The electric smelters are also known as open bath furnaces (OBF). The name results from the fact that the bath around the electrodes must be kept free of metallic feed, in order to avoid contact between the electrically conductive DRI and electrodes. They are similar in design to conventional submerged arc furnaces.
The leading solution for decarbonizing existing sites is the combination of the well-proven MIDREX® Direct Reduction Process with an SMS Open Bath Electric Furnace (OBF) to replace blast furnace (BF) ironmaking. The first example of this technology will be installed at thyssenkrupp Steel (TKS), with expected start. The perfect solution for melting high carbon DRI to produce hot metal.
The electric furnace works using brush arc and Søderberg electrodes. It can tap hot metal into torpedo cars. Slag has same composition of blast furnace slag.
Within iBLUE®, the OSBF is the best green substitute of Blast Furnaces. Direct Reduction plant + Electric Arc Furnace Direct Reduction plant + Open Bath Furnace Conventional BF-BOF Blue 100% 75% 50%. Agenda Role of the open bath furnace in decarbonization OBF types - circular & rectangular.
In this route, the blast furnace is substituted by a combination of the MIDREX ® direct reduction process and an Open Bath Furnace (OBF). Initially, it is possible to run the direct reduction process on a natural. Metals industry partner SMS group will supply the core technology of two 100 MW rectangular six electrode open bath furnaces through its Johannesburg-based subsidiary METIX for a €1.8.
Metso's Outotec open slag bath smelting furnace is a closed furnace that offers high productivity and efficiency in a sustainable way. It is robust, safe, and easy to operate. The furnace is custom designed for each individual application and the optimized furnace and feed system layout makes it a highly cost.
Direct reduction into open bath furnace saving up to 65% CO2 Another leading candidate in the race to decarbonize existing sites is the combination of the well-proven MIDREX® direct reduction process using a shaft furnace and an open bath electric furnace (OBF), in place of existing blast furnaces. The present paper illustrates an innovative steel processing route developed by employing hydrogen direct reduced pellets and an open slag bath furnace. The paper illustrates the direct reduction reactor employing hydrogen as reductant on an industrial scale.
The solution allows for the production of steel from blast furnace pellets transformed in the direct reduction reactor. The reduced.