• Prospects for Coalbased Direct Reduction Process

    coalbased DRI. Out of the global DRI production of 68.5 million tonnes in 2008, the production of coalbased DRI occupies 17.6 million tonnes, which equates to 25.7% of the total1). Most coalbased reduction processes including SL/RN2) employ rotary kilns. Pellets, or lumpore, mixed with coal are/is charged into the rotary kilns2) and heated

  • How is sponge iron made? Answers

    The above kiln dia and length can produce 100MT of sponge/day.Though all reaction takes place in solid state the product from the kiln transfered to a rotary drum called COOLER,where sponge iron

  • Sponge iron making full process_Coal base DRI

    Dec 24, 2018 · Direct reduced iron (DRI), also called sponge iron,[1] is produced from the direct reductionof iron ore (in the form of lumps, pellets, or fines) to iron by a reducing gas or elemental carbon

  • WELSPUN STEEL LIMITED

    During lite up there is a start up burner at the kiln discharge end which is oil fired to heat up the rotary kiln. To ignite the injected coal from outlet of the kiln. When the desired temp. is reached, Iron ore, coal & lime stone or dolomite are fed from kiln feed end and also coal is injected from from kiln

  • Energy survey of the coal based sponge iron industry

    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.

  • SPONGE IRON PRODUCTION FROM ORE COAL COMPOSITE

    Abstract: Today India stands as the largest producer of coal based sponge iron through rotary kiln process using calibrated ore and non coking coal. However, Rotary kiln process suffers from serious limitations like low productivity and pollution. In this respect fixed bed Tunnel kiln furnace are evolving as an alternative to Rotary kiln process.

  • Sponge Iron an overview ScienceDirect Topics

    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 800–1200 °C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of pellet, iron ore lumps, or fines.

  • Leading Rotary Kiln Manufacture on Rotary Kiln And Cement Kiln

    The rotary kiln is always used as a piece of professional machinery for heavy industries. As a chinese leading manufacturer, AGICO not only offers all kinds of rotary kiln and related products, but also provide the complete solution of calcination for various materials.

  • Coal Based Rotary Kiln DRI Plant Manufacturer, Supplier

    Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, 500 TPD) Solid state reduction of Iron Ore using either coal/gas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron (DRI).

  • Tunnel Kiln Coal Based DRI Plant Electrotherm India

    We are counted amongst the foremost suppliers of a broad range of Tunnel Kiln Coal Based DRI plant.The offered kiln is engineered under the guidance of our adroit professionals with utmost precision using optimum class components in tune with the set industry standards.

  • Direct Reduced Iron Industry in India — Problems and

    Direct Reduced Iron Industry in India — Problems and Prospects Coal based rotary kiln sponge iron plants have mushroomed in India mainly in the states of Madhya input for sponge iron production. The ore fines used for pellet production should be beneficiated to get

  • Direct Reduced Iron Kiln / Sponge Iron Production Kiln

    Direct Reduced Iron Kiln / Sponge Iron Production Kiln / DRI Production Kiln . Directreduced iron (DRI), also called sponge iron, is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal.

  • SPONGE IRON PRODUCTION FROM ORE COAL

    process of iron reduction in tunel kin and rotary kiln. 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 stationary it does not require high strength and

  • DRI production International Iron Metallics Association

    gasbased shaft furnace processes (Midrex® and Energiron being the main ones, but there are several others including Finmet which uses iron ore fines as feedstock) accounting for 82% of 2016 production (72.8 million tonnes) coal based rotary kiln furnaces (mainly in India) accounting for 17.5% of 2016 production.

  • (PDF) i) Direct Reduced Iron: Production

    The industrial development program of any country, by and large, is based on its natural resources. Depleting resources of coking coal, the world over, is posing a threat to the conventional

  • Coal gasifiion for DRI production – An Indian solution

    using coalfired rotary kilns or natural gasfired shaft furnaces are logical choices as production in blast furnaces is constrained by the need to import coking coal. Rotary kiln DRI capacity has been installed because it makes use of domestic iron ore and coal, but there is a limit to the growth of this technology because rotary

  • India Rotary Kiln Rotary Sponge Iron Plant Buy Kiln

    India Rotary Kiln Rotary Sponge Iron Plant, Find Complete Details about India Rotary Kiln Rotary Sponge Iron Plant,Kiln Rotary,Rotary Kiln Sponge Iron Plant,Cement Production Line from Cement Making Machinery Supplier or ManufacturerHenan Hongji Mine Machinery Co., Ltd. We are based on the actual needs of customers, to carry out tailor

  • Sell Activated carbon plant production line machinery kiln

    Carbonization, Activation, Calcination Rotary Kiln production plant Machinery. In addition to we are manufacturer of activated carbon, we provide also activated carbon production plant kiln and machinery for anywhere worldwide customer based on new designed rotary kiln

  • Super Refractories Sponge Iron Production

    For Sponge Iron production by Direct Reduction Process CUMI offers the following solutions. COAL BASED SPONGE IRON ROTARY KILN

  • SPONGE IRON UNIT SEIL

    6. The product i.e. Sponge Iron and semi burnt coal are discharged from the kiln through a rotary cooler. The cooler is 12M in length and water is sprayed directly as well as indirectly for cooling the material. The material is cooled down to 100oC and fed to magnetic separator for separating the sponge iron and nonmagnetic (char). The Sponge

  • Recovery and utilization of waste heat in a coal based

    natural gas as reductant and therefore classified as coal based and gas based process respectively. Due to promising availability of coal of 264,535million tonnes the coal based sponge iron plants share the major amount of its production [2]. At present, there are 118 large and small sponge iron plants operating in India, among

  • What is the process for producing sponge iron in coal

    What is the process for producing sponge iron in coal based rotary kiln sponge iron production is continuous process sponge iron production is continuous process Encrusting Octopus Sponge

  • Case gasifier technology to replace coal fines in rotary kiln

    CASE Group in India has launched a robust gasifier technology which can replace the use of coal fines in Rotary Kiln. The technology is first of its kind for steel industry using rotary kiln

  • Study on Accretion Formation on DRI kiln during spong

    Study on Accretion Formation on DRI kiln during spong iron production Chandrashekhar shrivas, Himanshu shrivas AbstractToday is an era of competition, and contrary to this the Iron and steel industries are also suffering from the same. One of the major challenges for sponge iron plant is the Accretion formation. Through this

  • Process Description and flow diagram of Coal Based DRI Plant

    Aug 07, 2016 · 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. Raw material mixiron ore, 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

  • Rotary Kiln Process Of Making Sponge Iron

    process of sponge iron by rotary kiln – Grinding Mill China. Posted at: January 5, 2013 . Rotary Kiln Process of Making Sponge Iron The production of steel began in ancient times but because of the complexity. Click & Chat Now

  • SPONGE IRON PLANT

    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 2.5 deg and rotated by

  • Sponge Iron Production in Rotary Kiln eBook: A. Sarangi, B

    This book deals with the basics of sponge iron production in rotary kiln, describing the operational problems and control needed to produce a quality product. The book comprehensively explains the process of selection and testing of raw materials needed to prepare sponge iron. It also reveals various commercially used DR processes, which are

  • SPONGE IRON PRODUCTION FROM ORE COAL

    Abstract: Today India stands as the largest producer of coal based sponge iron through rotary kiln process using calibrated ore and non coking coal. However, Rotary kiln process suffers from serious limitations like low productivity and pollution. In this respect fixed bed Tunnel kiln furnace are evolving as an alternative to Rotary kiln process.

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