Technological Scheme Research Articles

ОПТИМИЗАЦИЯ ЛОГИСТИЧЕСКИХ ПРОЦЕССОВ ПРИ ОРГАНИЗАЦИИ МУЛЬТИМОДАЛЬНЫХ ПЕРЕВОЗОК

The article addresses the urgent task of improving the efficiency of the entire cargo supply chain by optimizing each of the stages of the logistics process. The authors pay attention to the stage of selecting the performers of each link of the transport and technological scheme for the delivery of goods by optimization using quantitative, qualitative and rail selection criteria. According to the authors, the creation of a database consisting of digital profiles of performers of different types of transport and other participants in the supply chain will accelerate the process of introducing Block chain technology into the domestic freight forwarding industry and will reduce the trans-port component in the cost of finished products, increasing its competitiveness.

ЗАБЕЗПЕЧЕННЯ СТАЛОГО РОЗВИТКУ НА БАЗІ АНАЛІЗУ ТА ОЦІНКИ ХАРАКТЕРИСТИК ШАХТНИХ ВОД ЯК ДЖЕРЕЛ ВОДОПОСТАЧАННЯ ТА ОТРИМАННЯ ЦІННИХ РЕЧОВИН З ВІДХОДІВ ОПРІСНЕННЯ

Purpose. Rationale for the integrated use of the resource potential of coal-mining enterprises, which is aimed at obtaining technical and drinking water for their own production needs, local population and obtaining valuable substances from desalination waste. Methodology. Analysis of world experience, information about aquifer complexes in the Western Donbas mines, conducting chemical analyses of mine waters and salt mixtures obtained after using reverse osmosis products. Results. Based on the accumulated world experience in desalination of highly mineralized waters, it can be concluded that it is possible to effectively implement this experience at mining enterprises. Description of aquifer complexes has been given in detail using the example of the Zakhidno-Donbaska Mine of PJSC “DTEK Pavlohradvuhillia”, chemical analyses of water before and after discharge into settling ponds. A rational technological scheme for desalination, volumes of purified water obtained for drinking and technical water supply, as well as the quantitative and qualitative composition of the dry residue components of mine water desalination waste, and recommendations on possible use of products on the market have been determined. Scientific novelty. Analytical and laboratory studies have been conducted to determine the component composition of mine water desalination waste from Western Donbas coal-mining enterprises. It has been determined that the resulting salt product is a mixture of pure salts and valuable microcomponents, and the resulting distillate is fuel for the operation of hydrogen electrolyzers, which creates prerequisites for modern “green” hydrogen energy infrastructure. Practical significance. The qualitative and quantitative mine water parameters on complex use as an alternative source of water supply and obtaining related reverse osmosis products have been analyzed. The road services propose the consumption of the resulting salt products by municipal enterprises, and the dry distillation residue – to prevent dust. This approach allows solving not only the problem of desalination waste utilization, but also applying the separated valuable substances in the industrial market of food, medical, cosmetic, paint and varnish, chemical, as well as building materials, plastics and polymers production industries. Keywords: mine water, waste recycling, mineral resource, coal-mining enterprises.

