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. Many ores are suitable for direct reduction.
In the conventional process of tunnel kiln process, the iron ore and coal are fed in the crucibles or saggars of silicon carbide and loaded on the trolleys. These trolleys are then fed to the tunnel kiln for reduction and the product is sponge iron.
tunnel kiln process sponge iron in south africa. Feb 14, 2016· dri iron furnace china machinery YouTube Feb 14, 2016 Iron was made by smelting iron ore or heating the ore up to melting point various kinds of steel what is the manufacturing process of iron ore, Gold And Diamond Mining In South Africa In baller plant machinery to Introduction of sponge iron (DRI) production by Tunnel Kiln Part,
latest iron ore fines tunnel kiln technology corbothermic reduction of iron in tunnel kiln latest iron ore fines tunnel kiln technology 19 Jun 2013 redution of iron ore in tunnel kiln process ...
The process proposed to be adopted is the rotary kiln proposes using Noncoking coal and iron ore. Iron are undergoes the following reduction reaction in all the processes Fe2o3 + 2 CO = 2 Fe + 3 Co2 As shown in above reactions, carbon monoxide is reducing gases. These reducing gases can be obtained by controlled combustion
The utilisation of iron ore fines : Technical options and challenges . In this conventional mining process nearly 50% iron ore is generated as 10 mm the use of pellet plant with a DRI unit for a conventional sponge iron process In order to facilitate discharge of the .
Direct reduction of iron ore from tunnel kiln process. 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. Read More NEWS; Iron ore pellets manufacturing process by .
Aug 26, 2015· In this training video, sponge iron production by Tunnel Kiln is described. In this method the gas and the thermal coal are used to reduce the iron ore .
Operability Analysis of Direct Reduction of Iron Ore by Coal in an Industrial Rotary Kiln Article (PDF Available) · December 2016 with 331 Reads DOI: /
Iron ore fines are agglomerated into pellets and then indurated using a furnace to create iron ore pellets. These are typically fed to a blast furnace or DRI plant as part of the process to make steel.
Oct 12, 2016· The reduction rate of fluorapatite increases and the amount of liquid slag decreases with the rise of C/O ratio. The reduction of fluorapatite is hindered by the addition of CaO and Na2CO3, thereby allowing the selective reduction of iron oxides upon controlled C/O ratio.
Jun 22, ;32;By using tunnel kiln to produce DRI is that mix the iron ore concentrate, pulverized coal and limestone powder with certain proportion and feed into material barrel for being reduction, and then put these drums on the kiln car and pushed it into the tunnel kiln, when the.
The present project work on "Reduction Behaviour of Fired Iron Ore Pellets" was undertaken with a vision to promote the effective utilization of iron ore and coal fines in sponge iron making. Presently, India has become the world leader in sponge iron production and the production of steel by DREAF route is increasing day by day.
direct reduced iron by tunnel kiln Sponge Iron Dri Plant Made By Tunnel Kiln, Find Complete Details about Sponge Iron Dri Plant Made By Tunnel Kiln,Tunnel Kiln,Sponge Iron,Sponge Iron Plant from . kiln, when the material drum is heated to around 1150 C for reduction and cooling, iron ore concentrate will be reduction and
calculation of iron ore rotary kiln nursingcareerfair. modelling and optimization of a rotary kiln direct reduction saimm. in this paper the direct reduction of iron ore to sponge iron is used as an excel® based calculation is used to determine the kiln bed profile and.
Direct reduction roasting was carried out in a tunnel kiln at a temperature of 1150 °C. The length, height, and width of the tunnel kiln were 167,, and m, respectively. This tunnel kiln was being used to produce direct reduction iron from iron scale at the same time.
direct reduction of iron ore by coal in a rotary kiln using a rigorous process model. Though the objective is not to quantify OI, but to develop deeper understanding of the process, the
Iron Making In Tunnel Kilns. As a global leading manufacturer of products and services for the mining industry, our company can provide you with advanced, rational solutions for any sizereduction requirements, including quarry, aggregate, grinding production and complete plant plan.
Tunnel Kilns can use soft ore; Tunnel Kilns can comfortably work with Iron Ore fines ... Quality of sponge iron made by the Tunnel Kiln technology is superior as compared to that made from the rotary kilns because, while the input raw material gets just about 24hours for the reaction, the figures almost reverse in case of the Tunnel Kiln ...
Iron and Steel Making Machines Pioneers in the industry, we offer induction melting furnace, rotary kiln coal based dri plant, tunnel kiln coal based dri plant, modular billet caster, electric arc furnace and vibro feeder from India.
direct reduced iron by tunnel kiln Reduction Efficiency of Iron Ore–Coal Composite Pellets in Tunnel Feb 13, 2015 Reduction of iron ore coal composite pellets in tunnel kiln emerges with an edge over all other systems studied. India's DRI production has come down from MTPA in 201011 to 21 .
