Char has good amount of fixed carbon 28 % 35% and moderate gcv 2720 2780 kcalkg. The main raw materials used for the production of sponge iron is iron ore which is purchased and transported from nmdc through railway wagons. Recovery and utilization of waste heat in a coal based. The cooler is 12m in length and water is sprayed directly as well as indirectly for cooling the material. Pdf production of sponge iron powder by reduction of. Also, we have an inhouse design unit which facilitates our experts to fabricate the latest design of ongoing trend of the market. Get sponge iron at best price with product specifications. Pdf waste heat recovery steam generator in sponge iron. Contact verified sponge iron manufacturers, sponge iron suppliers, sponge iron exporters wholesalers, producers, retailers and traders in india. Sponge iron plant or direct reduction plant drp is designed to produce 350tons of sponge iron per day in a rotary kiln using iron ore, non coking coal and dolomite as the raw materials.
This book provides a fascinating study of the very important emerging field of direct reduction in which iron ore is directly reduced in the solidstate, using either natural gas or noncoking coal, to produce a highly metallised material, referred to as sponge iron or direct reduced iron. Nov 17, 2012 sponge iron units do not use the pollution control equipment. Oct 25, 20 sponge iron industry needs quick actions for survival presently this important segment of indias steel industry is passing through its worst crisis and urgent steps are needed for its survival. Abstract the author tries to foresee the future of sponge iron making in india and forecasts that the metallur. This is to certify that the thesis entitled energy integration in sponge iron plant using heat of waste gas being submitted by annavajhala mrudula as an academic project in the department of chemical engineering, national institute of technology, rourkela is a record of bonafide work carried out by her under my guidance and supervision. Sponge iron produced by this plant is of high grade which contains 80% fe, 12% feo and 8% gangue material. If you continue browsing the site, you agree to the use of cookies on this website. Detailed project report suraj products limited village barpali, po. Dec 19, 2017 india is the worlds largest producer of sponge iron, most of which is produced primarily through the coal based method of production.
The carbon content in gas based processes can be controllrd to a level of 1. Based on the types of reductant used, dr processes can be broadly classified into two groups. Scheme document for sponge iron subsector page 2 of 65 important notice. We, at industrial technical consultant itc in raipur, started in the year 2000. The material is cooled down to 100oc and fed to magnetic separator for separating the sponge iron and nonmagnetic char. The information contained in this scheme document for auction of coallinkages in the sponge iron subsector scheme document or subsequently provided to bidders, whether verbally. This shows that the manufacturing process mostly uses thermal energy and application of electrical energy is insignificant. Productivity increment of coal based sponge iron plant using. 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. Find here information of sponge iron selling companies for your buy requirements. Explore sponge iron plant 350 500 tpd openings in your desired locations now.
Iron ore, as mined, is a combination of iron with oxygen and various other unwanted substances, generally known as gangue. Miel is in the elite group of primary steel producers with a world class integrated steel plant at raigarh that has a production capacity of 1. Therefore, the ore should be high in iron content and low in gangue, physical specification size 520 mm oversize sponge iron plants ranges from 25. With the domestic steel industry picking up during the past year and prices moving up in leaps and bounds, india has emerged as the worlds largest producer of sponge iron or direct reduced iron, accounting for around 16 per cent of the global output. Iron ore is the source of iron and available in oxide form namely hematitefe2o3. Nov 12, 2012 advances in rotary kiln sponge iron plant free pdf free pdf free. Demonstration against sponge iron pollution in orissa click to view orissa serves notices on 26 sponge iron units click to view orissa acts on defaulting sponge units. Altekar abstract on the background of the imbalance in the occurrences of vast deposits of high grade iron. Study on accretion formation on dri kiln during spong iron production chandrashekhar shrivas, himanshu shrivas abstracttoday is an era of competition, and contrary to this the iron and steel industries are also suffering from the same. The carbon content in sponge iron produced by coal based rotay kiln processes are generally low and is in the range og 0.
Sponge iron industry needs quick actions for survival the. Find details of companies offering sponge iron plant at best price. Globally conventional fuels are going to be exhausted. Sponge iron is fast becoming a significant input in lowcost steel production.
Iron from iron ore can be in solid form or in molten formin solid form, iron ore can in molten form iron can be be produced in the1. Biju patnaik encouraged us whole heartedly with active support by shri. Material balance in a rotary kiln sponge iron plant. This is to certify that the thesis entitled design of waste heat recovery system in a sponge iron plant being submitted by saurav kumar sahu as an academic project in the department of chemical. This ensures very high metallization of sponge iron. Download free pdf ebooks with advances in rotary kiln sponge iron plant free pdf free ipad and nook in pdf format for free download. Raw material preparation plant direct reduction plant raw material preparation plant the basic raw materials for the production of sponge iron are iron ore, non coking coal and dolomite. Iron sponge is a highly porous, coarsely powdered or granular form of iron metal with numerous applications in catalysis, gas purification, and alloy production.
