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Rotary Kiln Process Of Making Sponge Iron

Rotary kiln process has to compete mainly. with the shaft process of making sponge iron. and in some cases with iron making blast. furnace. As compared to them the rotary kiln. has some advantages as also some limitations both with respect to the process and the. product it makes.

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Sponge Iron – Prakash Industries Limited

Sponge iron is a highly processed form of iron ore which contains metallic iron in the range of 83-88% obtained by direct reduction without melting it. Due to high porosity, the resulting iron is called sponge iron. It is used as a raw material for manufacturing steel

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China Rotary Kiln Process of Making Sponge Iron - China ...

Model NO.: Rotary Kiln Process of Making Sponge Iron Type: Iron-Making Equipment Certification: ISO Lateritic Nickel Rotary Kiln: Rotary Kiln for Laterite Nickel Ore Calcining Output: 80-100 T/H(Roasted Sand) Application: Roasting Laterite Ores

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tunnel kiln process for sponge iron making - MC World

SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE . Tunnel kiln furnace are evolving as an alternative to Rotary kiln process. Iron ore fines and Iron ore fines and the low grade beneficiated iron ore cake are directly used for manufacturing of sponge iron

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Rotary Kiln Process Of Making Sponge Iron

Rotary Kiln Process of Making Sponge Iron C. The coal based rotary kiln process of making sponge iron is the focus of the present write up Although many different processes and CHAPTER 2 process concepts have been emerging in this area, there were rapid births and deaths of these processes and process concepts in the middle of the twentieth century But those operating

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WELSPUN STEEL LIMITED

The process of sponge iron making aims to remove the oxygen from iron ore. The quality of sponge iron is primarily ascertained by the percentage of metallization (removal of oxygen), which is the ratio of metallic iron to the total iron present in the product. ... For the direct reduction of iron ore the main furnace used is rotary kiln. The ...

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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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China Rotary Kiln Process of Making Sponge Iron - China ...

Model NO.: Rotary Kiln Process of Making Sponge Iron Type: Iron-Making Equipment Certification: ISO Lateritic Nickel Rotary Kiln: Rotary Kiln for Laterite Nickel Ore Calcining Output: 80-100 T/H(Roasted Sand) Application: Roasting Laterite Ores

More

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

More

Extractive Metallurgy: Sponge Iron Making

Oct 11, 2013  The process proposed to be adopted is the rotary kiln proposes using Non-coking coal and iron ore. Iron are undergoes the following reduction reaction in all the processes. Based on Fig 3. seen that the reaction start at Temperature around 700 oC with 60% of CO at 1 atm.

More

sponge iron production in rotary kiln - Chauffage Nanni

Rotary Kiln Process of Making Sponge Iron C. Rotary Kiln Process of Making Sponge Iron 21 HISTORICAL BACKGROUND The production of steel began in ancient times; but because of the complexity and slow speed of the ancient process, they could not be carried out on a very large scale.

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Sponge ITC, Sponge Iron,India Iron Consultant

Non-coking coal is used as reluctant in the rotary kiln process. The major quality requirements of coal for Sponge iron production are-1) Non-coking characteristics 2) Low ash content 3) Low sulphur content 4) Good reactivity 5) High ash fusion temperature 6) Medium volatile matter

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Direct Reduction Process - an overview ScienceDirect Topics

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 produced in the form of Direct Reduced Iron (DRI), Hot Briquetted Iron (HBI) and Cold Briquetted Iron (CBI); also Low Reduced Iron (LRI), which is pre ...

More

tunnel kiln process for sponge iron making - MC World

SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE . Tunnel kiln furnace are evolving as an alternative to Rotary kiln process. Iron ore fines and Iron ore fines and the low grade beneficiated iron ore cake are directly used for manufacturing of sponge iron

More

Sponge Iron – Prakash Industries Limited

Sponge iron is a highly processed form of iron ore which contains metallic iron in the range of 83-88% obtained by direct reduction without melting it. Due to high porosity, the resulting iron is called sponge iron. It is used as a raw material for manufacturing steel

More

tunnel kiln process sponge iron in south africa

tunnel kiln process sponge iron in south africa. tunnel kiln process sponge iron in south africa There are forty years of manufacturing history with three major production basesover 160 senior RD engineers and 600 large and mediumsized digital processing equipment The firstline technicians and professional aftersales service personnel up to 2300 and 200 respectively...

