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process making sponge iron rotary kiln

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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Sponge iron making full process_Coal base DRI YouTube

Dec 24, 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

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SPONGE IRON PLANT

The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and Non-Coking coal. Limestone, in small quantities, is also required to scavenge the sulphur. IRON ORE The quality requirement of Sized ore for sponge iron

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sponge iron production in rotary kiln Chauffage Nanni

The rotary kiln process is a well-established process for production of sponge iron In this process a refractory lined rotary kiln is used for reduction of iron ore in solid state The size depends on the production capacity of kiln The kiln is mounted with a slope of ,

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(PDF) Operation of Coal-Based Sponge Iron Rotary Kiln to

Also, the process conditions in a sponge iron rotary kiln are dynamic in nature. Hence, the quality keeps fluctuating and is not a constant value. A mathematical mass

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Computational fluid dynamics analysis of sponge iron

Mar 01, 2017· Simulation of rotary kiln for sponge iron process is based on combustion of coal particles and reduction of iron ore. The heat transfer inside the kiln is done through radiation. The model equations used for computation of desired parameters, such as temperature profile and % metallization, are tabulated in Table 3 .

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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

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sponge iron process

Aug 03, 2011· COAL INJECTION IN ROTARY KILN K.Ramu, C.Ramesh, A.Rajasekaran 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.

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sponge iron process

Jul 29, 2010· In general sized iron ore of 5-18mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 15-20%.The mean particle size of iron ore shall be restricted to 11mm in order to achieve uniform Fe metallic of all grain size fraction of the product.

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Sponge iron making process SlideShare

Nov 09, 2014· Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 2. IRON ORE • Iron = 65-67 % • SiO2 + Al2O3 = 2-3 % • CaO + MgO = 0,5-1 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 5-18 mm • Shatter Index = +95 % • Tumbler index = +88 % • Reducibility Index = +94 % • Thermal Degradation Index = 5 % Physical Composition

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New Sponge Iron Rotary Kiln Design In Sponge Iron

Sep 10, 2020· Sponge Iron Manufacturing Process of New Design Sponge Iron Rotary Kiln Energy Comprehensive Utilization System. The iron concentrate, dolomite, and coal from the stockyard enter into three groups of metering pneumatic conveying devices of the feeding system for metering. The measured iron concentrate, dolomite, and 50% of coal all enter the

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SPONGE IRON PLANT

The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and Non-Coking coal. Limestone, in small quantities, is also required to scavenge the sulphur. IRON ORE The quality requirement of Sized ore for sponge iron

More

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

More

sponge iron production in rotary kiln Chauffage Nanni

The rotary kiln process is a well-established process for production of sponge iron In this process a refractory lined rotary kiln is used for reduction of iron ore in solid state The size depends on the production capacity of kiln The kiln is mounted with a slope of ,

More

Accretion Control in Sponge Iron Production Kiln using

This study focuses on sponge iron kiln based process. The chemical process involved in making sponge iron removes oxygen from iron ore by using a reducing agent in the form of non-coking coal [Patra et al, (2005)]. The reduction process is carried out in an inclined horizontal rotary kiln, which rotates at a programmed speed.

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Components Required For Rotary Kiln For Sponge Iron Plant

4. The rotary kiln is 70 meters in length and 4.4 meter in diameter. This kiln Sponge Iron Production From Ore. However, Rotary kiln process suffers from serious limitations like low productivity and pollution. In this respect fixed bed Tunnel kiln furnace are evolving as an alternative to Rotary kiln process. Iron ore fines and the low

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Rotary Kiln Furnace In Sponge Iron Plant Solution For Ore

Sponge Iron Composition Manufacturing Process Sponge iron making is a process in which iron ore lumps typically 5mm18mm size are tumbled with a 'select' grade of ironcoking 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

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Sponge iron making process SlideShare

Nov 09, 2014· Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 2. IRON ORE • Iron = 65-67 % • SiO2 + Al2O3 = 2-3 % • CaO + MgO = 0,5-1 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 5-18 mm • Shatter Index = +95 % • Tumbler index = +88 % • Reducibility Index = +94 % • Thermal Degradation Index = 5 % Physical Composition

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SPONGE IRON PRODUCTION FROM ORE -COAL

However, Rotary kiln process suffers from serious limitations like low productivity and pollution. In this respect fixed bed Tunnel kiln furnace are evolving as an alternative to Rotary kiln process. Iron ore fines and the low grade beneficiated iron ore cake are directly used for manufacturing of sponge iron in tunnel kilns.

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Rotary Kiln Process Of Making Sponge Iron

Rotary Kiln Process of Making Sponge Iron C. The coal based rotary kiln process of making sponge iron is the focus of the present write up Although many different processes and CHAPTER 2 process concepts have been emerging in this area, there were rapid births and deaths of these processes and process concepts in the middle of the twentieth century But those operating

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for rotary kiln process of making sponge iron rotary in

for rotary kiln process of making sponge iron rotary in germany. OPERATIONAL ASPECTS OF SPONGE IRONWe are a professional mining machinery manufacturer, the main equipment including: jaw crusher, cone crusher and other sandstone equipment;Ball mill, flotation machine, concentrator and other beneficiation equipment; Powder Grinding Plant

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sponge iron process

Aug 03, 2011· COAL INJECTION IN ROTARY KILN K.Ramu, C.Ramesh, A.Rajasekaran 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.

More

aerodynamics inside a sponge iron rotary kiln

Sponge Iron Composition Manufacturing Process . 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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100tpd rotary kiln in kenya Osfins

Rotary Kiln Used For Calcining Sponge Iron. Rotary kiln refers to rotary calcining kiln mainly used for calcining calcium aluminate limestone bauxite kaolin clay gypsum etc which is widely used in the fields of building materials metallurgy chemical industry environmental protection etc Coal Based Rotary Kiln for Direct Reduced Iron Sponge Iron

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