SL/RN Process Industrial Efficiency Technology

2017-9-13  The so-called Stelco-Lurgi/Republic Steel-National Lead (SL/RN) process is a widely used coal-based DRI-making process which uses a rotary kiln. The process uses lump ore, pellets, beach sand or ilmenite ore and solid carbon to produce hot or cold DRI. The process operates at high temperature and atmospheric pressure.

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SL/RN process Outotec

The process principles are the basis for numerous rotary kiln plants and still represent the dominant technology for the direct reduction of lump ore or pellets using coal. Operates with the widest range of iron-bearing materials, such as pellets, lump ore, beach sand, ilmenite and also iron ore fines with SL/RN

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coal based rotary kiln sl rn process crusher machine

Coal based rotary kiln sl rn process crusher machine. 2013-7-18crusher machine for sale coal based rotary kiln sl rn process manufacturer in shanghai, china coal based rotary kiln sl rn process is manufactured from shanghai xuanshi,it is the main mineral processing solutions kinetics of iron ore r...

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coal based rotary kiln sl rn process Crusher Machine

2013-7-18  SL/RN The SL/RN coal-based process also uses a rotary kiln inclined ? More detailed Customers want, and that is our goal, we produce ore crusher( coal based rotary kiln sl rn process ), mill, crusher, mobile crushing plant, processing equipment, according to the specific needs of our design and production lines, fully the interests of

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(PDF) COMPARISON OF DIFFERENT COAL BASED

The principal burden material used for produc tion of DRI in the SL/RN process is iron . oxide, either as sintered pelle ts or lump iron ore. other coal-based rotary kiln processes. [2]

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SL/RN Downstream Consulting Pty Ltd

The process is coal based and works at high temperature and near atmospheric pressure. The iron oxide combined with coal (usually low cost non-coking coal) and fluxes is fed to the elevated end of the SL/RN rotary kiln. The kiln is divided into 2 sections, the feed end is

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Nitrogen in SL/RN Direct Reduced Iron: Origin and Effect

2019-9-18  In the steel plant considered here, direct reduced iron (DRI), produced by the coal-based SL/RN process, makes up 50% or more of the total iron charge. SL/RN DRI samples from a kiln cooler had high nitrogen contents (50-250ppm, depending on particle size), contributing to elevated nitrogen levels in liquid steel produced in the EAFs.

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Coal based Direct Reduction Rotary Kiln Process

Rotary kiln It is the heart of the coal based reduction process since the reduction reaction takes place in this reactor. The diameter and the length of the kiln depend on its capacity. The kiln is generally lined with high alumina castable refractories throughout its length with dams at feed end and discharge end.

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Energy survey of the coal based sponge iron industry

2015-9-1  The actual process of the coal based sponge iron production is based on SL/RN process (jointly developed by the Steel Company of Canada, Lurgi Chemie, Republic Steel Company and National Lead Corporation in 1964), which works on direct reduction of ore.This process is adopted by worldwide conventional sponge iron industries.

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Prospects for Coal-based Direct Reduction Process

2011-1-6  Most coal-based reduction processes including SL/RN2) employ rotary kilns. Pellets, or lump-ore, mixed with coal are/is charged into the rotary kilns2) and heated by coal burners to produce DRI. To avoid the significant formation of the kiln rings, their operating temperatures must be maintained in a range from 1,000 to 1,100℃3). As a result, the

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HYL III and SL/RN The two widely accepted gas

SL/RN and HYL are two such gas based direct reduction technologies (DR) or iron making processes. While HYL is a batch-type gas based process and uses a countercurrent shaft-furnace, the SL/RN process (Stelco–Lurgi/Republic Steel–National Lead) utilizes rotary kiln to reduce lump ore, pellets and sand iron with coal.

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Direct Reduction Process an overview ScienceDirect

However in the coal/oil-based DR process, the reducing gas is generated from hydrocarbons (primarily coal, but sometimes oil and natural gas) in the reduction zone of the furnace, which is typically a rotary kiln. Typical examples of the coal-based process include the SL/RN and ACCAR processes.

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SL/RN Downstream Consulting Pty Ltd

The process is coal based and works at high temperature and near atmospheric pressure. The iron oxide combined with coal (usually low cost non-coking coal) and fluxes is fed to the elevated end of the SL/RN rotary kiln. The kiln is divided into 2 sections, the feed end is

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coal based rotary kiln sl rn process Crusher Machine

2013-7-18  SL/RN The SL/RN coal-based process also uses a rotary kiln inclined ? More detailed Customers want, and that is our goal, we produce ore crusher( coal based rotary kiln sl rn process ), mill, crusher, mobile crushing plant, processing equipment, according to the specific needs of our design and production lines, fully the interests of

get price

crushing plant processcrusher

coal based rotary kiln sl rn process crusher machine for sale cement rotary kiln process crusher for sale coal based rotary kiln sl rn process Crusher Machine Customers want and that is our goal we produce ore crusher( coal based rotary kiln sl rn process) mill crusher mobile crushing plant processing equipment according to the

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HYL III and SL/RN The two widely accepted Direct

