Rotary Kiln Process of Making Sponge Iron Used of The Construction Industry Find Details about Bauxite Rotary Kiln Quicklime Rotary Kiln from Rotary Kiln Process of Making Sponge Iron Used of The Construction Industry Luoyang Zhongtai Industries Co Ltd
Get PriceSponge iron production by Rotary Kiln Introduction … Various rotary kiln processes for production of sponge iron are 1 SL/RN process 2
Get PriceAs is shown in FIG 1 iron ore 2 is charged to a rotary kiln 1 and reduced therein to sponge iron In a separating stage 4 the solids 3 discharged from the rotary kiln 1 are separated into sponge iron 5 and surplus carbonaceous solids One part 6a of said carbonaceous solids is supplied to the electric reducing furnace 7 and the other part 6b
Get PriceThe overall production process inside the kiln requires a duration of 10 12 hours during which the iron ore is reduced and discharged to a rotary cooler for cooling below 1000C to prevent reoxidation and effect a better separation of non magnetic from sponge iron The process of sponge iron making aims to remove the oxygen from iron ore and
Get PriceThe Rotary Kiln process is a well established process for production of coal based sponge iron Rotary kiln of certain dia and length is provided for reduction of Iron Ore into sponge iron using non coking coal as reductant and Dolomite as sulphur scavenger however the Diameter and Length are to be designed based on the Plant Capacities
Get PriceThe process of sponge iron making aims to remove the oxygen from iron ore WPSL has 4 x 100 tonnes per day TPD rotary kilns shatter tumbler amp abrasion indices reducibility etc at present Iron Ore Pellet is used in the DRI section Sponge Iron WELSPUN STEEL LIMITED The process of sponge iron making aims to remove the oxygen from iron ore SL RN technology is a coal based rotary kiln direct
Get PriceThe chemical process involved in making sponge iron removes oxygen from iron ore by using a reducing agent in the form of non coking coal [5] The reduction process is carried out in an inclined horizontal rotary kiln which rotates at a programmed speed A temperature profile ranging from 700 oC 1050 C should be maintained along the length of the kiln at different zones As the material flows
Get PriceProduction of Sponge Iron through Tunnel Kiln Process By Dr S S Bedarkar and Ram Singh India s total production of steel for the year 2024 was about million TPA Out of which almost 40% of the steel is being melted using induction furnace route Sponge iron or directly reduced iron DRI is one of the most important raw materials for making steel Presently India tops the world chart
Get PricePdf Modeling Of Rotary Kiln For Sponge Iron Processing companies like jspl and Ms heg ltd sale the surplus amount energy to state electric board fig 33 schematic of optimised rotary kiln sponge iron making process iron ore and non coking coal along with dolomite are fed continuously to the charge end of rotary kiln
Get PriceThe major function of a rotary kiln is to calcinate various materials in a very high temperature environment During the calcination process the raw material turns into the desired end products via a series of physical and chemical reactions Rotary kiln is not a whole block It is combined with different parts
Get PriceIn the sponge iron process concentrated and finely divided iron ore is reduced in solid phase into sponge iron at high temperatures in rotary kiln The process is very energy demanding
Get PriceSep 10 2020During the sponge iron manufacturing process hot air enters through the air tube and air nozzle of the sponge iron kiln providing heat for the reaction The mixture first enters the preheating zone of the sponge iron rotary kiln and is heated to the reaction temperature
Get PriceMagnetic Ore Iron Reduction Process In Tunnel Kiln Malaysia Magnetic Ore Iron Reduction Process In Tunnel Kiln Malaysia May 01 2024 Direct reduction roasting was carried out in a tunnel kiln at a temperature of 1150 length height and width of the tunnel kiln were 167 and m tunnel kiln was being used to produce direct reduction iron from iron scale at the same
Get PriceThe main raw materials for the production of DRI by the rotary kiln process are i sized graded iron ore or iron ore pellets ii non coking coal and iii dolomite in small quantities to scavenge the sulphur Iron ore of the right quality is the basic input for the coal based direct reduction process