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aerodynamics inside a sponge iron rotary kiln

Sponge Iron Composition Manufacturing Process . Sponge iron making is a process in which iron ore lumps (typically 5mm-18mm size) are tumbled with a 'select' grade of iron-coking 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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Rotary Kiln Sponge Iron In South Africa

Tunnel kiln process for sponge iron making. Tunnel kiln process for sponge iron making in nigeria - xsm in huanggang z kilnfurnace co,ltd our company has made the sponge iron tunnel kiln and matching refueling system equipment intechnical essence of hoganas tunnel kiln process. View All; Tunnel kiln process sponge iron in south africa

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Sponge Iron Production in Rotary Kiln: Sarangi, Bidyapati ...

This book comprehensively deals with the production of sponge iron in the rotary kiln. The book is divided into 17 chapters. The initial chapters give a brief on the fundamental theories and basic principles of sponge iron production, commercially used DR (direct reduction) processes and physico-chemical principles of sponge iron production.

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Sponge Iron Rotary Kiln-Zhengzhou Taida Rotary Kiln Supplier

Sponge Iron Rotary Kiln. Specifications: Sponge iron is a kind of superior iron ore. It can be got by oxidation-reduction reaction. In sponge iron rotary kiln, vertical furnace and other reactor, iron ore and other iron ore concentrates are reduced in low temperature condition and

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Sponge Iron Production in Rotary Kiln: Sarangi, Bidyapati ...

This book comprehensively deals with the production of sponge iron in the rotary kiln. The book is divided into 17 chapters. The initial chapters give a brief on the fundamental theories and basic principles of sponge iron production, commercially used DR (direct reduction) processes and physico-chemical principles of sponge iron

More

Extractive Metallurgy: Sponge Iron Making

Oct 11, 2013  The process proposed to be adopted is the rotary kiln proposes using Non-coking coal and iron ore. Iron are undergoes the following reduction reaction in all the processes. Based on Fig 3. seen that the reaction start at Temperature around 700 oC with 60% of CO at 1 atm.

More

2 D Model of Sponge Iron Rotary Kiln Developed Using CFD

II. 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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sponge iron production in rotary kiln - Chauffage Nanni

Rotary Kiln Process of Making Sponge Iron C. Rotary Kiln Process of Making Sponge Iron 21 HISTORICAL BACKGROUND The production of steel began in ancient times; but because of the complexity and slow speed of the ancient process, they could not be carried out on a very large scale.

More

aerodynamics inside a sponge iron rotary kiln

Sponge Iron Composition Manufacturing Process . Sponge iron making is a process in which iron ore lumps (typically 5mm-18mm size) are tumbled with a 'select' grade of iron-coking 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

More

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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Sponge Iron – Prakash Industries Limited

Sponge iron is a highly processed form of iron ore which contains metallic iron in the range of 83-88% obtained by direct reduction without melting it. Due to high porosity, the resulting iron is called sponge iron. It is used as a raw material for manufacturing steel

More

rotary kiln sponge iron making notes

Sponge iron making process SlideShare. Nov 09, 2014 Making process iron ore to sponge iron No notes for slide Sponge iron making process 1 ROTARY KILN 9 ROTARY KILN 10 ROTARY COOLER The product come to the water cooled Where its temperature reaches to 80100 C 11 ROTARY COOLER The product is conveyed to the product separation and storage building The product is Sponge iron

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Modelling and optimization of a rotary kiln direct ...

H.P. Kritzinger and T.C. Kingsley 51 Modelling and optimization of a rotary kiln direct reduction process H.P. Kritzinger and T.C. Kingsley Hatch Goba Rotary kilns are used for a variety of mineral processing operations. Hatch makes use of a kiln model developed from first principles to evaluate designs for its clients. This tool has

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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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Rotary Kiln Sponge Iron In South Africa

Tunnel kiln process for sponge iron making. Tunnel kiln process for sponge iron making in nigeria - xsm in huanggang z kilnfurnace co,ltd our company has made the sponge iron tunnel kiln and matching refueling system equipment intechnical essence of hoganas tunnel kiln process. View All; Tunnel kiln process sponge iron in south africa

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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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Tunnel Kiln - Steel-making Solution Provider

These pellets are then used for making sponge iron. Rotary kilns have a drawback upon the size and quality of iron ore that can be used. Initially, when the process was first introduced, the ore with an iron content >/= 65% was preferred and the preferred size of ore was 5-18mm.

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tunnel kiln process for sponge iron making manganese crusher

Tunnel Kiln Process For Iron Making. Magnetic ore iron reduction process in tunnel kiln india tunnel kiln for making coke .tunnel kiln in kolkata, west bengal, india kilns are for continuous operation the charge material shall enter the kiln at room temperature and the exit temperature shall be between 80226 110194186 c tunnel kiln for different fuels eg lpg, producer gas, .

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