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Shock waves in air suspensions of sulfide ores

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Abstract

A thermogravimetric study of oxidation of sulfide ore powders subjected to slow quasi-steady heating from 20 to 1000 °C is performed. Experiments on rapid shock wave and explosive heating of air suspensions of ore powders are carried out for modeling conditions of ore extraction in mines. Propagation of incident and reflected shock waves in air suspensions of fine-grained sulfide ores with particle sizes of 1–5 µm and volume density of 40–920 g/m3 is experimentally studied. Data on the dynamics and structure of incident and reflected shock waves are obtained for various values of the bulk density of the mixture. The changes in the weight percentage of ores are determined for samples subjected to quasi-stationary heating from 20 to 1000 °C. Shock waves were used to study the dynamic explosiveness of air suspensions of fine-grained sulfide ores. The changes in the fractions of chemical elements and compounds in ore powders after passage of shock waves are determined by X-ray diffraction analysis. It is shown that the amount of pyrrhotite in air suspensions of ore particles subjected to shock loading decreases. The fraction of sulfur in the ore samples considered in the present study is smaller than 32%; these samples are not dangerous from the explosion viewpoint.

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References

  1. PB-03-553-03: Edinye pravila bezopasnosti pri razrabotke rudnykh, nerudnykh i rossypnyh mestorozhdenie poleznyh iskopaemykh podzemnym sposobom. Utv. postanovleniem Gosgortekhnadzora RF ot 13 maya 2003 g. N 30 [Unified safety rules for the development of ore, non-metallic and gravel deposits of minerals by the underground mining method. Approved by the Russian Federation Gosgortekhnadzor Decree of May 13, N30 (2003)]

  2. Weiss, E.S., Cashdollar, K.L., Sapko, M.J., Bazala, E.M.: Secondary explosion hazards during blasting in oil shale and sulfide ore mines. Report of Investigations 9632, 55 p (1995)

  3. Yang, F., Wu, C., Li, Z.: Spontaneous combustion tendency of fresh and pre-oxidized sulfide ores. J. Cent. South Univ. 21(2), 715–719 (2014). https://doi.org/10.1007/s11771-014-1993-5

    Article  Google Scholar 

  4. Pan, W., Wu, C., Li, Z., Wu, Z.: Oxidation activity evaluation of sulfide ores based on weight gain rate fusion under different oxidation conditions. Proceedings of the 11th International Mine Ventilation Congress, pp. 991–1002 (2019). https://doi.org/10.1007/978-981-13-1420-9_85

  5. Özdeniz, A.H., Kelebek, S.: A study of self-heating characteristics of a pyrrhotite-rich sulphide ore stockpile. Int. J. Min. Sci. Technol. 23(3), 381–386 (2013). https://doi.org/10.1016/j.ijmst.2013.05.022

    Article  Google Scholar 

  6. Pinaev, A.V., Pinaev, P.A., Vasil’yev, A.A., Pruuel, E.R., Shaposhnik, Y.N.: Dynamically heated sulphide ores aerial suspension explosiveness study. Bull. Res. Center Saf. Coal Ind. 2, 45–51 (2018)

    Google Scholar 

  7. Wintenberger, E., Austin, J.M., Cooper, M., Jackson, S., Shepherd, J.E.: Analytical model for the impulse of single-cycle pulse detonation tube. J. Propul. Power 19(1), 22–38 (2003). https://doi.org/10.2514/2.6099

    Article  Google Scholar 

  8. Lyamin, G.A., Pinaev, A.V., Lebedev, A.S.: Piezoelectrics for measurement of impulsive and static pressures. Combust. Explos. Shock Waves 27(3), 355–363 (1991). https://doi.org/10.1007/BF00789671

    Article  Google Scholar 

  9. Pinaev, A.V., Lyamin, G.A.: Piezoelectrical pressure transducers, methods of calibration. Instruments and Experimental Techniques (Pribory i Tekhnika Eksperimenta) 35(2), 236–239 (1992)

    Google Scholar 

  10. Nigmatulin, R.I.: Dynamics of Multiphase Media. Hemisphere Publ. Corp , New York (1990)

    Google Scholar 

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Authors and Affiliations

  1. Lavrentyev Institute of Hydrodynamics SB RAS, Novosibirsk, Russian Federation, 630090

    A. V. Pinaev & P. A. Pinaev

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  1. A. V. Pinaev
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  2. P. A. Pinaev
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Correspondence to A. V. Pinaev.

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Communicated by D. Frost.

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Pinaev, A.V., Pinaev, P.A. Shock waves in air suspensions of sulfide ores. Shock Waves 31, 63–74 (2021). https://doi.org/10.1007/s00193-021-00997-w

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  • DOI: https://doi.org/10.1007/s00193-021-00997-w

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