Sponge iron production by direct reduction of iron oxide. We are the leading manufacturer of directreduced iron dri, also called sponge iron, which is produced from direct reduction of iron ore in the form of lumps. The sponge iron is also known as direct reduced iron, hot briquettes iron or metalized iron. Sponge iron process for manned space exploration final project report june 2005 executive summary redox cycling of an iron rich contact mass has been investigated and applied with. The first metallurgical step is to reduce iron ore to metallic iron, a process which is mostly carried out in a blast furnace, using coke as both a fuel and reducing agent. Pdf design modifications for energy conservation of sponge iron. Directly reduced iron looks like sponge in texture due to pores and hence is called sponge iron.
A typical coal based sponge iron plant is investigated to utilized waste heat to preheat the feed coal and air as well as increase the productivity of sponge iron by applying heat. Growth in the sponge iron production can be attributed largely to the popularity of secondary steelmaking route. Waste gas from the rotary kiln of the sponge iron plant exits at a temperature around. Nov 09, 2014 making process iron ore to sponge iron slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. Apply to 1 sponge iron plant 350 500 tpd jobs on, indias no. Sponge iron plant 350 500 tpd jobs, 1 sponge iron plant 350.
One of the major challenges for sponge iron plant is the accretion formation. Processes that produce iron by reduction of iron ore in solid state below the melting point are generally classified as dr processes. Naik manager of construction and special projects tata iron and steel company ltd. Iron ore after due reduction inside the kiln is discharged to a rotary cooler of 3. Iron ore crushing is not required since sized material has to be purchased. We are a consulting firm providing services to the clients for the establishment of plants from steel and power sector in india and abroad on consultancy as well as on turnkey basis. Modeling of rotary kiln for sponge iron processing using. Maoist politics emerged solely due to pollution from sponge iron plants in west midnapore. After separation of sponge iron in the magnetic screenpulley, the remains arecollected as char. Sponge iron plants cerana foundation, oct 2006 7 raigarh windroses at 0830 hrs raigarh windroses at 1730 hrs sponge iron plant air emissions air emissions from sponge iron plants see annex 2 include highly toxic heavy metals, which may be released in three ways. A simplified flow diagram of sponge iron making in rotary kilns is given in fig51. We are offering a range of sponge iron plant and other equipment to our clients at optimum prices. With an installed capacity of 2x350tpd and can able to produce sponge iron of 0. For this purpose a case study of typical sponge iron production process is considered.
The process of sponge iron making aims to remove the oxygen from iron ore. Direct reduced iron dri, also called sponge iron, is produced from the direct reduction of iron ore in the form of lumps, pellets, or fines to iron by a reducing gas or elemental carbon produced from natural gas or coal. The process of reduction causes micro pores in the ore body turning it porous. Iron ore of size 5 mm to 20 mm is being used for the production of sponge iron. This is to certify that the thesis entitled design of waste heat recovery system in a sponge iron plant being submitted by saurav kumar sahu as an academic project in the department of chemical engineering, national institute of technology, rourkela is a record of bonafide. Major plant facilities 1 raw material preparation system raw material system mainly consist vibro feeder, crusher and screen. Whilst the zisco plant operates at an adequate level of technology, the numerous other small steel plant rolling mills and rerolling mills are, without exception, operating with substandard equipment and. Upload your resume in doc file or pdf format max file size. With the availability of abundant raw material in india, the production of sponge is set to multiply over the. In the year 1995, the then honble chief minister of orissa, late shri. Schematic of optimised rotary kiln sponge iron making process. Thus there is a great need to create facility for washing of coal around the coal mines.
This product is known as direct reduced iron dri or sponge iron. Study on accretion formation on dri kiln during spong iron. In all coalbased dr processes using rotary kilns, sized. In general the gangue content in sponge iron varies from 4% to 8%. West midnapore, cse report peoples movement very strong against the sponge iron industry especially rashmi cement ispat in 2009, in west midnapore. Additional technical, research and safety msds information is available. Pyari mohan mohapatra, ias, to setup this risktaking venture sponge iron plant in orissa. Pdf during the operation in the coal based sponge iron plant, a tremendous amount of heat is generated and significant part of this heat. Coal acts as the reductant to romove oxygen from iron ore. Oct 29, 2016 scheme document for sponge iron subsector page 2 of 60 important notice. Sponge iron manufacture is highly sensitive to raw material characteristics. Sponge iron is the product created when iron ore is reduced to metallic iron, usually with some kind of carbon charcoal, etc, at temperatures below the melting point of iron. The slrn process also uses rotary kiln for reducing iron ore.
1086 1164 1610 62 1344 169 628 1597 953 1255 1270 707 1179 662 710 1133 187 1056 975 414 1107 685 1501 531 1007 969 386 110 634 559 1025 583 1034 38