Dc Electric Arc Furnace
TECHNOLOGY EXPERTISE
UNIQUE DC ARC FURNACE TECHNOLOGY In 1995 KFT designed and manufactured its first DC Arc Furnace to recover Silicon for Nimag this yielded positive results Silicon for their process KFT manufactures both AC and DC furnaces for a variety of minerals processes which were until then not technically or economically possible
Get Price
DC Electric ARC Furnace For Ferrotungsten/Tungsten
DC Electric ARC furnace for Casting iron/Metal refining/Fine cabon steel melting When ferro ore was reduced to sponge iron by blast furnace it must be melted by Electric Arc Furnace EAF to remove the impurities then adjust the
Get Price
DC Arc furnace melt electrode
A DC electric arc furnace having a hearth adapted to contain a melt and a melt electrode formed by a metal bar encased by a refractory encasement forming a passage containing the bar with the latter having an inner end contacted by said melt and an outer end adapted for connection with an electric power line a portion of the bar adjacent to
Get Price
DC Arc Furnaces
DC Arc furnace is the most versatile means for melting ferrous metals Until recently AC Arc Furnaces were used for melting as generation distribution of AC power was convenient But with the progress in thyristor Technology DC Supply has become a
Get Price
A fault analysis of DC electric arc furnaces with SVC
Jul 01 2010 This paper proposes the most feasible solution for the failure of 2nd harmonic filter in the static VAR compensator SVC which operates with a DC electric arc furnace EAF at Gwangyang Steel Mill in Korea Various measurements had been carried out on the DC EAF and the main transformer at the point of common connection
Get Price
Electrical Conditions of Foundry Operation of DC and AC
Sep 28 2018 The electrical conditions of operation of ac and dc 0 5 to 25 t furnaces namely the installed active and net powers the maximum electric arc voltage the electric arc operating current and the electrical efficiency are considered and compared The parameters of a dc twin furnace where one power supply is used for two furnaces and the periods of melting and
Get Price
Green steel from the electric arc furnace GMH Gruppe
Here the blast furnace long ago disappeared replaced in 1994 by a giant DC electric arc furnace Since then scrap has been melted superseding the smelting of iron ore using coke At that time conversion to electric steel saved the plant which owes its name to the nearby town of Georgsmarienhütte from going under competing steelmakers
Get Price
100 Ton DC Electric Arc Melting Furnace Manufacturer VAI
Description 100 Ton DC Electric Arc Melting Furnace Manufacturer VAI CLECIM Year 1997 98 The equipment is new and still in its packing cases Furnace Diameter 6700mm Transformer 90 MVA The EAF is a DC type and is complete including transformer all power control equipment hydraulics cooling system PLC s Carbon Injection SVC SCR filters etc System
Get Price
A fault analysis of DC electric arc furnaces with SVC
This paper proposes the most feasible solution to overcome the failure of the 2nd harmonic filter in the static VAR compensator SVC which operates with the DC electric arc furnace EAF at Gwangyang Steel Mill in Korea
Get Price
Cooling system for electrodes in D C
Cooling system for electrodes 11 in D C electric arc furnaces the electrodes 11 comprising a part 11a subjected to the hot environment of the furnace this part being made of graphite in the case of a cathode and of copper in the case of an anode the part 11a being associated with a metallic part 11b by means of a joint 13 which includes inside itself a
Get Price
Anyang Younengde Electric Co Ltd
Anyang Younengde Electric Co Ltd is a manufacturer of complete sets of induction heating equipment In 2010 a new type of energy saving series inverter electric furnace commonly known as one to two one to three electric furnace was launched In 2012 a new type of energy saving DC electric arc furnace DC submerged arc furnace DC submerged arc
Get Price
Electric Arc Furnace
Electric Arc Furnaces EAFs are a central part of the production route that is an alternative to the dominant BF BOF route EAFs are used to produce carbon steels and alloy steels primarily by recycling ferrous scrap In an EAF scrap and/or manufactured iron units such as DRI pig iron iron carbide is melted and converted into high quality steel by using high power electric arcs
