Reduction of Irradiation Level for Personnel Working in a Steel Furnace Using NMG Method
International Journal of Science, Technology and Society
Volume 5, Issue 4, July 2017, Pages: 87-90
Received: Oct. 21, 2016; Accepted: Dec. 5, 2016; Published: Jun. 23, 2017
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Authors
Constantin Gheorghies, Chemistry, Physics and Environment Department, Dunarea de Jos University, Galati, Romania
Simona Condurache-Bota, Chemistry, Physics and Environment Department, Dunarea de Jos University, Galati, Romania
Geta Carac, Chemistry, Physics and Environment Department, Dunarea de Jos University, Galati, Romania
Paula Cojocaru, Politenico di Milano, Dip. Chimica, Milano, Italy
Lucian Puiu Georgescu, Chemistry, Physics and Environment Department, Dunarea de Jos University, Galati, Romania
Catalina Iticescu, Chemistry, Physics and Environment Department, Dunarea de Jos University, Galati, Romania
Anotoaneta Ene, Chemistry, Physics and Environment Department, Dunarea de Jos University, Galati, Romania
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Abstract
The humidity of coke introduced into furnace used for preparation of cast-iron plays an important role in development of metallurgical processes. More that its importance results from the necessity to optimization of the energy consumption in the furnace. Therefore, the quick, precise, and in situ measurement of the humidity of coke is necessary and a decisive process in cast-iron preparation. In this aim, the nuclear moisture gauge (NMG) method is successfully used. Two main issues appear in this case. First of them concerns to the NMG calibration and second refers to get rigorous results. The last aspect is linked of the corrections have to be made for the density measurements of coke, during performing of a NMG measurements occurring into continuous flow. During humidity measurements it is necessary to take into consideration of the irradiation level of the workers performing calibration and moisture measurements implied by the NMG. The paper reveals and discusses the results concerning the use of the NMG technique without automatic density correction as compared to the NMG technique which users the automatic density corrections. The humidity of coke used in furnaces was monitored for several months by using both techniques and their results are compared. The linear dependence between the NMG indications and coke humidity is not influenced of the coke granulation. It is concluded that the NMG without automatic density correction gives as good results as the more complicated, much more expensive and, mainly, more radiation exposing of workers NMG method with automatic density correction.
Keywords
Coke, Moisture, Neutrons, Gamma Ray, Radioprotection
To cite this article
Constantin Gheorghies, Simona Condurache-Bota, Geta Carac, Paula Cojocaru, Lucian Puiu Georgescu, Catalina Iticescu, Anotoaneta Ene, Reduction of Irradiation Level for Personnel Working in a Steel Furnace Using NMG Method, International Journal of Science, Technology and Society. Vol. 5, No. 4, 2017, pp. 87-90. doi: 10.11648/j.ijsts.20170504.15
Copyright
Copyright © 2017 Authors retain the copyright of this article.
This article is an open access article distributed under the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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