process making sponge iron rotary kiln animation
Generation of Energy Conservation Measures for Sponge …
II. COAL BASED SPONGE IRON PLANT: A CONVENTIONAL PROCESS The process flow diagram of conventional coal based sponge iron plant is shown in Fig. 1. The operating data, shown in Fig. 1, is taken from a typical Indian coal based sponge iron plant where iron ore, feed coal and dolomite are fed to the rotary kiln. A separate conveyor collects
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Mathematical Modelling of Sponge Iron Production in a …
VOL. 5 NO. 1 OCTOBER, 2010 STEEL TECH 11 from an industrial coal-based sponge iron rotary kiln process. We have developed a fairly comprehensive mathematical model for the direct reduction of iron ore
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Accretion control in sponge iron production kiln using fuzzy logic
Sponge iron production process requires accurate monitoring and control of the process parameters. The performance of rotary kiln sponge iron based processes is normally affected by accretion build up along the kiln linings. ... "Designing of an Intelligent Fuzzy Logic System for Accretion prevention in sponge iron SL/RN rotary kiln based ...
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Direct Reduced Iron and its Production Processes – IspatGuru
Fig 2 Principle of direct reduction process. Gas based process. In the gas based reduction processes, a vertical shaft kiln is used in which iron ore is fed into the top of the kiln and finished sponge iron is drawn off from the bottom after cooling it so as to prevent its re-oxidation.
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Energy Audit Methodology of Sponge Iron Manufacturing Units …
· Therefore total heat supplied to the kiln in the process of making 1 Kg sponge iron is 3889.84 Kcal. · We have already seen that theoretical heat supplied to the kiln to produce 1 Kg of sponge iron is 2058.12 Kcal. · Therefore, Thermal efficiency of the Kiln is 2058.12/3889.84 = 52.91%. · So where the remaining 47% heat has gone?
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Energy integration of sponge iron production process
rotary kiln. About 40% of total 5.958 tph coal i.e 2.429tph of slinger coal is also injected pneumatically from the discharge end of the kiln. Compressed air (24.807 tph) is injected along the length of the rotary kiln at various places with the help of blowers which can be adjusted separately. Figure 1: Flow Sheet of Typical Sponge Iron Plant ...
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Chapter 1 Review of Sponge Iron Making Process Historical …
sponge iron production plant at Chandrapur, Maharastra. The OSIL process uses a rotary kiln of 3.5mtr diameter and 84mtr long. The output of this plant is 300 tons per day. The …
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ENERGY-EFFICIENT TECHNOLOGY OPTIONS …
3.2 Iron Ore Preheating Rotary Kiln Using Waste Heat Recovery System 20 3.3 Coal Gasification for Partial Substitution in Rotary Kiln 22 3.4 Waste Heat Recovery-based …
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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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(PDF) Environmental performance evaluation of sponge iron …
Rotary hearth furnace is also used for sponge iron making, some o f these are INMETCO, Salem Direct Reduction and Hoganas process 3 . In the gas based pro cesses, the reduction of iron oxide is ...
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The production process of sponge iron in rotary kilns from the
Sponge iron is produced using non-crushing coal through the iron ore reduction process in a rotary kiln. Regeneration takes place at a predetermined temperature and controlled …
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ENERGY-EFFICIENT TECHNOLOGY OPTIONS FOR …
3.2 Iron Ore Preheating Rotary Kiln Using Waste Heat Recovery System 20 3.3 Coal Gasification for Partial Substitution in Rotary Kiln 22 3.4 Waste Heat Recovery-based Absorption Chiller 23 3.5 Decentralized Control of Shell Air Fans 25 3.6 Mullite-based Kiln Lining 26 3.7 Switch Over to Iron Ore Pellets 27
ادامه مطلب(PDF) Operation of Coal-Based Sponge Iron Rotary Kiln …
In this communication, OI methodology is used to study the operability characteristics of direct reduction of iron ore by coal in a rotary kiln using a rigorous process model.
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Profitability analysis of power generation using waste heat of sponge
The present paper proposes two energy integration options, Option-1 and Option-2, to compare power generation and preheating scheme in sponge iron process.Option-1 accounts power generation whereas in Option-2 preheating of feed material, slinger coal and kiln air is considered. These options utilize heat of waste gas …
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Development of energy conservations scenarios for sponge iron …
Coal based sponge iron plant: a conventional process. The process flow diagram of conventional coal-based sponge iron plant is shown in Fig. 1. The operating data shown in Fig. 1 is taken from a typical Indian sponge iron plant. In the conventional process kiln feed, which consists of iron ore, feed coal, and dolomite, is fed to the …
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Mathematical Modelling of Sponge Iron Production in a Rotary Kiln
Abstract and Figures. India is the largest producer of sponge iron or direct reduced iron (DRI) in the world. The important step in the manufacture of DRI is direct reduction of iron ore by coal ...
