sponge iron roller kiln reduction technology

New Concept of Hot Metal Production using Rotary Kiln ...

27/09/2013  The idea of this technology is to utilize the heat or energy contained in sponge iron (temperature of sponge iron > 1000 o C) at the end of rotary kiln before it is cooled by rotary cooler to ...

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comparative study of particulate matter emission reduction ...

Sponge iron industries study shows continuous improvement in technologies for better precautionary measures. This study depicts how the kiln size plays a pivotal role in emission control by reduction of particulate matter of existing sponge iron plants without any change in operational technology. The reduction proposed in this study can be achieved by the modification of existing ESP’s. The ...

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Direct Reduction Process - an overview ScienceDirect Topics

The basis of the direct reduction process is that solid sponge iron is produced by removing oxygen from the ore in a shaft furnace, rotary kiln furnace or fluidised bed. Sponge iron can be produced in the form of Direct Reduced Iron (DRI), Hot Briquetted Iron (HBI) and Cold Briquetted Iron (CBI); also Low Reduced Iron (LRI), which is pre-reduced iron ore with a reduction and metallisation ...

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SPONGE IRON PLANT

High ash leads to under utilization of the kiln volume available for reduction. It also increases the consumption of fixed carbon, since additional energy is consumed in heating the inert ash . spongeitc 5 mass to reaction temperature. An ash content of 20 percent maximum is the practicable limit for normal operation. 3) Low sulphur content:- To control the sulphur in sponge iron,

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RESEARCH DEVELOPMENT - ITC PRE-HEATING

The Iron Ore is Being Passed to The Rotary Kiln (Reduction Kiln) Through Pre-Heater. The Reduction Kiln is Mounted With A Slop of 2-5 Degree Down Words From The Feed End to The Discharge End. A Central Burner Located at The Discharge End is Used For Initial Heating of The Kiln. Sized Iron Ore is Continuously Fed in Kiln Through The Pre-Heater ...

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A Comparative Study of Particulate Matter Emission ...

Sponge Iron Kilns at Raipur Ankur Sahu1, Mallika Jain 2 1PG Student, ... any change in operational technology. The reduction proposed in this study can be achieved by the modification of existing ESP’s. The particulate matter level from various sponge iron plants situated at Siltara and Urla industrial area can be reduced significantly in Raipur district for safe and healthy environment. AIM ...

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Accretion Control in Sponge Iron Production Kiln using ...

Accretion Control in Sponge Iron Production Kiln using Fuzzy Logic Edwell.T Mharakurwa1* G. N. Nyakoe 2 B.W. Ikua 3 1. Department of Electrical Engineering, Pan African University Institute of Basic Science and Technology (PAUISTI), P. O. Box 62000-00200, City Square, Nairobi, Kenya. 2. Department of Mechatronic Engineering, Jomo Kenyatta University of Agriculture and Technology

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Direct reduced iron - Wikipedia

Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) to iron by a reducing gas or elemental carbon produced from natural gas or coal.Many ores are suitable for direct reduction. Direct reduction refers to solid-state processes which reduce iron oxides to metallic iron at temperatures below the melting ...

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sponge iron roller kiln reduction technology

Sponge Iron Roller Kiln Reduction Technology. tunnel kiln sponge iron new technology. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and

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sponge iron roller kiln reduction technology

Home / News Article / sponge iron roller kiln reduction technology 2018/07/05 Author:SKM Chat Online Zenith high gradient magnetic separators and higher gradient magnetic filters are designed to recover weakly magnetic material from non-magnetic matter and can be used for many applications including the processing of iron ores, uncommon earths and industrial minerals.

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Direct Reduction Process - an overview ScienceDirect

The basis of the direct reduction process is that solid sponge iron is produced by removing oxygen from the ore in a shaft furnace, rotary kiln furnace or fluidised bed. Sponge iron can be produced in the form of Direct Reduced Iron (DRI), Hot Briquetted Iron (HBI) and Cold Briquetted Iron (CBI); also Low Reduced Iron (LRI), which is pre-reduced iron ore with a reduction and metallisation ...

