Top notch Iron mill scale world trade statistics 2021 ...

The manufacture of sponge iron using the tunnel kiln process was first developed in Sweden in 1911 under the name Hoganas process. After many improvements over the years, this process is now recognized as an efficient process with good efficiency in the manufacture of sponge iron. One of the main advantages of this method is the ability to ...

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

kiln iron air rotary kiln sponge iron Prior art date 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

DRI UPDATE - Sponge Iron Manufacturer India

2. ED, SIMA requested the participants to volunteer to spare their rotary kiln for carrying out the R&D 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

(PDF) " A study on the accretion formation in DRI kilns ...

Sponge iron is the metallic form of iron produced from reduction of iron oxide below the fusion temperature of iron ore (1535oC) by utilizing hydrocarbon gases or carbonaceous fuels as coal. The reduced product having high degree of metallization exhibits a „honeycomb structure‟, due to which it is named as sponge iron.

tunnel kilnreduction iron pellets

Process Of Iron Reduction In Tunel Kin And . Iron Ore Reduction In Tunnel Kiln Direct Reduction Of Iron Ore From Tunnel Kiln Process Direct reduction process an overview sciencedirect topics dri is also known as sponge iron it is a solid state direct reduction process fig 26 coal dolomite and iron ore or pellets are fed into one end of a rotary kiln while sponge iron and char are

OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION …

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 ...

Buy Sponge Iron Production in Rotary Kiln Book Online at ...

The increase in the demand of sponge iron is also due to the fact that it is used as a substitute for coking coal which is available in scarcity in the world. This book comprehensively deals with the production of sponge iron in the rotary kiln. The book is divided into 17 chapters.

SPONGE IRON PRODUCTION FROM ORE -COAL …

Keywords: Tunnel Kiln, Iron ore-coal composite pellets, Sponge iron, Thermal efficiency, Carbon utilization efficiency, Percentage metallic iron . 1. INTRODUCTION The tunnel kilns are mostly used by the ceramic industries for heating refractory and ceramic products [1-2]. In the year 1908 use of tunnel kiln started for iron oxide reduction.

Sponge Iron Plant Manufacturers and Sponge Iron Equipment ...

During 70's, the reduction of iron ore in small way was carried out in USA in the same manner as retile was produced from illuminate and birth of DRI / Sponge Iron was brought into existence. The coal base DRI rotary kiln process for production of DRI / Sponge Iron has its many parameters to increase the quality as well as productivity which ...

China Sponge Iron Plant EPC & Sponge Iron Production Line ...

Rotary Kiln Process of Making Sponge Iron US $1,000,000 / Set 180-12000 Tpd High Output Lime Rotary Kiln for Lime Production Line

(PDF) Production of Sponge Iron through Tunnel Kiln Process

The amount of sponge iron in the charge mix varies from 0-90% depending on its availability and economics of production. Majority of the steel produced through induction furnace route is plain ...

Sponge Iron Kiln Design - bbeautydsign.blogspot.com

Cement kiln is used for making cement clinker and there are dry and wet methods to make cement clinker. Sponge iron kiln design. Production of sponge iron. Rotary kiln design and project case duration. Surrounding the iron ore particle is swept away faster.

Coal based Direct Reduction Rotary Kiln Process – IspatGuru

Boudouard reaction, dolomite, DRI, Iron ore, metallization, non coking coal, pellets, reduction, Rotary kiln, Sponge iron, Sulphur, Coal based Direct Reduction Rotary Kiln Process The coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic iron without the melting of the materials.

Steel industry made of sponge! | ELGi Blog

Experts believe that to sustain this growth, the Indian sponge industry should concentrate on installing and running pollution control equipment meeting the ecological norms. Air compressors play an important role in the process of making sponge iron. They are extensively used in the kiln and in the pollution control process.

Iron and Steel Making Machines - Electric Arc Furnace ...

