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production of sponge iron through rotary kiln Search:

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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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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Rotary Kiln Manufacturers Electrotherm ET

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). Since DRI is produced by removing oxygen from ...

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

Sep 10, 2020  In the newly designed sponge iron rotary kiln system, a coarse coal branch pipe and fine coal branch pipe are added at the kiln head. The original way of adding 100% coal at the kiln head is changed to 50-70% coal is added together with fine iron ore and dolomite through the mixing mode at the kiln tail, and the remaining 30-50% coal is added ...

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Coal based Direct Reduction Rotary Kiln Process – IspatGuru

Feb 14, 2017  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 degree and rotated by AC variable speed motor at a variable speed ranging from 0.2

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

Simulation of Rotary Kiln Used in Sponge Iron Process Using ANN IACSIT International Journal of Engineering and Technology, Vol. 6, No. 2, April 2014 DOI: 10.7763/IJET.2014.V6.673 95 Abstract—In the present study, estimation of actual output parameters is carried out for a sponge iron production

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Flow of materials in rotary kilns used for sponge iron ...

Looking forward to the need of developing coal-based sponge iron technology in India, a country having no significant resources of either coking coal or natural gas, the Research and Development Division of the Tata Iron and Steel Company Limited (TISCO) set up a rotary kiln based direct reduction pilot plant in 1975. In this pilot plant, a totally indigenous technology for production of ...

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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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Excellent Sponge Iron Kiln To Deal With Your ... - Rotary Kiln

Sponge iron kiln’s cylinder: The design of the sponge iron rotary kiln cylinder is more reasonable. The cylinder is rolled with a Q235-B steel plate to ensure five mechanical properties, usually with automatic welding. The wall thickness of the cylinder is generally 25 mm, and that of the firing zone is 32 mm.

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Sponge Iron Production In Rotary Kiln

Sponge Iron Production From Ore. 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.

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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.

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Computational fluid dynamics analysis of sponge iron ...

Mar 01, 2017  The geometry of rotary kiln of sponge iron process is developed using GAMBIT 2.4.6. Dimensions of kiln are 80 m length and 4 m internal diameter. The kiln is inclined to 2.5 degree to the horizontal and rotated with 4.3 rpm. Bed material consists of iron ore, coal and dolomite, enters the kiln through feed end.

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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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Modelling and optimization of a rotary kiln direct ...

Rotary kilns (Figure 1) are used for a range of mineral processing operations. Kilns range in size from 2–6 m in diameter and can be 50–225 m long with an operating mass of up to 3000 t. Two of the most common applications are for cement production and sponge iron production. Hatch has developed a proprietary one-dimensional kiln model to

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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 – Lloyd's Metals

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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Sponge Iron Production Line - Buy Sponge Iron Production ...

Sponge Iron Production Line, find complete details about Sponge Iron Production Line, Sponge Iron Production Line - WUXI NIANYUAN IMPORTEXPORT CO., LTD ... discharge when the dryer ball temperature of 500 ℃.500 ℃ iron powder ball directly into the rotary kiln sintering heating, the temperature reached 1100 ℃, high temperature iron powder ...

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(PDF) i) Direct Reduced Iron: Production

Mar 30, 2016  In book: Encyclopedia of Iron, Steel, and Their Alloys (pp.pp 1082-1108) Chapter: i) Direct Reduced Iron: Production; Publisher: CRC Press, Taylor and Francis Group, New York.

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sponge iron production line, sponge iron production line ...

Mining industry sponge iron rotary kiln production lines 1.Brief description of clinker rotary kiln : Our company owns the magnesium production line. The characteristics of a rotary kiln are with simple structure, convenient and reliable control of the producing

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US2754197A - Method and a rotary kiln for the manufacture ...

kiln iron air rotary kiln sponge iron Prior art date 1952-09-26 Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US311593A Inventor Wienert Fritz Otto Original Assignee

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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

Read 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 in tunnel kilns.

Read More
SPONGE-IRON - Shakambhari Group

In the Direct Reduced Iron (DRI) plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material such as coal. The reduction is carried out in a rotary kiln (which is inclined and rotates at a pre-determined range of speeds) at a stipulated temperature (850°C -1,500°C).

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Flow of materials in rotary kilns used for sponge iron ...

The present work identifies the basic features of burden movement in a rotary kiln. The cold model study was conducted with iron ore as the feed material to determine the influence of length to diameter ratio (L/D) of a rotary kiln on the filling degree, hold-up, and residence time of the charge. An empirical equation correlating different operating variables has been derived on the basis of ...

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CASE STUDY ON THRESHOLD PROBLEM Sponge Iron

will be referred through its respective number. Detailed operation of this plant is discussed in the work of Prasad et al. [2011]. The operating parameters for this process are shown in Table 1. Fig. 1 Process flow diagram of the sponge iron process with material and energy balanced data ROTARY KILN (RK) (900 C) (1020 C) Total air

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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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Computational fluid dynamics analysis of sponge iron ...

Mar 01, 2017  The geometry of rotary kiln of sponge iron process is developed using GAMBIT 2.4.6. Dimensions of kiln are 80 m length and 4 m internal diameter. The kiln is inclined to 2.5 degree to the horizontal and rotated with 4.3 rpm. Bed material consists of iron ore, coal and dolomite, enters the kiln through feed end.

Read More
Modelling and optimization of a rotary kiln direct ...

Rotary kilns (Figure 1) are used for a range of mineral processing operations. Kilns range in size from 2–6 m in diameter and can be 50–225 m long with an operating mass of up to 3000 t. Two of the most common applications are for cement production and sponge iron production. Hatch has developed a proprietary one-dimensional kiln model to

Read More
CN1818081A - Production of sponge iron - Google Patents

The invention is about the producing method of the sponge iron. The process is: (1) make the material into the double iron oxide ball; (2) put the double iron oxide ball and the reductant into the reaction tank to get the sponge iron ball mass; (3) put the mass into the thermal insulating flume to separate the reductant, to remove the C, S,O in the protection of the N2 or the H2 to produce the ...

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

Jan 01, 2011  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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Recovery and utilization of waste heat in a coal based ...

2. Coal-based sponge iron process The process of the direct reduction of haematite in a rotary kiln is schematically described in the Fig. 1. Haematite and non-coking coal are fed to the kiln at controlled rates without pre-mixing and the charge moves through the kiln depending upon the rotation speed and inclination of the kiln.

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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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SPONGE IRON – Lloyd's Metals

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 ...

Read More
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