Influence investigation of bulk cargo surface shape on blowing during transportation

Abstract

   The transportation of bulk cargo, especially coal, on open rolling stock, is an important component of the profit of the Holding Company JSC Railways. The problem of ensuring the safety of bulk cargo during transportation is not only commercial (shortage of cargo), but also environmental: blowing coal dust leads to pollution of the environment, soil, ballast and other railway infrastructure facilities, which worsens the normal operation of automation devices at stages and stations, therefore, negatively affects the safety of trains and shunting works.
   The article is aimed on present condition consideration of bulky goods blowing-out, more specifically of coal. Results of empirical experiences transportation of coal, as well as current operations to reduce coal losses due to blow-out are carried out. Requirements of normative documents about bulky goods preparation for transportation and its surface form in car are studied. Deficient elaboration of theoretic base of coal blowing-out problem solution in current transportation conditions is investigated, as well as ways to develop the base are determined according to derived assessment of enable forms of freight surface on intensity of its blowing-out, also according to recognition of physical and mechanical properties of coal, which specify surface form of coal after its loading.
   The practical significance of the work performed lies in the possibility of using the results of the study to solve practical problems by coal shippers to improve measures to prepare cargo for transportation. The proposed methodological recommendations for reducing coal shippers from blowing will minimize the costs of consignees for the purchase of an additional volume of cargo (including blowing), rent or purchase of an additional number of wagons for its transportation, as well as the possible costs associated with compensation for damage from environmental pollution of coal dust.