scholarly journals Catalytic extraction processing of contaminated scrap metal

10.2172/28231 ◽  
1994 ◽  
Author(s):  
T.P. Griffin ◽  
J.E. Johnston
Keyword(s):  
Scrap Metal ◽  
Catalytic Extraction

scholarly journals Catalytic extraction processing of contaminated scrap metal

1995 ◽  
Author(s):  
T.P. Griffin ◽  
J.E. Johnston ◽  
B.M. Payea ◽  
B.M. Zeitoon
Keyword(s):  
Scrap Metal ◽  
Catalytic Extraction

Drying and heating of scrap metal at steelmaking: industrial safety, economics, ecology

2020 ◽  
Vol 76 (12) ◽  
pp. 1353-1258
Author(s):  
V. A. Spirin ◽  
V. E. Nikol’skii ◽  
D. V. Vokhmintsev ◽  
A. A. Moiseev ◽  
P. G. Smirnov ◽  
...  
Keyword(s):  
Energy Efficiency ◽  
High Efficiency ◽  
Steel Production ◽  
Scrap Metal ◽  
Industrial Safety ◽  
Technical Solution ◽  
Metal Charge ◽  
Basic Task ◽  
Scrap Heating ◽  
Winter Time

At steel production based on scrap metal utilization, the scrap heating before charging into a melting facility is an important way of energy efficiency increase and ecological parameters improving. In winter time scrap metal charging with ice inclusions into a metal melt can result in a considerable damage of equipment and even accidents. Therefore, scrap preliminary drying is necessary to provide industrial safety. It was shown, that in countries with warm and low-snow climate with no risk of scrap metal icing up during its transportation and storing in the open air, the basic task being solved at the scrap drying is an increase of energy efficiency of steelmaking. InRussiathe scrap metal drying first of all provides the safety of the process and next - energy saving. Existing technologies of scrap metal drying and heating considered, as well as advantages and drawbacks of technical solutions used at Russian steel plants. In winter time during scrap metal heating at conveyers (Consteel process) hot gases penetrate not effectively into its mass, the heat is not enough for evaporation of wetness in the metal charge. At scrap heating by the furnace gases, a problem of dioxines emissions elimination arises. Application of shaft heaters results in high efficiency of scrap heating. However, under conditions of Russian winter the upper scrap layers are not always heated higher 0 °С and after getting into a furnace bath the upper scrap layers cause periodical vapor explosions. The shaft heaters create optimal conditions for dioxines formation, which emit into atmosphere. It was shown, that accounting Russian economic and nature conditions, the metal charge drying and heating in modified charging buckets by the heat of burnt natural gas or other additional fuel is optimal. The proposed technical solution enables to burnt off organic impurities ecologically safely, to melt down ice, to evaporate the wetness in the scrap as well as to heat the charge as enough as the charging logistics enables it. The method was implemented at several Russian steel plants. Technical and economical indices of scrap metal drying in buckets under conditions of EAF-based shop, containing two furnaces ДСП-100, presented.

254. Exposure to Metal Fumes During Scrap Metal Recycling

2005 ◽  
Author(s):  
M. Rodriguez
Keyword(s):  
Scrap Metal ◽  
Metal Recycling

scholarly journals Scrap Metal Reduction as the Effect of Combustor Upgrade in GTG 1.3 PLTGU Muara Karang

2021 ◽  
Vol 1096 (1) ◽  
pp. 012091
Author(s):  
F Leilan ◽  
T Revina ◽  
I Dimassetya ◽  
A Rahmanissa
Keyword(s):  
Scrap Metal ◽  
Metal Reduction

Allied High Commission for Germany

1951 ◽  
Vol 5 (4) ◽  
pp. 825-832
Keyword(s):  
United States ◽  
North Atlantic ◽  
Foreign Minister ◽  
The United States ◽  
Scrap Metal ◽  
German Federal Republic ◽  
The North ◽  
The United Kingdom ◽  
The North Atlantic ◽  
Contractual Agreements

With the development of certain administrative frictions (concerning coal quotas, occupation costs, and the scrap metal treaty) between the western occupying powers and the German Federal Republic, early indications were that if the talk of “contractual agreements” did materialize it would reserve, for the occupying powers, wide controls over important areas of west Germany's internal and external affairs. In Washington, however, a general modification of approach was noted during the September discussions between the United States Secretary of State (Acheson), the United Kingdom Foreign Secretary (Morrison), and the French Foreign Minister (Schuman), preparatory to the Ottawa meetings of the North Atlantic Council.

Optimization of a system for the radiation monitoring of incoming scrap metal

Metallurgist ◽  
2011 ◽  
Vol 55 (5-6) ◽  
pp. 328-334
Author(s):  
N. P. Valuev ◽  
O. V. Lysova ◽  
N. V. Nikonenkov
Keyword(s):  
Scrap Metal ◽  
Radiation Monitoring

Managing Potentially Radioactive Scrap Metal (NCRP Report No 141)

2003 ◽  
Vol 85 (6) ◽  
pp. 760-761
Author(s):  
Larry W. Luckett
Keyword(s):  
Scrap Metal ◽  
Radioactive Scrap Metal

Efficient control and disposal of swarf and scrap metal

1940 ◽  
Vol 19 (12) ◽  
pp. 476
Author(s):  
D.F. Galloway
Keyword(s):  
Scrap Metal ◽  
Efficient Control

Radioactive Tracer Test to Develop a Recycling System for Operating Reactor Scrap Metal

1994 ◽  
Vol 353 ◽  
Author(s):  
A. Umemura ◽  
K. Kimura ◽  
K. Takahashi ◽  
D. Sakurai ◽  
M. Yamamoto ◽  
...  
Keyword(s):  
Radioactive Tracer ◽  
Tracer Test ◽  
Scrap Metal ◽  
Time Dependent ◽  
Dose Equivalent ◽  
Radioactive Dust ◽  
Homogeneous Dose ◽  
Metal Products ◽  
Operating Reactor ◽  
Shielding Material

AbstractA demonstration test using radio-isotope(RI) tracers during the manufacturing of inner drum shielding material from the recycling of operating reactor scrap metal was completed and the following results were obtained. The behaviour of five radionuclides (Mn-54. Co-60. Zn-65. Sr-85 and Cs-137) was established. The time-dependent behaviors of the radionuclides in molten steel and in slag were investigated. The radioactivity distributions in metal products were homogeneous. Dose equivalent rates in the working area were below background levels and radioactive dust concentrations in the air were below detection limits.

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