Enhancement of the Explosive Energy Utilization with the Application of New Stemming Contrivance
M. Sazid1, M. R. Saharan2, T. N. Singh3
1M. Sazid, Assistant Professor, Mining Engineering Department, King Abdulaziz University, Jeddah, Kingdom of Saudi Arabia.
2M.R. Saharan, Senior Principal Scientist, Central Institute of Mining & Fuel Research, Nagpur, India.
3T.N. Singh, Department of Earth Sciences, Indian Institute of Technology, Bombay, Mumbai, India.
Manuscript received on December 17, 2015. | Revised Manuscript received on December 28, 2015. | Manuscript published on January 15, 2016. | PP: 1-5 | Volume-4 Issue-2, January 2016. | Retrieval Number: B0955014215/2016©BEIESP
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© The Authors. Published By: Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: The effect of confinement on explosive energy utilization in rock blasting was studied by using a new stemming contrivance named SPARSH .To achieve the objectives an experiment blast was carried out using SPARSH. The experiment blast was analysed by high speed video camera. Post blast observations were also conducted to identify the blast results. Results were compared with the conventional stemming applying drill cuttings as stemming material for a part of the experimental blast. It was noticed that application of SPARSH results into increase in the explosive energy retention time, reduce ejection velocity and stemming ejection height. The combined effect of the higher retention time, the reduced stemming ejection height and the lower stemming ejection velocity manifests into a larger component of the explosive energy available for rock breakage which assists into safer economical ore liberation process.
Keywords: Stemming contrivance, explosive energy utilisation, energy retention time, stemming ejection velocity, stemming ejection height, high speed imaging.