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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
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Sponge iron being magnetic gets attracted and gets separated from non- magnetic char. The iron ore and coal crushed and screened to respective sizes are fed to rotary kiln through feed tube in pre-determined ratio. The rotary kiln is slightly inclined at an angle 2.5 deg and rotated byRead More
A number of air tubes are provided along the length of the kiln. The desired temperature profile is maintained by controlling the volume of combustion air through these tubes. Air is introduced through these tubes axially in the free space over charge. The rotary kiln is broadly divided into two zones namely, the pre-heating zone and the reduction zone. The pre-heating zone extends over 40 to 50 percent of the length of the kilnRead More
2. ED, SIMA requested the participants to volunteer to spare their rotary kiln for carrying out the R&D for exploring the use of Syn Gas in the rotary kiln. Mr. T Srinivasa Rao, MD, Balajiswamy Premium Steels Pvt Ltd offered his 50TPD kiln for this purpose. 3. Presentation from Tata Sponge Iron Ltd was very much liked and lot of the people showedRead More
India has limited reserves. Therefore, evolution of a technology for the reduction of Iron ... of sponge iron. These are charged into a rotary kiln in requisite proportion along with some dolomite. Coal plays a dual role in the process by acting as a ... are the plants having 500 TPD kiln capacity. The details about no of Sponge iron plantsRead More
especially at the present situation where the sponge iron market is highly depressed. SPONGE IRON QUALITY The rotary kiln sponge iron has lower metallisation (about 85 — 88% on the average) and low carbon content (0.1-0.2%) compared to gas based sponge iron (Metallisation of 92 — 94% and carbon content of 1.5 — 2%)Read More
Sep 01, 2018 The location of Sponge Iron Plant should be at least 500 m away from National Highway and State Highway. The radial distance between two Sponge Iron Plants should be 5 km for plants having capacity 1000 TPD or more. Sponge Iron Plants can be established in designated industrial areas/Estates as notified by State GovernmentRead More
Data-1 includes temperatures profiles and air inlet at positions, AT-1 to AT-3 and MF-1 and MF-2, inside the kiln whereas, flow rates of iron ore, feed coal, slinger coal and sponge iron isRead More
3. The hot reduced sponge Iron along with the semi burnt Coal, discharged from the kiln is cooled in water-cooled cylindrical rotary cooler to a temperature of 100-200 degree centigrade. 4. The discharge from the cooler consisting of Sponge Iron, Char and other contaminations are passed onRead More
Jul 29, 2010 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 ofRead More
Sponge Iron– Prakash Industries Limited. A temperature of 1000 to 1050 degrees is maintained through 70 of the kiln length towards the discharge end side for required reduction the nondischarge end of the kiln ie 30 is the preheat zone where the material is heated to 850 degrees the rotating kiln functions as a heat exchanger a chemical reactor and conveyor ofRead More
The coal base DRI rotary kiln process for production of DRI / Sponge Iron has its many parameters to increase the quality as well as productivity which need careful operations throughout the process. Number of DRI processes came up and rotary kiln process with solid coal as fuel found to be most acceptable process in the worldRead More
Rotary Kiln with SL/RN Process. Coal Based Rotary Kiln for Direct Reduced Iron / Sponge Iron (100 TPD, 350 TPD, and 500 TPD) Solid-state reduction of Iron Ore using either coal/gas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron (DRI). Since DRI is produced by removing oxygen fromRead More
rotary kiln sponge iron highly efficient while consuming small amounts of power which saves energy and fuel expenses. Among the most advantageous attributes of these. rotary kiln sponge iron is their ease of maintenance to give the utmost results. They are not challenging to clean, therefore, dust and other particles that could impede theirRead More