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Jul 29, 2010· We are the largest producer of sponge iron using non coking coal as a reductant and and are having the largest coal based plant in the world. We shall discuss in detail all technical aspects of coal base sponge iron making with particular reference to control of important process parameters to achieve quality sponge iron in this august gathering.
In India there are many small rotary kiln furnaces producing DRI, known locally as sponge iron, using coal as energy and reductant source. Some of the sponge iron plants are captive to steel mills, but there is a significant domestic merchant market, India producing 57% .
It is based on Coal Char coming out of Kiln for economical generation of power. One 6 MT Induction Furnace using electrical energy produces Ingots of high quality. Sponge Iron produced is used as a mix Raw Material for producing Ingots. Plant also has one Cone Crusher for Iron .
Jindal Steel and Power Limited (JSPL) is an Indian steel and energy company based in New Delhi, India. With turnover of approx. US billion, JSPL is a part of about US18 billion diversified Jindal Group is a leading player in steel, power, mining, oil and gas and infrastructure in .
During the last decade, coalbased sponge iron plants, a highly polluted industry, have grown rapidly in Barjora, India. Understanding their workers'' perception of health is essential in peoplecentered healthcare. The aim of the study was to assess their healthrelated qualityoflife (HRQoL ...
Mar 16, 2013· Major DRI production processes are either gas based or coal based. Feed material in a DRI process is either iron ore sized to 10 to 30mm or iron ore pellets produced in an iron ore pellet plant. In the gas based plant the reactor, the reduction reaction takes place is a shaft furnace.
The oil is used for heat hardening of iron ore pellets which is generally exploited by gasbased DRI plants. The coalbased DRI units generally require lump ore which need some electrical energy during crushing and sizing operations. The sponge iron (DRI
natural gas as reductant and therefore classified as coal based and gas based process respectively. Due to promising availability of coal of 264,535million tonnes the coal based sponge iron plants share the major amount of its production [2]. At present, there are 118 large and small sponge iron plants operating in India, among
coal based sponge iron plant machinery equipment. coal based lurgi dri process flow chart . grizzly coal mining equipment; ... and other specialized machinery used in the tunneling, ... of a conventional coal based sponge iron plant is shown in Fig.. Read More >> coal based sponge iron plants in us – Grinding Mill China . Chat With Sales
Sponge Iron India Ltd. (SIIL) was the first sponge iron plant in the country which was set up at Paloncha in Andhra Pradesh in 1990 with an initial capacity of Mtpy . Since coal was adequately available in India, production of coalbased sponge iron plants was considered as a feasible option. The growth of the DRI industry
Oct 25, 2013· From 2003, coal based sponge iron route dominated because of limited availability of natural gas and fast growing demand of metallics. In fact, no gas based sponge iron/HBI plant came up after 1994 (19 years). During, there had been a rapid growth of coal based sponge iron plants.
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.
Furthermore, the coal based sponge iron plants found eminence in India despite low efficiency. This was due to less investment, lower gestation period, easy availability of coal and limited accessibility of gas. Presently, coal based units produce ~90% of the total sponge iron in India.
Though coal based sponge iron leads to higher carbon emission, it is still the primary method to obtain sponge iron. Galaxy Enterprise is one of the major manufacturers and exporters in the field of sponge iron in India. It supplies coal based sponge iron to steel plants across the country. Process of Making Coal Based Sponge Iron
Using coal for reduction of iron ore has severe environmental issues as it leads to emission of carbon in great proportions. This is the reason why the world today prefers gas based sponge iron. Galaxy Enterprise is manufacturers and exporters of high quality gas based sponge iron and supplies it to steel plants in the India and overseas country.
Jan 22, 2019· Sponge iron or directreduced iron (DRI) is a transitional material used in the production of steel. Either coal or natural gas is used in sponge iron production. In India, non coking coal is easily available. Thus, the sector depends mostly on coalbased sponge iron and nearly 80% of the total coalbased sponge iron plants are located in India .
A good example would be to have a cohort study comparing coalbased sponge iron factory workers with other types of factory workers (healthy worker effect), rather than with the general population. In conclusion, less than half of the coalbased sponge iron plant workers in Barjora have the best possible respiratory health status.
Jul 15, 2015· Number of Coal Based Sponge Iron Plant State Number of Plant Small Scale Medium Scale Large Scale Odisha 108 26 64 18 Chhattisgarh 68 29 23 16 West Bengal 57 16 39 02 Karnataka 59 24 14 01 Jharkhand 37 13 23 01 Other States 21 05 12 04 Total 330 113 175 42 Scale Production (MTPA) Small ≤ Medium Large ≥ Table: Size ...
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In conventional coal based sponge iron plant, Fig. 1, kiln feed (Stream no. 1), which consists of iron ore, feed coal and dolomite, is fed to the rotary kiln (RK).A separate conveyor collects different size fractions of coal (Stream no. 5) for injection into the kiln with the help of pressurized air (Stream no. 4) from discharge end side.
We are the largest producer of sponge iron using non coking coal as a reductant and and are having the largest coal based plant in the world. We shall discuss in detail all technical aspects of coal base sponge iron making with particular reference to control of important process parameters to achieve quality sponge iron in this august gathering.
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Coal based sponge iron plants in qater. Recovery and utilization of waste heat in a coal based sponge iron of air to 80 C before entering the kiln reduces coal and water consumption by 72% and of coal of 264,535 million tonnes the coal based sponge iron plants
The major Raw Materials required for production of Sponge Iron by the rotary kiln process are: sized graded Iron Ore and NonCoking coal. Limestone, in small quantities, is also required to scavenge the sulphur. IRON ORE The quality requirement of Sized ore for sponge iron .
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