Results 231 to 240 of about 72,624 (284)

Hydrothermal treatment of electric arc furnace dust

Journal of Hazardous Materials, 2011
In this study, ZnO crystals were fabricated from electric arc furnace dust (EAFD) after alkaline leaching, purification and hydrothermal treatment. The effects of temperature, duration, pH, and solid/liquid ratio on ZnO crystal morphology and size were investigated. Results show a high reaction temperature capable of accelerating the dissolution of ZnO
Bing-Sheng, Yu, Yuh-Ruey, Wang, Tien-Chin, Chang   +2 more
openaire   +2 more sources

Structural ceramics containing electric arc furnace dust

Journal of Hazardous Materials, 2013
In the present work the stabilization of electric arc furnace dust EAFD waste in structural clay ceramics was investigated. EAFD was collected over eleven production days. The collected waste was characterized for its chemical composition by Flame Atomic Absorption Spectroscopy.
V N, Stathopoulos, A, Papandreou, D, Kanellopoulou, C J, Stournaras   +3 more
openaire   +2 more sources

Electric arc furnace model in distribution systems

2014 IEEE Industry Application Society Annual Meeting, 2014
This paper presents a new technique to characterize electrical arc furnaces through the measurement of electric power, stationary and transient states, and the imbalance of these systems. The nonstationary behavior of the voltage and current signals in electric arc furnaces is considered, and analysis techniques of power quality in the time domain are ...
Eduardo A. Cano-Plata, Armando J. Ustariz Farfan, Oscar J. Soto Marin   +2 more
openaire   +1 more source

Electric Arc Furnaces

1989
The tapping of electric furnaces is a hot, physically demanding, and potentially dangerous job. Noise levels often exceed the OSHA limits. To improve the work environment as well as improve productivity, several electric furnaces in Japan worked together with the Tokyo Institute of Technology to develop remote controlled manipulators for tapping.
openaire   +1 more source

The 3-phase electric arc furnace

Electrical Engineering, 1933
The 3-phase electric arc furnace has established itself definitely as an important industrial unit in the production of ferrous materials. With the efficiency of the arc furnace being increased, and with the overall cost of installation and operation now being comparable with that of an equivalent open hearth, an even more extensive application is ...
openaire   +1 more source

Carburizer process in electric arc furnaces

Russian Metallurgy (Metally), 2015
The behavior of coke and carbon in heating and melting of steel scrap is considered. The efficiency of carbon assimilation in the period of metal melting is estimated for various versions of introduction of a lump carbon-containing material into an EAF charge. The use of a carbon-containing material as an alternative heat source in EAF is analyzed.
V. P. Karasev, G. V. Babichevskii, Ya. Yu. Prokopenko   +2 more
openaire   +1 more source

Electric Arc Furnace Melting

2008
Abstract This article focuses on the construction, operation of electric arc furnaces (EAF), and their auxiliary equipment in the steel foundry industry. It provides information on the power supply of EAF and discusses the components of the EAF, including the roof, furnace shell, spout and tap hole, water-cooling system, preheat and ...
openaire   +1 more source

Adjusting characteristics of electric arc furnaces

Russian Metallurgy (Metally), 2017
The dependences of the electric and electrotechnological parameters of electric arc furnaces on the arc length in different heat periods are considered.
Yu. M. Mironov, A. N. Mironova, D. G. Mikhadarov   +2 more
openaire   +1 more source

Valorization of Electrical Arc Furnace Oxidizing Slag

2014
Valorization of the electrical arc furnace oxidizing slag by coke was carried out by the reduction of iron oxide in the slag. Since the reduction of iron oxide by solid carbon is an endothermic reaction, supply of heat energy is required. In addition, slag has a low thermal conductivity; traditional fuel injection is not suitable for this reaction ...
Joonho Lee, Sung Beom An, Minsoo Shin, Ki Joo Sim   +3 more
openaire   +1 more source

Overcurrent Protection in Electric Arc Furnaces

IEEE Transactions on Industry Applications, 2019
This article proposes a new adaptive protection setting methodology for steel manufacturers, aiming to reduce miscoordination between main feeders and current consumptions due to fault clearance or high load disconnection. By detecting abrupt changes in current consumption, the computation of different protection settings may be achieved.
S. Arias-Guzman, A. J. Ustariz-Farfan, E. A. Cano-Plata   +2 more
openaire   +1 more source