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  • Welcome to SBQ Steels Ltd Welcome to SBQ Steels Ltd

    Direct-Reduced Iron (DRI) Plant. The primary function of this plant is to produce DRI from iron ore in a rotary kiln. Direct-reduced 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. The reducing gas is a mixture ...

  • US4304597A System for control of sinter formation in US4304597A System for control of sinter formation in

    A method and means for improving control of the process for directly reducing ores containing iron oxide in a rotary kiln using a solid carbonaceous reducing agent, such as coal, introduced from the ore feed and discharge ends of the kiln, as both fuel and reductant, is disclosed wherein the temperature profile of the moving bed of solids is maintained such that the temperature is moderated to ...

  • ORISSA SPONGE IRON AND STEEL LTD. ORISSA SPONGE IRON AND STEEL LTD.

    Directly reduced iron looks like sponge in texture due to pores and hence is called sponge iron. Iron Ore after due reduction inside the kiln is discharged to a rotary cooler of 3.5 mtr. Dia x 50 mtr long from DR1 and 3.8 x 50 mtr long from DR2 for cooling the DRI from 10000C.

  • New Concept of Hot Metal Production using Rotary Kiln New Concept of Hot Metal Production using Rotary Kiln

    Hot sponge iron from rotary kiln shall be smelted directly by continuously charging into smelting reduction furnace. The smelting furnace itself is equipped with stoves to preheat the hot blast air.

  • [PDF] A study on the accretion formation in DRI kilns and [PDF] A study on the accretion formation in DRI kilns and

    Direct reduction of iron ore with aid of either carbon or natural gas under controlled temperatures and pressures within a rotary kiln generates sponge iron as a product. However rotary kiln performance is adversely affected by the ring formation known as accretion. These accumulated sintered solid particles which gives formation of ring along the length of the kiln hinder material flow ...

  • Technical Articles mirdc.dost.gov.ph Technical Articles mirdc.dost.gov.ph

    NZS involves direct reduction of the pelletization. Direct reduction fol - lows the SL/RN process where mag netite sand together with coal and limestone are charged in a rotary kiln and heated up by a countercurrent gas flow targeting for at least 80% metal-lization of the iron. The hot reduced titanomagnetite, together with char,

  • (PDF) Operation of Coal Based Sponge Iron Rotary Kiln to (PDF) Operation of Coal Based Sponge Iron Rotary Kiln to

    Case studies from the iron and steel industry on model-based optimization of production of direct reduced iron in a rotary kiln and induration of wet iron ore pellets on a moving packed bed ...

  • kiln for sponge iron Alibaba kiln for sponge iron Alibaba

    Kiln Iron Sponge Dry Kiln China Professional Calcination Plant Metallurgy Rotary Kiln Iron Rotary Kiln DRI Sponge Iron Rotary Kiln Supplier. $70,000.00-$600,000.00 / Set. 1.0 Sets (Min. Order) Henan Hongke Heavy Machinery Co., Ltd. CN 12 YRS. Contact Supplier. Compare. Ad. Add to Favorites 1/6. Kiln Sponge Iron Rotary Kiln Sponge Iron Reduction ...

  • (PDF) Operability Analysis of Direct Reduction of Iron Ore (PDF) Operability Analysis of Direct Reduction of Iron Ore

    Direct reduction of low-grade iron ore pelleted with coal was investigated using a pilot-scale rotary kiln. The evolution of the iron minerals, the strength of the pellets, and the emission ...

  • SPONGE IRON PLANT SPONGE IRON PLANT

    The Rotary Kiln process is a well-established process for production of coal based sponge iron. Rotary kiln of certain dia and length is provided for reduction of Iron Ore into sponge iron using non-coking coal as reductant and Dolomite as sulphur scavenger; however the Diameter and Length are to be designed based on the Plant Capacities.

  • Modelling and optimization of a rotary kiln direct Modelling and optimization of a rotary kiln direct

    The kiln model applied in this work was developed by Hatch over a number of years and has been used for several rotary kiln projects. It has its roots in a FORTRAN program that was developed by Venkateswaran (1978) to study the reduction of iron ore. The original software was used to model the operation of a 35 m pilot kiln at the Stellco company

  • A Thesis Submitted for Partial Fulfillment of the Degree A Thesis Submitted for Partial Fulfillment of the Degree

    3.3 Schematic of optimised Rotary kiln sponge iron making process 21 4.1 Industrial view of Sponge Iron making Rotary Kiln 24 4.2 Schematic view of internal heat exchange in Rotary kiln 26 4.3 Schematic view of Lobe Blower. 27 4.4 Schematic view of Air & material flow in Rotary kiln 27 4.5 Filling of Bed Geometry 28