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RESEARCH DEVELOPMENT - ITC PRE-HEATING

The Iron Ore is Being Passed to The Rotary Kiln (Reduction Kiln) Through Pre-Heater. The Reduction Kiln is Mounted With A Slop of 2-5 Degree Down Words From The Feed End to The Discharge End. A Central Burner Located at The Discharge End is Used For Initial Heating of The Kiln. Sized Iron Ore is Continuously Fed in Kiln Through The Pre-Heater ...

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Direct reduced iron - Wikipedia

Direct reduced iron (DRI), also called sponge iron, is produced from the direct reduction of iron ore (in the form of lumps, pellets, or fines) to iron by a reducing gas or elemental carbon produced from natural gas or coal.Many ores are suitable for direct reduction. Direct reduction refers to solid-state processes which reduce iron oxides to metallic iron at temperatures below the melting ...

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comparative study of particulate matter emission

Sponge iron industries study shows continuous improvement in technologies for better precautionary measures. This study depicts how the kiln size plays a pivotal role in emission control by reduction of particulate matter of existing sponge iron plants without any change in operational technology. The reduction proposed in this study can be achieved by the modification of existing ESP’s. The ...

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A Comparative Study of Particulate Matter Emission ...

Sponge Iron Kilns at Raipur Ankur Sahu1, Mallika Jain 2 1PG Student, ... any change in operational technology. The reduction proposed in this study can be achieved by the modification of existing ESP’s. The particulate matter level from various sponge iron plants situated at Siltara and Urla industrial area can be reduced significantly in Raipur district for safe and healthy environment. AIM ...

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SPONGE-IRON - Shakambhari Group

SIPL is operating 4 x 100 TPD Direct Reduced Iron Rotary Kilns for production of 2000 TPA Sponge Iron at Purulia, using the proven German SL/RN technology. Sponge Iron, also known as Direct Reduced Iron is produced from Hematite Iron ore (5 to 18 mm size) by removing the oxygen by direct reduction process using non coking coal as the fuel and reducing agent in Rotary Kiln.

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Some Studies on Energy Savings in Sponge Iron Plants ...

29/08/2003  This paper presents the potential for energy savings in various capacity sponge iron plants by estimating heat transfer rates using stabilized and optimized temperature data within the rotary kiln/reactor. Air jet seal instead of mechanical seal arrangements at specific locations in the rotary kiln and cooler are proposed and this is shown to reduce the power consumption and the size of the ...

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Industrial Training Report on Direct Reduced Iron

16/07/2017  6 P a g e Introduction of DRI Plant Direct-reduced iron (DRI), also called sponge iron is produced from direct reduction of iron (in the form of lump, pellets or fines) by a reducing gases produced from natural gas or coal. This reduction takes place in the temperature range 800- 1050 degrees C when reducing gases; mainly Hydrogen and Carbon-monoxide; react with the iron oxides

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Prospects for Coal-based Direct Reduction Process

rotary kilns and increases the reduction rate and productivity. The process is also characterized by flexibility regarding various raw materials, including iron ore fines, steel mill waste and non-coking coal. This paper outlines the features and development status of Kobe Steel's coal-based reduction processes, each employing an RHF for reducing carbon composite agglomerates. Also described ...

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direct reduced iron kiln, direct reduced iron kiln ...

Iron Kiln Direct Concentrate Iron Ore Reduction Kiln Sponge Iron Rotary Kiln Direct Reduction Iron. Up to 5 years warranty. US $6000-$15000 / Set. 1 Set (Min. Order) 6 YRS Gongyi Derui Machinery Co., Ltd. 100.0%. Contact Supplier. Ad. Kiln Iron Cement Production Line Rotary Kiln Lime Feeding Hole Casting Grey Iron Cover. US $3.00-$4.00 / Kilogram. 500 Kilograms (Min. Order) 3 YRS Luoyang Yile ...

