METHODS FOR IMPROVING PROCESS AUTOMATION IN THE MINING INDUSTRY
Tulegulov A.D. Yergaliyev D.S. Bazhaev N.A. Keribayeva T.B. Akishev K.M.
2022National 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
2022#2022Issue 1115 - 125 pp.
This paper discusses topical issues of process automation in the mining industry. Depending on the type of open pit or underground mining, various automation facilities are used. In the case of open mining, in recent years, due to technological progress, photogrammetric methods using unmanned aerial vehicles (UAVs) are used for filming, the main advantage of which is the ability to perform operational control of the mining enterprise, determine the volume of warehouses and dumps by obtaining a three-dimensional digital model. In the case of underground mining, various mechanisms are applied, including driving drums. To control the speed of the drive drum, phase shifters with electromechanical control are used. This range of phase shifters includes devices that use mechanisms controlled by an electrical signal. The principles of signal phase control themselves remain mechanical, but the possibility of electronic control allows such phase shifters to be included in automated control and measuring systems. The most important elements of an automation system are converters. The primary converter is the first in the measuring circuit and includes a primary sensitive element (probe, membrane) and other necessary elements for converting an input non-electric quantity into an output electrical quantity. The sensor may consist of one or more measuring transducers combined into a single structure. The sensor is directly affected by the measured non-electrical quantity (force, pressure, level, temperature, etc.) The unified converter consists of a sensor and a matching circuit, the measured physical quantity is converted with an energy source into a normalized output value. The intermediate converter receives the measurement information signal from the upstream converter and, after conversion, transmits this signal to the downstream converter. From early works on various methods for measuring mechanical quantities, it is obvious that there are many unresolved issues in this matter. Over the years, scientific publications have periodically appeared in which the authors outlined their possible methods for using phase shifters with a traveling magnetic field to measure mechanical quantities. Also, the key point in solving this problem is certainly the technology of improving and modernizing the design of measuring phase shifters of angular displacements. In the works of some authors, it has been repeatedly suggested that it is necessary to systematize the available materials and develop a certain concept on this issue.
Automation , Driving drum , Membrane , Probe , Sensors , Transducer , Underground mining , Unmanned aerial vehicles
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Almaty University of Power Engineering and Telecommunications, Almaty, Kazakhstan
Civil Aviation Academy, Almaty, Kazakhstan
Kazakh University of Technology and Business, Nur-Sultan, Kazakhstan
Almaty University of Power Engineering and Telecommunications
Civil Aviation Academy
Kazakh University of Technology and Business
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