Get PriceRotary kiln is a rotating cylindrical vessel which is used for drying calcination and sintering in a continuous process with The hot gases may be generated in an external furnace or by a flame inside the kiln Widely used for cement pet coke calcination sponge iron and other materials it uses hot gases for the operation
Get Pricerotary kiln processcrusher Sponge iron rotary kiln process Anti Corruption Helpline Sponge Iron Composition Manufacturing Process Lloy Sponge iron making is a process in which iron ore lumps typically 5mm18mm size are tumbled with a selectgrade of ironcoking coal little dolomite inside an inclined rotary kiln and control busted in the presence of air for about 12 hours before the products
Get PriceThe process of making sponge iron occurs by removing oxygen from the iron ore The quality of sponge iron is mainly determined by the percentage of metallization removal of oxygen This parameter is equal to the ratio of metal iron to total iron in the product Sponge iron itself is not used but can be processed to produce molten iron
Get Priceleaving the rotary kiln and prehardened to a compressive strength of at least 10 kgf/pellet This strength is necessary for subsequent treat ment in the rotary kiln Experience with different raw materials In the past a number of different ores and fuels have been tested for their amenability to treatment by the KRUPP Sponge Iron Process
Get PriceSince DRI is produced by removing oxygen from iron ore its structure is just like sponge with a network of connecting pores These pores results in a large internal surface area which is about 10 000 times greater than the internal surface area of solid iron Due to this DRI is also known as Sponge Iron
Get PriceDuring the process of manufacture of sponge iron coal injection plays a very vital role in maintaining the product quality Due to highly endothermic nature of Boudouard reaction heat has to be continuously supplied in entire reduction zone of rotary kiln Generally the length of reduction zone is 60 70% of total kiln length
Get PriceHowever Rotary kiln process suffers from serious limitations like low productivity and pollution In this respect fixed bed Tunnel kiln furnace are evolving as an alternative to Rotary kiln process Iron ore fines and the low grade beneficiated iron ore cake are directly used for manufacturing of sponge iron in tunnel kilns The material bed
Get PriceBased on the types of reductant used the s ponge iron processes can be broadly classified into two groups 1 Using solid reductant coal based direct reduction DR process and 2 Using gaseous reductant gas based direct reduction DR process Processes of sponge iron are summarized as shown in Table
Get PriceProcess of making Sponge Iron Sponge Iron production using coal involves reducing iron ore with coal or lignite The reduction is carried out in a Rotary Kiln at a pre determined temperature and controlled atmosphere The input raw material iron ore coal and limestone in the required calibrated sizes are fed into the rotary kiln which is
Get PriceNext smelting process it is suggested to have a high residual carbon concentration as there will be a carbon boil mechanism to reduce iron oxides that are still lagging on the DRI Keywords sponge iron direct reduction iron DRI rotary kiln magnetic hematite reduction process coal
Get PriceJan 27 2024 process making sponge iron rotary kiln process making sponge iron rotary kiln animation in south africa tunnel kiln process sponge iron in lineplant South Africa Plan a Holiday in South Africa SA Rotary Kiln Process of Making Sponge Iron New Age International begin until the middle of 19th century Perhaps the very first patent in UK More Iron Ore Pellets Manufacturing
Get PriceRegardless of rotary kiln size or configuration the basic principles outlined in this manual govern the reliable operation of every rotary kiln calciner dryer incinerator digester and cooler application For questions or problems with your specific application please contact North American Kiln for assistance Kiln Tyre and Support Roller Assembly For All type Dryers Rotary Kiln Support
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Get PriceJul 29 2024· 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
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Get PriceA Thesis Submitted for Partial Fulfillment of the Degree Industrial view of Sponge Iron making Rotary Kiln 24 Schematic view of internal heat exchange in Rotary kiln 26 Schematic view of Lobe Blower 27 Schematic view of Air material flow in Rotary kiln 27 Filling of Bed Geometry 28 Schematic Drawing of discharge end of Kiln 38
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