By Yuri N. Toulouevski, Ilyaz Y. Zinurov
The e-book comprises an research of theoretical dependences, bottlenecks and restricting elements of a brand new expertise utilized in either Consteel and shaft furnaces working with flat bathtub. Performances received and prospects of those furnaces are tested. in accordance with this research, a metal melting combination of the recent sort – gas arc furnace FAF has been built and provided. compared to the simplest smooth electrical arc furnaces of exact potential the productiveness of FAF is larger via 36% and electricity intake is reduce through an element of 1.8. setting features are significantly improved.
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The booklet comprises an research of theoretical dependences, bottlenecks and restricting elements of a brand new expertise utilized in either Consteel and shaft furnaces working with flat bathtub. Performances bought and possibilities of those furnaces are tested. in response to this research, a metal melting mixture of the recent style – gas arc furnace FAF has been built and provided.
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Extra info for Electric Arc Furnace with Flat Bath: Achievements and Prospects
This significantly expands a possibility to save the electrical energy due to replacement of it with the energy of fuel. 1 Key Features As has been mentioned above, in case of conventional method of scrap charging from the top, the conditions of heating and melting of scrap by electric arcs, burners, and other energy sources vary drastically over the course of the heat, and the entire process has clearly defined non-stationary nature. Complete elimination of this deficiency which hinders further improvement of EAF’s key characteristics cannot be achieved just by continuous scrap charging.
Obviously, that the high-temperature scrap preheating has not been achieved in these shaft furnaces either. This can be associated with both the insufficient duration of the heating and relatively low heat power of the off-gases flow in furnaces operating without use of hot metal. When operating with hot metal, the heat power of the off-gas flow increases sharply what makes it possible to achieve the high-temperature heating of scrap in the shaft furnaces. As an example, let us review the performances of the shaft furnace of 150-t capacity with pusher operating in China .
Gottardi R, Miani S, Partyka A (2008) A faster more efficient EAF. In: AISTech conference, Pittsburgh, USA Chapter 2 Implementation of New Technology Abstract Advantages and disadvantages of conveyor and shaft furnaces using the new technology and operating with flat bath are examined. Basic performances of these furnaces are compared with those of modern EAFs. Furnaces with flat bath having a number of important advantages, however, lag behind modern EAFs in productivity and in electrical energy consumption as well.