chemical energy. In the above concept, two technologies are worthwhile to mention: Energy optimizing furnace (EOF) and. CONARC (Converter + Arc furnace). CONARC© Furnaces References. Saldanha Steel (PTY) – South Africa. General data: CONARC© size, t. Capacity, 1,, t/year. Start-up, Electric Arc Furnaces. SMS Demag. FURNACE TECHNOLOGIES. SMS Demag – your partner for. FURNACE TECHNOLOGIES. 2. AC EAF. CONARC®.

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The basic equipment of CONARC process consists of two identical refractory lined furnace shells, one slewable electrode structure with one set of electrodes serving both the furnace shells, one electric supply transformer etc. The other important systems include raw material and flux feeding systems and gas cleaning and energy recovery systems.

After cobarc is achieved, the arcing is concluded and the heat is deslagged before the heat is tapped into the teeming ladle. With the commissioning of this furnace, Essar Steel has commissioned all steel making units, iron making and rolling units that are part of 10 million tonne ocnarc project barring a Corex unit which is slated for commissioning later this year.

CONARC References

Cold material coonarc scrap conarrc DRI is added to the furnace to utilize this energy and to avoid overheating of the bath. Essar has the largest retail channel through Essar Hypermarts. During this arcing phase, the remaining solid charge material like scrap or DRI is charged into the bath so as to achieve the desired tapping weight of the heat.

Charging of cold material also help to protect the furnace shell from overheating. Conarx CSP is capable of producing strips of thickness as low as 0.

Home Essar Hypermart Login Contact us. Alternatively two stationary top lances, one for each furnace shell for the blowing of oxygen can also be used. The Conarc Furnace will be fed with inputs from Blast Furnace with a capacity of 1.

Posted by Satyendra on Apr 17, in Technical 1 comment. This energy recovery system on the one hand provides for the required cooling of the gas and on the other hand uses a major portion of the thermal energy for the generation of steam which can be put to further use in the steel plant.


Essar Steel announces commissioning of its second unit of Conarc Furnace with a capacity of 2. Option is available for introducing bottom stirring devices integrated to the furnafe of each of the furnace shell.

conrc The technology of this process is based on the increased use of hot metal in the electric arc furnace and is aimed at optimizing energy recovery and maximizing productivity in such an operation. These components are designed as pressure parts for steam generation. After this the top oxygen lance is brought into position, and the blowing of oxygen is initiated.

The mill is capable of producing high strength steels including Dual Phase steel. Essar Steel commissions second Conarc Furnace. It will also be one of the few steel facilities which are fully integrated and will produce the entire range of flat products. It is the most versatile flat steel producer with integrated facilities from 5-m wide plates, hot rolling, cold rolling, galvanizing and color coating, pipes with a full distribution business consisting of steel processing, distribution centres and retail outlets under the brand – Essar Hypermart.

It operates eight steel processing and distribution centres globally with an aggregate capacity of over 4 million tonnes. In the second stage, the waste gas is cooled down to deg C in a vertical pass boiler especially developed coonarc this type of application. North American operations comprise a four million tonne steel plant in Canada, iron ore reserves of two furnaxe tonnes and is currently setting up a six million tonne taconite plant in USA and Trinity Coal that owns six mining complexes in USA that hold an estimated million tonnes of coking and thermal conrc.

In CONARC process, out of two furnace shells, one shell operates in the converter mode using the top lance while the second shell at that time operates conxrc the arc furnace mode.

Your email address will not be published. The first stage consists of the converter process during which the decarburization of liquid iron is done by blowing oxygen in the liquid iron through the top lance.

Designed by Elegant Themes Powered by WordPress. The basic concept of CONARC process is to carry out decarburization in one shell and electric melting in another vessel. The objective for the development of this process was to utilize the benefits of both the conventional top blown converter steelmaking and electric arc furnace EAF.


In the first stage, the waste gas from the CONARC process is led through a boiler system consisting of a swivel type elbow, a post combustion chamber and a hot gas line and cooled to deg C. Options are also available to introduce burners and injectors systems in the shell for the injection of fuel, carbon and oxygen as per the process requirements. Depending upon the requirements of the finished products, CONARC process is furance by a ladle furnace or fjrnace vacuum degassing unit.

Donate Grateful for your donation! The process was developed for using any kind and mix of raw furnce like hot metal, direct reduced iron DRI and scrap to ensure highest quality requirements for the production of all grades and qualities of steels covering a wide range from carbon steels to stainless steels.

Leave a Reply Cancel reply Your email address will not be published. These reactions are exothermic since they generate large quantities of heat.

During this phase known as converter phase, the content of carbon, silicon, manganese, and phosphorus in the bath are reduced.

CONARC Process for Steelmaking

After completion of the carburization process, the top lance is removed by slewing and electrodes are brought into the operating position. With this the second phase known as arcing phase starts. All rights reserved Legal disclaimer Sitemap Contact us. Essar Steel has installed continuous caster of 1. The temperature of the bath is then increased to the required value. A two stage boiler system is used for the waste heat recovery.

In addition, Essar has also invested in various supporting infrastructure at Hazira that include power plants of MW and a all-weather port of 30 MTPA at total investment of over Rs.

The second stage is the electric arc process during which the electric energy is used for melting of the solid charge and for superheating of the molten bath to tapping temperature.