Manufacture, Properties, and Installation of X80 (550 MPa) Gas Transmission Linepipe

1996 ◽  
Author(s):  
M. Milos Kostic
Keyword(s):  
Large Scale ◽  
Chemical Elements ◽  
Commercial Production ◽  
Electric Arc ◽  
Mechanical Processing ◽  
Arc Furnace ◽  
Electric Steel ◽  
Steel Making ◽  
Pipe Manufacture ◽  
Made In

Steel for a large-scale commercial production of X80 (550 MPa) gas transmission linepipe was made in a scrap-based, electric arc furnace shop. Thermo-mechanical processing of skelp was completed in a Steckel mill. Successful pipe manufacture (1219 mm OD, 12.0 mm WT) and efficient field construction demonstrated that suitable steel making and processing controls can eliminate potential detrimental effects of residual chemical elements in electric steel.

scholarly journals Mathematical Modeling of Iron and Steel Making Processes. Modeling of a DC Electric Arc Furnace. Mixing in the Bath.

2001 ◽  
Vol 41 (10) ◽  
pp. 1146-1155 ◽  
Author(s):  
Marco Ramírez ◽  
Jonas Alexis ◽  
Gerardo Trapaga ◽  
Par Jönsson ◽  
John Mckelliget
Keyword(s):  
Mathematical Modeling ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Iron And Steel ◽  
Steel Making

Processing and Recycling Experiments of Dust from Electric Arc Furnace

2011 ◽  
Vol 378-379 ◽  
pp. 719-722 ◽  
Author(s):  
Zorica Bacinschi ◽  
Cristiana Zizi Rizescu ◽  
Elena Valentina Stoian ◽  
Dan Nicolae Ungureanu ◽  
Aurora Anca Poinescu ◽  
...  
Keyword(s):  
Steel Production ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Raw Material ◽  
Arc Furnace ◽  
Leaching Test ◽  
Fine Grained ◽  
Steel Making ◽  
Fine Grained Material ◽  
The Impact

The processing and recycling experiments of dust from Electric Arc Furnace (EAF) in industrial conditions aimed at highlighting the minimizing possibility of this waste by transforming it into a by-product that can represent either a secondary raw material for steel making in EAF or to recover iron, zinc and lead (the Waltz process). Electric-arc furnace dust (EAFD) is a by-product of steel production and recycling. This fine-grained material contains high amounts of zinc and iron as well as significant amounts of potentially toxic elements such as lead, cadmium and chromium. Therefore, the treatment and stabilization of this industrial residue is necessary. Leaching test is a method of evaluating the impact of waste that is stored (soil, water table).

Monitoring of 137Cs in electric arc furnace steel making process

2010 ◽  
Vol 284 (3) ◽  
pp. 615-622 ◽  
Author(s):  
Tahir Sofilić ◽  
Delko Barišić ◽  
Una Sofilić
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Steel Making ◽  
Furnace Steel

scholarly journals Minimizing Energy Cost in Electric Arc Furnace Steel Making by Optimal Control Designs

2014 ◽  
Vol 2014 ◽  
pp. 1-9 ◽  
Author(s):  
Er-wei Bai
Keyword(s):  
Optimal Control ◽  
Production Cost ◽  
Control Design ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Feedback Form ◽  
Steel Making ◽  
Furnace Steel ◽  
Control Designs

Production cost in steel industry is a challenge issue and energy optimization is an important part. This paper proposes an optimal control design aiming at minimizing the production cost of the electric arc furnace steel making. In particular, it is shown that with the structure of an electric arc furnace, the production cost which is a linear programming problem can be solved by the tools of linear quadratic regulation control design that not only provides an optimal solution but also is in a feedback form. Modeling and control designs are validated by the actual production data sets.

