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what is kiln in dri in sponge iron plant

what is kiln in dri in 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 pre-determined ratio. The rotary kiln is slightly inclined at an angle 2.5 deg and rotated by

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  • Energy Audit Methodology of Sponge Iron

    Energy Audit Methodology of Sponge Iron

    Jul 14, 2014 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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  • 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

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  • Recovery and utilization of waste heat in a coal based

    Recovery and utilization of waste heat in a coal based

    A typical sponge iron plant has ... air to 80 C before entering the kiln reduces coal andwater consumption by 7.2% 96.3%. Conse-quently, ... the reduction process, it is often termed as direct reduced iron (DRI). It is seen that the growth of sponge iron industry in last few

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  • Process Description and flow diagram of Coal Based DRI Plant

    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 mix-iron 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

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  • status of sponge iron plant, Orissa

    status of sponge iron plant, Orissa

    3 Raw Material for sponge iron plant Coal: Non-coking coal having certain important parameters is being used for the direct reduction of iron ore . Important factors determining coal quality are: • Chemical properties such as fixed carbon, ash content, volatile matter, etc.: & • Physical properties viz, reactivity and ash fusion temperature. In Orissa scenario, all most all the sponge iron

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  • Best Practices In Energy Efficiency in Sponge Iron

    Best Practices In Energy Efficiency in Sponge Iron

    The plant is equipped with DRI Plant, Coal washery, Power plant, Steel Melting Shop, Oxygen Plant, Rolling Mill, and P.G. Plant etc. which make it fully integrated steel plant having capacity to produce 0.25 MTPA finished product. The major product of Nalwa steel and power limited are Sponge Iron

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  • Sponge iron making process - SlideShare

    Sponge iron making process - SlideShare

    Nov 09, 2014 ROTARY COOLER The product is conveyed to the product separation and storage building The product is Sponge iron and char Place that spraying a controlled amount of water directly into hot solids and by spraying additional water outside the cooler shell. 12. SCREENING + 10 mm 3

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  • Coal & Gas based DRI Plant - Rotary Kiln for Making Sponge

    Coal & Gas based DRI Plant - Rotary Kiln for Making Sponge

    We manufacture Sponge Iron Plant on turn-key basis of different functional capacities i.e. 100 TPD, 300 TPD, 500 TPD plants.The equipment support provided for the plants include Kiln/cooler tyre, Kiln/cooler support roller, Kiln/cooler support roller shaft, Kiln/cooler support roller assembly with bearing housing, Kiln/cooler girth gear, Kiln/cooler pinions, Kiln/cooler pinion shaft, Kiln

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  • Pollution in the sponge iron industry

    Pollution in the sponge iron industry

    Jul 31, 2013 DRI ProcessRaw materials, partly coal, iron ore, fluxes enter the rotary kiln Rotary kiln= 2.5% Slopeand 0.47 rpm speed Preheating zone or combustion zone where coal is heated Solid iron and unburnt char, lime is discharged The remainder coal in powdered form and hot air is charged Flue gas After Burn Chamber Cooler discharge and product

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  • Energy survey of the coal based sponge iron industry

    Energy survey of the coal based sponge iron industry

    Sep 01, 2015 In the sponge iron process concentrated and finely divided iron ore is reduced in solid phase into sponge iron at high temperatures in rotary kiln. The process is very energy demanding. In order to identify the largest losses and to find ways to increase the efficiency, an energy survey of the sponge iron plant was carried out for a number of

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  • Kiln Pinion Assembly - For 100 Tpd Dri Coal Based Sponge

    Kiln Pinion Assembly - For 100 Tpd Dri Coal Based Sponge

    Kiln Pinion assembly - for 100 TPD DRI Coal Based Sponge Iron Plant rotary kiln 50 TPD - 600 TPD. Kiln Pinion complete assembly with bearing. Kiln Pinion, Kiln Pinion shaft, Kiln Pinion plumber block or bearing blocks, Kiln Pinion end cover end plate, Kiln Pinion sleeves, Kiln Pinion labyrinth ring or oil seal, Kiln Pinion bush, Kiln Pinion bearings, ZKL / SKF / FAG / Chinese / KOYO etc. Kiln

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  • SPONGE-IRON - Shakambhari Group

    SPONGE-IRON - Shakambhari Group

    In the Direct Reduced Iron (DRI) plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material such as coal. The reduction is carried out in a rotary kiln (which is inclined and rotates at a pre-determined range of speeds) at a stipulated temperature (850 C -1,500 C)

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  • Sponge Iron - an overview | ScienceDirect Topics

    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

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  • SPONGE IRON – Lloyd's Metals

    SPONGE IRON – Lloyd's Metals

    Sponge iron making is a process in which iron ore lumps (typically 5mm-18mm size) are tumbled with a ‘select’ grade of iron-coking coal little dolomite inside an inclined rotary kiln and control combusted in the presence of air for about 12 hours before the products are air cooled, magnetically separated, screened and size wise in finished product bunkers prior to dispatch

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  • Coal based Direct Reduction Rotary Kiln Process – IspatGuru

    Coal based Direct Reduction Rotary Kiln Process – IspatGuru

    Feb 14, 2017 These plants use iron ore pellets in the rotary kiln. Raw material mix consisting of iron ore, dolomite and non-coking coal is fed at the one end of the rotary kiln and is heated by coal burners to produce DRI. The product DRI along with char (sometimes called dolo

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  • DRI UPDATE - Sponge Iron Manufacturer India

    DRI UPDATE - Sponge Iron Manufacturer India

    the DRI rotary kiln to improve utilization of Thermal Energy. 2) Technological options for recovery of heat which is being lost a)from exhaust gas (which is at 170 -180 C )

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  • Direct Reduced Iron and its Production Processes – IspatGuru

    Direct Reduced Iron and its Production Processes – IspatGuru

    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

    Get Price
  • Effluent and Emission Standards for Sponge Iron Plant

    Effluent and Emission Standards for Sponge Iron Plant

    Sep 01, 2018 The location of Sponge Iron Plant should be at least 500 m away from National Highway and State Highway. The radial distance between two Sponge Iron Plants should be 5 km for plants having capacity 1000 TPD or more. Sponge Iron Plants can be established in designated industrial areas/Estates as notified by State Government

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