بيت /brief process of coal based sponge iron rotary kiln
The Rotary Kiln process is a wellestablished process for production of coal based DRI Lumps. The process, in general, salient features of the various rotary kiln processes available now for commercial exploitation, and the process selected are discussed in this chapter. In this process a refractory lined Rotary Kiln of 42 Mtr long is used for reduction of iron ore in solid state.
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The process of DRI or sponge Iron making can be classified into different categories as given below: (A) Rotary Klin Process Rotary Kiln method is very important for sponge iron production using noncoking coal as a reluctant.
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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 .
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Simulation of Rotary Kiln Used in Sponge Iron Process Using ANN ... Index Terms—Sponge iron process, rotary kiln, temperature profile, artificial neural network. I. INTRODUCTION ... To produce sponge iron, iron ore and coal are used as raw material. In the kiln coal is
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The contribution of coal based sponge iron to the total production in India has remained above 60 per cent since 200405. The contribution of coal based sponge iron has been on the rise.
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therefore classified as coal based and gas based process respectively. Due to promising availability of coal of 264,535 million tonnes the coal based sponge iron .
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Rotary kiln process of making sponge iron c 14 // advances in rotary kiln sponge iron plant the krupprenn process, about which we mentioned in chapter 1, was probably the last of the rotary kiln processes, which.
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brief process of coal based sponge iron rotary kiln is, Sponge Iron produced by gasbased process is normally hot, A vertical retort is used for the . [Send Message] Powder Production Technologies Powder Metallurgy,
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SL/RN Process The socalled StelcoLurgi/Republic SteelNational Lead (SL/RN) process is a widely used coalbased DRImaking process which uses a rotary kiln. The process uses lump ore, pellets, beach sand or ilmenite ore and solid carbon to produce hot or cold DRI.
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of the ancient process, they could not be carried out on a. 2 A concise schematic representation of a rotary kiln sponge iron plant. 1 Key steps major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and Non.
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In conventional coal based sponge iron plant, Fig. 1, kiln feed (Stream no. 1), which consists of iron ore, feed coal and dolomite, is fed to the rotary kiln (RK). A separate conveyor collects different size fractions of coal (Stream no. 5) for injection into the kiln with the help of pressurized air (Stream no. 4) from discharge end side.
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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.
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2D CFD based model is developed for simulation of sponge iron rotary kiln process. Effects of varying inclination angle, rotation and iron ore flow rate are studied. Based on optimum conditions, Fe content, temperature profiles are found.
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May 01, 2013· . ore lumps or iron ore pellets with the help of noncoking coal in Rotary Kiln (in Coal based Plants) ... But usually iron content of ores ranges between 50 .
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ppt for rotary kiln process of making sponge iron rotary brief process of coal based sponge iron rotary kiln brief process of coal based sponge iron rotary kiln . Get Info Recovery and utilization of waste heat in a coal,
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PROCESSES OF MAKING SPONGE IRON: A Large No Of DRI Processes Available Today – Coal Based Processes Using Rotary Kilns. Coal Based Processes Using Other Type Of Reactors Like Rotary Hearth Furnaces. Batch Type Gas Based Processes Using Reactors. Continuous Gas Based Processes In Shaft Furnaces.
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Rotary Kiln Process of Making Sponge Iron. The production of steel began in ancient times; but because of the complexity and slow speed of the ancient process, they could not be carried out on a very large scale. Sponge iron production by Rotary Kiln – VEBSAR. Sponge iron production by Rotary Kiln . Introduction. . Various rotary kiln processes for production of sponge iron are: 1.
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Brief Process Of Coal Based Sponge Iron Rotary Kiln. 2 D Model of Sponge Iron Rotary Kiln Developed . variation in mass fraction of Fe content in kiln outlet stream is observed based on . kiln which consists of iron ore, coal . rotary kiln of sponge iron process. Get Price And Support Online; A Thesis Submitted for Partial Fulfillment of the .
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INTRODUCTION: The rotary kiln process is a commonly practiced method in India for producing coal based sponge iron. The iron ore along with coal is charged into the kiln and air tubes located along the length supply the air for combustion. In the industry, there have been many recent reports of premature failures of certain air tubes in a rotary kiln.
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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. ... ROTARY KILN (RK)
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The carbon monoxide reduces the iron ore (in the chemical equation below, hematite) to molten iron, becoming carbon dioxide in the process:. 3 CO + Fe 2 O 3 â 2 Fe + 3 CO 2 .
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Lump iron ore in the size range of 520mm can be used in all coal based rotary kiln processes. In gas based processes 70% iron ore pellets and 30% lump iron ore of 1030mm are being used. In general high grade iron ore of 65% minimum Fe (total) with less decrepitating characteristics is preferred for use in rotary kiln. Reductants: Non coking coal is used as reductants in the rotary kiln process. As low ash .
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