Get Price
Comparison of DC electric arc furnace and traditional AC
Mar 05 2021 Compared with traditional AC electric arc furnace the main advantages of DC electric arc furnace are 1 The arc is stable and concentrated the molten pool is stirred well the temperature in the furnace is evenly distributed and the corrosion of the furnace lining is small 2 The current and voltage fluctuations are small the impact on
Get Price
Global Electric Arc Furnaces Market 2019 2023
Dec 11 2019 DC arc furnace AC arc furnace Electric Arc Furnaces Regional Outlook Revenue USD Million Americas APAC EMEA Technavio s sample reports are free of charge and contain multiple
Get PriceWhat is electric arc furnace
Oct 06 2021 It can be divided into DC electric arc furnaces and AC electric arc furnaces according to the current form leonard kzao chnzbtech 86
Get Price
Heat Treatment dc submerged arc furnace with High Power
small electric submerged electric arc furnace of ferroallo HX 1 0 T AC EAF Technical Specification A Outline The HX 1 0T equipment is three phase AC electric arc furnace the mechanical parts including the furnace body the furnace lid ring electrode lifting mechanism Cover lifting and rotating mechanism furnace tilting mechanism short net wishbone
Get Price
Melting of HBI in the DC electric arc furnace
Study into perturbations generated on the electric grid by alternating or direct current electric arc furnace Kratz M Desquilbet G Mineau L 1995 print version 578 Deviation of the arc in the direct current electric arc furnace Fouladgar J
Get Price
DIGITARC REGULATOR AND SMARTARC POWER
Aug 03 2010 Conventional wisdom on DC furnaces dictates that arc set points above 7mΩ typically lead to an unstable arc The Smart Arc logic allowed set points up to 9mΩ with no sace in arc stability
Get Price
The Electric Arc Furnace part 5 Construction The
Aug 23 2019 An electric arc furnace used for steelmaking consists of a refractory lined vessel usually water cooled in larger sizes covered with a retractable roof and through which one or more graphite electrodes enter the furnace The furnace is primarily split into three sections the hearth which consists of the refractory that lines the lower bowl
Get Price
SMS group Electric furnaces
SMS group is the leading supplier of both electric arc and submerged arc furnaces It all started when we installed the first units more than 100 years ago Electric arc furnaces are mainly used in steel production either as DC or AC types Direct Current resp Alternating Current
Get Price30kA 80V Electric Arc Furnace Transformer Rectifier
DC Electric Arc Furnace Transformer Rectifier 30kA 80V 1 troduction of DC Electric Arc Furnace Transformer Rectifier The DC Electric Arc Furnace Transformer Rectifier are used for various DC furnace where DC power supply is needed including all kinds of vacuum resistance furnace vacuum arc furnace plasma furnace etc for melting of Titanium
Get Price
14 Electric Arc Furnace ideas
Sep 20 2019We specialize in the researching designing manufacturing installing and debugging work regard to the AC DC steel making electric arc furnace ladle refinery furnace ferroalloy submerged arc furnace ferroalloy refinery furnace electro slag remelting furnace non standard metallurgical equipments See more ideas about furnace manufacturing arc
Get Price
DC arc furnaces The story of a successful South African
DC arc furnaces –an interesting past a productive present and a promising future DC arc furnaces are not a panacea for all metallurgical problems but are very well suited to a number of reductive smelting processes where they have been applied successfully in a number of industrial contexts and many further applications are expected
Get PricePower and Control Systems for Electric Arc Furnaces
Main Power Circuit for the Arc Furnace Electrical Equipment Furnace transformer for AC DC furnaces Rectifier for DC furnaces Series Reactor for AC furnaces DC Reactor for DC furnace High frequency switching type vacuum circuit breakers Mechanical and load switching life expectancy 150 000 cycles High voltage equipment and extra
Get Price
3D Numerical Analysis of the Arc Plasma Behavior in a
