Coal dust emissions: From environmental control to risk minimization by underground transport. An applicative case-study

a b s t r a c t Coal dust emission from open coal storage parks and handling plants can represent a significant part of the overall atmospheric emission contribution in different industrial activities, such as power stations or coke production plants. The emissions are strictly connected to technical characteristics of the handling system, chemico-physical properties of coal and environmental conditions. In this paper, we present a full-scale operational solution to the problem of limiting coal dust emissions during transportation from the harbor site to the final utilization plant. To this end, a simple mathematical framework is developed in order to evaluate explosion risk inside the enclosure and set-up proper technical and managerial layers of protection suitable to minimize the risk.

[1]  Laurent Perrin,et al.  State of the Art: Promotion of Early Inherently Safer Design Against Dust Explosions , 2010 .

[2]  Arthur E. Cote,et al.  Fire Protection Handbook , 1991 .

[3]  Trevor Kletz.  The unforeseen side‐effects of improving the environment , 1993 .

[4]  Bruno Fabiano,et al.  From laboratory simulation to scale-up and design of spray barriers mitigating toxic gaseous releases , 2009 .

[5]  M. Pegg,et al.  Factors influencing the suppression of coal dust explosions , 1997 .

[6]  G.Th. Visser.  A wind-tunnel study of the dust emissions from the continuous dumping of coal , 1992 .

[7]  Tasneem Abbasi,et al.  Dust explosions-cases, causes, consequences, and control. , 2007, Journal of hazardous materials.

[8]  Bruno Fabiano,et al.  From a survey on accidents in the downstream oil industry to the development of a detailed near-miss reporting system , 2012 .

[9]  M. Pegg,et al.  A comparison of experimental methods to determine the minimum explosible concentration of dusts , 1996 .

[10]  Jean-Luc Harion,et al.  Numerical modeling of flow structures over various flat-topped stockpiles height: Implications on dust emissions , 2009 .

[11]  Masaharu Nifuku,et al.  Recent development of standardization of testing methods for dust explosion in Japan , 2000 .

[12]  Hans J. Pasman,et al.  A review of explosion prevention and protection systems suitable as ultimate layer of protection in chemical process installations , 2005 .

[13]  M. J. Sapko,et al.  Coal dust particle size survey of US mines , 2007 .

[14]  Faisal Khan,et al.  Application of inherent safety principles to dust explosion prevention and mitigation , 2009 .

[15]  Akeel A. Shah,et al.  The Ignition of low-exothermicity solids by local heating , 2004 .

[16]  Yu-min Chang,et al.  Study on Short-Term Prevention Efficiencies of Chemical Binders to Reduce Fugitive Dust , 2003 .

[17]  Stanley S. Grossel.  Safety considerations in conveying of bulk solids and powders , 1988 .

[18]  Mrinal K. Ghose.  Emission factors for the quantification of dust in Indian coal mines , 2004 .

[19]  P.P.A. Smit.  Dust concentrations around coal stockpiles , 1980 .

[20]  Attilio Converti,et al.  Reduction of the environmental impact of coal storage piles: A wind tunnel study , 1990 .