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coal based sponge iron process

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.

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Direct Reduced Iron and its Production Processes IspatGuru

Mar 16, 2013 Major DRI production processes are either gas based or coal based. Feed material in a DRI process is either iron ore sized to 10 to 30mm or iron ore pellets produced in an iron ore pellet plant. In the gas based plant the reactor, the reduction reaction takes place is a shaft furnace.

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Energy survey of the coal based sponge iron industry

The actual process of the coal based sponge iron production is based on SL/RN process (jointly developed by the Steel Company of Canada, Lurgi Chemie, Republic Steel Company and National Lead Corporation in 1964), which works on direct reduction of ore.This process is adopted by worldwide conventional sponge iron industries.

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sponge iron process

Jul 29, 2010 We are the largest producer of sponge iron using non coking coal as a reductant and and are having the largest coal based plant in the world. We shall discuss in detail all technical aspects of coal base sponge iron making with particular reference to control of important process parameters to achieve quality sponge iron in this august gathering.

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Recovery and utilization of waste heat in a coal based

natural gas as reductant and therefore classified as coal based and gas based process respectively. Due to promising availability of coal of 264,535million tonnes the coal based sponge iron plants share the major amount of its production [2]. At present, there are 118 large and small sponge iron plants operating in India, among

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DRI,THE SPONGE IRON INDUSTRIE FULL VIDEO YouTube

Jan 17, 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 .

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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 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 a reducing gas or elemental carbon

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WELSPUN STEEL LIMITED

Sizing of the Raw materials also play vital role in sponge iron manufacturing process. The required size of Iron ore, MPS (Mean particle size),its physical properties like T.I., A.I. & chemical properties like Fe (T), LOI, gangue content In Sponge Iron Process,two types of coal are being used such as feed coal and injection coal.

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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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WELSPUN STEEL LIMITED

Sizing of the Raw materials also play vital role in sponge iron manufacturing process. The required size of Iron ore, MPS (Mean particle size),its physical properties like T.I., A.I. & chemical properties like Fe (T), LOI, gangue content In Sponge Iron Process,two types of coal are being used such as feed coal and injection coal.

get price

Coal Base DRI Operation

Oct 22, 2017 Sponge iron produced either by coal or gas based route posses poor thermal conductivity as a result, heat generated by exothermic re-oxidation reaction within the pile cannot be dissipated away and lead to temperature build-up in DRI, and thus, leads to accelerates the corrosion. RE-OXIDATION REACTION

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CASE STUDY ON THRESHOLD PROBLEM Sponge Iron

Sponge Iron Production Process Process description This is the case study of typical coal based sponge iron plant of 500 tonne per day capacity. The process flow diagram (PFD) of the sponge iron process is shown in Fig. 1. Different streams in the PFD are

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Sponge Iron Gagan Group

Sponge iron will be manufactured through the coal-based route in which crushed iron ore is converted into DRI. A long, slightly inclined, slowly rotating kiln is employed to carry out the reduction. The process would be designed to carry out reduction using solid reductant like non-coking coal.

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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 a reducing gas or elemental carbon

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What is sponge iron? Quora

Dec 13, 2016 India is the world's largest producer of sponge iron, most of which is produced primarily through the coal based method of production. Growth in the sponge iron production can be attributed largely to the popularity of secondary steelmaking route,...

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Development of energy conservations scenarios for sponge

It decreases coal consumption as coal is the only source of energy in this plant. For energy integration in sponge iron process pinch technology is applied on the actual data of plant. Based on this data, seven energy conservation cases are identified. Among these, two are selected for detailed analysis based on utility requirement.

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Sponge Iron Plants Steel Manufacturing Companies in

The company has the world's largest coal-based sponge iron manufacturing facility at Raigarh, Chhattisgarh and stands out as the market leader in coal-based sponge iron industry within India. The plant uses direct reduced iron (DRI) process method of production and utilises ten indigenously developed rotary kilns (6 kilns of 300 tonnes per

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(PDF) i) Direct Reduced Iron: Production ResearchGate

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

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Sponge Iron Manufacturer India

Sponge iron produced using the non coking coal is called coal based sponge iron / DRI. For producing the sponge iron through this process requires high grade of iron ore and non coking coal. Gas Based DRI / HBI. In this process route, iron oxides are converted to the DRI / HBI by using natural gas in a vertical shaft furnace.

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Direct Reduced Iron Industrial Efficiency Technology

Direct Reduced Iron (DRI), also known as Sponge Iron, offers an alternative steel production route to BF-BOF and Scrap-EAF routes. In DRI, iron ore is reduced in its solid state unlike BF process where a liquid metal is formed during reduction. DRI can then be transformed to steel in electric arc furnaces. DRI production is common in Middle East, South America, India and Mexico.

