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iron pellet reduction in sponge iron kilns

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Sponge iron making full process_Coal base DRI - YouTube

24/12/2018  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 ...

作者: Tech Friend's

A Thesis Submitted for Partial Fulfillment of the Degree ...

6.1 Schematic Drawing of discharge end of Kiln 38 6.2 2D 3D model of Sponge iron Rotary Kiln 39 6.3 Faces of lobe blower. 39 6.4 Coal throw and solid out face at discharge end of kiln. 40 6.5 Cuts made to represent air pipes. 40 6.6 Wall of air pipe. 41 6.7 Face of air pipe. 41 6.8 Overall view and internal view of generated Mesh. 42

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OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION IN A

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 ...

Reduction Efficiency of Iron Ore–Coal Composite Pellets in ...

These composite pellets were tested in the laboratory and found to reduce very quickly, compared with lump iron ore. Composite pellets were also tested in an 8 t/day rotary kiln sponge iron plant ...

calculation on reduction for direct reduced iron in tunnel ...

Keywords: Tunnel Kiln, Iron ore-coal composite pellets, Sponge iron, Thermal efficiency, ... products [1-2]. In the year 1908 use of tunnel kiln started for iron oxide reduction. This .... For composite pellets amount of external coal is calculated in. Read more. benefication of low quality iron ore and its use in dri ... - ecosid . 15 Feb 2012 ... concentrated iron ore in Direct Reduced Iron ...

iron pellet reduction in sponge iron kilns

iron pellet reduction in sponge iron kilns. Sponge Iron - HIRA - Godawari Power Ispat Limited. Iron Ore Pellet is used for reduction , Thus we have achieved about 85% recovery of waste heat from fuel gases of sponge iron kiln and utilization of same heat to .... Xindia Steels, (Sponge Iron) kilns , Iron Ore Fines into “Uniform Size Iron Ore Pellets” that can be fed in the , to faster ...

Coal based Direct Reduction Rotary Kiln Process –

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. The process has the advantage of low capital expenditure ...

WELSPUN STEEL LIMITED

Sponge iron is a metallic product produced through direct reduction of iron ore in the solid state. It is a substitute for scrap and is mainly used in making steel through the secondary route. The process of sponge iron making aims to remove the oxygen from iron ore. The quality of sponge iron is primarily ascertained by the percentage of metallization (removal of oxygen), which is the ratio ...

SPONGE IRON PRODUCTION FROM ORE -COAL COMPOSITE PELLETS

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. This

Sponge Iron - HIRA - Godawari Power Ispat Limited

Iron Ore Pellet is used for reduction. 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 ...

Iron Pellet Reduction In Sponge Iron Kilns

Iron Ore Pellets Manufacturing Process By Tunnel Kiln. A PCR as low as possible is desirable for effective reduction of iron Pellet and Iron Ore based Sponge Iron Kilns can comfortably work with Iron

REDUCTION AND SWELLING BEHAVIOUR OF FIRED IRON ORE PELLETS

The present project work on “Reduction and Swelling Behaviour of Fired Iron Ore Pellets” was undertaken with a view to promote the effective utilization of iron ore and coal fines in sponge iron making. Presently, India has become the world leader in sponge iron production and the production of steel by DR-EAF

(PDF) i) Direct Reduced Iron: Production - ResearchGate

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 DR ...

the use of tunnel kiln for iron ore reduction - MC Machinery

iron pellet reduction in sponge iron kilns - osteodons.nl. iron ore blue dust effect in rotary kiln - earljones.co.za. Sponge iron rotary kiln is the widely used sponge iron processing equipmentIn the rotary kiln, with coal, coke or other fuels,the iron ore or iron concentrate pellets realize low-temperature reduction under the melting temperature conditions,becoming porous products

Reduction Efficiency of Iron Ore–Coal Composite Pellets

In order to explore the efficacy of iron ore–coal composite pellets over ordinary green pellets, indurated pellets, briquettes as well as standard charging of material in the form of concentric layers of iron ore and coal fines, or their mixture, these pellets were tested at 1,150°C in a 7tons per day (7tpd) pilot tunnel kiln. Reduction of iron ore coal composite pellets ...

Reduction Efficiency of Iron Ore–Coal Composite Pellets

In order to explore the efficacy of iron ore–coal composite pellets over ordinary green pellets, indurated pellets, briquettes as well as standard charging of material in the form of concentric layers of iron ore and coal fines, or their mixture, these pellets were tested at 1,150°C in a 7tons per day (7tpd) pilot tunnel kiln. Reduction of iron ore coal composite pellets ...

DRI , THE SPONGE IRON INDUSTRIE FULL VIDEO - YouTube

17/01/2017  we are trying to take a look at the sponge iron industrie , how we making sponge iron by coal based .if you like please subscribe and comment ,please comment your opinion .

作者: Kovvada Srinivasarao

Direct Reduction Process - an overview ScienceDirect

DRI is also known as sponge iron, it is a solid-state direct reduction process (Fig. 2.6). Coal, dolomite and iron ore or pellets are fed into one end of a rotary kiln, while sponge iron and char are withdrawn from the other end. Primary and secondary airs are supplied to the kiln to initiate combustion and reaction processes (Choudhury, 2014 ...

iron pellet reduction in sponge iron kilns

Iron Ore Pellet is used for reduction. 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 ...

Related Information Of Iron Pellet Reduction In Sponge ...

iron pellet reduction in sponge iron kilns. sponge iron plant equipment rotary kiln for sale. iron pellet reduction in sponge iron kilns crusherasia which are needed in the reduction kiln of a sponge iron rotary kiln plant. of Making Sponge Iron. ...

iron ore rotary kiln made - jbaygolf.co.za

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. Live Chat. vertical kilns for making iron ore pellets in china. Journal of Engineering Innovation And Research Recent Iron making processes can ...

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,

high quality rotary kiln for iron ore - Mobile Crushing Plant

Iron Ore Pellet Kiln Burners FCT Combustion. A range of high-quality, compact burners, specifically designed for iron ore sintering and pelleting plants using traveling grate kilns. Iron Ore Pellet Kiln burners can also be used in a number of other applications such as hot gas generators, calciners and pre-heat chambers.

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 ...

Sponge iron rotary kiln process - Anti-Corruption Helpline

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 desulphurizing agents limestone or raw dolomite into an inclined rotary kiln, heated counter current to the flow of hot gas and reduced to form sponge iron