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 ores are suitable for direct reduction. Direct reduction refers to solidstate processes which reduce iron oxides to metallic iron at temperatures below the meltingGet Price
Stone crushing plant is also called rock crushing plant, which is the professional industrial machine to crush sand and stones. It is mainly composed of vibrating feeder, jaw crusher, impact crusher,
Sand making plant can process a variety of rocks, gravels and cobbles into various sizes of construction sand.
Active lime plant is also called quick lime plant, lime production plant and limestone production line. It is equipped with sophisticated equipment, which has stable and reliable operation.
6.1 Schematic Drawing of discharge end of Kiln 38 6.2 2D amp 3D model of Sponge iron Rotary Kiln 39 6.3 Faces of lobe blower. 39 6.4 Coal throw and solid out face at discharge end of kiln. 40 6.5 Cuts made to represent air pipes. 40 6.6 Wall of air pipe. 41 6.7 Face of air pipe. 41 6.8 Overall view and internal view of generated Mesh. 42
The hot product discharged from the kiln is indirectly cooled in a rotary cooler by spraying water on the shell of the cooler. The discharge from the cooler is conveyed through a belt conveyor screened and magnetically separated. Sponge iron and nonmagnetic components are separated and stored in separate bins for further transfer.
Direct reduced iron DRI, also called sponge iron,1 is produced from the direct reductionof iron ore in the form of lumps, pellets, or fines to iron by a reducing gas or elemental carbon
Sponge Iron Storage amp Despatch The overall process extends to a period of 10 to 12 hours inside the kiln. During this time, iron ore is optimally reduced and the hot reduced sponge iron along with semiburnt coal is discharged to a rotary cooler for indirect cooling to a temperature of around 120C.
Rotary kiln is the primary equipment in sponge iron industry, which is used to reduce iron ore to metallic iron i.e. Fe. It is called sponge iron. Rotary kiln is widely used in cement and steel industries. The production capacities of these industries depend significantly on the performance of rotary kiln.
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 ores are suitable for direct reduction. Direct reduction refers to solidstate processes which reduce iron oxides to metallic iron at temperatures below the melting
DRI, also known as sponge iron, is the product of reducing iron oxide in the form of iron ore and steel plant wastes into metallic iron, below the melting point of iron and typically in the range of 8001200 C. Iron oxide is charged into shaft furnace, rotary kiln, or fluidized beds in the form of pellet, iron ore lumps, or fines. The reduction takes place using gaseous reductants CO H
In general the gangue content in sponge iron varies from 4 to 8 . Carbon content The carbon content in sponge iron produced by coal based rotay kiln processes are generally low and is in the range og 0.08 to 0.20.The carbon content in gas based processes can be controllrd to a level of 1.5 to 2.0 based on requirement for steel making.
Sponge Iron, also known as Direct Reduced Iron is produced from Hematite Iron ore 5 to 18 mm size by removing the oxygen by direct reduction process using non coking coal as the fuel and reducing agent in Rotary Kiln. Sponge iron is rich in Metallic Iron Pure Iron with consistent chemical amp physical characteristics.
Iron Ore Crusher Sponge Iron DRI Kiln MET Coke Cold Briquette Mn Fines Briquette Fluxesi.e. Dolomite, Quartz, Lime stone, etc. Blast Furnace Induction Furnace WHR Boiler AFBC Boiler Power STEAM Generation DOLOCHAR FLUE GAS POWER SPONGE IRON PIG IRON C C M Rolling Mill FINISHED Products Mill Scale BF Flue Dust LD Sludge Coke Fines Binders
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. One of the major challenges for sponge iron plant is the Accretion formation. Through this
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 predetermined ratio. The rotary kiln is slightly inclined at an angle 2.5 deg and rotated by
The sponge iron kilns give off hot gases rich in carbon dioxide. WSL has installed 4 Nos of 10 TPH Waste Heat Recovery Boilers WHRB and 1 Nos of AFBC Boiler of 20 TPH and these flue gases are used to generate steam to produce 12 Mw power.
Our cement rotary kiln and sponge iron rotary kiln has been developed for performing drying, calcination and sintering work in a continuous process. Widely used for cement, pet coke calcination, sponge iron and other materials, it uses hot gases for the operation.
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Coal Based Rotary Kiln for Direct Reduced Iron Sponge Iron 100 TPD, 350 TPD, 500 TPD Solid state reduction of Iron Ore using either coalgas as a medium of reduction to produce a substitute raw material for steel making is termed as Direct Reduced Iron DRI.
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.
Although iron powder could be produced in sponge iron tunnel kiln production line and it is the main raw material for powder metallurgy production lines. Process In sponge iron production plant by tunnel kiln method, after crushing and screening raw materials, iron ore, coal and limestone are mixed and charged in storage bins in certain ratios.
This book comprehensively deals with the production of sponge iron in the rotary kiln. The book is divided into 17 chapters. The initial chapters give a brief on the fundamental theories and basic principles of sponge iron production, commercially used DR direct reduction processes and physicochemical principles of sponge iron production.
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