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tunnel kiln for producing spong iron - BINQ Mining

Asia's longest tunnel kiln sponge iron production into trial …. Asia's longest tunnel kiln sponge iron production into trial production. … the main production of new steel-making charge – sponge iron in place of steel scrap as raw … »More detailed

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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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Sponge Iron Production in Rotary Kiln: Sarangi, Bidyapati ...

This book comprehensively deals with the production of sponge iron in the rotary kiln. The book is divided into 17 chapters. The initial chapters give a brief on the fundamental theories and basic principles of sponge iron production, commercially used DR (direct reduction) processes and physico-chemical principles of sponge iron …

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CASE STUDY ON THRESHOLD PROBLEM Sponge Iron …

Fig. 1 Process flow diagram of the sponge iron process with material and energy balanced data ROTARY KILN (RK) (900 C) (1020 C) Total air Flue gas Kiln Feed RC Sponge iron Water Hot Water DSC Dust: 1 T/hr ABC Water Air (+1mbar) Dust: 4.4 T/h EC Waste gas Water Dust: 0.6 T/h (+1mbar) (-1mbar) ESP (-5mbar) Dust 2

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sponge iron process: 2010

In general the gangue content in sponge iron varies from 4% to 8% . Carbon content: The carbon content in sponge iron produced by coal based rotay kiln processes are generally low and is in the range og 0.08% to 0.20%.The carbon content in gas based processes can be controllrd to a level of 1.5% to 2.0% based on requirement for steel making.

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Sponge Iron and Smelting Reduction (MTD 30)—Metallurgical ...

Rotary tube test for iron bearing materials for the manufacture of sponge iron/direct reduced iron(DRI ) IS 11285 (pdf) IS 11285 (txt) 2002: Various Tests on Raw Materials to be Used for Coal Based Rotary Kiln Direct Reduction: IS 11795 (pdf) 1996: Guidelines for ash softening studies on solid reductants for direct reduction: IS 11860 (pdf) 1998

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kiln simulator excel - zygomat.fr

3) is heated in a cement kiln to form lime, a process that emits CO 2 as a byproduct. The resulting lime reacts in the kiln with silica, aluminum, and iron oxides present in the raw material to produce clinker. Clinker, an intermediate product, is mixed with a small amount of gypsum and/or anhydrite to make Portland cement.

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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

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Sponge Iron - Aryan Ispat & Power Pvt Ltd

We produce Sponge Iron or Direct Reduced Iron by reducing Iron Ore (in the form of lumps/pellets) using non-coking coal in a rotary kiln. The coal acts as the fuel as well as a reducing agent & Oxygen is removed from the Ore to produce Sponge Iron. Since the reduction takes place in the solid phase only it is called Direct Reduction.

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MAA CHHINNMASTIKA CEMENT & ISPAT PVT. LTD.

Maa Chhinnmastika Cement & Ispat Pvt. Ltd. (MCCIPL) is operating an Iron & Steel Plant with Sponge Iron Plant having three (3) Nos. Coal Based Rotary Kilns each of 100 TPD Capacity, with an annual capacity of 90,000 Metric Tons. Sponge Iron is presently sold to other steel producers for making finished steel products.

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Sponge Iron Plant - Entrepreneur India

Sponge iron is used to make steel by all Indian steel producers and is a substitute for steel melting scrap. Healthy demand growth in steel sector is also pushing sponge iron demand. Apart from declining availability of steel melting scrap, sponge iron demand has also gone up considerably and is likely to continue. About 45% of the domestic ...

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Pollution in the sponge iron industry

Pollution from the sponge iron industries is the core reason why communities rise in arms against this industry. 25 26. Various CSE Reports of 2008 inform us 1. In Odisha, women from the Bonai Vana Suraksha Committee marched up to the District Collector with samples of soil, water and grain to protest against sponge iron plants. 2.

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China Capacity 50-500 Tpd Hematite Rotary Kiln Price ...