Apr 19 2012 A three dimensional steady state magnetohydrodynamic model is developed for the arc plasma in a DC submerged electric arc furnace for the production of fused MgO The arc is generated in a small semi enclosed space formed by the graphite electrode the molten bath and unmelted raw materials The model is first used to solve a similar problem in
Get Price
Development of the Technology of Electric Arc Furnace
May 05 2016 DC furnaces apart from their low energy and electrode consumption ensure excellent thermal and metallurgical homogenization of the liquid steel Also there is the increased stirring effect of the direct current arc that supports this process Compared to AC electric arc furnaces DC furnaces cause fewer network disturbances and hence can be
Get PriceElectric ARC Furnace Manufacture Ferroalloy Melting Expert
DC Electric ARC furnace for Casting iron/Metal refining/Fine cabon steel melting When ferro ore was reduced to sponge iron by blast furnace it must be melted by Electric Arc Furnace EAF to remove the impurities then adjust the component to your required steel So EAF can be used to produce Pure iron Fine carbon steel Casting iron Metal
Get Price
Modeling of Electric Arc Furnaces EAF with
DC Electric Arc Furnace In DC electric arc furnace the arc is generated between a single graphite electrode cathode and the bottom electrode working as an anode In traditional EAFs tapping was done by tilting the furnace whereas modern EAF are equipped with eccentric bottom tapping EBT to minimize the amount of slag
Get Price
Accurate Power Monitoring for Electric Arc Furnaces
measuring circuit The voltage signal across the arc was acquired from the bus bars and sent into a Philips 0 02 TIME s 0 04 FIgure Typical voltage and current waveforms from electric arc furnace isolation amplifier PM8940 9 The isolation amplifier has a bandwidth of dc to 1 5 MHz and a risetimes of 230 ns
Get PriceArc Melting Furnaces
Our selection of arc melting furnaces is low cost compact simple to operate and reliable yet can reach temperatures up to 3700 C and find use in a wide range of applications Arc Melting Furnaces use an electric arc to heat or melt material and are a cost saving alternative to induction or resistance heater furnaces for certain applications
Get Price
Energy saving DC twin shell arc furnace for melting low
furnace than with conventional electric furnaces This is due to the fact that the post combustion takes place in the fur nace itself and can be controlled pre cisely Table 1gives some details underlining the performance of the new twin DC arc furnace 1 Energy balance of arc furnaces Outgoing items in the energy balance
Get Price
Electric Arc Furnace EAF Blue Efficient Arc
Concept SARRALLE Blue Efficient Arc Electric Arc Furnaces are based on decades of experience providing our Customers with an innovative design and high quality manufactured equipment supported by our highly experienced technical staff SARRALLE designs and produces a complete range of AC and DC Furnaces from 6 to 300 metric tons for
Get Price
China One Ton DC Electric Arc Furnace
China One Ton DC Electric Arc Furnace Find details about China Electric Arc Furnace Eaf from One Ton DC Electric Arc FurnaceX Ing Linear Actuator Co Ltd
Get PriceWhat is produced in an electric arc furnace AC and DC
Oct 28 2020 DC electric arc furnace It is an electric arc furnace using direct current as energy source Like the AC arc furnace it USES the arc generated between the electrode and the charge or molten pool to generate heat and thus achieve the purpose of smelting Can be used to melt steel or alloy and non ferrous metals
Get Price
Direct Electric Arc Furnace Working Indirect Arc Furnace
Dc Ac Electric Arc Furnace Working Direct Electric Arc Furnace Working The diagram shows a direct electric arc furnace The chamber of the furnace is lined with refractory material The arc is struck between the electrode and the charge Three electrodes made of carbon or graphite are projected from the top of the furnace and three phase
Get Price
THE ELECTRICAL CHARACTERISTICS OF COPPER SLAGS IN
Experimental works were carried on a laboratory scale mono phase submerged direct current DC electric arc furnace with 270 kVA Computer and data acquisition systems were used to measure volt age current temperature and the precision ruler Schematic diagram of a DC arc furnace installed in one of ITU laboratories are given in Figure 2
Get Price
