DETERMINATION OF ENERGY CONSUMPTION OF HIGH-SPEED ROCK DIGGING
Kozbagarov R.A. Zhussupov K.A. Kaliyev Y.B. Yessengaliyev M.N. Kochetkov A.V.
2021National Academy of Sciences of the Republic of Kazakhstan
News of the National Academy of Sciences of the Republic of Kazakhstan, Series of Geology and Technical Sciences
2021#6Issue 45085 - 92 pp.
Increasing the productivity of continuous machines with increasing volumes of overburden and mining of rocks is one of the most urgent tasks. The complicated mining conditions required the development and application of advanced technologies based on the introduction of high-performance high-capacity equipment, which would improve the technical and economic performance of open operations. In this regard, the working body of a full-turn rotary excavator must satisfy the following requirements arising from the process of its interaction with rock: to have a low specific energy intensity of cutting, to ensure the required lumpiness of rocks and insignificant dynamics of external load. All these tasks can be solved by the use of new effective methods for the development of rocks by excavation machines with an inertial lower unloading rotor (ILUR). In the present work, the authors present the results of studies of high-speed digging and propose a method for determining the energy consumption of the process of transportation of rocks by an inertial rotor (IR) taking into account the influence of speed. The work shows a graph of the specific energy intensity of the digging process against the speed during the development of the face. It can be seen from the graph that within the limits of rotor speed variation from 2 to 9 m/s the specific energy intensity of the digging process (two rows of knives) increases by 84%, the cutting process (one row of knives) increases by 58%. In the work, the authors also proved that the most promising working tool is ILUR, the OS advantage of which is the development of an array when rotating the rotor “from top to bottom” with a hoop of cut rock. Theoretical dependencies of determination of power consumption for transportation of rocks by inertial rotor.
Bucket rotor , Cutting and transport elements , Digging energy capacity , Duck less rotor , Excavation machines , Inertial rotor , Knife rotor
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Academy of Logistics and Transport, Almaty, Kazakhstan
Yuri Gagarin State Technical University of Saratov, Saratov, Russian Federation
Academy of Logistics and Transport
Yuri Gagarin State Technical University of Saratov
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