Coal Mining Enterprises Research Articles

Where risk, where capability? Building the emergency management capability structure of coal mining enterprises based on risk matching perspective

The emergency management capability of coal mine enterprises is a crucial element of coal mine safety management. Exploring the structure of the emergency management capability of coal mine enterprises under the perspective of risk matching is conducive to clarifying the core nodes of emergency management capability construction. A qualitative analysis of Chinese underground coal mine accident reports, related laws and regulations, and relevant academic papers was conducted using grounded theory. Currently, the risks in underground coal mines in China can be divided into source-generated risks, derivative risks, and residual risks. The elements of emergency management capabilities that match them are absorption capability, detection and control capability, and response capability. At the same time, some capability elements across different risks are summarized as internal enhancement and external enhancement, respectively. The study provides a reference for coal mining enterprises to improve emergency management capability and reduce risks.

Study on the emergency capacity of coal mine enterprises in Longdong Area based on D-FAHP method

Emergency capability assessment is a complex system with multiple factors, variables and levels. Incomplete and uncertain assess information often occurs during assessment. Based on this, a method combining D-number theory and fuzzy analytic Hierarchy process (FAHP) is proposed to study the emergency capacity of coal enterprises in Longdong area. On the basis of analyzing the limitation of D-S evidence theory, the D-number theory was optimized and improved. According to the principles of systematicness, feasibility, scientificity and timeliness, a hierarchical structure model of enterprise emergency capability assessment was constructed from the perspective of pre-incident, mid-incident and post-incident, which consisted of 4 first-level indicators and 18 s-level indicators. The weight and importance of the assessment index of emergency response capability are calculated by organically integrating the D-number preference relation with the hierarchy structure. Combined with the assessment results of experts, a quantitative analysis and evaluation of the emergency response capacity of a coal enterprise was conducted by using FAHP. The comprehensive score of the enterprise's emergency response capability was 80.45, and the level of emergency response capacity was "good". The research results show that the D-FAHP method has high reliability in evaluating the emergency response capability of coal enterprises, avoiding the impact of uncertain and incomplete information on the assessment results. This can not only effectively identify the weak links in emergency management, but also meet the emergency decision-making needs of enterprises in the emergency state, which has important guiding significance to improve the ability and level of enterprise emergency management.

Research on the Application and Management of Mechatronics Technology in Coal Mines

The application of mechatronics technology in coal mining enterprises is in line with the current trend of industrialization in China. In the specific production and mining links, strengthening the application and management of mechatronics technology in coal mines has an important role in promoting the improvement of coal mining efficiency. Therefore, this paper analyzes the specific application of mechatronics technology in coal mines, and gives specific management measures combined with the current problems in the application process, aiming to achieve safe production in coal mines and improve the application effect of mechatronics technology.

Development, effectiveness, and deficiency of China's Coal Mine Safety Supervision System

Coal mine safety is closely related to the stable development of China's economy. Coal mine safety supervision system provides a powerful guarantee of coal mine safety. A comprehensive review of the reform process of China's coal mine safety supervision system is important for exploring its impact on coal mine safety production. This study focuses on the reform process of China's coal mine safety supervision system from the establishment of the State Administration of Coal Mine Safety (SACMS, later renamed the National Mine Safety Administration (NMSA) in 2020) in 1999–2022. The safety status and safety supervision systems of the coal mining industry and the construction industry are compared to verify the importance of the establishment of the SACMS. It is found that the coal mine safety status has improved significantly, and the number of fatalities has decreased steadily, which is in sharp contrast with the accident trend in the construction industry. Finally, this study compared the coal mine safety status between the United States and China. Results show that there is still a gap between the two countries in coal mine safety levels. Coal mine geological conditions, coal mining technology, safety training, and coal mine safety supervision forces are the influencing factors of coal mine safety. Based on the advanced experience of the United States, this research puts forward suggestions for China's safety supervision. In addition, the law enforcement activities of the NMSA are also reflected in this study. The outcomes are significant for understanding the containment effect of coal mine safety supervision on coal mine accidents. Besides, the research also provides professional materials for coal mine enterprises and other production industries, which is conducive to promoting the safe production of various industries to a certain extent.