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Rotary Kilns at Best Price in India
The cement plant rotary kiln in operation; Rotary kiln working process; Inspection of a sponge iron rotary kiln; The sponge iron industrie; Kiln repair; Animation of rotary kiln; Working of rotary kiln; Graphite lubricant bar for rotary kilns; Cylindrical rotary kiln for lime, capacity: 1 tph 10 tph; Rotary kilns, model/type: ntepl-cmd ...
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Modelling and optimization of a rotary kiln direct reduction …
The kiln model applied in this work was developed by Hatch over a number of years and has been used for several rotary kiln projects. It has its roots in a FORTRAN program that was developed by Venkateswaran (1978) to study the reduction of iron ore. The original software was used to model the operation of a 35 m pilot kiln at the Stellco company
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Schematic diagram of plant and the rotary kiln (see …
Context 1. ... sponge employs rotary kilns to produce sponge iron. Iron ore, coal and dolomite are charged from one end of rotary kiln (schematic diagram in Fig. 1) and coal for...
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PEMBUATAN SPONGE IRON DARI BIJIH BESI LAMPUNG MENGGUNAKANROTARY KILN
The process of reduction of iron ore pellets carried out at a temperature of 950-1200°C in a rotary kiln using pulverized burner modified UPT. Balai Pengolahan Mineral Lampung LIPI (UPT.
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The Deposit Formation Mechanism in Coal-Fired Rotary Kiln for Iron …
The deposit-forming problem is one of the main bottlenecks restricting the yield and production benefit of iron ore pellets produced by coal-fired rotary kilns. In order to implement measures to ensure the efficient production of pellets by coal-fired rotary kilns, the mechanism and influencing factors on the deposit formation were reviewed. …
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Advances in Rotary Kiln Sponge Iron Plant
Annotation About the Book: Now that India is virtually the only player in this field, an elaboration is needed with respect to more fundamental understanding as well as future prospects and needs, which this edition has tried to fulfill. It can now fulfill the need of a reference textbook in alternate iron making area for undergraduate and post graduate …
ادامه مطلبThe production process of sponge iron in rotary kilns from the
The production process of sponge iron in rotary kilns from the perspective of mechanics and chemistry Angelo Pardon1 . Abderrahmane Zannier1. Helene Prelipcean1 1 Mechanics and Chemistry Department, Nîmes University, France Abstract The importance of iron and steel in global development is so great that it can be said that iron is the foundation
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Mass balance around main components of the plant on per hour …
Context in source publication. ... balance around the main equipment, such as rotary kiln and ABC of a typical sponge iron plant of 500 t / day capacity, carried out on per hour basis, is shown in ...
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Mathematical Modelling of Sponge Iron Production …
industrial rotary kilns for producing DRI through the TISCO direct reduction (TDR) process (Fig. 1) 1). The critical step in this process is the reduction of iron ore by coal in the rotary...
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AN INVESTIGATION FOR GENERATION OF ENERGY …
The best design includes preheating of air as well as feed material to rotary kiln and cooling of kiln outlet using waste gas. It consumes 12.5% less coal in comparison to existing system. ... [11] reviewed the sponge iron process for the storage and transmission of remotely generated marine energy. The literature indicates that for Indian ...
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Sponge Iron (DRI) | The Hira Group
With such dimension of notion WE in our Sponge Iron Manufacturing process through 4 Kilns (1 * 350T and 3 * 500T) laid up the best DRI making process in India. It is Coal Fuel based DRI. Coal based Sponge-iron is a metallic product produced through direct reduction of iron ore in the solid state .As such it is also known as Direct Reduced Iron ...
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A study on the accretion formation in DRI kilns and possible …
of fines nearer to the charge end or because of sintering of sponge iron owing to excessive temperature and/or lower carbon/iron ratio at the discharge end of a rotary kiln. Major equipments: The details and the purpose of the various kiln components installed for attainment of a better final product i.e. DRI are as follows: Rotary kiln:
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New Sponge Iron Rotary Kiln Design In Sponge Iron …
During the sponge iron manufacturing process, hot air enters through the air tube and air nozzle of the sponge iron kiln, providing heat for the reaction. The waste gas produced by the rotary kiln first enters the dust …
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Mathematical Modelling of Sponge Iron Production in a …
This paper highlights how mathematical modelling of heat transfer and reaction kinetics in a rotary kiln processing iron ore to metallised iron can useful for scaling up …
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