• 1. Due to the great desire to understand the principle of operation of any transport or other mechanical device used in mining enterprises and bring the calculation to a full level, the research of the surfaces of friction nodes and the processes in the recesses created by them and the critical analysis of the obtained results.
• 2. For any (dry, boundary, elasto-hydrodynamic) conditions of the friction process, in the annular view of the contact surfaces, the study of the possibility of obtaining the adhesion coefficient and, if necessary, adjusting it to the desired value and maintaining it for a certain time, in order to specify the arcs of "relative calmness" and "elastic sliding" The values of quantities and the probability of their existence under the conditions of friction in a vacuum, according to the well-known theory of Petrov-Zhukovsky.
• 3. Belt conveyor single-drum drive - as a powerful belt bearing with a vacuum-drum drive and comparing its traction factor and traction properties with the traction forces and traction factor of existing single and multi-drum belt conveyors equipped with special drives.
• 4. Analysis and calculation of the technical and economic effect obtained by perfecting the conveyor stand and its component nodes and elements, using its own traction factor drives.