Rotary kiln can be divided into hematite rotary kiln, zinc oxide rotary kiln,sponge iron rotary kin, cement kiln, metallurgical chemical kiln, lime kiln, ceramic rotary kiln, zinc oxide rotary kiln, white ash kiln and so on. 2.Raw material and final product of hematite rotary kiln price . 3.Pictures of hematite rotary kiln …

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Utilization of Kiln Accretion as a Raw Material in Rural ...

analysis of kiln accretion samples collected from different sponge iron plants such as Abhishek Steel, Raipur, Topworth, Drug showed very high % of Fe 2O 3 which make it unsuitable to brick mortar, refractory mass, refractory powder and old brick grogue as in Table 1. Interestingly, the trace elemental analysis for Pb, As and

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Belt Conveyor And Belt Conveyor Parts - Rotary Kiln | Top ...

New Design Sponge Iron Rotary Kiln Energy Comprehensive Utilization System AGICO GROUP is devoted to be the rotary kiln manufacturer and professional enterprise of import and export trade.Our main business is rotary kiln equipment such as cement kiln, lime rotary kiln and shaft kiln.

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Iran DRI (Sponge Iron) - Romak Trading Co.

Iran DRI ( Sponge Iron) as a substitute of scrap in steel melting is produced in a Direct Reduction Process. 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. Gas based DRI process mainly prefers on account of better non-contaminated Iron (Fe ...

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Sponge Iron Production in Rotary Kiln, Sarangi, A. Sarangi ...

Sponge Iron Production in Rotary Kiln - Kindle edition by Sarangi, A. Sarangi, B.. Download it once and read it on your Kindle device, PC, phones or tablets. Use features like bookmarks, note taking and highlighting while reading Sponge Iron Production in Rotary Kiln.

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Sponge Iron - HIRA - Godawari Power & Ispat Limited

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 Reduction Process.

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Tunnel Kiln at Best Price in India

About Sponge Iron/DRI: Sponge Iron, also known as Direct Reduced Iron is the product produced out of using iron ore. The iron ore is processed through reduction process by the use of gas that emits from natural coal gas resource. CASE Group of Industries manufactures sponge iron by using tunnel kiln, following reduction

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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.

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Direct Reduction Process - an overview | ScienceDirect Topics

The sponge iron formed in the direct reduction process is then melted in an electric arc furnace. In these processes, the iron oxides in the ore are reduced to metallic iron. In the next step, the raw iron is usually dropped into a torpedo ladle car where reagent is added to purify the iron from sulfur.

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SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE …

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.

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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 ...

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To build an energy-efficient tunnel kiln,roller kiln ...

. 11, 2017. To Build An Energy-efficient Tunnel Kiln, Roller Kiln And Rotary Hearth Furnace Tunnel kiln, roller kiln and rotary hearth furnace are continuous and automatic operation thermal equipments, are widely used in ceramic tile, porcelain, clay brick, firebrick and sponge iron industries, etc. The heat source may be ...

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(PDF) i) Direct Reduced Iron: Production

This product is known as direct reduced iron (DRI) or sponge iron. Processes that produce iron by reduction of iron ore (in solid state) below the melting point are generally classified as …

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Steel industry made of sponge! | ELGi Blog

Sponge iron is produced from the direct reduction of iron ore to iron by a reducing gas or elemental carbon produced from natural gas or coal. When the iron ore is reduced, oxygen content in the ore is eliminated. This leaves void spaces in the ore that give it a porous or spongy look. Hence the sobriquet 'sponge iron'.

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What is the way to recover the waste material after the ...

Sponge iron is a type of iron produced by coal based or gas-based reduction of iron ore. ... the process conditions in a sponge iron rotary kiln are dynamic in nature. Hence, the quality keeps ...

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2 D Model of Sponge Iron Rotary Kiln Developed Using CFD

Fig. 1 Schematic of the rotary kiln of sponge iron process Table 1. Reaction Temperature and its heat of reaction [11] III. CFD Model: Boundary & Operating conditions The 2 D geometry of rotary kiln is developed using GAMBIT 2.4.6. The assumptions for the present work are: (1) 2D geometry of the kiln is considered, (2) Feed Consists mixture of ...

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To build an energy-efficient tunnel kiln,roller kiln and ...

Tunnel kiln, roller kiln and rotary hearth furnace are continuous and automatic operation thermal equipments, are widely used in ceramic tile, porcelain, clay brick, firebrick and sponge iron industries, etc. The heat source may be natural gas, LPG, coal gas and fuel oil, electric.

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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 ...

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