The sponge iron is melted in the electric arc furnace and induction furnace to produce mild steel and special alloy steel. In the absence of coking coal and good quality iron ore, the sponge iron technology became popular. The use of non coking coal and natural gas as the reducing agent helped in production of sponge iron The sponge iron became an .
Directreduced iron (DRI), also called sponge iron, is produced from direct reduction of iron ore (in the form of lumps, pellets or fines) by a reducing gas produced from natural gas or coal. The reducing gas is a mixture majority of hydrogen (H2) and carbon monoxide (CO) which acts as reducing agent.
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with annual production of Million Tons of washed coal Need for the project and its importance to the country and or region. India is a strong player in the sponge iron business. The installed capacity of Sponge Iron in the country increased from million tons per annum in 199091 to million tons per in 200203.
Consequently, coal consumption is decreased which also reduces cost of coal for per tonne production of sponge iron. Thus, cost component of coal shown in Fig. 4 is directly related to the energy requirement. Energy requirement
Conclusions:Lessthan half of the coalbased sponge iron plant workers in Barjora have the best possible ... The importance of prevention and treatment of these ail
Direct reduced iron (DRI) is also known as sponge iron. It is produced by the reduction of iron ore (in the form of lumps or pellets) by either noncoking coal or a reducing gas produced by reforming of natural gas. The reducing gas can also be produced by the gasification of coal.
Coal for making steel January 2010 ... How important is steel? ... ironsands into a 'sponge iron' and gasifies
Sulphur content: The sulphur content in sponge iron is controlled by adding 16mm of limestone/dolomite along with feed materials which picks up sulphur from the coal preventing the sulphur pick up in sponge iron. The sulphur content in sponge iron can be controlled in the range to 0,025%.
SPONGE IRON PLANT. Strength and granulometry are the two important physical requirements. The oreNoncoking coal is required in sponge iron production, since the
Directreduced 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 elementary carbon produced from natural gas or coal. Many ores are suitable for direct reduction.
The process flow diagram of conventional coal based sponge iron plant is shown in Fig. 1. The operating data, shown in Fig. 1, is taken from a typical Indian coal based sponge iron plant where iron ore, feed coal and dolomite are fed to the rotary kiln. A separate conveyor collects different size fractions of coal for injection into the kiln
Induction Furnace and Important Operational ... the quality of sponge iron, ... Since no coal or fuel is burned in the induction furnace and no refining ...
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Objectives. During the past decade, coalbased sponge iron plants, a highly polluted industry, have grown rapidly in Barjora, India. The toxic effects of particulate ...
12/12/2012· prcess critical parameters for sponge iron ... sponge iron process. The alignment of coal injection in the ... for direct reduction the important ...