2020-7-18  What are HYL and SL/RN technologies key features, advantages and disadvantages of these two Direct Reduction iron making processes HYL III and SL/RN The two widely accepted Direct Reduction (DR) Processes of ironmaking Industry.Guru

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Nitrogen in SL/RN direct reduced iron: origin and

2018-5-29  The SL/RN DRI samples from a kiln cooler had high nitrogen contents (50–250 ppm, depending on particle size), contributing to elevated nitrogen levels in

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New Ironmaking Processes: Relevance to India

2020-2-2  RDCIS 4 DRI Production Technologies • DR processes have overcome many of theirs conceptualengineering problems, and hence have been commercialized throughout the world in a big way. • Two major production technologies: Coal Based Rotary Kiln process ~20% of world DRI production SL / RN Process, Jindal Process, TDR etc. • Gas Based Shaft Reduction processes

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PRESENT STATE OF THE SL / RN PROCESS AND ITS

2012-1-9  101 t OF COAL PERCENTAGE CONSbmPTION % EOUPALENT UP TO THE YEAR 2000 y. 93 Fig. 1 TYPE OF PALS AND RESERVES 3 93 OAS RESOURCES AND CONSUMPTION IN USA Fig. 2 Fig. 3 4. Description of a few SL/RN and Lurgi. rotary kiln plants. 5. Discussion on some problems. 6. The future of the SL/RN Process and its application td Indian raw Materials. 1.

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Coal Based Direct Reduced Iron_Rotary kiln DR_中国直接还原网

2010-3-19  The different coal based processes include retort / shaft (Echeverria Kinglor Meter, Wiberg), Tunnel Kiln (Hoeganes) rotary kiln ( ACCR/ OSIL,Lurgi, Krupp Renn, DRC TDR, CODIR, Sill- SL/ RN)the SL / RN process is applied world wide with capacities raining

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PRESENT STATE OF THE SL / RN PROCESS AND ITS

2012-1-9  101 t OF COAL PERCENTAGE CONSbmPTION % EOUPALENT UP TO THE YEAR 2000 y. 93 Fig. 1 TYPE OF PALS AND RESERVES 3 93 OAS RESOURCES AND CONSUMPTION IN USA Fig. 2 Fig. 3 4. Description of a few SL/RN and Lurgi. rotary kiln plants. 5. Discussion on some problems. 6. The future of the SL/RN Process and its application td Indian raw Materials. 1.

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Nitrogen in SL/RN direct reduced iron: origin and

2018-5-29  The SL/RN DRI samples from a kiln cooler had high nitrogen contents (50–250 ppm, depending on particle size), contributing to elevated nitrogen levels in

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Coal Based Direct Reduced Iron_Rotary kiln DR_中国直接还原网

2010-3-19  The different coal based processes include retort / shaft (Echeverria Kinglor Meter, Wiberg), Tunnel Kiln (Hoeganes) rotary kiln ( ACCR/ OSIL,Lurgi, Krupp Renn, DRC TDR, CODIR, Sill- SL/ RN)the SL / RN process is applied world wide with capacities raining

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crushing plant processcrusher

coal based rotary kiln sl rn process crusher machine for sale cement rotary kiln process crusher for sale coal based rotary kiln sl rn process Crusher Machine Customers want and that is our goal we produce ore crusher( coal based rotary kiln sl rn process) mill crusher mobile crushing plant processing equipment according to the

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Dryers Outotec sl rn rotary kiln direct reduction

Coal Based Rotary Kiln Sl Rn Process Crusher Machine For. Outotec SLRN direct reduction SLRN technology is a coalbased rotary kiln reduction process where we have played a leading role and built over the years 32 SLRN kilns mainly in India and More detailed SLRN Process Industrial Efficiency Technology Measures SLRN Process Development Status

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use of fines for sponge iron production in coal based

iron ore fines tunnel kiln for pellet iron Iron making is the process of Reduction of iron ore using the relevant or iron ore pellets with the help of noncoking coal in Rotary Kiln in Coal based Plants Agglomeration of Iron Ore Iron Ore Fines/blue dust cannot be charged in the The site can be best viewed in IE 40 or above and 1024

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Simulation of Rotary Kiln Used in Sponge Iron Process

2018-11-16  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 process

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Recovery and utilization of waste heat in a coal based

2012-10-4  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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回转窑海绵铁(英文)_图文_百度文库

2016-1-27  Ferrous Technologies _____ SL/RN Rotary kiln direct reduction 2011 Outotec GmbH Ludwig-Erhard-Str. 21 61440 Oberursel Germany 1/8 Ferrous Among the coal based direct reduction processes the SL/RN process is the dominant and most proven reduction process.

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Prakash Industries Limited, Bilaspur Manufacturer of

The company has setup Rotary Kilns based on SL/RN technology of Lurgi ,Germany Recognizing the potential to tap the waste gases let out by the Sponge Iron kiln, the company also installed a power Co generation plant with Waste Heat Recovery Boilers in collaboration with Lurgi ,Germany. The technology is coal based and the waste gases of the

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