The Influence of Time on the Density and Detonation Velocity of Bulk Emulsion Explosives – a Case Study from Polish Copper Mines

• Autorzy: Mertuszka Piotr , Fuławka Krzysztof , Pytlik Mateusz , Wincenciak Jarosław , Wawryszewicz Andrzej

Identyfikatory

DOI

10.22211/cejem/109839

• Języki publikacji: EN

Abstrakty

EN

The basic method for emulsion matrix sensitisation is chemical reduction of the density by producing in situ gas bubbles. The mixing of the components takes place directly inside the loading hose, which is equipped with a mixing device. Due to the multi-component nature of the mixture, the precise dosing of individual components has a key influence on the detonation behaviour of the final product. Unfortunately, keeping the mixing and charging of UG mobile units in good working condition in underground mines is a considerable challenge. As a result, completely different detonation parameters may be observed when charging the same explosive into blast holes using two different units. The aim of the present study was to determine the behaviour of the mechanically loaded emulsion explosives used in Polish underground copper mines by tracking the changes in the density and detonation velocity over time. Samples of the explosives were collected from selected mobile units. In addition, the influence of the quantity of the sensitising agent on the changes in the emulsion density and VOD was studied.

Słowa kluczowe

EN

blasting; emulsion explosives; VOD; density measurements; chemical gassing

• Wydawca: Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
• Czasopismo: Central European Journal of Energetic Materials
• Rocznik: 2019
• Tom: Vol. 16, no. 2
• Strony: 245--258
• Opis fizyczny: Bibliogr. 20 poz., rys.

Twórcy

autor

Mertuszka Piotr

• KGHM Cuprum Ltd. Research and Development Centre, 2-8 Sikorskiego Street, 53-659 Wrocław, Poland

autor

Fuławka Krzysztof

• KGHM Cuprum Ltd. Research and Development Centre, 2-8 Sikorskiego Street, 53-659 Wrocław, Poland

autor

Pytlik Mateusz

• Central Mining Institute, 1 Gwarków Square, 40-166 Katowice, Poland

autor

Wincenciak Jarosław

• KGHM Polska Miedź S.A., Polkowice-Sieroszowice Mine, 100 Kaźmierzów, 59-101 Polkowice, Poland

autor

Wawryszewicz Andrzej

• KGHM Polska Miedź S.A., Polkowice-Sieroszowice Mine, 100 Kaźmierzów, 59-101 Polkowice, Poland

Bibliografia

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Uwagi

Opracowanie rekordu ze środków MNiSW, umowa Nr 461252 w ramach programu "Społeczna odpowiedzialność nauki" - moduł: Popularyzacja nauki i promocja sportu (2020).