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Energy Audit, DRI Process, Sponge Iron, Kiln Efficiency, Sankey Diagram of Kiln, Coal Balancing 1. Background of This Study Sponge iron industries in India have mandatory energy performance target in terms of specific energy consumption (SEC). They shall have to achieve the target SEC by 31st March, 2015. The nonperforming industries are
Simulation of Rotary Kiln Used in Sponge Iron Process Using ANN IACSIT International Journal of Engineering and Technology, Vol. 6, No. 2, April 2014 DOI: / 95 AbstractIn the present study, estimation of actual output parameters is carried out for a sponge iron production process
SPONGE IRON PRODUCTION FROM ORE COAL COMPOSITE, 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 The material bed in Tunnel kiln being,
In general sized iron ore of 518mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 1520%.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.
Rotary kiln It is the heart of the coal based reduction process since the reduction reaction takes place in this reactor. The diameter and the length of the kiln depend on its capacity. The kiln is generally lined with high alumina castable refractories throughout its length with dams at feed end and discharge end.
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 predetermined ratio. The rotary kiln is slightly inclined at an angle deg and rotated by
COAL INJECTION IN ROTARY KILN,, 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.
This product is known as direct reduced iron (DRI) or sponge iron. be broadly classified into two groups: (1) coalbased DR process and (2) is restricted to the rotary kiln process only.
Process Description and flow diagram of Coal Based DRI Plant. nbsp 0183 32 Process Description and flow diagram of Coal Based DRI Plant 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 end Apart from this primary and secondary airs are supplied to the Kiln to initiate
Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2. IRON ORE Iron = 6567 % SiO2 + Al2O3 = 23 % CaO + MgO = 0,51 % Sulphur = 0,02 % max Phosphorus = 0,04 % max Chemical Composition Size = 518 mm Shatter Index = +95 % Tumbler index = +88 % Reducibility Index = +94 % Thermal Degradation Index = 5 % Physical Composition
XSM stone crushing machine projectbrief process of coal based sponge iron rotary kiln. ShangHai XSM (brief process of coal based sponge iron rotary kiln) are a professional production of stone crushing and Widely used in Europe, South America, Africa, East Asia and Asia region.
Operation of CoalBased Sponge Iron Rotary Kiln to estimation of optimum input parameters corresponds to desired values of output parameters is carried out for a sponge iron production process.
#0183;#32;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.
rotary kilns and increases the reduction rate and productivity. The process is also characterized by flexibility regarding various raw materials, including iron ore fines, steel mill waste and noncoking coal. This paper outlines the features and development status of Kobe Steel''s coalbased
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 desulphurizing agents (limestone or raw dolomite) into an inclined rotary kiln, heated counter current to the flow of hot gas and reduced to form sponge iron.
Looking forward to the need of developing coalbased 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
SPONGE IRON PRODUCTION FROM ORE COAL COMPOSITE PELLETS IN TUNNEL KILN . 1*, G. G. Roy2 1 Project amp; Engineering Consultancy, Keonjhar, Odisha, India 2 . Indian Institute of Technology, Kharagpur 721302, India. Abstract: Today India stands as the largest producer of coal based sponge iron through rotary kiln process using
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