sponge iron plant process

The sponge iron is a substitute for scrap in the electric arc furnace, which can be easily manufactured from indigenously available raw materials at very competitive price. It is the iron ore reduced in solid state by a direct reduction process using natural gas or non cooking coal as reluctant.

Jan 16, 2011· Coal based sponge iron plant: a conventional process. The process flow diagram of conventional coal-based sponge iron plant is shown in Fig. 1. The operating data shown in Fig. 1 is taken from a typical Indian sponge iron plant. In the conventional process kiln feed, which consists of iron ore, feed coal, and dolomite, is fed to the rotary kiln.

For producing the sponge iron through this process requires high grade of iron ore and non coking coal. Gas Based DRI / HBI. In this process route, iron oxides are converted to the DRI / HBI by using natural gas in a vertical shaft furnace. For steel producers, it is a preferred metallic, energy efficient and much more eco-friendly route.

Jul 29, 2010· In general sized iron ore of 5-18mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 15-20%.The mean particle size of iron ore shall be restricted to 11mm in order to achieve uniform Fe metallic of all grain size fraction of the product.

Mar 08, 2021· The Al Reyadah [(CSLForum, 2020)][ (Sakaria, 2017)] plant uses SMR for syngas production and then feed it as reducing gas to a HYL DRI plant for sponge iron production. The off-gas from the process consists of CO2 and H2O, which is the source of capture for CCS facility.

Sponge Iron, also known as Direct Reduced Iron is produced from Hematite Iron ore (5 to 18 mm size) by removing the oxygen by direct reduction process using non coking coal as the fuel and reducing agent in Rotary Kiln. Sponge iron is rich in Metallic Iron (Pure Iron) with consistent chemical & …

Thus the energy conservation in sponge iron plants has also sought the attention of many investigators. Eriksson et al studied on the energy survey of sponge iron process and showed that the process is 40% energy efficient and the major loss is through exhaust gases [6]. Energy efficiency is defined as the energy needed for the reduction ...

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 ...

May 30, 1997· The invention relates to a process for producing sponge iron from particulate iron-oxide-containing material, wherein the iron-oxide-containing material in a reduction zone is reduced to sponge iron by means of reducing gas and the gas forming during reduction is withdrawn as top gas, as well as to a plant for carrying out the process.

The sponge iron is a substitute for scrap in the electric arc furnace (upto 80%), which can be easily manufactured from indigenously available raw materials at very competitive price. Sponge Iron is the iron ore reduced in solid state by a direct reduction process …

MANUFACTURING PROCESS. In the DRI plant, production of sponge iron using a solid reductant involves reducing iron ore (lumps/pellets) with a carbonaceous material like coal or lignite. The reduction is carried out in a rotary Kiln (which is inclined and rotates at a pre-determined range of speed) at a stipulated temperature ( 850 °C – 1050°C).

The average sponge iron plant size in India is 0.0886 MTPA implying the dominance of medium scale plants in the country 18. The average plant size in Chhattisgarh is 0.1026 MTPA and that in Jharkhand is 0.0641 MTPA19. Odisha has plants with 0.0971 MTPA capacity on an average while in West Bengal the average capacity of a sponge iron plant is 0 ...

Potential Pollution Problems Met With in Sponge Iron Production ... the main environmentally related issues involved in the process of producing liquid steel from iron ore by the direct reduction route. The report was examined ... Environmental Impact of a HYL III Process Plant . 69 ; 10 .

Best TMT Bar Manufacturing Plants India – 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 predetermined range of speeds) at a ...

The process of sponge iron making aims to remove the oxygen from iron ore. The quality of sponge iron is primarily ascertained by the percentage of metallization (removal of oxygen), which is the ratio of metallic iron to the total iron present in the product. Sponge iron manufacture is highly sensitive to raw material characteristics.

Nov 09, 2014· Sponge iron making process 1. ALBERTUS SEPTYANTOKO 2712100014 2. IRON ORE • Iron = 65-67 % • SiO2 + Al2O3 = 2-3 % • CaO + MgO = 0,5-1 % • Sulphur = 0,02 % max • Phosphorus = 0,04 % max Chemical Composition • Size = 5-18 mm • Shatter Index = +95 % • Tumbler index = +88 % • Reducibility Index = +94 % • Thermal Degradation Index = 5 % Physical Composition

Steel Exchange India Limited is having a Sponge Iron manufacturing unit in technical collaboration with world renowned M/s Mannesmann Demag of Germany (CODIR Process). With an installed capacity of 2x350TPD and can able to produce Sponge Iron of 0.225 Million Tons per Annum 1.

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 …

Jul 29, 2010· In general sized iron ore of 5-18mm is used in the process of manufacture of sponge iron on all types of rotary kiln with +16mm not exceeding 15-20%.The mean particle size of iron ore shall be restricted to 11mm in order to achieve uniform Fe metallic of all grain size fraction of the product.

of sponge iron in the world). In India, the pioneering work was done by NML, SIIL and TISCO. The first commercial-cum-demonstration plant was established using coal based technology during 1980's by Sponge Iron India Limited. In the year 1989, ESSAR steel made a beginning in production of sponge iron through gas based

MIDREX® Direct Reduction Plants – 2020 Operations Summary. Despite the COVID-19 pandemic that was declared towards the beginning of 2020, MIDREX® Plants produced 65.7 million tons in 2020, 3.0% less than the 67.7 million tons produced in 2019. Read More.

Exporter of Process Plant Equipment - Sponge Iron Plant Equipment offered by Varsha Techno Ind- Equip Pvt. Ltd, Hyderabad, Telangana.

We offer Turnkey Plant Projects including Consultation, Integration, Setup and Maintenance for Cement Plant, Sugar Plant Sponge Iron Plant, Steel Re-Rolling Plants, Material Handling Equipment, Sugar Plants, Sponge Iron Plants, Steel Plants manufacturing, Harvesters Industries and various other Original Equipment Manufacturers Read More.

Sep 01, 2020· Its pilot plant in Lulea, Sweden, will produce sponge iron, a crucial ingredient for its steel-making process, while carrying out tests between …

Jul 14, 2014· 2. Description of Sponge Iron Manufacturing Process 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 ...

Sponge generation iron plant Design of modifications Payback period a b s t r a c t The present work is an attempt to conserve energy in coal based sponge iron industry incorporating certain design modifications without disturbing the process technology. A typical sponge iron plant has

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. The reduction takes place using gaseous reductants (CO + H ...

Mar 30, 2016· 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 …

Aug 07, 2016· • Sponge iron produced by the process will be the high grade which contains 80% Fe, 12% FeO and 8% gangue material. After separation of sponge iron in the magnetic screen/pulley, the remains are collected as char. Char has good amount of fixed carbon (25% - 30%) and moderate GCV (2500 - 2600 Kcal/Kg).

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 ...