ФОРМУВАННЯ МЕТОДИКИ ДОСЛІДЖЕНЬ ВОДНЕВООРІЄНТОВАНОЇ ТЕХНОЛОГІЇ ПІДЗЕМНОЇ ГАЗИФІКАЦІЇ ВУГІЛЛЯ

Purpose. Establishing correlations between analytical and laboratory research in underground coal gasification with a focus on hydrogen production. Methodology. Analysis of experience in conducting analytical and laboratory research in the field of underground coal gasification in situ. Analysis of the application specifics of the Darcy-Weisbach equation to establish optimal conditions for supplying steam-air mixture to the combustion face considering the relationship between the volumetric flow of the specified mixture through the controlled pipeline and its cross-sectional area. Results. The proposed algorithm for conducting research on underground coal gasification processes focuses on hydrogen production. Analytical formulas are provided to determine optimal parameters for supplying the blowing mixture to the combustion front via the controlled pipeline. An author's technological scheme of a laboratory setup for studying gasification processes and the peculiarities of researching it are presented. A diagram illustrating the relationship between blowing system parameters, which vary depending on the hydrogen raw material requirements, the energy capabilities of the system itself, and the parameters of the controlled pipeline, is provided. Originality: Scientifically grounded development of a methodology for conducting analytical and laboratory research on coal gasification process to determine parameters for supplying the blowing mixture through the controlled pipeline with a focus on hydrogen production. Practical implications: Practical implications: Conducting research according to the developed research methodology of underground coal gasification technology allows for a systematic and structured approach to assessing all aspects of the gasification process. The use of a clear research methodology helps to avoid subjectivity and simplifies the process of data collection and analysis. The research methodology ensures high reliability and accuracy of the obtained data, which is critical for making informed decisions. Effective use of the research methodology minimizes resource usage, such as time, costs, and equipment, by avoiding unnecessary duplications and unjustified expenses. Practical implications: Practical implications: Conducting research according to the developed research methodology of underground coal gasification technology allows for a systematic and structured approach to assessing all aspects of the gasification process. The use of a clear research methodology helps to avoid subjectivity and simplifies the process of data collection and analysis. The research methodology ensures high reliability and accuracy of the obtained data, which is critical for making informed decisions. Effective use of the research methodology minimizes resource usage, such as time, costs, and equipment, by avoiding unnecessary duplications and unjustified expenses. Keywords: underground coal gasification, hydrogen, methodology, analytical research, Darcy-Weisbach equation, laboratory research.

A LOGICAL AND MATHEMATICAL MODEL OF THE PHASE EQUILIBRIUM MODELING AND ITS APPLICATION AS A TECHNOLOGICAL INNOVATION BY EXAMPLE OF THE TRIGLYCERIDE MATERIALS TRANSFORMATION INTO FATTY ACID ESTERS

This study was conducted in order to create a logical and mathematical model for the production of fatty acid esters from triglyceride raw materials, based on methods adapted to appropriate systems and ultimately aimed at solving problems of improving the quality of products, creating flexible technological schemes focused on a variety of raw materials and products, without time-consuming and lengthy experiments. The logical-mathematical model is based on the UNIFAC calculation model in a modified form, which provides data calculation adequate to the experiment. The modified UNIFAC model is confirmed by a set of experimental data, the calculation of technological parameters shows acceptability in predicting the optimal technological conditions of the processes used. The possibility of achieving compliance with the calculated experimental data is shown by examples of using the model in solving problems during the development of multi-stage extraction of free fatty acids from triglyceride raw materials when evaluating the composition of raw materials and liquid phases in extraction systems at different stages of the extraction process, as well as the obtained products using the gas chromatography method. The generalized data are presented in the form of a logical and mathematical model that describes the system of using the calculated data necessary for the production process. The logical-mathematical model takes into account several alternative variants of the technology, includes criteria by which the choice of a variant of the technological process takes place. The results obtained represent an important stage in the development of digital production technologies and experience in the development of technological innovations. The above model becomes the basis for transferring the technology of transformation of triglyceride raw materials into fatty acid esters to an innovative level, which lays the foundation for creating a cyber-physical system combining the work of a process engineer and a digital system.

Achieving climate neutrality in coal mining regions through the underground coal gasification

Coal mining regions face significant challenges in transitioning towards climate neutrality due to their dependence on fossil fuel extraction. This research explores the potential of underground coal gasification (UCG) technology as a pathway towards climate neutrality in these regions. UCG involves converting coal in-situ into syngas, a cleaner-burning fuel, while mitigating greenhouse gas emissions. The study investigates the material-thermal parameters of the gasification process using the MTB SPGV software and analyzes the gas concentration and producer gas yield parameters in the “Stepova” Mine field of SE “Lvivvuhillia”. Additionally, technological solutions for achieving climate neutrality through carbon dioxide (CO2) utilization are proposed, focusing on pre-separation of CO2 from producer gas obtained during UCG. A technological scheme for CO2 utilization is presented, outlining the steps from gas extraction to storage and utilization in underground spaces. The proposed method offers a promising approach to mitigate CO2 emissions and optimize resource utilization in coalmining regions, contributing to global efforts for environmental sustainability and climate action.

Study of the influence on potassium chloride enrichment technology in potassium ore

Due to the fact that the rich reserves of potash minerals are decreasing in the world, scientific research is being carried out on the development of effective technologies for beneficiation of minerals containing a small amount of potassium. In this regard, to study the mineralogical composition of low-grade potassium ores of the Tyubetagan mine, to conduct theoretical analysis of the galurgic method of beneficiation and to carry out research in laboratory conditions, to study the influence of various technological parameters on product output and to find optimal conditions, to develop a technological scheme of beneficiation of low-grade sylvinite ores by the galurgic method special attention is paid to the output. In this study, the mineralogical composition of potash ores of Tubegatan mine was studied and methods of beneficiation were proposed according to the relationship between the content of KCl, NaCl, insoluble residue and particle size of potash ores.

