State analysis and basic principles of reproduction state fund of operating coal mines territories

МРНТИ 52.35.29 №1-2024 https://doi.org/10.53939/1560-5655_2024_1_43 PDF Maidukov G.L., Bolbat V.N., Grigoryuk M.E. Abstract. The results of the analysis of the technical and economic state of the mine fund of the existing mines of the Donetsk People’s Republic are presented, options for possible reform of the industry in accordance with the structure of its economy are described. Key…

Modelling a gas fractionation plant

№2-2023 https://doi.org/10.53939/15605655/2023_2_13 Nurislamov R.M., Kenzin N.R., Nefedov A.N., Abilmagzhano A.Z. Abstract: Gas fractional separation is one of the most important processes in the modern oil refining industry. Separation units are one of the most energy- and material-consumable technological units of a modern oil refineries and petrochemical plants. This study aims to create model of a…

Solar element coated with multi-crystalline porous silicon

№2-2023 https://doi.org/10.53939/15605655/2023_2_6 Dikhanbayev K. K., Ikramova S. B., Myrzaly Ye.B., Zhaylybayev I.T., Torakhmet S. Abstract: In this paper, we consider a silicon solar cell (SC) with an antireflection coating made of porous multicrystalline silicon, deposited by electrochemical anodization to the n-layer of the p-n-junction. The minimum of the reflection spectrum of porous μ-Si with an…

The estimation of the engine power to the type of fuel for example diesel YAMZ-238

МРНТИ 73.31.09, 68.85.81, 68.75.02 https://doi.org/10.53939/15605655/2020_1_52 Markov V. A., Bebenin E. V., Вiniyazov A. M., Zakharov V. P. Abstract. The transfer of agricultural machinery to work on cheaper alternative fuels-natural gas, methane-will improve the efficiency of agricultural production. Moreover, Kazakhstan occupies a leading place in the world in terms of its reserves. The simplest and most acceptable…

GEOCHEMICAL FEATURES OF ORECONTROLLING EPIGENETIC ZONALITY AND SATELLITE ELEMENTS OF URANIUM MINERALIZATION AT THE BUDENOVSKOYE DEPOSIT

PDF https://doi.org/10.53939/15605655/2022_4_85 Morialieva A.T., Burkurmanov B.Sh., Shiryaev V.A. Annotation. The study of associated minerals and components is carried out at all stages of geological exploration in the process of developing deposits and during uranium mining, based on exploration data. Since the main purpose is uranium mining, the evaluation of the PPK is carried out only…

A NEW APPROACH TO SOLVING THE PROBLEMS OF INCREASING THE EFFICIENCY OF GEOTHERMAL FIELD DEVELOPMENT

PDF https://doi.org/10.53939/15605655/2022_4_74 Mendebaev T.N. Abstract. The initial prerequisites for the effective development of geothermal deposits have been developed. Geological – reliable information about the geological structure of thermal water deposits, compositions, physical and mechanical properties of rocks in the “water-rock” system. Technical – means of well construction, design features and technological capabilities corresponding to the conditions of…

NATURAL AND ANTHROPOGENIC FORMATION OF CURRENTLY UNACCOUNTED RAW MATERIAL BASE OF METALS, CREATING DEPOSITS OF A NEW TYPE

PDF https://doi.org/10.53939/15605655/2022_4_60 Marat Bitimbaev, Mirgali Kunayev, Khali Yusupov, Zhanat Alisheva Annotation. Ore – natural deposition of chemical elements in the native or mineral-forming form, caused by the action of geological processes and their accompanying geochemical regularities, in which the concentration of some chemical elements reaches a value sufficient for cost-effective extraction in a given period….

STUDY OF CAPILLARY-POROUS COATINGS USED IN POWER INSTALLATIONS

PDF https://doi.org/10.53939/15605655/2022_4_51 Genbach A.A., Jamankulova N.O. Abstract. This article has developed a physical model for the generation of single vapor bubbles in separate cells of a capillary-porous coating. The individual characteristics of bubbles are important for explaining the occurrence and development of cracks, damage to parts and assemblies of power plants. Solution of problem on…

E.DESIGNING A SUSPENDED CABLE PARALLEL ROBOT FOR THE LEARNING PROCESS

PDF https://doi.org/10.53939/15605655/2022_4_41 Tuleshov А.К., Jomartov A.А. , Kamal A.N., Abduraimov A. Abstract. Currently, research is being carried out on cable parallel robots (СPR). In СPR, cables can only work in tension. This feature limits the development and application of cable parallel robots and requires further development of analysis and design methods. The experience of our teachers…

OPTIMAL DESIGN OF AN UNBALANCED DRIVE OF SUCKER-ROD PUMPING UNITS BASED ON A SIX-LINK RECTILINEARLY GUIDING CLASS III CONVERTING MECHANISM

PDF https://doi.org/10.53939/15605655/2022_4_32 Rakhmatulina A.B., Ibrayev S., Imanbaeva N., Sakenova A.M., Mazhen A.N. Abstract. The paper developed the optimal design of the rod pumping unit (RPU) drive based on rectilinearly guiding converting mechanisms using modern methods for calculating mechanical systems, searching for optimal solutions in tasks with many criteria, and meeting modern requirements. The drive mechanism of…