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Anonymous Poster #1

Sponge Iron Melting in Induction Furnace

08/31/2012 2:11 AM

hIIII, EVERYONE

I want to know the acceptable FeO composition in slag made by melting 86% sponge iron along with 10% scrap & 4% pig iron in acid lined induction furnace made by Inductotherm of capacity 12 MT & what should be its sp. power consumption. & what is the role of carbon addition starting from charging to finshing the heat.

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Guru

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#1

Re: Sponge Iron Melting in Induction Furnace

08/31/2012 11:18 PM

12 Mega Tonne!!!? That's a pretty big kettle.

The carbon reacts with the oxide to smelt the iron out of it. CO2 is the waste product of this reaction.

Why do you need to know?

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Participant

Join Date: Dec 2011
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#2
In reply to #1

Re: Sponge Iron Melting in Induction Furnace

09/01/2012 12:09 AM

I want to know detail optimum operation strategies. The slag formed is FeO-MnO-SiO2. what should be the FeO % in slag.what should be Al2O3%.

What should we charge for pet coke ? & when will we charge it?

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#4
In reply to #2

Re: Sponge Iron Melting in Induction Furnace

09/01/2012 12:52 AM
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Guru

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#3

Re: Sponge Iron Melting in Induction Furnace

09/01/2012 12:17 AM

You may be able to fill your knowledge gaps here....

Furnace slag composition.

I hope there is somebody at your workplace to mentor you.

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Guru

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#5

Re: Sponge Iron Melting in Induction Furnace

09/02/2012 8:14 PM

we have millions of tons of it in my area if you run out.

on a more serious note, if it where profitable, steel mills would'nt be dumping it over the hill.

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Active Contributor

Join Date: Oct 2012
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#6

Re: Sponge Iron Melting in Induction Furnace

10/10/2012 4:24 AM

The principle of induction melting is that a high voltage electrical source from a primary coil induces a low voltage

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Anonymous Poster #2
#7

Re: Sponge Iron Melting in Induction Furnace

12/01/2019 12:21 AM

Hi every body,

If you want to melt 86% sponge in Induction furnace, then go for sponge iron of metallization 92% +/-1% so that your FeO in sponge will be around 7-8% which will give good carbon boiling in metal bath if you maintain required opening carbon in the bath. Carbon addition should be 15-20 kgs for per ton of sponge melt. The power consumption shall be 850 units +

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#8

Re: Sponge Iron Melting in Induction Furnace

12/01/2019 1:41 AM

Not all sponge iron is the same, it depends on the process and the fuel and the feed to the DR unit, amongst other characteristics, which determine its efficiency, hence the results of the reduction., ie., amount of extraction of the oxygen content left in the FEo, fe3o4, even in the fe2o3 state. I have observed that the highest quality of DRI is made with nat. Gas and the lowest is with coal, but then it depends on quality of coal and its reactivity.

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