Organizational and technological features of geodetic observations of earth surface deformations

The article examines a complex of organizational, technological and economic measures to ensure observations of deformations of the earth's surface. The authors provide an overview of issues of improving the safety of buildings located in seismically active and landslide zones of the Russian Federation, and offer recommendations for improving monitoring methods. The need for careful consideration of the geodynamic factor during the construction and operation of not only especially critical unique objects, but also mass housing construction projects is substantiated. To study geodynamic processes occurring in the territories of populated areas or in the territories of large industrial enterprises and engineering structures, it is proposed to create specialized observation systems - geodynamic polygons. The authors propose an organizational and technological scheme for observations at the geodynamic site. Research methods for making organizational and technological decisions are discussed. Effective organization of work will allow us to study abnormal vertical and horizontal movements and prevent possible damage to infrastructure. The authors of the article also discuss and justify recommendations for performing and processing geodetic observations of deformations of the earth's surface.

ОЦЕНКА ЭКОНОМИЧЕСКОЙ ЦЕЛЕСООБРАЗНОСТИ ВНЕДРЕНИЯ ТЕХНОЛОГИИ ОЧИСТКИ КОНДЕНСАТА НЕФТЕХИМИЧЕСКОГО ПРЕДПРИЯТИЯ В РАМКАХ ПОЛИТИКИ ЭНЕРГОСБЕРЕЖЕНИЯ В СИСТЕМЕ СБОРА И ВОЗВРАТА

The policy of resource conservation at the enterprises of the energy sector is relevant. Water supply and sanitation systems have increased costs and losses. Therefore, optimizing the process of collecting and cleaning process waters will save resources. In this paper, the possibility of reuse of condensate from a petrochemical enterprise was considered. In the course of the work, the main indicators of condensate quality were determined and a technological scheme for cleaning up to the normalized parameters was developed. An assessment of the economic feasibility of introducing this technology to the enterprise was also carried out.

ВЫПУСК ОПЫТНО-ПРОМЫШЛЕННЫХ ПАРТИЙ КРИОЛИТА С ИСПОЛЬЗОВАНИЕМ ХЛОРИДА И ГИДРОКСИДА НАТРИЯ И ИХ ИСПЫТАНИЯ ПРИ ПРОИЗВОДСТВЕ АЛЮМИНИЯ

The paper presents the results of pilot batch production of cryolite using sodium chloride and sodium hydroxide by hydrochemical method, physical and chemical studies of the obtained products, as well as their testing in aluminium electrolysers with measurements of technological parameters before and after use. The conducted studies have shown that the process of production of a pilot batch of cryolite by hydrochemical method from hydrofluoric acid using aluminium hydroxide, sodium chloride and sodium hydroxide solutions proceeds at a temperature of 25 °C for 30-45 min. In this case, the yield of cryolite according to the first embodiment using sodium chloride is more than 80 %, since during the reaction a side hydrochloric acid is formed, which dissolves more than 15 % of the cryolite. When sodium hydroxide is used, the process proceeds similarly to the first variant with an increase in cryolite yield of more than 90%. According to pilot tests, the first variant produced 600 kg of cryolite and the second variant produced 620 kg of cryolite. The reliability of the process of cryolite production with the use of sodium chloride and hydroxide was confirmed by chemical and X-ray phase analyses using the modernised Dron-2 unit. It was found that the analysed samples correspond to the reference cryolite, indicating the interaction of sodium chloride and sodium hydroxide with fluoroaluminium acid. Also the obtained synthetic products have successfully passed pilot tests in aluminium electrolysers of JSC "TALCO" with control of technological parameters. On the basis of conducted researches the basic technological scheme of cryolite production by hydrochemical method with application of hydrofluoric acid, aluminium hydroxide, sodium chloride and hydroxide was developed. As a result of the research it was found out that the technology of cryolite production with the use of sodium chloride and hydroxide is easy to implement and cost-effective due to low energy consumption of production and the use of local mineral raw materials.

