Application of Silicon Dioxide as the Inert Component or Oxide Component Enhancer in ANFO

Andrzej Biessikirski, Krzysztof Barański, Mateusz Pytlik, Łukasz Kuterasiński, Jolanta Biegańska and Konrad Słowiński
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Andrzej Biessikirski: Faculty of Mining and Geoengineering, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
Krzysztof Barański: Faculty of Mining and Geoengineering, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
Mateusz Pytlik: Conformity Assessment Body, Central Mining Institute, Plac Gwarków 1, 40-166 Katowice, Poland
Łukasz Kuterasiński: Jerzy Haber Institute of Catalysis and Surface Chemistry, Polish Academy of Sciences, ul. Niezapominajek 8, 30-239 Kraków, Poland
Jolanta Biegańska: Faculty of Mining and Geoengineering, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland
Konrad Słowiński: Faculty of Mining and Geoengineering, AGH University of Science and Technology, Al. Mickiewicza 30, 30-059 Kraków, Poland

Energies, 2021, vol. 14, issue 8, 1-12

Abstract: Non-ideal explosives with differing contents of silicon dioxide (silica or dioxosilane) added in the form of powder and gel were tested. Measurements of structure, crystallinity and morphology were performed by means of infrared spectroscopy (IR), X-ray diffraction (XRD) and scanning electron microscopy (SEM). IR and XRD analysis revealed a lack of SiO 2 influence on the non-ideal explosive structure. SEM analysis indicated that all the surface deformations of ammonium nitrate(V) prill were filled by a thin fuel film layer on which SiO 2 was present. The additional calculations of selected theoretical properties of non-ideal compositions were made using ZMWCyw software. Based on this, it was established that the optimum semimetal content was 1.0 wt.%. Blasting tests confirmed that the addition of 1.0 wt.% SiO 2 to the Ammonium Nitrate Fuel Oil (ANFO) resulted in the lowest volume of post-blast fumes. Moreover, it was established that finer SiO 2 powder cannot be used as the oxide component enhancer due to the inhibition of detonation reaction. SiO 2 should be used only as an inert component.

Keywords: ANFO; silicon dioxide; post-blast fumes; velocity of detonation (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2021
References: View complete reference list from CitEc
Citations: View citations in EconPapers (5)

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