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A study on the accretion formation in DRI kilns and

kiln due to the erratic nature of the reduction process dynamics. This paper suggests the control of accretion formation in rotary kiln by increasing the fusion temperature of the complex compound which sticks to refractory wall by adding suitable additives. Key-words: direct reduction, rotary kiln, accretion and fusion temperature

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    • A study on the accretion formation in DRI kilns and

      kiln due to the erratic nature of the reduction process dynamics. This paper suggests the control of accretion formation in rotary kiln by increasing the fusion temperature of the complex compound which sticks to refractory wall by adding suitable additives. Key-words: direct reduction, rotary kiln, accretion and fusion temperature

    • Study on Accretion Formation on DRI kiln during spong iron

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    • Accretion Control in Sponge Iron Production Kiln using

      Accretion Control in Sponge Iron Production Kiln using Fuzzy Logic Sponge iron is the product generated by direct reduction of iron ore with aid of either carbon or natural gas under controlled temperatures and pressures within a rotary kiln.

    • PDF Prediction of Accretion Growth from Dynamic Analysis

      PDF | Control of accretion growth in a coal fired rotary kiln for production of sponge iron is important to achieve a long campaign life. Temperature is measured at 11 locations with embedded ...

    • A study on the accretion formation in DRI kilns and

      Jan 11, 2016 · The performance of rotary kiln sponge iron based processes is normally affected by accretion build up along the kiln linings. Accretion build up is the accumulation of semi-molten material which form rings along kiln lining. These rings narrow the kiln diameter thereby hindering efficient material flow and effect lowering production rate and ...

    • process making sponge iron rotary kiln

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    • Accretion Control in Sponge Iron Production Kiln using

      conditions including heat transfer, fuel consumption, material aggregation which makes a rotary kiln a nonlinear system, many researches have been done so as to get the maximum output of rotary kiln process. Garikayi et al, (2013), applied FL strategy in trying to minimize accretion in sponge iron kilns. Also a neuro-fuzzy techniques

    • Pilotscale plant study on solidstate metalized reduction

      The gas pressure in the kiln terminal was controlled and fixed. In Test I, the range of gas pressure was maintained from − 0.03 MPa to − 0.01 MPa, and 0.25 tons of ore was consumed within 5 days. Although no accretion formed in the rotary kiln, the results were unsatisfactory.

    • BLUESCOPE STEEL LIMITED Ansys

      Accretion layers or rings derived mainly from the impurities occasionally form on the inner face of the kiln shell, limiting the production rate. BlueScope Steel was interested in learning about the flow patterns, temperature and concentration contours inside such rotary kilns. BLUESCOPE STEEL LIMITED Australia/New Zealand Steel Production

    • 2 DEVELOPMENT OF A DOUBLE LAYER LINING FOR DRI

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    • Operability Analysis of Direct Reduction of Iron Ore by

      DIRECT REDUCTION OF IRON ORE BY COAL IN A ROTARY KILN In the direct reduction process, iron ore is fed along with coal into a rotary kiln. The kiln is mounted at a slight inclination to the horizontal and is rotated at a slow speed (≈ 0.5 rpm).

    • Accretion control in sponge iron production kiln using

      Aug 11, 2014 · Sponge iron production process requires accurate monitoring and control of the process parameters. The performance of rotary kiln sponge iron based processes is normally affected by accretion build up along the kiln linings. Accretion build up is the accumulation of semi-molten material which form rings along kiln lining.

    • DESIGNING OF AN INTELLIGENT FUZZY LOGIC SYSTEM FOR

      predict the rate of accretion build up within the kiln and minimize it with aid of a Fuzzy ... refractory wall of the rotary kiln which gradually increases in thickness and takes shape of a

    • air calculation in dri rotary kiln

      An air cooled rotary kiln collar (58) for use in improving the delivery ... sponge iron before it is discharged from a rotary kiln into the air to .... A typical batch formula employed in commercial manufacture of flat glass is as follows:.

    • US775600A Rotary cementkiln. Google Patents

      US775600A US16651903A US1903166519A US775600A US 775600 A US775600 A US 775600A US 16651903 A US16651903 A US 16651903A US 1903166519 A US1903166519 A US 1903166519A US 775600 A US775600 A US 775600A Authority US United States Prior art keywords kiln gun rotary valve aggregates Prior art date 1903-07-22 Legal status (The legal status is an assumption and is not a legal …

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      Today, a proper Rotary Lime Kiln Operation is an integral part of all modern pulp mills. How a Rotary Lime Kiln Works Kiln Feed and Feeders. High quality lime can be produced at a uniform rate only if the kiln is fed at a constant rate with lime sludge of constant composition. In some cases the feed to the kiln consists of a pumpable sludge ...

    • sponge iron production in rotary kiln

      Study on Accretion Formation on DRI kiln during spong iron production Chandrashekhar shrivas, Himanshu shrivas Abstract---Today 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. ... Rotary Kiln Manufacturer ...

    • Direct Reduction Behaviors of Composite Binder Magnetite

      leading to reduction swelling and kiln accretion. One DRI plant utilizing the latter process with an annual output of 150 thousand DRI has been put into operation since 2007, where grate-rotary kiln process was utilized and the kiln ac-cretion was eliminated in the process of …

    • CN201155925Y Calcining rotary kiln temperature field

      The utility model discloses a temperature field detector of a calcination rotary kiln, which comprises a set of temperature measuring thermoelectric couples (1) arranged in the lining of the kiln along the axial direction of the calcination rotary kiln; all the thermoelectric couples (1) are electrically connected with a wireless communication box (2) on the outer shell of the calcination ...

    • SEPTEMBER2012/1

      l Production of DRI increases by 10 -15% in rotary kilns . l Specific Coal Consumption is reduced by 10-15% l Specific Power Consumption is Reduced by 10% . l Lumps & Fines Ratio is 90:10 as against 60:40 if Iron ore is used.. l Magnetic particles in char are reduced from 2.5% to 1% l Accretion formation in DRI rotary kiln is reduced by 50%..

    • Process Making Sponge Iron Rotary Kiln

      Rotary Kiln Process of Making Sponge Iron 2.1 HISTORICAL BACKGROUND The production of steel began in ancient times; but because of the complexity and slow. Get Price And Support Online; Study on Accretion Formation on DRI kiln during . Study on Accretion Formation on DRI kiln . Generally in any sponge iron process, reduction is conducted in a ...

    • Plant Details MGM Group

      The nonmagnetics char and dolochar are also stored in waste product bins. Plus 20 mm material in the cooler discharge is generally accretion pieces and collected separately from the chute. DSC WET SCRAPPER The waste gases 80000-85000Nm3/hour with gas velocity o15 to 20m/sec leaving rotary Kiln enter a maasivesize a Dust Settling Chamber (DSC).