Abstract
	The term logistics in technical practice is interpreted in various ways, by means of various definitions especially definitions of some optimization criteria. We talk about logistics of specific technical fields related to their general technical and economical optimization in a broader sense. Optimization is focused mostly on the study of transport routes of materials, information, energy and financial flows. The emerging technical field of logistics of bulk solids uses similar terms as other fields.
	This paper formulates optimization criterion for a selection of an optimum conveyer with respect to mechanical and physical properties of specific transported bulk material or by means adjusting its mechanical and physical properties expressed via the angle of internal friction. Additional topic here is adjusting mechanical and physical parameters of bulk material to achieve an optimum consumption of energy in this process.