TECHNOLOGY PERFECTION OF Р6М5 STEEL-MAKING IN ELECTRIC ARC FURNACE

2019 ◽  
Vol 0 (9) ◽  
pp. 12-19
Author(s):  
S.I. Gertsyk ◽  
◽  
M.R. Korolev ◽  
E.V. Shilnikov ◽  
◽  
...  
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Furnace Operation ◽  
Specific Consumption ◽  
Arc Furnace ◽  
Steel Making

A technology of Р6М5 steel-making by the method of remelting with oxygen blowing in electric arc furnace of capacity 20 t has been examined. To improve technical and economic characteristics of the furnace operation for a series of experimental-industrial melts a number of measures was proven. The measures resulted in a decrease in melt time, a reduction of melting loss and specific consumption of energy and oxygen.

scholarly journals Removal of Heavy Metals from Steel Making Waste Water by Using Electric Arc Furnace Slag

2012 ◽  
Vol 9 (4) ◽  
pp. 2557-2564 ◽  
Author(s):  
C. L. Beh ◽  
T. G. Chuah ◽  
M. N. Nourouzi ◽  
T. Choong
Keyword(s):  
Heavy Metals ◽  
Fixed Bed ◽  
Oxygen Demand ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Fixed Bed Column ◽  
Steel Making ◽  
Electric Arc Furnace Slag ◽  
Furnace Slag

This work investigated the reduction of chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS) and the concentration of heavy metals of wastewater from a steel making plant. Adsorption experiments were carried out by electric arc furnace slag (EAFS) in a fixed-bed column mode. The raw wastewater did not meet the standard B limitations, having high values of BOD, COD, TSS, Iron, Zinc, Manganese and Copper. After passing through the fixed bed column, BOD, COD and TSS values decreased to 1.6, 6.3 and <2 mgL-1, respectively while the concentration of Iron, Zinc, Manganese and Copper were 0.08, 0.01, 0.03 and 0.07 mgL-1, respectively. The results confirmed that EAFS can be used as an efficient adsorbent for producing treated water that comply with the Standard B limitations for an industrial effluent.

scholarly journals Investigation on the Chemical and Thermal Behavior of Recycling Agglomerates from EAF by-Products

2020 ◽  
Vol 10 (22) ◽  
pp. 8309
Author(s):  
Thomas Willms ◽  
Thomas Echterhof ◽  
Stefan Steinlechner ◽  
Matti Aula ◽  
Ahmed Abdelrahim ◽  
...  
Keyword(s):  
Thermal Behavior ◽  
Raw Materials ◽  
Central Element ◽  
Steel Production ◽  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Electric Steel ◽  
Crude Steel ◽  
By Products

In addition to the blast furnace converter route, electric steel production in the electric arc furnace (EAF) is one of the two main production routes for crude steel. In 2019, the global share of crude steel produced via the electric steel route was 28%, which in numbers is 517 million metric tons of crude steel. The production and processing of steel leads to the output of a variety of by-products, such as dusts, fines, sludges and scales. At the moment, 10–67% of these by-products are landfilled and not recycled. These by-products contain metal oxides and minerals including iron oxide, zinc oxide, magnesia or alumina. Apart from the wasted valuable materials, the restriction of landfill space and stricter environmental laws are additional motivations to avoid landfill. The aim of the Fines2EAF project, funded by the European Research Fund for Coal and Steel, is to develop a low-cost and flexible solution for the recycling of fines, dusts, slags and scales from electric steel production. During this project, an easy, on-site solution for the agglomeration of fine by-products from steel production has to be developed from lab scale to pilot production for industrial tests in steel plants. The solution is based on the stamp press as the central element of the agglomeration process. The stamp press provides the benefit of being easily adapted to different raw materials and different pressing parameters, such as pressing-force and -speed, or mold geometry. Further benefits are that the stamp press process requires less binding material than the pelletizing process, and that no drying process is required as is the case with the pelletizing process. Before advancing the agglomeration of by-products via stamp press to an industrial scale, different material recipes are produced in lab-scale experiments and the finished agglomerates are tested for their use as secondary raw materials in the EAF. Therefore, the tests focus on the chemical and thermal behavior of the agglomerates. Chemical behavior, volatilization and reduction behavior of the agglomerates were investigated by differential thermogravimetric analysis combined with mass spectroscopy (TGA-MS). In addition, two melts with different agglomerates are carried out in a technical-scale electric arc furnace to increase the sample size.

Prioritisation of flexibility enablers using AHP in steel making via electric arc furnace

2017 ◽  
Vol 10 (4) ◽  
pp. 524 ◽  
Author(s):  
Rohit Kumar Singh ◽  
Arun Goyal ◽  
Aditya Bhagwat ◽  
Vandana Sonwaney
Keyword(s):  
Electric Arc Furnace ◽  
Electric Arc ◽  
Arc Furnace ◽  
Steel Making
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