Mini BOF Technology for Steel Making

Posted in: , on 18. May. 2013 - 13:58

In view of the recent quality requirement of construction steel ( restriction of Phos, S, C etc.), producers of Pig Iron through mini & micro BF are not getting buyers (mostly steel maker in Induction Furnace Route in India. The alternative is to convert the hot metal to carbon steel in BOF route. The problem is of getting know-how and equipment for mini converter ( 5 ton to 25 ton or larger but not 150 ton ). Our company is in a position to provide the total solution of the problem. we developed a tie-up with a German company (Specialist in refining converter) for right technology and indigenous process equipment. ■

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Mini Bof Technology For Steel Making

Posted on 19. May. 2013 - 09:57
Quote Originally Posted by cmmakView Post
In view of the recent quality requirement of construction steel ( restriction of Phos, S, C etc.), producers of Pig Iron through mini & micro BF are not getting buyers (mostly steel maker in Induction Furnace Route in India. The alternative is to convert the hot metal to carbon steel in BOF route. The problem is of getting know-how and equipment for mini converter ( 5 ton to 25 ton or larger but not 150 ton ). Our company is in a position to provide the total solution of the problem. we developed a tie-up with a German company (Specialist in refining converter) for right technology and indigenous process equipment.

We are happy there is finally a recognized rejection of the products of the coal based DRI/Induction furnace route of making steel, and due to quality of the DRI and end steel products. We feel the problem was initiated by an attempt to offer low cost steel making without consideration to quality of finished products and was highlighted by the rejection of the market. We feel the problem could potentially have been solved by correcting the process flow sheet of both the DRI coal based rotary kiln and the DRI smelting using an induction furnace by a number of different means, namely, by the addition of select equipment, select quality of feed, training of process personnel, select modifications of equipment, and more study by equipment suppliers to acknowledge the short-comings.

We can offer consulting services in present design configurations, and we can offer flow sheet changes, including additions of our OMAR furnace (Oxygen-Melting-And-Refining-furnace) with additional technology to operate the steel mill 100% waste free. We have calcullated the smallest system economics would be for a 50K size plant per year. We have not done the math for smaller units. We will not partake in a system or project that does not meet the India strict guidelines of environmental control. Non-disclosure and non-competition agreements along with licensing agreements will be discussed and implemented before any project starts. Please contact: T.C.Inc., President-Thomas J Coyne, jr. at: tcinc002@aol.com ■

Re: Mini Bof Technology For Steel Making

Posted on 24. May. 2013 - 04:19
Quote Originally Posted by tcincView Post
We are happy there is finally a recognized rejection of the products of the coal based DRI/Induction furnace route of making steel, and due to quality of the DRI and end steel products. We feel the problem was initiated by an attempt to offer low cost steel making without consideration to quality of finished products and was highlighted by the rejection of the market. We feel the problem could potentially have been solved by correcting the process flow sheet of both the DRI coal based rotary kiln and the DRI smelting using an induction furnace by a number of different means, namely, by the addition of select equipment, select quality of feed, training of process personnel, select modifications of equipment, and more study by equipment suppliers to acknowledge the short-comings.

We can offer consulting services in present design configurations, and we can offer flow sheet changes, including additions of our OMAR furnace (Oxygen-Melting-And-Refining-furnace) with additional technology to operate the steel mill 100% waste free. We have calcullated the smallest system economics would be for a 50K size plant per year. We have not done the math for smaller units. We will not partake in a system or project that does not meet the India strict guidelines of environmental control. Non-disclosure and non-competition agreements along with licensing agreements will be discussed and implemented before any project starts. Please contact: T.C.Inc., President-Thomas J Coyne, jr. at: tcinc002@aol.com

I am not very sure about a market rejection. However the specification suggested by the regulator has ruined a class of entrepreneur in India. Metallurgists are yet to sure whether more phos in steel is good or bad. Historically steel with more phos results in corrosion resistance, that is probably the most important factor for construction steel / Rebar. No brittle failure for excess phos or S is reported yet in India, however failure or non serviceability of structure due to corrosion in steel is pretty common in any country.

Anyway we have to follow the regulation and need to survive in these difficult days. I really post it for solution not problem. ■

Mini Bof Technology For Steel Making

Posted on 5. Jul. 2023 - 10:16

Thank you for sharing your insights on the issues with the coal-based DRI/Induction furnace route of making steel. It's great to see that there is recognition of the importance of quality in finished products. Your suggestions for correcting the process flow sheet and offering consulting services are valuable. I'm particularly interested in your OMAR furnace technology and its potential to operate the steel mill 100% waste-free. It's reassuring to hear that you prioritize environmental control and adhere to India's strict guidelines. I would love to learn more about the smallest system economics for a 50K size plant per year and discuss potential licensing agreements. On a related note, have you considered mini Bof technology for steel making? It's another promising approach for reducing emissions and improving efficiency.

 

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