crushing and screening equipment malaysia

crushing and screening equipment malaysia

OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION

2012-1-10  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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Flow of materials in rotary kilns used for sponge iron ...

Looking forward to the need of developing coal-based sponge iron technology in India, a country having no significant resources of either coking coal or natural gas, the Research and Development Division of the Tata Iron and Steel Company Limited (TISCO) set up a rotary kiln based direct reduction pilot plant in 1975. In this pilot plant, a totally indigenous technology for production of ...

Get Price

Sponge Iron - MSPSteel

In the DRI plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material like coal or lignite. The reduction is carried out in a rotary Kiln (which is inclined and rotates at a pre-determined range of speed) at a stipulated temperature ( 850 °C – 1050°C).

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Flow of materials in rotary kilns used for sponge iron ...

The formation of accretions or ’rings’ in rotary kilns used for the manufacture of directly reduced iron (sponge iron) affects the residence time of the charge, kiln hold-up, and the kiln output to a great extent. In this part of the work, the effect of ring formation was simulated at room temperature in a scaled-down model of a rotary kiln by inserting conical dams in the shape of ...

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2 D Model of Sponge Iron Rotary Kiln Developed Using

2021-8-10  II. Rotary kiln: Operation and construction details A schematic diagram of the rotary kiln of sponge iron process considered for the present work is shown in Fig. 1. The rotary kiln consists of a rotating cylindrical shell lined inside with refractory material. The kiln is around 80 m long with 4 m

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A STUDY OF RING FORMATION OF SPONGE IRON IN

2012-1-10  Ring formation and heavy build-up in an experimental rotary kiln for production of sponge iron using hematite pellets, bituminous coal and nut coke have been described. The build-up from different parts of the kiln was visually examined and its mineral composition was

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SPONGE-IRON - Shakambhari Group

In the Direct Reduced Iron (DRI) plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material such as coal. The reduction is carried out in a rotary kiln (which is inclined and rotates at a pre-determined range of speeds) at a stipulated temperature (850°C

Get Price

Flow of materials in rotary kilns used for sponge iron ...

The present work identifies the basic features of burden movement in a rotary kiln. The cold model study was conducted with iron ore as the feed material to determine the influence of length to diameter ratio (L/D) of a rotary kiln on the filling degree, hold-up, and residence time of the charge.An empirical equation correlating different operating variables has been derived on the basis of ...

Get Price

THE KRUPP SPONGE IRON PROCESS PRODUCTION AND

2012-1-5  inclined rotary kiln, where it is heated by a coun-tercurrent flow of hot gas and reduced to sponge iron. Depending on the content of volatiles, the fuel is either blown into the kiln from the dis-charge end or introduced from the feed end to-gether with the ore. The material discharged from the kiln consists of a mixture of sponge

Get Price

SPONGE IRON PLANT

2018-9-24  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

Get Price

Sponge Iron - MSPSteel

In the DRI plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material like coal or lignite. The reduction is carried out in a rotary Kiln (which is inclined and rotates at a pre-determined range of speed) at a stipulated temperature ( 850 °C – 1050°C).

Get Price

Flow of materials in rotary kilns used for sponge iron ...

The formation of accretions or ’rings’ in rotary kilns used for the manufacture of directly reduced iron (sponge iron) affects the residence time of the charge, kiln hold-up, and the kiln output to a great extent. In this part of the work, the effect of ring formation was simulated at room temperature in a scaled-down model of a rotary kiln by inserting conical dams in the shape of ...

Get Price

SPONGE-IRON - Shakambhari Group

In the Direct Reduced Iron (DRI) plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material such as coal. The reduction is carried out in a rotary kiln (which is inclined and rotates at a pre-determined range of speeds) at a stipulated temperature (850°C

Get Price

2 D Model of Sponge Iron Rotary Kiln Developed Using

2021-8-10  II. Rotary kiln: Operation and construction details A schematic diagram of the rotary kiln of sponge iron process considered for the present work is shown in Fig. 1. The rotary kiln consists of a rotating cylindrical shell lined inside with refractory material. The kiln is around 80 m long with 4 m

Get Price

Flow of materials in rotary kilns used for sponge iron ...