TECHNOLOGY FOR ISOLATION AND STUDY OF THE CHEMICAL COMPOSITION OF MELANIN FROM THE BASIDIOUS MUSHROOM BOVISTA PLUMBEA

The results of the development of a technology for the isolation of melanins from the basidiomycete mushroom Bovista plumbea collected in the territory of Tashkent and the Tashkent region of the Republic of Uzbekistan are presented. A technological scheme for obtaining melanins from basidiomycetes has been developed, which includes the following stages: drying, grinding of raw materials, purification, water extraction, filtration, concentration, acidification, centrifugation, dissolution, washing, drying. By water extraction, melanins were isolated, which are dark brown, alkali-soluble powder, with a molecular weight of 55686 Da, the content of which in the extract was 15.35%, respectively, which indicates the prospects of this type of raw material for obtaining drugs based on them. When studying the elemental composition of melanins obtained from the fruiting bodies of basidiomycetes by the method of water extraction, it was found that they contain 9.706% nitrogen, 55.831% carbon and 7.203% hydrogen. UV and IR spectroscopy was used to confirm that the obtained samples belonged to the category of melanins. The IR spectra of melanin isolated from the fruiting body of the basidiomycete were studied. Melanins are characterized by absorption bands in the region of 1690-1590 cm-1, indicating the presence of conjugated aromatic bonds in their structure. There is also a wide absorption band in the region of 3430-3100 cm-1, which is due to the presence of polyphenolic and OH groups. UV spectral analysis for the content of melanin in fractions of basidiomycete raw materials showed the presence of absorption bands in the region of 320-380 nm, corresponding to the characteristic absorption bands of melanin.

Innovative Practices for IoT Scenarios: A Case Study of Driverless Shared Cars

As a new type of digital product, driverless shared cars will become an important part of the intelligent public transportation system. This paper aims to use driverless shared vehicles to carry out a comprehensive digital transformation of transportation, that is, to remotely control the driverless through the man-machine interface, and turn the taxi into a remote-controlled car controlled by a remote center. Compared with existing technology and business models, the technical framework and operational idea of driverless shared cars proposed in this paper have great advantages. It can not only reduce per capita carbon emissions and travel costs, but also promote efficient management of transportation and cities. This study can be also adapted to various countries in the world due to its flexibility. After summarizing and analyzing different driverless and shared car technology schemes, this paper predicts the profitability of cruise taxis after adopting this model, puts forward feasible design schemes, and looks forward to its development prospects all over the world.

Justification of the design and technological scheme of a new type of machine for applying mineral fertilizers

Annotation Purpose. Rationale for the structural and technological scheme of the transport-technological machine for the application of solid mineral fertilizers, which will ensure the improvement of the quality of the application of mineral fertilizers by stabilizing the dose of their application as the body of the machine is emptied and its annual load increases. Methods. Analysis of known designs of machines for applying solid mineral fertilizers, theoretical based on the laws of mechanics and experimental using standard methods. Results. The structural and technological scheme of a new type of machine for applying mineral fertilizers and dependencies for determining the main parameters and modes of operation of its working bodies are substantiated. Its experimental sample was created, the results of which in the process of laboratory and field studies confirmed the independence of the dose of mineral fertilizers from the filling (emptying) of the car body with mineral fertilizers. In addition, the possibility of using the machine in the operations of transporting loose technological materials and transshipping them to other technical means and stationary capacities, as well as unloading to the site, was confirmed, which ensured an increase in its annual loading by more than 4 times. Conclusions. The creation of body-type machines for applying solid mineral fertilizers according to the principle of transport-technological machines, which include a body equipped with a feeder, a screw conveyor, a hopper with a dispenser and sorting working bodies, ensures: - exclusion of the influence of the degree of filling (emptying) of the body machines with mineral fertilizers for the dose of their introduction; - expansion of the scope of application of the machine thanks to its additional use in transportation operations of loose technological materials and their transshipment into other technical means and stationary capacities, as well as unloading at the site, which in general leads to an increase in its annual loading more than 4 times.

