Dear Colleagues!

The issue (No. 4, 2024) of the Mining Science and Technology (Russia) journal has been published on our website.

🔥Hurry to read!🔥

In the new issue:

📌 Al-Dujaili A.N. New advances in drilling operations in sandstone, shale, and carbonate formations: a case study of five giant fields in the Mesopotamia Basin, Iraq. Mining Science and Technology (Russia). 2024;9(4):308-327. https://doi.org/10.17073/2500-0632-2023-08-146
📌 Bagdasarau M.A., Mayevskaya A.N., Petrov D.O., Sheshko N.N. GIS modeling of a Cenozoic strata structure in Brest region for forecasting and evaluation of non-metallic deposits. Mining Science and Technology (Russia). 2024;9(4):328-340. https://doi.org/10.17073/2500-0632-2024-03-230
📌 Deryaev A.R. Directional drilling of an exploratory well in the shallow waters of the Caspian Sea. Mining Science and Technology (Russia). 2024;9(4):341-351. https://doi.org/10.17073/2500-0632-2024-02-217
📌 Boyarko G.Yu., Lapteva A.M., Bolsunovskaya L.M. Mineral resource base of Russia’s copper: current state and development prospects. Mining Science and Technology (Russia). 2024;9(4):352-386. https://doi.org/10.17073/2500-0632-2024-05-248
📌 Kalashnik A.I. Effect of water inflows on the strength characteristics of the Lovozero rare-metal deposit rocks. Mining Science and Technology (Russia). 2024;9(4):387-394. https://doi.org/10.17073/2500-0632-2023-09-160
📌 Korol E.A., Degaev E.N., Konyukhov D.S. Assessing dust concentration at the workplace of a crushing and screening plant operator for special labor conditions evaluation. Mining Science and Technology (Russia). 2024;9(4):395-405. https://doi.org/10.17073/2500-0632-2024-03-235
📌 Mitrakova N.V., Khayrulina E.A., Perevoshchikova A.A., Poroshina N.V., Malyshkina E.E., Yakovleva E.S., Kobelev N.A. Chemical and ecological properties of soils and the NDVI analysis on reclaimed sulfide coal waste dumps in the boreal zone. Mining Science and Technology (Russia). 2024;9(4):406-419. https://doi.org/10.17073/2500-0632-2024-04-206
📌 Borisenko V.F., Sidorov V.A., Sushko A.E., Rybakov V.N. Vibration metrics for informational support in assessing the technical condition of ball mills. Mining Science and Technology (Russia). 2024;9(4):420-432. https://doi.org/10.17073/2500-0632-2023-10-175

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#inenglish #MST #issue #hydrocarbons #field #reserves #basin #formation #extraction #drilling #well #productivity #solution #accident #reservoir #bit #control #Iraq #geology #Cenozoic #forecast #GIS #ArcGIS #evaluation #Brest #energy #efficiency #exploration #well #CaspianSea #copper #ore #deposit #mining #Russia #mine #rock #hazard #Lovozero #Karnasurt #production, #crushedstone, #dust, #concentration #emissions #harm #protection #coal #dump #waste #reclamation #lithostrat #soil #NDVI #embryonic #mill #electricdrive #electricengine #shaft #bearing #operation #damage #failures #control #diagnostics #vibration #signal #frequency #analysis #correlation

We present the articles of the third issue of scientific journal "Mining Science and Technology” (Russia) for 2024:

The resulting model can be used for general analysis of operability and stability, as well as for verifying the correct selection of key elements in the design of sucker-rod pump unit systems with variable frequency drives.

For more information, see the article:

📌 Ershov M.S., Efimov E.S. Stability of a controlled sucker-rod pump unit drive under operating conditions and during voltage dips in the electrical network. Mining Science and Technology (Russia). 2024;9(3):292-303. https://doi.org/10.17073/2500-0632-2024-01-213

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#inenglish #MST #pump #drive #control #voltage #frequency #brake #mode #energy #network #generator #current #torque #power #speed #rectifier #inverter #battery #signal #model #Matlab #Simulink #algorithm #emergency #protection #recovery #compensation #load #fluctuations #stability

We present the articles of the fourth issue of scientific journal "Mining Science and Technology” (Russia) for 2024:

This study presents the first analysis of the key interrelated technical characteristics of industrial ball mills, including drum volume, diameter, rotational speed, ball load, total weight, and drive power, enabling a more substantiated approach to selecting technical parameters and operational modes. The installation of a permanent vibration control system on ball mills used for grinding mineral raw materials required the individual determination of technical condition category thresholds for the motor, gear-shaft, and drum. The category thresholds were determined individually for each shaft using statistical classification, under the assumption that coupled components are in a state influenced by the energy potential of damage during staged progression. Standard 'reference' ratios of vibration values across three mutually perpendicular directions were established. Characteristic patterns and sequences of damage progression were identified based on the direct spectra of vibration velocity and acceleration. During the analysis of vibration signal time series, a beat frequency mode was detected, indicating potential damage development within gear elements. Effective informational support for the operational condition of ball mills is achieved through the analysis of overall vibration levels, direct trends in vibration velocity and acceleration, time series of the vibration signal, and both long-term and short-term trend analyses. Vibration velocity trends provide insights into technical condition by assessing operational stability, startup frequency, and maintenance intervals.

For more information, see the article:

📌 Borisenko V.F., Sidorov V.A., Sushko A.E., Rybakov V.N. Vibration metrics for informational support in assessing the technical condition of ball mills. Mining Science and Technology (Russia). 2024;9(4):420-432. https://doi.org/10.17073/2500-0632-2023-10-175

Subscribe to the journal's Telegram channel:
👉t.iss.one/MinSciTech👈

#InEnglish #MST #BallMill #ElectricDrive #ElectricEngine #GearUnit #Design #Shaft #Bearing #Operation #OperationalCapacity #Damage #Failures #Control #Diagnostics #Vibration #Signal #VibrationAnalyzer #VibrationVelocity #VibrationAcceleration #Frequency #Amplitude #Harmonic #Spectrum #Analysis #Correlation #Forecasting #TrendAnalysis