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

Sponge iron is a type of iron produced by coal based or gas-based reduction of iron ore. It is difficult to measure and control the degree of reduction or quality of the iron ore at intermediate

Coal based Direct Reduction Rotary Kiln Process IspatGuru

2017-2-14  Boudouard reaction, dolomite, DRI, Iron ore, metallization, non coking coal, pellets, reduction, Rotary kiln, Sponge iron, Sulphur, Coal based Direct Reduction Rotary Kiln Process . The coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic iron without the melting of the materials.

Coal & Gas based DRI Plant Rotary Kiln for Making Sponge

We manufacture Sponge Iron Plant on turn-key basis of different functional capacities i.e. 100 TPD, 300 TPD, 500 TPD plants.The equipment support provided for the plants include Kiln/cooler tyre, Kiln/cooler support roller, Kiln/cooler support roller shaft, Kiln/cooler support roller assembly with bearing housing, Kiln/cooler girth gear, Kiln/cooler pinions, Kiln/cooler pinion shaft, Kiln

SPONGE IRON PLANT

2018-9-24  MANUFACTURING PROCESS Coal based Direct reduction process is classified based on the reducing agent namely solid. Most solid reduction process use non-coking coal as reducing agent due to abundantly available non-coking coal. The process proposed to be adopted is the rotary kiln proposes using Non-coking coal and iron ore.

SPONGE IRON PRODUCTION FROM ORE -COAL

2014-9-2  SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE PELLETS IN TUNNEL KILN . S.C.Khattoi. 1*,G. G. Roy2 1 Project & Engineering Consultancy, Keonjhar, Odisha, India 2 . Indian Institute of Technology, Kharagpur 721302, India. Abstract: Today India stands as the largest producer of coal based sponge iron through rotary kiln process using

OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION

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

Energy survey of the coal based sponge iron industry

2015-9-1  In conventional coal based sponge iron plant, Fig. 1, kiln feed (Stream no. 1), which consists of iron ore, feed coal and dolomite, is fed to the rotary kiln (RK).A separate conveyor collects different size fractions of coal (Stream no. 5) for injection into the kiln with the help of pressurized air (Stream no. 4) from discharge end side.

sponge iron process

2010-7-29  Lump iron ore in the size range of 5-20mm can be used in all coal based rotary kiln processes. In gas based processes 70% iron ore pellets and 30% lump iron ore of 10-30mm are being used. In general high grade iron ore of 65% minimum Fe (total) with less decrepitating characteristics is preferred for use in rotary kiln. Reductant: Non coking

Process Description and flow diagram of Coal Based DRI Plant

2016-8-7  Coal plays a dual role in the Kiln. Part of coal is used as fuel to supply the desired heat so as to take the raw materials to the desired temp. But main role of coal is to supply carbon in the reduction process. Dolomite is used as sulphur scavenger which finally comes out with the char. Char contains ash of coal and other impurities of iron

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

Sponge Iron Sl Rn Rotary Kiln Rotary Kiln

Rotary Kiln With Slrn Process Electrothermentcom. 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

use of fines for sponge iron production in coal based

who make sponge iron from coal and iron ore process. use of fines for sponge iron production in coal based rotary kiln steel sector and induction furnaces for using sponge iron fines. tunnel kiln process sponge iron . Get Price Here !

ppt for rotary kiln process of making sponge iron rotary

2 KILN BASED SPONGE IRON PRODUCTION PROCESS 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)].

who make sponge iron from coal and iron ore process

SPONGE IRON Shakambhari Group. Sponge iron, also known as direct reduced iron is produced from hematite iron ore to 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 consistent chemical amp physical characteristics

SPSIL-National TMT

The coal based rotary kiln process of making sponge iron is the focus of the present write up. Although many different processes and 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.

kiln process sponge iron crusher visueelvertaler.be

SPONGE IRON PLANT. The Rotary Kiln process is a well-established process for production of coal based sponge iron. Rotary kiln of certain dia and length is provided for reduction of Iron Ore into sponge iron using non-coking coal as reductant and Dolomite as sulphur scavenger; however the Diameter and Length are to be designed based on the Plant Capacities.get price

(PDF) Operability Analysis of Direct Reduction of Iron Ore

Direct reduction of low-grade iron ore pelleted with coal was investigated using a pilot-scale rotary kiln. The evolution of the iron minerals, the strength of the pellets, and the emission

Sponge Iron MSPSteel

MANUFACTURING PROCESS. In the DRI plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material like coal or lignite. The reduction is carried out in a rotary Kiln (which is inclined and rotates at a pre-determined range of speed) at a stipulated temperature ( 850 °C 1050°C).

sponge iron production in rotary kiln

Sponge Iron Production in Rotary Kiln Arabinda . The increase in the demand of sponge iron is also due to the fact that it is used as a substitute for coking coal which is available in scarcity in the world 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

Change Of Rotary Kiln From Sponge Iron To Cement C

2020-1-15A rotary kiln is a pyroprocessing device used to raise materials to a high temperature calcination in a continuous process Materials produced using rotary kilns include Cement Lime Refractories. More Details Rotary Kiln Cement Rotary Kiln and Sponge Iron Rotary Kiln. Rotary kiln The hot gases may be generated in an external furnace or

Sponge Iron Sl Rn Rotary Kiln Rotary Kiln

Rotary Kiln With Slrn Process Electrothermentcom. 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

ppt for rotary kiln process of making sponge iron rotary

2 KILN BASED SPONGE IRON PRODUCTION PROCESS 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)].

who make sponge iron from coal and iron ore process

SPONGE IRON Shakambhari Group. Sponge iron, also known as direct reduced iron is produced from hematite iron ore to 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 consistent chemical amp physical characteristics

kiln process sponge iron crusher visueelvertaler.be

SPONGE IRON PLANT. The Rotary Kiln process is a well-established process for production of coal based sponge iron. Rotary kiln of certain dia and length is provided for reduction of Iron Ore into sponge iron using non-coking coal as reductant and Dolomite as sulphur scavenger; however the Diameter and Length are to be designed based on the Plant Capacities.get price

Sponge Iron MSPSteel

MANUFACTURING PROCESS. In the DRI plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material like coal or lignite. The reduction is carried out in a rotary Kiln (which is inclined and rotates at a pre-determined range of speed) at a stipulated temperature ( 850 °C 1050°C).

(PDF) Operability Analysis of Direct Reduction of Iron Ore

Direct reduction of low-grade iron ore pelleted with coal was investigated using a pilot-scale rotary kiln. The evolution of the iron minerals, the strength of the pellets, and the emission

tunnel kiln process sponge iron

tunnel kiln process of iron ore reduction. Sponge iron production in tunnel kiln Aramico Although iron powder could be produced in sponge iron tunnel kiln production line and it is the main raw material for powder metallurgy production lines.

Buy Sponge Iron Production in Rotary Kiln Book Online at

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.

Sponge Iron Iron Steelmaking

2017-7-31  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.

Process of producing sponge iron by a direct reduction of

What is claimed is: 1. In a process of producing sponge iron by a direct reduction of iron oxide-containing materials including prereducing a charge in a fluidized bed and final reducing the charge below the melting point of the charge in a rotary kiln, the improvement which comprises prereducing fine-grained materials which contain iron oxide and have an iron content in a fluidized bed to