• Dolomite Its Processing and Application in Iron and

    Jun 28, 2017· During the production of iron by blast furnace (BF) route, dolomite is added either in the process of sintering or as a direct feed in the blast furnace. Raw dolomite is normally used for this addition. Dolomite addition is made during ironmaking for

  • OPERATIONAL ASPECTS OF SPONGE IRON PRODUCTION IN

    1. Krupp Sponge Iron Process The Krupp. Sponge iron process uses a rotary kiln for the reduction of high grade lump ores or pellets (Fig. 1). The feed is introduced together with reducing and de-sulphurizing agents (lime-stone or raw dolomite) into an inclined rotary kiln, heated counter current to the flow of hot gas and reduced to form sponge iron.

  • WELSPUN STEEL LIMITED

    Sponge iron manufacture is highly sensitive to raw material characteristics. Therefore, it is essential to examine the chemical and physical characteristics of raw materials, both individually and in combination. The basic raw materials for the production of sponge iron are iron ore, non-coking coal and dolomite. Sizing of the Raw materials also play vital role in sponge iron manufacturing process.

  • Sponge iron making full process_Coal base DRI YouTube

    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

  • 作者: Tech Friend's
  • Coal based Direct Reduction Rotary Kiln Process IspatGuru

    Boudouard reaction, dolomite, DRI, Iron ore, metallization, non coking coal, pellets, reduction, Rotary kiln, Sponge iron, Sulphur, Coal based Direct Reduction Rotary Kiln Process . The coal based direct reduction rotary kiln process was developed for converting iron ore directly into metallic iron without the melting of the materials.

  • sponge iron process

    Jul 29, 2010· The sulphur content in sponge iron is controlled by adding 1-6mm of limestone/dolomite along with feed materials which picks up sulphur from the coal preventing the sulphur pick up in sponge iron. the sulphur content in sponge iron can be controlled in the range 0.012 to 0,025%

  • SPONGE IRON PLANT

    The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and Non-Coking coal. Limestone, in small quantities, is also required to scavenge the sulphur. IRON ORE The quality requirement of Sized ore for sponge iron

  • Energy Audit Methodology of Sponge Iron Manufacturing

    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

  • Limestone Used In Production Of Sponge Iron

    limestone ball mill for sponge iron plant. Limestone is used mainly in the iron, The production of iron or steel is a process, Open hearth steel-making means the pig iron, more iron ore and limestone [Chat Online] Limestone Used In Production Of Sponge Iron The process of manufacturing sponge iron or DRI is known as DR process Liquid hot metal and solid pig iron would also be .

  • Sponge Iron Prakash Industries Limited

    Iron ore, coal and dolomite in pre-measured quantities are fed into the kiln, which is rotated at a speed of about 0.5 RPM. A temperature of 1,000 to 1,050 degrees is maintained through 70% of the kiln length towards the discharge end side for required reduction.

  • Iron Sponge Process an overview ScienceDirect Topics

    James G. Speight Ph.D., D.Sc., in Natural Gas (Second Edition), 2019. 8.5.1 Iron sponge process. An example of a hydrogen sulfide scavenger process is the iron sponge process (also called the dry box process), which is the oldest and still the most widely used batch process for sweetening of natural gas and natural gas liquids (Anerousis and Whitman, 1984).

  • Welcome to SIPC Servs- Pioneer in Sponge Iron

    Sponge Iron Background:: DRI Process:: The majority of DRI units in India are coal based. In a coal based DRI unit, non-coking coal and iron ore along with limestone or dolomite in the required size range and quantity are continuously fed into the feed end of an inclined rotary kiln through a feed pipe.

  • Energy Audit Methodology of Sponge Iron Manufacturing

    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

  • Limestone Used In Production Of Sponge Iron

    limestone ball mill for sponge iron plant. Limestone is used mainly in the iron, The production of iron or steel is a process, Open hearth steel-making means the pig iron, more iron ore and limestone [Chat Online] Limestone Used In Production Of Sponge Iron The process of manufacturing sponge iron or DRI is known as DR process Liquid hot metal and solid pig iron would also be .

  • Raw Materials Tata Steel Long Products Limited

    The basic raw materials for the production of sponge iron are iron ore, non-coking coal and dolomite. Several tests are conducted in the company oratory to ascertain their suitability in a rotary kiln.A state-of-the-art modern R&D facility has been established along with a chemical oratory to conduct the monitoring process.

  • Sponge iron making process SlideShare

    Nov 09, 2014· Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 DOLOMITE • MgO = 20 % • CaO = 28 % min • SiO2= 5 % max Chemical Composition • Size = 2-6 mm Physical Composition 5. PRIMARY AIR Primary air is used to combustion the injection coal Temperature in used below 950 C 6.

  • sponge iron process: 2010

    Jul 29, 2010· The sulphur content in sponge iron is controlled by adding 1-6mm of limestone/dolomite along with feed materials which picks up sulphur from the coal preventing the sulphur pick up in sponge iron. the sulphur content in sponge iron can be controlled in the range 0.012 to 0,025%

  • Sponge Iron Production Process Arij Trading

    In this method, heat coal (as a reducing agent) is mixed with iron ore and sponge iron is produced in a horizontal furnace. Input iron ore: In the Midrex or HYL process, it is generally recommended to use high quality cooked pellets with a maximum of about 30% iron ore lumps.

  • MGM

    The basic raw materials for the production of sponge iron are iron ore, non coking coal and dolomite. Iron Ore: Iron ore is the source of iron and availe in oxide form namely hematite(Fe2O3). As only oxygen can be removed from the iron ore during the process of making sponge iron iron,ores rich in iron content of 65percent and above is

  • Project Proponent M/s BRGD Sponge and Iron Pvt. Ltd.

    5.1 SPONGE IRON PLANT There is a plan to install 4x100 TPD DRI kilns for production of 1,20,000 TPA sponge iron. Manufacturing Process The proposed plant uses the coal based process in which iron oxide in pellet/iron ore will be reduced with non coking coal in a rotary kiln to make sponge iron.

  • dolomite Formation, Structure, Properties, Uses, & Facts

    Dolomite, type of limestone, the carbonate fraction of which is dominated by the mineral dolomite, calcium magnesium carbonate. Along with calcite and aragonite, dolomite makes up approximately 2 percent of the Earth’s crust. Learn more about the structure, properties, and uses of dolomite in

  • Sponge iron rotary kiln process Anti-Corruption Helpline

    Sponge Iron Composition Manufacturing Process Lloy. Sponge iron making is a process in which iron ore lumps typically 5mm18mm size are tumbled with a selectgrade of ironcoking coal little dolomite inside an inclined rotary kiln and control busted in the presence of air for about 12 hours before the products are air cooled, magnetically separated, screened and size wise in finished product