The present work identifies the basic features of burden movement in a rotary kiln. The cold model study was conducted with iron ore as the feed material to determine the influence of length to diameter ratio (L/D) of a rotary kiln on the filling degree, hold-up, and residence time of the charge.An empirical equation correlating different operating variables has been derived on the basis of ...

Get Price

Flow of materials in rotary kilns used for sponge iron ...

Looking forward to the need of developing coal-based sponge iron technology in India, a country having no significant resources of either coking coal or natural gas, the Research and Development Division of the Tata Iron and Steel Company Limited (TISCO) set up a rotary kiln based direct reduction pilot plant in 1975. In this pilot plant, a totally indigenous technology for production of ...

Get Price

(PDF) Modeling of Rotary Kiln for Sponge Iron Processing ...

Modeling of Rotary Kiln for Sponge Iron Processing Using CFD package (ANSYS 13.0) A Thesis Submitted for Partial Fulfillment of the Degree Award Of MASTER OF TECHNOLOGY In CHEMICAL ENGINEERING Under the supervision of. Radhebihari Upadhyay. Download PDF. Download Full PDF Package.

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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 ...

Get Price

SPONGE IRON PLANT

2018-9-24  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

Get Price

THE KRUPP SPONGE IRON PROCESS PRODUCTION AND

2012-1-5  inclined rotary kiln, where it is heated by a coun-tercurrent flow of hot gas and reduced to sponge iron. Depending on the content of volatiles, the fuel is either blown into the kiln from the dis-charge end or introduced from the feed end to-gether with the ore. The material discharged from

Get Price

Sponge Iron - MSPSteel

In the DRI plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material like coal or lignite. The reduction is carried out in a rotary Kiln (which is inclined and rotates at a pre-determined range of speed) at

Get Price

OPERATIONAL ASPECTS OF SPONGE IRON

2012-1-10  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 ...

Get Price

SPONGE-IRON - Shakambhari Group

In the Direct Reduced Iron (DRI) plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material such as coal. The reduction is carried out in a rotary kiln (which is inclined and rotates at a pre-determined range of speeds) at a stipulated temperature (850°C -1,500°C).

Get Price

2 D Model of Sponge Iron Rotary Kiln Developed Using

2021-8-10  II. Rotary kiln: Operation and construction details A schematic diagram of the rotary kiln of sponge iron process considered for the present work is shown in Fig. 1. The rotary kiln consists of a rotating cylindrical shell lined inside with refractory material. The kiln is around 80 m long with 4 m

Get Price

Flow of materials in rotary kilns used for sponge iron ...

The present work identifies the basic features of burden movement in a rotary kiln. The cold model study was conducted with iron ore as the feed material to determine the influence of length to diameter ratio (L/D) of a rotary kiln on the filling degree, hold-up, and residence time of the charge.An empirical equation correlating different operating variables has been derived on the basis of ...

Get Price

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 ...

Get Price

(PDF) Modeling of Rotary Kiln for Sponge Iron Processing ...

Modeling of Rotary Kiln for Sponge Iron Processing Using CFD package (ANSYS 13.0) A Thesis Submitted for Partial Fulfillment of the Degree Award Of MASTER OF TECHNOLOGY In CHEMICAL ENGINEERING Under the supervision of. Radhebihari Upadhyay.

Get Price

SPONGE IRON PLANT

2018-9-24  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

Get Price

THE KRUPP SPONGE IRON PROCESS PRODUCTION AND

2012-1-5  inclined rotary kiln, where it is heated by a coun-tercurrent flow of hot gas and reduced to sponge iron. Depending on the content of volatiles, the fuel is either blown into the kiln from the dis-charge end or introduced from the feed end to-gether with the ore. The material discharged from the kiln consists of a mixture of sponge

Get Price

Direct Reduced Iron Industry in India — Problems and

2012-12-18  SPONGE IRON QUALITY The rotary kiln sponge iron has lower metallisation (about 85 — 88% on the average) and low carbon content (0.1-0.2%) compared to gas based sponge iron (Metallisation of 92 — 94% and carbon content of 1.5 — 2%). The higher metallisation and higher carbon content of gas based sponge iron provide

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