"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki ISSN 1684-1719, N 2, 2019

contents of issue      DOI  10.30898/1684-1719.2019.2.4     full text in Russian (pdf)  

About a possible development of an “explosive” massive hard rocks-dielectrics destruction technology, based on a directed concentrated electromagnetic microwave power flux

 

L. M. Blinov 1, A. P. Gerasimenko 2, Yu. V. Gulyaev 1, A. V. Dolgolaptev 3, V. A. Cherepenin 1

1 Kotelnikov Institute of Radioengineering and Electronics of Russian Academy of Sciences, Mokhovaya 11-7, Moscow 125009, Russia

2 Academiñian Mints Radio Engineering Institute, 8 Marta str., 10-1, Moscow 127083, Russia

3 National Scientific Center for Mining Production - A.A.Skochinsky Institute of Mining, Oktyabrskiy prosp., 411, Lubertsy Moscow region 140004, Russia

 

The paper is received on February 1, 2019

 

Abstract. Many different electrical and dielectrical characteristics of hard rock materials (as granites, sandstones, e t. c.) are presented here. The microwave region of electromagnetic wavelengths (1,0 ÷ 20 cm) was in the spotlight, because the main goal of authors was the maximum effective influence on these materials by this electromagnetic field to achieve a maximal destroying in available power level 50 kW.  Different methods and arrangements are proposed here to concentrate and inject microwave power in massive hard rocks. To avoid an unwanted microwave breakdown in high electromagnetic power level, mechanical power addition from two or more sources of lower electromagnetic power, is proposed and confirmed experimentally. Also, a microwave power transport through a plasma channel by surface wave is proposed and accompanied by necessary calculations. Experimental equipment, having a microwave power 50 kW, is described. It has a metallic ellipsoidal reflector, which reflects microwave power from quasi-point source, located in neighbor focus of ellipsoid, into another focus. In this focus, probing the massive hard rocks, very high power concentration is achieved; it causes a destruction and disaggregation of the material. The main new approval of this work is the existing of some “explosive” mechanism of destroying, which is very intensive and occurs when some phase transformation happens in the material under the influence of intensive microwave field, and in the same time some active temporal change of the field occurs. The result can exceed the expected many times. All conclusions, however, are now qualitative in nature and demand the careful experimental check and study. In the final part of the work authors propose their opinion about prospects of method and compare it with other known methods. Their conclusions are very optimistic and encouraging.

Key words: destroying  of  hard rocks – dielectrics;   destroying and disaggregation of hard rock mass; high power microwave field; focused microwave power;   “explosive” effect of a destroying.

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For citation:

L. M. Blinov, A. P. Gerasimenko, Yu. V. Gulyaev, A. V. Dolgolaptev, V. A. Cherepenin. About a possible development of an “explosive” massive hard rocks-dielectrics destruction technology, based on a directed concentrated electromagnetic microwave power flux. Zhurnal Radioelektroniki - Journal of Radio Electronics. 2019. No. 2. Available at http://jre.cplire.ru/jre/feb19/4/text.pdf

DOI  10.30898/1684-1719.2019.2.4