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ENERGY INTEGRATION IN SPONGE IRON PLANT USING

Sponge iron is produced primarily both by using non coking coal and natural gas as reductant and therefore classified as coal based and natural gas process respectively. Presently, there are 118 large and small sponge iron plants in India- 115 of them are coal based while only 3 are natural gas based. The advantages of sponge iron are:

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Energy integration of sponge iron production process

The process flow sheet of a typical coal-based sponge iron plant with material and energy balanced operating data is shown in the figure. 1. The overall production capacity of the plant is 100tpd. In this process screened iron ore (6.5tph), coal (3.529tph) and dolomite (0.2tph) are charged into the rotary kiln. About 40% of total 5.958 tph coal

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Brief Process Of Coal Based Sponge Iron Rotary Kiln

Recovery and utilization of waste heat in a coal based sponge iron process . gas from ESP outlet to rotary kiln an insulated duct, . Get Price And Support Online; brief process of coal based sponge iron rotary kiln. Simulation of Rotary Kiln Used in Sponge Iron . In a coal based plant the reactor for the reduction reaction is a inclined

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Direct reduced iron final.ppt SlideShare

Jul 15, 2015 Direct reduced iron final.ppt Number of Coal Based Sponge Iron Plant State Number of Plant Small Scale Medium Scale Large Scale Odisha 108 26 64 18 Chhattisgarh 68 29 23 16 West Bengal 57 16 39 02 Karnataka 59 24 14 01 Jharkhand 37 13 23 01 Other States 21 05 12 04 Total 330 113 175 42 Scale Production (MTPA) Small ≤ 0.033 Medium 0.033

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(PDF) Energy survey of the coal based sponge iron industry

PDF A survey is made on a typical coal based Indian sponge iron plant of capacity 500 t/d in order to identify the largest energy losses and find ways to increase the efficiency. The required

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Coal Base DRI Operation

Oct 22, 2017 Sponge iron produced either by coal or gas based route posses poor thermal conductivity as a result, heat generated by exothermic re-oxidation reaction within the pile cannot be dissipated away and lead to temperature build-up in DRI, and thus, leads to accelerates the corrosion. RE-OXIDATION REACTION

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What is the process for producing sponge iron in coal

What is the process for producing sponge iron in coal based rotary kiln process quantitatively? midrex technology for gas based DRI for coal based.

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Process Description and flow diagram of Coal Based DRI Plant

Aug 07, 2016 Most of the plants in India use DRI process—a solid state direct reduction process by which iron ore is reduced to sponge without phase change. Raw material mix-iron ore, dolomite and coal are fed to one end of rotary Kiln as well as some fine coal also fed from discharge end and product sponge iron along with char is taken out from the other

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Energy Audit Methodology of Sponge Iron Manufacturing

Most of the plants in India use DRI process—a solid state direct reduction process by which iron ore is reduced to sponge without phase change (Figure 1). 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

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What is sponge iron? Quora

Dec 13, 2016 India is the world's largest producer of sponge iron, most of which is produced primarily through the coal based method of production. Growth in the sponge iron production can be attributed largely to the popularity of secondary steelmaking route,...

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Coke (fuel) Wikipedia

Coke is a grey, hard, and porous fuel with a high carbon content and few impurities, made by heating coal or oil in the absence of air — a destructive distillation process. It is an important industrial product, used mainly in iron ore smelting, but also as a fuel in stoves and forges when air pollution is a concern.. The unqualified term "coke" usually refers to the product derived from low

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Analyses of Different Modifications Proposed for the

Abstract. In the present work, an effort is made for best utilization of waste heat to reduce energy requirements in sponge iron plants. For this purpose, based on the principles of process integration, three design modifications, scheme-1, scheme-2, and scheme-3, are proposed and applied on actual data of two sponge iron plants being operated in India.

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ENERGY INTEGRATION IN SPONGE IRON PLANT USING

Sponge iron is produced primarily both by using non coking coal and natural gas as reductant and therefore classified as coal based and natural gas process respectively. Presently, there are 118 large and small sponge iron plants in India- 115 of them are coal based while only 3 are natural gas based. The advantages of sponge iron are:

get price

coal based rotary kiln sl rn process newpowerbeveren.be

Sponge Iron Manufacturing Process In Rotary Kiln The SL/RN Process is the most widely used coal based reduction Process Flow Of Sponge Iron Making Get Price Modeling of Rotary Kiln for Sponge Iron Processing Using Schematic of optimised Rotary kiln sponge iron making process. 21.

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Iron and Steel Making Machines Induction Melting Furnace

Iron and Steel Making Machines Pioneers in the industry, we offer induction melting furnace, rotary kiln coal based dri plant, tunnel kiln coal based dri plant, modular billet caster, electric arc furnace and vibro feeder from India.

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sponge iron process: July 2010

Jul 29, 2010 We are the largest producer of sponge iron using non coking coal as a reductant and and are having the largest coal based plant in the world. We shall discuss in detail all technical aspects of coal base sponge iron making with particular reference to control of important process parameters to achieve quality sponge iron in this august gathering.

get price