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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With fugnace 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.
Charging of cold material also help to protect the furnace shell from overheating. A two stage boiler system is used for the waste heat recovery. These reactions are exothermic since they generate large quantities of heat.
Designed by Elegant Themes Powered by WordPress. 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 owns six mining complexes in USA that hold an estimated million tonnes of coking and thermal coal.
Leave a Reply Cancel reply Your email address will not be published. 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.
Cold material like scrap or DRI is added to the furnace to utilize this energy and to avoid overheating of the bath.
The mill is capable of producing high strength steels including Dual Phase steel. 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.
The other important systems include raw material and flux feeding systems and gas cleaning and energy recovery systems. 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. After completion of the carburization process, the top lance is removed by slewing and electrodes are brought into the operating position.
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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 conatc use in the steel plant. Posted by Satyendra on Apr 17, in Technical 1 comment. 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. 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.
Donate Grateful for your donation! Alternatively two stationary top lances, one for each furnace shell for the blowing of oxygen can also be used. Depending upon the requirements of the finished products, CONARC process is followed by a ladle furnace or a vacuum degassing unit.
With this the second phase known as arcing phase starts. 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. 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. 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.
In CONARC process, out of furjace furnace shells, one shell furnnace in the converter mode using the top lance while the second shell at that time operates in the arc furnace mode.
The Conarc Furnace will be fed with inputs from Blast Furnace with a capacity of 1.
CONARC Process for Steelmaking |
It will also be one of the few steel facilities which are fully integrated and will produce the entire range of flat products. The process was developed for using any kind and mix of raw materials 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. All rights reserved Legal disclaimer Sitemap Contact us.
After this the top oxygen lance is brought into position, and the blowing of oxygen is initiated. The temperature of the bath is then increased to the required value.
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. Essar Steel has installed continuous caster furnaec 1. These components are designed as pressure parts for steam generation.
Option is available for introducing bottom stirring devices integrated to the bottom of each of the furnace shell. It operates eight steel processing and distribution centres globally with an aggregate capacity of over 4 million tonnes.
The basic equipment of CONARC process consists of two identical furnafe lined furnace shells, one slewable electrode structure with one set of electrodes serving both the furnace turnace, one electric supply transformer etc. The technology of this process is based on the increased use of hot metal in the electric arc furnace and furnade aimed at optimizing energy recovery and maximizing productivity in such an operation.
Essar Steel commissions second Conarc Furnace. Your email address will not be published. The basic concept of CONARC process is to carry out decarburization in one shell and electric melting in another vessel.
The CSP is capable of producing strips of thickness as low as 0. During this phase known as funace phase, the content of carbon, silicon, manganese, and phosphorus in the bath are reduced. 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.
Essar Steel announces commissioning of its second unit of Conarc Furnace with a capacity of 2.
Essar has the largest retail channel through Essar Hypermarts.