Quality of sponge iron made by the Tunnel Kiln technology is superior as compared to that made from the rotary kilns because, while the input raw material gets just about 24hours for the reaction, the figures almost reverse in case of the Tunnel Kiln. ... These pellets are then used for making sponge iron. Rotary kilns have a drawback upon the ...

Tunnel Kiln - Paras Project Ventures

The department has also produced sponge iron from our 25TPD Tunnel Kiln at our steel making complex. Based on our findings, the quality of sponge iron made by the Tunnel Kiln technology is superior compared to that produced from the rotary kilns for various reasons: At Paras, we currently have the capacity to provide tunnel kilns up to 50, 100 ...

Extractive Metallurgy: Sponge Iron Making

After processed in rotary kiln, the product sponge iron come to the water cooled cooler where its temperature reaches to 80 to 100°C. The Product is conveyed to the product separation and storage building. Fig 4. Example of Spong Iron Specification ...

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 ...

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 ...

sponge iron process

During the process of manufacture of sponge iron, coal injection plays a very vital role in maintaining the product quality. Due to highly endothermic nature of Boudouard reaction, heat has to be continuously supplied in entire reduction zone of rotary kiln. Generally the length of reduction zone is 60-70% of total kiln length.

Sponge Iron - HIRA - Godawari Power & Ispat Limited

With such dimension of notion WE in our Sponge Iron Manufacturing process through 4 Kilns (1 * 350T and 3 * 500T) laid up the best DRI making process of India. It is Coal Fuel based DRI. Coal based Sponge-iron is a metallic product produced through direct reduction of iron ore in the solid state .As such it is also known as Direct Reduced Iron ...

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

Sponge Iron | Iron | Steelmaking

Sponge iron is the product created when iron ore is reduced to metallic iron, in the presence of coal, at temperatures below the melting point of iron. The external shape of the ore is retained with 30% reduction in weight due to oxide reduction resulting in change in …

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

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 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 ...

New Technology (Tunnel Kiln) to make Sponge Iron / DRI …

CASE Group has set up India's first DRI / Sponge Iron unit using Tunnel Kiln. The Kiln which is 194m in length, is the longest in India was successfully fir...

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) into 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 ...

Iran DRI (Sponge Iron) - Romak Trading Co.

With such dimension of the notion in our DRI (Sponge Iron) Manufacturing process through MIDREX Kiln; we have laid up the best DRI making process in Iran; Gas based DRI (sponge iron). Gas based Sponge iron is a metallic product that comes from the direct reduction of iron ore in the solid state. Iron Ore Pellets is used for reduction and after ...

Energy Audit Methodology of Sponge Iron Manufacturing ...

Raw material mix-iron ore, dolomite and coal are fed to one end of rotary Kiln and product sponge iron along with char is taken out from the other end. Apart from this, primary and secondary airs are supplied to the Kiln to initiate the combustion and reaction processes. The reaction takes place at …

Sponge Iron Kiln Spare Parts - Coal Injector For Sponge ...

Manufacturer of Sponge Iron Kiln Spare Parts - Coal Injector For Sponge Iron Kiln, Cooler Pinion For 100TPD Kiln, ESP Dust Feeder and Nozzle Plate offered by Modern Castings, Asansol, West Bengal.

SPONGE IRON FROM MAGNETITE – A NOVEL PROCESS …

Sponge Iron production usually employs the DRI Process, undertaking solid state reduction of hematite ores with equal proportions of coal. This is brought about by the use of a coal fired Rotary Kiln, with the environmental impact of the entire process putting Sponge Iron plants under 'Red Category' industries.

Sponge Iron - an overview | ScienceDirect Topics

DRI, also known as sponge iron, is the product of reducing iron oxide in the form of iron ore and steel plant wastes into metallic iron, below the melting point of iron and typically in the range of 800–1200 °C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of pellet, iron ore lumps, or fines. The reduction takes place using gaseous reductants (CO + H ...