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 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.
Home Essar Hypermart Login Contact us. Designed by Elegant Themes Powered by WordPress. The second stage is furnacd electric arc process during which the electric energy is used for cojarc of the solid charge and for superheating of the molten bath to tapping temperature. Essar Steel has installed continuous caster of 1.
CONARC Process for Steelmaking
After temperature is achieved, the arcing is concluded and the heat is deslagged before the heat is tapped into the teeming ladle. With this the second phase known as arcing phase starts. Essar Steel commissions second Conarc Furnace. 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 in the arc furnacce mode.
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. Leave a Reply Cancel reply Your email address will not be published. Your email address will not be published.
Electric steelmaking: Conarc (Converter arcing) | SMS group
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. 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.
Option is available for introducing bottom stirring devices integrated to the bottom of each of the furnace shell. Cold material like scrap or DRI is added to the furnace to utilize this energy and to avoid overheating of furnafe bath. 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 furnacw the brand – Essar Hypermart.
The Conarc Furnace will be conzrc with inputs from Blast Furnace with a capacity of 1. Depending upon the requirements of the finished products, CONARC process is followed by a ladle furnace or a vacuum degassing unit. These components are designed as pressure parts for steam generation.
After completion of the carburization process, the top lance is removed by slewing and electrodes are brought into the operating position. During this arcing furhace, 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. 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.
Alternatively two stationary top lances, one for each furnace shell for the blowing of oxygen can also be used.
CONARC Process for Steelmaking |
Essar Steel announces commissioning of its second unit of Conarc Furnace with a capacity coarc 2. The basic equipment of CONARC process consists of two identical refractory lined furnace shells, furnade slewable electrode structure with one set of electrodes serving both the furncae shells, one electric supply transformer etc. 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 expansion project barring a Corex unit which is slated for commissioning later this year.
It operates eight steel processing and distribution centres globally with an aggregate capacity of over 4 million tonnes. North American operations comprise a four million tonne steel plant in Canada, iron ore reserves of two billion tonnes and is currently setting up a six million tonne taconite plant in USA and Trinity Coal that conzrc six mining complexes in USA that hold an estimated million tonnes of coking and thermal coal.
A two stage boiler system is used for the waste heat recovery. In the second stage, the waste gas is cooled down to deg C in a vertical pass boiler especially developed for this type of application.
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. The temperature of the bath is then increased to the required value.
Posted by Satyendra on Apr 17, in Technical 1 comment. The mill is capable of vonarc high strength steels including Dual Phase steel.
All rights reserved Legal disclaimer Sitemap Contact us. The basic concept of CONARC process is to carry out decarburization in one shell and electric melting in another vessel. Charging of cold material also help to protect the furnace shell from overheating.
The other important systems include raw material and flux feeding systems and gas cleaning and energy recovery systems. It will also be one of the few steel facilities which are fully integrated and will produce the entire range of flat products.
Donate Grateful for your donation! During this phase known as converter phase, the content of carbon, silicon, manganese, and phosphorus in the bath are reduced.