Determination of the influence degree of technologies for issuing train traffic safety warnings

This article focuses on assessing the quality of information based on the Bayes network to justify the effectiveness of internet technology in providing traffic safety in rail transport, while issuing speed reduction alerts. To achieve this goal, the following tasks were completed: technological schemes of data transmission and reception systems “P”, “Sh”, “E” “L”, “D” of rail transport network enterprise were presented; a Bayes network was formed, the probabilities of events were determined; conditional probabilities of control phenomena were determined. An existing and proposed system of issuing and cancelling warnings on Uzbekistan Railways has been studied. An evaluation based on the Bayes network has been carried out to justify efficiency in terms of data quality. One plot with a train serving intermediate stations was chosen conditionally. The transmission of alerts to these trains was carried out with two different systems. Technological operations are reduced to probabilistic relations. The model identifies a control event in four for comparison. The results showed the reliability of existing monitoring system data lower than suggested. This is due to the connection of the existing transmission system with each other, which allows the OBAUT system to control that all data is simultaneously transmitted and the transmitted data is received, regardless of the previous data. In addition, the level of subjective interventions for information transmission is also significantly reduced. OBAUT capabilities are considered much more efficient in terms of data quality, reliability and timely transmission. The widespread use of Information Technology in the network helps to improve the quality of data, and the addition allows you to make quick decisions in the organization of train traffic.

Математичний метод визначення викидів забруднюючих речовин в атмосферне повітря з джерел БХУ на коксохімічному виробництві

The article considers the issues related to the use of large volumes of water in the technological processes of coke production, which results in the generation of a large amount of polluted wastewater of different origin and properties. It is noted that a separate wastewater sewerage system is used at coke plant allows differentiated solutions to the methods of treatment of wastewater of different composition and the fullest use of treated wastewater for the production needs of the enterprise. Water supply to the main water consumers at the coke plant is applied according to the reverse scheme. The article characterises the quantitative and qualitative composition of wastewater coming from different shops of coke production. The necessity of efficient purification of phenolic waters at a waste water treatment plant is considered, which is dictated by their further use according to the technological scheme in production. The analysis of the waste water treatment plant as a source of air pollution and the need to determine the quantitative and qualitative characteristics of pollutant emissions from the waste water treatment plant to assess the environmental impact are provided. The methods for determining pollutant emissions from waste water treatment plants, which are currently used at existing enterprises and in the design of waste water treatment plant facilities, are considered. The necessity of developing a methodology for calculating pollutant emissions from waste water treatment plants at coke production is substantiated. The list of basic initial indicators for performing mathematical calculations of pollutant emissions from waste water treatment plant facilities in coke production is established. The algorithms of mathematical calculations of the quantitative composition of pollutant emissions from the tank equipment depending on the characteristics of the technological process and design features of the waste water treatment plants tanks are presented. Keywords: coke production, wastewater, pollutant emissions, composition, treatment, waste water treatment plant, methodology. Corresponding author: Trembach T.F., e-mail: ozos@giprokoks.com

Selection of an optimal set of machines for sorting and crushing municipal solid waste

The article is dedicated to the selection of the optimal set of machines for sorting and crushing municipal solid waste based on its properties and accumulation rates. Considering the properties of waste and technologies for its collection, a new technological scheme for processing municipal solid waste was developed and, based on this scheme, the optimal set of machines was selected. In addition, the research conducted to determine the fractional composition of the waste made it possible to substantiate the diameter of holes in the drum screen mesh. Based on the analysis of the morphological composition of the waste at the end of the technological chain, the type of crusher design was determined and the main parameters of the hammer crusher were substantiated in connection with the technological processing. The optimal set of machines will make it possible to process the components of municipal solid waste for use in the form of secondary raw materials with the least material and time costs.

К ВОПРОСУ ПОДГОТОВКИ ВОДЫ, ИСПОЛЬЗУЕМОЙ ДЛЯ СИСТЕМЫ ЗАВОДНЕНИЯ, ПРИ УСЛОВИИ ОБЕСПЕЧЕНИЯ ЭКОЛОГИЧЕСКОГО МОНИТОРИНГА ПРОЦЕССА

The research results presented in the article have shown that when using different types of water to maintain reservoir pressure, the technological schemes of water treatment plants have significant differences. The impact of the processes of reservoir flooding on the state of the territory, the inconstancy and complexity of the composition of the waters used to maintain reservoir pressure, necessitate continuous environmental monitoring in the area of influence of the oil and gas field