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A Comparative Study of Particulate Matter Emission ...

Sponge Iron Kilns at Raipur Ankur Sahu1, Mallika Jain 2 1PG Student, ... any change in operational technology. The reduction proposed in this study can be achieved by the modification of existing ESP’s. The particulate matter level from various sponge iron plants situated at Siltara and Urla industrial area can be reduced significantly in Raipur district for safe and healthy environment. AIM ...

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Sponge Iron (DRI) The Hira Group

After reduction of iron ore pellet the product resembles sponge because of pores left behind after removal of oxygen. As such it is called Sponge Iron. 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 ...

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Tunnel Kiln Technology - Ironmaking Technology

Main Feature Of Rapid Reduction Technology To Compare With Traditional Tunnel Kiln Technology: 1. Not chang formula and method of loading and unloading; 2. Reduction speed 2-3 times faster; 3. Lower 1/3 reducer consumption; 4. Lower 1/3 energy consumption; 5. Recycle coking coal from tailing powder. Picture Of Products: Prepressing Sponge Iron . Cold Pressed Sponge Iron . Sponge Iron ...

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comparative study of particulate matter emission

Sponge iron industries study shows continuous improvement in technologies for better precautionary measures. This study depicts how the kiln size plays a pivotal role in emission control by reduction of particulate matter of existing sponge iron plants without any change in operational technology. The reduction proposed in this study can be achieved by the modification of existing ESP’s. The ...

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Direct Reduced Iron Industrial Efficiency Technology ...

Direct Reduced Iron (DRI), also known as Sponge Iron, offers an alternative steel production route to BF-BOF and Scrap-EAF routes. In DRI, iron ore is reduced in its solid state – unlike BF process where a liquid metal is formed during reduction. DRI can then be transformed to steel in electric arc furnaces. DRI production is common in Middle East, South America, India and Mexico.

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Recovery and utilization of waste heat in a coal based ...

certain design modifications without disturbing the process technology. A typical sponge iron plant has been investigated to find out the potential areas where energy is being wasted. To recover heat from these areas two design modifications, Case-1 and Case-2, are proposed. Case-1 accounts for preheating of air using waste gas exiting from ESP. However, for Case-2 initially water is heated ...

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Direct Reduced Iron (DRI) International Iron Metallics ...

In India there are many small rotary kiln furnaces producing DRI, known locally as sponge iron, using coal as energy and reductant source. Some of the sponge iron plants are captive to steel mills, but there is a significant domestic merchant market, India producing 57% of

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Some Studies on Energy Savings in Sponge Iron Plants ...

29/08/2003  This paper presents the potential for energy savings in various capacity sponge iron plants by estimating heat transfer rates using stabilized and optimized temperature data within the rotary kiln/reactor. Air jet seal instead of mechanical seal arrangements at specific locations in the rotary kiln and cooler are proposed and this is shown to reduce the power consumption and the size of the ...

Get PriceEmail contact

Prospects for Coal-based Direct Reduction Process

rotary kilns and increases the reduction rate and productivity. The process is also characterized by flexibility regarding various raw materials, including iron ore fines, steel mill waste and non-coking coal. This paper outlines the features and development status of Kobe Steel's coal-based reduction processes, each employing an RHF for reducing carbon composite agglomerates. Also described ...

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Industrial Training Report on Direct Reduced Iron

16/07/2017  6 P a g e Introduction of DRI Plant Direct-reduced iron (DRI), also called sponge iron is produced from direct reduction of iron (in the form of lump, pellets or fines) by a reducing gases produced from natural gas or coal. This reduction takes place in the temperature range 800- 1050 degrees C when reducing gases; mainly Hydrogen and Carbon-monoxide; react with the iron oxides

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