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Coal based Direct Reduction Rotary Kiln Process – IspatGuru

The main raw materials for the production of DRI by the rotary kiln process are (i) sized graded iron ore or iron ore pellets, (ii) non-coking coal, and (iii) dolomite in small quantities to scavenge the sulphur. Iron ore of the right quality is the basic input for the coal based direct reduction process.

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why magnetite ore not used in coal based sponge iron

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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Iron Sponge Process - an overview | ScienceDirect Topics

James G. Speight Ph.D., D.Sc., in Natural Gas (Second Edition), 2019. 8.5.1 Iron sponge process. An example of a hydrogen sulfide scavenger process is the iron sponge process (also called the dry box process), which is the oldest and still the most widely used batch process for sweetening of natural gas and natural gas liquids (Anerousis and Whitman, 1984).

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::MECON

Based on SL/RN Technolgy for Sponge Iron India Limited (SIIL), Paloncha, Andhra Pradesh (only civil & structural work) 1 x 150,000: DR plant based on Orissa Sponge Iron Limited (OSIL) Technology for Lloyds Metals & Engineers Ltd., Ghugus, Maharashtra: 1 x 150,000: Based on SL/RN Technology for RamsarupLohhUdyog Limited, Kharagpur, West Bengal ...

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sponge iron gas base flow chart process image

sponge iron process. We shall discuss in detail all technical aspects of coal base sponge iron making with particular reference to control of important process parameters to achieve quality sponge iron in this august gathering. 2.0 DESCRIPTION OF PROCESS: Flow chart of SL/RN process has been shown in fig. 1.Sized Iron Ore and Non Coking Coal along with Dolomite are fed continuously to the ...

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Technology : SL/RN Process Dolochar are by-products which ...

Technology : SL/RN Process Sponge Iron Lumps and Fines are prime products which are used in steel making while Char and Dolochar are by-products which contain some useful heat value and Typical Specifications of Sponge Iron : Sl. No. Particulars Sponge Iron Lumps Sponge Iron Fines 01. Total Iron 91.5% Min. 92% Min. 02. Degree of Metallization 88% Min. 90% Min. 03. Metallic Iron 80% .

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DESIGN OF WASTE HEAT RECOVERY SYSTEM IN A SPONGE IRON .

2.1 Flow Sheet of Sl/RN Process 7 2.2 Metallic Radiation Recuperator 17 2.3 Regenerator 18 2.4 Waste Heat Boiler 18 2.5 Heat Pipe 19 2.6 Economiser 21 2.7 Plate Heat Exchanger 23 3.1 Flow Sheet of Typical Sponge Iron Plant 27 5.1 Modified Flow Sheet of SL/RN Process 36 5.2 Annual Cost- .

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Meka Prasad - deputy manager - NMDC Limited | LinkedIn

Looking after process(SL/RN) operations for production of sponge iron Looking after process(SL/RN) operations for production of sponge iron. Education. A.V.N.College,visakhapatnam intermediate.

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New Ironmaking Processes: Relevance to India

1] Production of non-liquid Iron (DRI) – Direct Reduced Iron (DRI) has emerged as an excellent substitute for scrap for electric furnaces. – That's why, DRI production has zoomed throughout the world (`~63 mt in 2010) – SL/RN, MIDREX, ITmk3 etc. 2] Alternative method for Liquid Iron (Hot Metal) – Smelting Reduction (SR) processes:

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(PDF) i) Direct Reduced Iron: Production

Fig. 3 shows a flow sheet of the SL/RN process. Sized lump iron ore (or pellets) and a relatively coarse fraction of noncoking coal are fed into the kiln from the

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OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION IN A .

2. The SL-RN Process In the course of extensive development work by both SL and RN groups, it appeared that the process variants in both the systems pre- oiCHAR ruFLE AIR !COAL 2000.F FUEL REDUCTION KILN FLUX IRON OXIDE COO LER 200•F SEPARATION----wTAILINGS PRODUCT METALLIZED IRON Fig. 2 The SL/RN Stelco Lurgi/Republic steel, National

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reduction kiln process of pig iron

process production sponge iron. Difference Between Sponge Iron and Pig Iron. Apr 30, 2011 That is; the production process of sponge iron is a liquid state process whereas it is a solid state process for pig iron. Summary Sponge Iron vs Pig Iron. Both sponge iron and pig iron are two basic forms of iron that we can obtain via processing natural ...

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sponge iron gas base flow chart process image

sponge iron process. We shall discuss in detail all technical aspects of coal base sponge iron making with particular reference to control of important process parameters to achieve quality sponge iron in this august gathering. 2.0 DESCRIPTION OF PROCESS: Flow chart of SL/RN process has been shown in fig. 1.Sized Iron Ore and Non Coking Coal along with Dolomite are fed continuously to the ...

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Bihar Sponge Iron - direct reduced iron DRI - Jharkhand India

BSIL manufacturing technology is based on Lurgi's coal-based SL/RN process (part-financed by a loan from the International Finance Corporation, IFC). The DRI plant is designed to produce 150000 tonnes of sponge iron per annum. Currently, the firm has ~500 employees. BSIL also own a .