ТЕОРЕТИЧЕСКИЕ ИССЛЕДОВАНИЯ ПРОЦЕССА ОБРАЗОВАНИЯ БИОГАЗА В МЕТАНТЕНКЕ С БИОФИЛЬТРОМ

The main essence of the theoretical research methodology is based on the construction of a mathematical model of the accumulation of active biomass (methane-forming microorganisms) on biofilter carriers, which characterizes the intensity of biogas formation in a methane tank. With existing technologies, the concentration of active biomass is removed from the methane tank with unloaded processed raw materials. Therefore, when studying the kinetics of microbiological processes of biogas formation, the main attention was paid to the theoretical study of the processing of organic biomass, depending on the effectiveness of the biofilter in the methane tank. The article presents the technological scheme and technical characteristics of a methane tank with a biofilter. The results of theoretical studies present the mathematical model of intensification of the biogas formation process obtained by us, depending on the accumulation of active biomass of methane-forming microorganisms on the carriers of a spherical biofilter and its energy characteristics.

Treatment of wastewater from textile factories using modified bentonite

The modern textile industry uses large quantities of water and produces significant volumes of wastewater at various stages of production. This especially applies to the dyeing stages and fabrics processing. In the wastewater of the OJSC “S.M. Kirov Spinning and Thread Combine” significant excesses were revealed in almost all studied indicators, except for calcium and nitrites. The excess of Cu2+ copper ions reaches 800 times. Laboratory studies of the effectiveness of sorption materials with respect to Cu2+ ions were carried out using model solutions of CuSO4∙5H2O. Research has made it possible to establish bentonite, granulated, calcined at a temperature of 550 °C and hydrophobized, as the most effective adsorbent. A comparative analysis of models of adsorption of Cu2+ ions on hydrophobized bentonite showed compliance of the adsorption process by to the Freundlich model (R2 = 0.978). A technological scheme of a local water purification station for a textile enterprise has been proposed, including a two-component adsorption filter loaded with bentonite, granulated, calcined at a temperature of 550 °C and hydrophobized.

РАЗРАБОТКА ТЕХНОЛОГИИ ПРИГОТОВЛЕНИЯ КОРМОВОЙ СМЕСИ С ИСПОЛЬЗОВАНИЕМ ВТОРИЧНЫХ СЫРЬЕВЫХ РЕСУРСОВ

In order to supplying animals with natural vitamins round all year providing and the volume of lowvalue coarse feed without additional energy intensive treatments increasing, feed mixture preparing by the hydroponic method’s technology has been developed. The crushed straw and green fodder grown from cereals or legumes’ components for this mixture are used. The green fodder’s traditional hydroponic cultivation without substrates has root system mass’s large losses, but also does not ensure the plants’ full development. The substrate using in this case by difficulty of root system cleaning is limited. In proposed technology, straw acts not only as a feed mixture’s component, but also as a root habitable base. The rational technological parameters of the affecting green feed highest yield’s production have been determined experimentally. It grain soaking, cultivation, temperature and surrounding air’s humidity, the starting material’s sowing rate and illumination’s duration is included. The straw layer’s waterphysical properties as a root habitable base, its porosity, density and capillary moisture capacity have been studied. An experimental comparison of green feed yield obtained by the proposed technology and the traditional method using has been carried out. The analysis showed that green feed yield increasing is primarily due to root mass’s yield increasing and root habitable base’s water air nutrition has improved. According to the proposed technological scheme, the design of feed mixture preparation’s installation has been developed. This installation’s main structural elements operability has been confirmed experimentally, and the parameters of individual working bodies have been substantiated. Recommendations on the proposed technology using and installation’s design for feed mixture preparation are given. The analysis of the experimental results was carried out, and the corresponding conclusions were done: design solutions using for technological process’s organization at feed mixtures production can significantly reduce final feed products’ cost, and consequently, livestock production’s cost as a whole. The directions of further work on this issue have been determined.

ОПЫТ ПРИМЕНЕНИЯ ПОДЗЕМНОЙ ГИДРАВЛИЧЕСКОЙ ДОБЫЧИ УГЛЯ В СССР И РОССИИ

The article provides an analysis of the mining and geological conditions and the experience of coal mines in the USSR and Russia, in which hydraulic mining technology was used. The applied technical solutions and technological schemes of mining are also considered. The preferred mining and geological conditions for the use of hydrotechnology have been determined. Promising areas of hydro extraction research have been identified, such as the development of efficient underground dehydration complexes and automation of basic technological processes. The results of the research can be useful for further improving the efficiency, safety and realization of the potential of hydromechanization of coal mining and other minerals.