Power consumed by a crusher rotor in overcoming atmospheric drag

Experimental Studies of the Process of Crushing Coal Charge on Hammer Mill with the View of Introducing Technologies and Products 4.0 at the Industrial Enterprises

“…Advances in Economics, Business and Management Research, volume 129 Figure 3 Integral characteristic particle size distribution of coal charge after crushing at different the effectiveness of the snapping finished grade 0-3 mm: a -for the diameter of the rotor 150 mm; b -for rotor diameter 200 mm; c -for a rotor diameter of 250 mm; 1 -screening efficiency of 50 % without lattice; 1' -the effectiveness of screening 50 % with lattice; 2 -efficiency screening 100 % without lattice; 2' -screening efficiency 100% with lattice , (5) According to [9], the results of experiments were excluded as uncharacteristic if the measured value was such that .…”

“…Therefore, the work aimed at studying the granulometric composition effect of the coal charge, its physical and mechanical properties on the energy-strength parameters of hammer mills, contributing to the reduction of energy consumption, is an urgent task. In [7][8][9][10], theoretical dependences were obtained of the power expended determination on crushing the coal charge and on overcoming the resistance to rotation of the hammer mill's rotor from a dusty coal medium, however, experimental studies confirming the adequacy of the results obtained were not carried out. So, the purpose of this work was to carry out experimental studies that would allow us to verify the adequacy of the dependences obtained.…”