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CDM: CDM-Home

iron production today. Out of the coal based technologies SL/RN technology of Lurgi , West Germany has been the most successful one. Little success has been achieved by other coal based technologies namely CODIR technology of Krupp Industriatechnik now Mannesmann Demag, W.G., DRC technology of Davy Mckee, USA; ACCAR technology of Allis

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sl rn technology for prdution ofsponge iron – .

sl rn technology for prdution ofsponge iron [ 4.6 - 4663 Ratings ] The Gulin product line, consisting of more than 30 machines, sets the standard for our industry. We plan to help you meet your needs with our equipment, with our distribution and product support system, and the continual introduction and updating of products.

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Direct and Smelting Reduction - Outotec

Design, engineering, delivery, and services for traditional SL/RN direct reduction plants based on a rotary kiln, with non-coking coal as the reductant and fuel. Design, engineering, delivery, and services for SL/ RN-Xtra plants, which use a combination of a pre-hardening grate and traditional SL/RN kiln for the treatment of iron ore fines.

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Rn Technology For Prdution Ofsponge Iron

Sep 01, 2015· 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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SPONGE-IRON

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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iron ore reserves togo - joniatuinen

Iron ore reserves togo . smelter iron ore machine. vale iron ore mining liberia iron ore reserves togo exporter of angolan iron ore in india sl rn technology for prdution ofsponge iron tofographi iron ore minning cast iron grinding ball manufacturing equipment iron coal meru machakos exploitation cold strength of iron. Chat With Support

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(PDF) i) Direct Reduced Iron: Production

Fig. 3 shows a flow sheet of the SL/RN process. Sized lump iron ore (or pellets) and a relatively coarse fraction of noncoking coal are fed into the kiln from the

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iron ore reserves togo - joniatuinen

Iron ore reserves togo . smelter iron ore machine. vale iron ore mining liberia iron ore reserves togo exporter of angolan iron ore in india sl rn technology for prdution ofsponge iron tofographi iron ore minning cast iron grinding ball manufacturing equipment iron coal meru machakos exploitation cold strength of iron. Chat With Support

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Energy survey of the coal based sponge iron .

01.09.2015· The actual process of the coal based sponge iron production is based on SL/RN process (jointly developed by the S teel Company of Canada, L urgi Chemie, R epublic 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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2014 china small best rotary kiln for sponge iron

Sponj Iron Rotary Kiln In Nigeria- MEIPALY Mining . Shuttle Kiln Sponge Iron Nigeria Images . Size of a tpd rotary kiln in nigeria curesiddhaclinicin 100 tpd crusherfeldspar 100 tpd rotary kiln free download as word doc doc pdf file size of a 50 tpd rotary kiln 100500ton mobile crushing 104 products ton an hour learn more rotary kiln design calculations in sponge iron plant we are now ing out ...

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REDUCING AGENTS FROM BROWN COAL FOR THE PRODUCTION .

average was taken of the sponge-iron production costs in the Krupp, SL/RN, and the Midrex pro-cesses and inserted in the above table. water content of about 15. to 18% is very suitable for the production of sponge-iron in the rotary kiln). ETA A comparison of the blast-furnace-LD-route with the direct reduction-electrio-furnace-route

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Iron Sponge Process - an overview | .

Each charge of sponge may be regenerated several times, but it gradually becomes less efficient and requires replacement. • Advantages of iron sponge process a. Complete removal of small to medium concentrations of hydrogen sulfide without removing carbon dioxide. b. Relatively small investment, for small to moderate gas volumes, compared with other processes. c. Equally effective at any ...

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sponge iron process

Subsequently UNIDO came forward in bringing SL/RN technology of sponge iron making to our country with LURGI GERMANY in1979. A demonstration sponge iron plant of 30000tpa capacity was set up with liberal assistance from UNIDO, Govt.of India and LURGI. This humble beginning has grown tremendously to 22 million tons of installed capacity today.

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whrb process sponge iron - vhgvoetbalpoule

100 TPD TO 200 TPD SPONGE IRON WITH 4 MW WHRB BHAGWATI SPONGE PRIVATE LIMITED 3 1 3 MANUFACTURING PROCESS 3.1 MANUFACTURING PROCESS 3.1.1 SPONGE IRON PLANT M/s BSPL is now operating 2 DRI kilns, each of 100 TPD capacity for production of 60,000 TPA sponge iron. The company is now planning to install (1x200 +1x350) TPD DRI Kilns for

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New Ironmaking Processes: Relevance to India

DRI Production Technologies • DR processes have overcome many of theirs conceptual & engineering 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.

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(PDF) i) Direct Reduced Iron: Production

Fig. 3 shows a flow sheet of the SL/RN process. Sized lump iron ore (or pellets) and a relatively coarse fraction of noncoking coal are fed into the kiln from the

Get Price
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