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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
Sponge Iron Rotary Kiln. Sponge iron plant or direct reduction plant drp is designed to produce 350tons of sponge iron per day in a rotary kiln using iron ore non coking coal and dolomite as the raw materials the plant consists of the following sub divisions Read the rest Energy Survey Of The Coal Based Sponge Iron Industry
brief process of coal based sponge iron rotary kiln. Planta M#243;vil de Trituradora de Mand#237;bula. Planta M#243;vil de Trituradora de Impacto. Planta M#243;vil de Trituradora de Cono. Planta M#243;vil de Trituradora de VSI. Material : construcci#243;n de carretera e industrias de agregados.
Hence coals with ash fusion temperature higher than 1400 deg C are desirable for rotary kiln operation. Volatile matter of the coal is to be optimum for coal based rotary kiln process. Coal with very low volatile matter result in very low reactivity of char, and thus give rise to poor metallized product.
#0183;#32;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.
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
Making process iron ore to sponge iron INJECTION COAL Coal Crushing Combustion Injection to kiln Coal Injection over a large range of size 020 mm Temperature combustion below 950 C Coal injection system makes use of voal volatiles for reduction, 8. ROTARY KILN 9. ROTARY KILN 10. ROTARY
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
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.
#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 kiln process has to compete mainly. with the shaft process of making sponge iron. and in some cases with iron making blast. furnace. As compared to them the rotary kiln. has some advantages as also some limitations both with respect to the process and the. product it makes.
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 #176;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
2 Process Description: Sponge iron is produced using noncoking coal by the process of reduction of iron are in a rotary kiln The reduction is carried out in a rotary kiln of a predetermined temperature and controlled atmospheric pressure The input raw material such as iron ore, noncoking coal (with high reactivity) and the fluxing materials
volatile coals and lignite and sponge iron contain, ing per cent total iron, per cent metallic iron and a degree of metallization of per cent has been achieved. Rotary Kiln Reduction Process at NML The rotary kiln at NML (Fig. 3) consists of a steel shell of 900 mm diameter and 10700 mm in
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
Computational fluid dynamics analysis of sponge iron, 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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