iron and steel manufacturing process.ppt. iron and steel manufacturing process.ppt - Free download as Powerpoint Presentation . ppt, PDF File .pdf, Text file .txt or view presentation This technique produces 97.0 percent pure iron, which is called, solid Sponge Iron.
Feb 22, 2013 2D CFD model of rotary kiln of sponge iron process is developed to study the effects of angle of inclination, number of rotation and mass flow rate of iron ore on output parameters.
Jul 10, 1995 A process of manufacturing a sponge iron with low sulphur content by depositing a charge made up of superposed layers of finely divided material on a moving hearth, at least one of the layers being substantially made up of iron oxides and at least another of the layers being made up of a mix of a solid reducing agent containing carbon and a desulphurizing agent, heating the charge to
Detailed Project Report DPR on sponge iron reduction plant Present Market Position and Expected Future Demand, Technology, Manufacturing Process, Investment Opportunity, Plant Economics and Project Financials. comprehensive analysis from industry covering detailed reporting and evaluates the position of the industry by providing insights to the SWOT analysis of the industry.
Conducting complete energy audit both process and utility of a sponge iron unit is challenging as there is no laid down procedure to audit the process side. Further, the average heat to power ratio kWthkWe of sponge iron plants ranges from 251 to 311. This shows that the manufacturing process mostly uses thermal energy and application of electrical energy is insignificant.
Sponge iron is a metal product that is produced by a direct reduction of iron ore in solid-state. Sponge iron is a good alternative to waste and is mainly used in the manufacture of steel via secondary routes. The process of making sponge iron occurs by removing oxygen from the iron ore.
Conducting complete energy audit both process and utility of a sponge iron unit is challenging as there is no laid down procedure to audit the process side. Further, the average heat to power ratio kW th kW e of sponge iron plants ranges from 251 to 311. This shows that the manufacturing process mostly uses thermal energy and application of electrical energy is insignificant.
May 30, 1997 Sponge iron production process and plant . United States Patent 5997609 . Abstract In a process for producing sponge iron from particulate iron oxide-containing material, 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. ...
The Sponge Iron Process SIR is a wellknown technology for the production and purification of hydrogen. It consists of a cyclic process in which a feed gas, rich in carbon monoxide and hydrogen e.g. syngas, is passed on an iron oxide magnetite Fe3O4 at high temperature. Read More. Iron Sponge Process Oil and Gas Separator. Iron Sponge Process ...
sponge iron manufacturing process or kiln operation with a view to finding out major energy sav-ing potential of the unit. In the research work we find that it is the incomplete reaction of coal that causes the major energy inefficiency in the process. Substantial amount of un-reacted carbon
A process for producing pig iron is described, which contains a reducing shaft furnace 1 and a melting gasifier 2. The sponge iron produced from iron ores in the reducing shaft furnace is supplied to the melting gasifier and converted there into a pig iron melt. The gas produced in the melting gasifier is supplied directly via a line 4 as reducing gas to the reducing shaft furnace.
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 ...
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
Market share About 23 of sponge iron total production. 4 Tunnel furnace process . This process is the oldest direct reduction method. In this method, Thermal coal is mixed with iron ore as a reducing agent. Natural gas generates the required reduction temperature, and reduction is performed on Silicon Carbide SiC Crucibles in a tunnel furnace.
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
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.
Sponge iron powder . The H gan s process is a direct reduction method for production of sponge iron powder using magnetite ore Fe3O4 and carbon as raw materials. The reduction process takes place in a gas fired tunnel kiln at around 1200 C for 60 hours producing a sponge iron cake that is crushed, milled and
In the year 1908 use of tunnel kiln started for iron oxide reduction. This process was invented by E.Sieurin as Hoganas process 3. In 1954, more kilns came in operation in SWEDEN and USA. Presently it is more popular in China for sponge iron production from beneficiated iron ore fines cakes. In this process, the material passes through
Sponge Iron Production Process Process description This is the case study of typical coal based sponge iron plant of 500 tonne per day capacity. The process flow diagram PFD of the sponge iron process is shown in Fig. 1. Different streams in the PFD are
2. PRODUCTION OF IRON AND STEEL POWDERS 8 2.3 The H gan s Sponge Iron Process The H gan s sponge iron process, is essentially a chemical process in which nely divided iron ore is being reduced with coke breeze yielding a spongy mass of solid metallic iron, which can readily be comminuted to iron powder. The iron ore used at
With such dimension of notion WE in our Sponge Iron Manufacturing process through 4 Kilns 1 350T and 3 500T laid up the best DRI making process in India. It is Coal Fuel based DRI. Coal based Sponge-iron is a metallic product produced through direct reduction of iron ore in the solid state .As such it is also known as Direct Reduced Iron ...
BSIPL started manufacturing sponge iron in the year of 2003 under the management of Bhalotia Group, Jamshedpur. In June 2015, it has been taken over by Shakambhari Ispat Group who is having a vast experience in the line of steel manufacturing. The Admin and Correspondence office is at Diamond Prestige, 41A, AJC Bose Road, 8th
Sponge iron is the product created when iron ore is reduced to metallic iron, in the presence of coal, at temperatures below the melting point of iron. The external shape of the ore is retained with 30 reduction in weight due to oxide reduction resulting in change in
The production process followed at Rashmi Metaliks makes the Sponge Iron unique and superior than its competitors. Iron ore Red Hematite is extracted from the mines and taken to the Direct Reduced Iron DRI Plant where it is charged with different sizes of Coal Carbon by conveyor from different stock houses into the Rotary Kiln.