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2017-7-24OSIL Process subsequently became popular and was widely accepted and recognized as one of the leading coal based sponge iron technology in the world.. OSIL set up its Project Engineering Division at Bhubaneswar in 1992 to enable setting up of Sponge Iron plants in the country based on its patented process.
The actual process of the coal based sponge iron production is based on SLRN 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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mon coal based sponge iron plant machinery equipment,Direct Reduced Iron DRI Production Plant NIPPON STEEL SUMIKIN ENGINEERING CO LTD Basic Concept or Summary S16 A direct reduced iron DRI production plant is a shaft reduction furnace to produce DRI with large metal iron content by directly reducing iron ore or iron ore pellets with reducing gases
Recovery and utilization of waste heat in a coal based sponge iron process . gas from ESP outlet to rotary kiln an insulated duct, . Get Price And Support Online brief process of coal based sponge iron rotary kiln. Simulation of Rotary Kiln Used in Sponge Iron . In a coal based plant the reactor for the reduction reaction is a inclined ...
2018-11-16out. The role of kiln is to convert the raw material iron ore, coal and dolomite into the sponge iron 8. Detail reaction mechanism of the process is discussed below There are two reduction reactions. First reaction converts iron ore to iron oxide which further reacts with CO to produce metallic iron Fe which is called sponge iron.
Sponge iron making full processCoal base DRI - YouTube. 24122018 Direct reduced iron DRI, also called sponge iron,1 is produced from the direct reductionof iron ore in the form of lumps, pellets, or fines to iron by a reducing gas or elemental carbon ...
Sponge iron, also called direct reduced iron, is a vital constituent in steel making process. Sponge iron is made either by using coal or natural gas. It is coal based sponge iron that is still the primary method of obtaining sponge iron in India. This is because India has a shortage of natural gas while there is an abundance of coal in the ...
For producing the sponge iron through this process requires high grade of iron ore and non coking coal Gas Based DRI HBI In this process route, iron oxides are converted to the DRI HBI by using natural gas in a vertical shaft furnace For steel producers, it is a preferred metallic, energy efficient and much more eco-friendly route.
2019-11-1Sponge Iron Production in Rotary Kiln Bidyapati Sarangi Coal based Direct Reduction Rotary Kiln Process IspatGuru Sponge Iron Plant Rotary Kilns Spare Parts Support OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION IN A ROTARY KILN Computational fluid dynamics analysis of sponge iron DRI , THE SPONGE IRON INDUSTRIE FULL VIDEO YouTube Energy survey of the coal based sponge iron
2011-1-6originally developed as an alternative to gas-based DRI, making DRI from iron-ore and coal. The process, however, has a drawback the DRI produced may have a decreased iron content andor increased sulfur content, depending on the quality of the coal used. This impedes the commercial use of the process for producing DRI from iron ore.
This paper presents an approach to find the best modification in the coal-based sponge iron process with an aim to integrate energy in it. For this purpose, a few energy conservation cases are formulated by integrating unutilized energy present in possible areas of process flow sheet. When unutilized energy of the process is properly integrated, energy demand from outside sources can be reduced.
2017-7-24AT A GLANCE Orissa Sponge Iron Steel Ltd. OSIL was promoted in the year 1979. It was the fi rst 100,000 TPA commer cial scale coal based Sponge Iron Plant in our Country and one of the first few in the World. The Plant went into commercial production in 1984 with process technology from Allis Chalmers Corporation of U.S.A. using 80 coal a nd 20 oil.
2010-3-19The Gas based technology is available from Kobe Group HyCL of Mexico- Midex Purofer, Ammco, etc. The process proposed to be adopted is the rotary kiln proposes using low grade coking, reduced sponge grade iron ore.
Hot-Sale Coal Based Sponge Iron Production Line Made in China, Find details about China Sponge Iron, Sponge Iron Production from Hot-Sale Coal Based Sponge Iron Production Line Made in China - Henan Dajia Mining Machinery Co., Ltd.
2020-6-14Objective A typical coal based sponge iron plant is investigated to utilized waste heat to preheat the feed coal and air as well as increase the productivity of sponge iron by applying heat integration using simulation process. Methods In the present work, utilized waste heat to preheat the feed coal and air, heat integration process using modified pinch approach is applied and to increase ...
Natural gas is reformed to enrich with 112 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. When the gases are traveling upwards the charge moves downward by gravity.
Sizing of the Raw materials also play vital role in sponge iron manufacturing process. The required size of Iron ore, MPS Mean particle size , its physical properties like T.I., A.I. chemical properties like Fe T, LOI, gangue content In Sponge Iron Process , two types of coal are being used such as feed coal and injection coal.
Fig 2 Principle of direct reduction process. Gas based process. In the gas based reduction processes, a vertical shaft kiln is used in which iron ore is fed into the top of the kiln and finished sponge iron is drawn off from the bottom after cooling it so as to prevent its re-oxidation.
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
Sponge Iron is a substitute of scrap in steel melting. Although the reduction in the kiln is not direct, the CO gas reduces the impurities and oxides of hematite and the resultant DRI is in the solid form, this process is known as Direct Reduction Process. Coal based DRI process is mainly preferred on account of better non contaminated Iron Fe ...
2020-6-5Market share About 23 of sponge iron total production. 4 Tunnel furnace process . This process is the oldest direct reduction method. In this method, Thermal coal is mixed with iron ore as a reducing agent. Natural gas generates the required reduction temperature, and reduction is performed on Silicon Carbide SiC Crucibles in a tunnel furnace.
3 1 sponge iron direct reduced iron-it is the resulting normally for sponge iron from coal based rotary kiln process carbon content shall be 0 10-0 20 whereas get price tunnel kiln process for sponge iron making use of fines for sponge iron production in coal based rotary.