Dri steel making via rotary klin

The total share of the DRI in the world crude steel production is about 5%, while the blast furnace hot metal account for 60% and steel scrap for the rest. 1.1.9.2.1.1 The MIDREX Process Gas-based direct reduction processes are particularly suitable for installation in those areas where natural gas is available in abundance and at economical

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  • Dolomite – Its Processing and Application in Iron and

    Dolomite – Its Processing and Application in Iron and

    Jun 28, 2017 In the production of direct reduced iron (DRI) by the rotary kiln process, dolomite is used as a desulphurizing agent. Raw dolomite is used in the size range of 4 mm to 8 mm. The second major use of dolomite is in steelmaking. In steelmaking dolomite is used both as a fluxing material and also as a refractory material

  • Direct Reduced Iron | Industrial Efficiency Technology

    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

  • WORLD DIRECT REDUCTION STATISTICS

    WORLD DIRECT REDUCTION STATISTICS

    Rotary Kiln 17.6% 20.2% 24.0% Rotary Kiln 24% Other 0.2% PERED 2.1% World DRI production surpasses 108M tons in 2019 from production increases in India, Iran and Algeria 2019 Top 5 DRI Producing Nations COUNTRY PRODUCTION (Million Tons) India 33.74 Iran 28.52 Russia 8.03 Mexico 5.97 Saudi Arabia 5.79 Source: World Steel Association, SIMA, and

  • Iron and Steel Making Machines - Electric Arc Furnace

    Iron and Steel Making Machines - Electric Arc Furnace

    Iron and Steel Making Machines Pioneers in the industry, we offer electric arc furnace, induction melting furnace, modular billet caster, ladle refining furnaces, air pollution control system and rotary kiln coal based dri plant from India

  • OPERATIONAL ASPECTS OF SPONGE IRON

    OPERATIONAL ASPECTS OF SPONGE IRON

    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 length. The kiln is provided with spring load-ed stationary inlet and outlet segments with pro-. per air tight seals to prevent infiltration of air or gas leakage between the stationary heads and the rotary kiln

  • Direct-Reduced Iron - an overview | ScienceDirect Topics

    Direct-Reduced Iron - an overview | ScienceDirect Topics

    The total share of the DRI in the world crude steel production is about 5%, while the blast furnace hot metal account for 60% and steel scrap for the rest. 1.1.9.2.1.1 The MIDREX Process Gas-based direct reduction processes are particularly suitable for installation in those areas where natural gas is available in abundance and at economical

  • Direct Reduction Process Description

    Direct Reduction Process Description

    The cooled material is then separate into DRI, DRI fines, and non-magnetics by a series of screens and magnetic separators. The fines are briquetted to be used later with the DRI. The Making, Shaping, and Treating of Steel, 10th Edition, Association of Iron and Steel Engineers, 1985

  • STUDY ON REDUCTION OF IRON ORE CONCENTRATE IN ROTARY KILN

    STUDY ON REDUCTION OF IRON ORE CONCENTRATE IN ROTARY KILN

    A direct reduced iron (DRI) was prepared using iron concentrate pellets and a coal as a reductant through three stages, namely, the first: iron concentrate pellets were dried by slow heating at 150 C to remove water content, the second: they were heated at 1,200 C to reduce magnetite into hematite which was treated in two different conditions, namely by oxygen and without oxygen injections

  • Sponge Iron Plant(DRI)-Henan Dajia Mining Machinery Co

    Sponge Iron Plant(DRI)-Henan Dajia Mining Machinery Co

    The coal base DRI rotary kiln process for production of DRI / Sponge Iron has its many parameters to increase the quality as well as productivity which need careful operations through out the process. Number of DRI processes came up and rotary kiln process with solid coal as fuel found to be most acceptable process in the world

  • FACT SHEET Energy use in the steel industry

    FACT SHEET Energy use in the steel industry

    steel rotary kiln furnace fluidized bed shaft furnace natural gas, oil natural gas DRI recycled recycled steel steel DR coal pellets EAF EAF pellets sinter coal blast O 2 natural gas, oil or coal recycled steel oxygen BOF hot metal air OHF BF Raw material preparation Ironmaking Steelmaking Crude

  • Rotary Kiln Iron Ore In South Africa

    Rotary Kiln Iron Ore In South Africa

    Dec 02, 2019 The direct reduction rotary kiln process The direct reduction (DR) rotary kilns, a schematic of which is shown in Figure 1, are for the prereduction of the titaniferous iron ore. The overall effect of the prereduction, with hot feed fed to the electric smelting furnaces, is to reduce electrical energy consumption and to increase smelting rates

  • (PDF) 2ª DEVELOPMENT OF A DOUBLE LAYER LINING FOR

    (PDF) 2ª DEVELOPMENT OF A DOUBLE LAYER LINING FOR

    Currently 75.1 MM tons of Direct Reduced Iron (DRI) are produced worldwide throughout diverse processes, from the total DRI output 21% is produced in coal-based rotary kilns

  • Direct Reduced Iron and its Production Processes –

    Direct Reduced Iron and its Production Processes –

    Mar 16, 2013 DR process, DRI, HBI, Iron making. Metallization, reformed natural gas, residual elements, Rotary kiln, Direct Reduced Iron and its Production Processes. Direct reduced iron (DRI) is the product which is produced by the direct reduction of iron ore or other iron bearing materials in the solid state by using non-coking coal or natural gas

  • DRI UPDATE

    DRI UPDATE

    during the steel making through the induction furnace route. ... ED, SIMA requested the participants to volunteer to spare their rotary kiln for carrying out the R&D for exploring the use of Syn Gas in the rotary kiln. Mr. T Srinivasa Rao, MD, ... the DRI rotary kiln to improve utilization of Thermal Energy. 2) Technological options for

  • SPONGE IRON PLANT

    SPONGE IRON PLANT

    fed to rotary kiln through feed tube in pre-determined ratio. The rotary kiln is slightly inclined at an angle 2.5 deg and rotated by ac variable speed motor at a steeples variable speed ranging form 0.2-1.0 rpm. Due to inclination and rotary motion of the kiln, the material

  • The Value of DRI - Using the Product for Optimum

    The Value of DRI - Using the Product for Optimum

    USING DRI. The advantages of DRI include: predictable chemistry, low tramp material content, carbon and foamy slag formation, lower capital and operating costs, relatively uninterrupted continuous iron making, EAF feed adjustment via blending with lower quality

  • Nitrogen in SL/RN Direct Reduced Iron: Origin and Effect

    Nitrogen in SL/RN Direct Reduced Iron: Origin and Effect

    In the steel plant considered here, direct reduced iron (DRI), produced by the coal-based SL/RN process, makes up 50% or more of the total iron charge. SL/RN DRI samples from a kiln cooler had high nitrogen contents (50-250ppm, depending on particle size), contributing to elevated nitrogen levels in liquid steel produced in the EAFs

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