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    Sep 14, 2019· Coal in the furnace produces carbon monoxide gas, which reduces iron oxide. The temperature required for reduction is not from coal despite SL RN, but from the natural gas. Therefore, the pollution in this method is very low. Type of reduction furnace: Tunnel furnace consists of three sections: preheating, reduction and cooling areas.

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    About Sponge Iron/DRI Sponge Iron, also known as Direct Reduced Iron is the product produced out of using iron ore. The iron ore is processed through reduction process by the use of gas that emits from natural coal gas resource. CASE Group of Industries manufactures sponge iron by using tunnel kiln, following reduction of

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    Direct reduction of iron is the removal of oxygen from iron ore or other iron bearing materials in the solid state i.e. without melting as in the blast furnace. The reducing agents are carbon monoxide and hydrogen coming from reformed natural gas syngas or coal. Iron . Chat Online; Sponge Iron Tunnel Kiln Sponge Iron China Sponge Iron

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    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. Quality of sponge iron made by the Tunnel Kiln technology is superior as compared to that made from the rotary kilns because, while the

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    tunnel furnace spong iron cycletransportation. Iron Manufacturing process related to the specified 2014-1-14 Iron Manufacturing process related to the specified manufacture(s) reduction process takes place in a gas fired tunnel kiln at around 1200°C for 60 hours producing a sponge iron that is crushed, milled and M-3: Iron Furnace Pig Iron Iron Furnace Pig Iron Iron, Furnace in

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    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. Quality of sponge iron made by the Tunnel Kiln technology is superior as compared to that made from the rotary kilns because, while the

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    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 in tunnel kiln being stationary, it does not require high strength and thermal stability of

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    Tunnel Kiln Process Sponge Iron In South Africa. Sponge iron by tunnel process sale price in nigeria. Popular Searches. Iron Oxide Pellet. Jan 04, 2007 The blast furnace process is primarily used in the carbothermic reduction of oxides, such as iron, zinc, and lead Most of the iron ore bodies commercially explored consist of iron oxid Consequently, rich iron ore andor iron oxide pellets.

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    Tunnel Kiln Process For Sponge Iron. A tunnel kiln process direct reduction of iron ore from tunnel kiln process dec 27 2017 dri tunnel kiln case group dridirect reducted iron tunnel kiln was commissioned on 24 november 2011 the process of tunnel kiln uses fines of iron ore and coal which are mixed together in the oxides of iron are reduced to iron as per the above reactions

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    A tunnel kiln is a continuous kiln, its products can pass through it in an uninterrupted way. Clay Brick. Fire Brick. Sponge Iron . Roller Kiln. A roller kiln is continuous kiln with carrier roller to drive the products forward, its transmission type includes chain wheel drive

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    Producing sponge iron and then working it was the earliest method used to obtain iron in the Middle East, Egypt, and Europe, where it remained in use until at least the 16th century.There is some evidence that the bloomery method was also used in China, but China had developed blast furnaces to obtain pig iron by 500 BCE.. The advantage of the bloomery technique is that iron can be obtained at