  • Sponge Iron an overview ScienceDirect Topics Sponge Iron an overview ScienceDirect Topics

    3.3.3.1 Direct Reduced Iron. 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.

  • Model Based Optimization of Industrial Gas Solid Reactors Model Based Optimization of Industrial Gas Solid Reactors

    reduction of iron ore by coal in a rotary kiln and indura-tion of iron ore pellets on a traveling grate are presented in Sections 4 and 5, respectively. Finally, concluding re-marks and suggestions for future research are provided in Section 6. 2. Mathematical modeling of gas-solid reactors The industrial reactors could be co-current, cross-current

  • US4238222A Waelz process of volatilizing zinc and lead US4238222A Waelz process of volatilizing zinc and lead

    In a Waelz process of volatilizing zinc and lead from iron-containing and oxide-containing material in an inclined rotary kiln, which is charged at its upper end with the material together with solid carbonaceous reducing agent having a high content of volatile combustible constituents, wherein the reduction and volatilization are effected below the softening point of the charge, metallic iron ...

  • Modelling and optimization of a rotary kiln direct Modelling and optimization of a rotary kiln direct

    The kiln model applied in this work was developed by Hatch over a number of years and has been used for several rotary kiln projects. It has its roots in a FORTRAN program that was developed by Venkateswaran (1978) to study the reduction of iron ore. The original software was used to model the operation of a 35 m pilot kiln at the Stellco company

  • [PDF] A study on the accretion formation in DRI kilns and [PDF] A study on the accretion formation in DRI kilns and

    Direct reduction of iron ore with aid of either carbon or natural gas under controlled temperatures and pressures within a rotary kiln generates sponge iron as a product. However rotary kiln performance is adversely affected by the ring formation known as accretion. These accumulated sintered solid particles which gives formation of ring along the length of the kiln hinder material flow ...

  • Computational fluid dynamics analysis of sponge iron Computational fluid dynamics analysis of sponge iron

    Mar 01, 2017 Rotary kiln is the primary equipment in sponge iron industry, which is used to reduce iron ore to metallic iron i.e. Fe. It is called sponge iron. Rotary kiln is widely used in cement and steel industries. The production capacities of these industries depend significantly on the performance of rotary kiln.

  • (PDF) i) Direct Reduced Iron Production (PDF) i) Direct Reduced Iron Production

    This product is known as direct reduced iron (DRI) or sponge iron. Processes that produce iron by reduction of iron ore (in solid state) below the melting point are generally classified as DR ...

  • Recovery and utilization of waste heat in a coal based Recovery and utilization of waste heat in a coal based

    outside the kiln reduces amount of coal consumption. To bring waste gas from ESP outlet to rotary kiln an insulated duct, which is a hollow cylinder of 43m length and 0.6m diameter, is used. To preheat kiln air using waste gas a plate type heat exchanger is designed …

  • Flow of materials in rotary kilns used for sponge iron Flow of materials in rotary kilns used for sponge iron

    Looking forward to the need of developing coal-based sponge iron technology in India, a country having no significant resources of either coking coal or natural gas, the Research and Development Division of the Tata Iron and Steel Company Limited (TISCO) set up a rotary kiln based direct reduction pilot plant in 1975. In this pilot plant, a totally indigenous technology for production of ...

  • Technical Articles mirdc.dost.gov.ph Technical Articles mirdc.dost.gov.ph

    NZS involves direct reduction of the pelletization. Direct reduction fol - lows the SL/RN process where mag netite sand together with coal and limestone are charged in a rotary kiln and heated up by a countercurrent gas flow targeting for at least 80% metal-lization of the iron. The hot reduced titanomagnetite, together with char,

  • Sponge Iron Plant Rotary Kiln China Rotary Kiln, Rotary Sponge Iron Plant Rotary Kiln China Rotary Kiln, Rotary

    sponge iron plant rotary kiln 1..Brief description of clinker rotary kiln : Our company owns the magnesium production line. As a kind of qualified material crushed by the crusher, the raw material-dolomite is calcined till it became white by rotary kiln, being cooled by the cooling machine and then mix it evenly with silicon powder (75%) and silica powder (including GaF2 fluorite=95%).

  • kiln for sponge iron Alibaba kiln for sponge iron Alibaba

    Kiln Iron Sponge Dry Kiln China Professional Calcination Plant Metallurgy Rotary Kiln Iron Rotary Kiln DRI Sponge Iron Rotary Kiln Supplier. $70,000.00-$600,000.00 / Set. 1.0 Sets (Min. Order) Henan Hongke Heavy Machinery Co., Ltd. CN 12 YRS. Contact Supplier. Compare. Ad. Add to Favorites 1/6. Kiln Sponge Iron Rotary Kiln Sponge Iron Reduction ...

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