Региональный критерий отнесения горнопромышленных регионов к территориям с наибольшей подверженностью геоэкологическим изменениям

Introduction. Territories adjacent to mining regions always experience a negative impact from the mining enterprise. The scale of such an impact on the environment is estimated by taking into account factors such as geographical location, climatic conditions, the amount of minerals extracted, as well as the ratio of mineral reserves to the area of the mining region. For geo-ecological assessment of the scale of impacts of the territory near the mining region on the environment, it is necessary to introduce a regional coefficient that takes into account the quantitative distribution of mining enterprises on the area of the mining region, as well as the ratio of reserves to area. In this regard, the question arises about the creation of a geo-ecological assessment methodology based on this indicator. Objective. Development of a criterion for a comprehensive geo-ecological assessment of mining regions impact, based on the regional indicator on the example of coal mining enterprises. Methodology. When carrying out the research, the analysis of literary domestic and foreign sources was used; generally accepted methods, including methods of geo-ecological assessment, assessment of natural potential, analysis of anthropogenic load, protection of the territory of the location of the coal mining enterprise. Results and discussion. A functional scheme of the stages of the geoecological assessment of the territory of a coal mining enterprise has been developed to calculate the geoecological assessment indicator with regard to the natural potential of the territory, the total anthropogenic load and the protection of the territory. It is proposed to use a regional indicator to classify the mining region as the territories most susceptible to geoecological environmental changes due to the ratio of the amount of coal production and reserves to the area of the mining region and taking this coefficient into account when allocating state subsidies to improve the environmental situation of the mining region. Conclusions. The main criterion of the geoecological assessment of the mining region– the regional indicator of the attribution of the mining region to the territories with the greatest susceptibility to geoecological changes has been established. The criterion is estimated by the ratio of the volume of production and coal reserves to the area of the mining region. This coefficient is crucial when allocating state subsidies to improve the environmental situation of the mining region. The introduction of a regional indicator creates optimal conditions for forecasting geoecological hazards and the appointment of environmental and nature restoration measures.

A new concept for complex mining of mineral raw material resources from DTEK coal mines based on sustainable development and ESG strategy

Purpose. The research purpose is to develop a concept for complex mining of mineral resources from coal mines using the example of PJSC DTEK Pavlohradvuhillia mines with a transition to multi-product production of clean drinking water, utilization of methane, secondary coal from rock dumps and sludge reservoirs, low-potential thermal energy of mine groundwaters and associated raw materials from desalination waste. Methods. The research uses an integrated approach, which includes an analysis of existing experience and available complex coal mining technologies, laboratory studies of mine water desalination technology by the reverse osmosis method with thermal distillation of concentrated brine, and chemical analysis using ElvaX laboratory equipment. Findings. This paper presents the research results of a comprehensive analysis of mineral raw material resources related to coal mining. The technically achievable energy potential that can be produced from the secondary coal of rock dumps and sludge reservoirs has been determined, which in total is 183.3 TJ. The annual heat potential of methane gas utilization has been estimated, which in total of PJSC DTEK Pavlohradvuhillia’s mines reaches 7.1 PJ. The possibility of extracting up to 1.12 TJ/year of associated thermal energy from the water-drainage installation of mine complexes has been determined. For the conditions of the Zakhidno-Donbaska mine, the authors of the paper have developed a technological scheme for the water preparation process by the reverse osmosis with the desalination brine treatment by the method of multistage evaporation on adiabatic evaporators. Originality. For the first time, the energy flows related to coal mining technology have been comprehensively analyzed for the possibility of their joint use to cover the needs of the mine complex. The prospects for complex mining of mineral resources have been assessed based on the adaptation of the mine complex production facilities to the multi-product production of clean drinking water, utilization of methane gas, low-potential thermal energy from mine groundwaters and secondary raw materials of desalination waste. Practical implications. The proposed set of technological solutions will ensure the sustainable development and diversification of the production of PJSC DTEK Pavlohradvuhillia coal-mining enterprises, as well as the effective transformation of coal-mining cities during the period of transition from mono-product production to the creation of multi-business production complexes that comply with ESG principles. The creation of multi-product mine complexes capable of producing not only coal, but also heat and associated mineral raw material resources, should become a guarantee of stable social-economic development of coal-mining regions.

Safety culture system construction in coal mine enterprises from the perspective of hazards: A case study on the Yimei Coal Group.

The construction of a safety culture in coal mine enterprises is an essential component of coal mine safety management. Current studies do not address the mechanism for forming and constructing systems for coal mine enterprise safety culture, and many studies are based on imperfect theoretical frameworks and unsystematic empirical research, their policy recommendations are not systematic or operable, and they offer no feasible safety culture construction system. This study is devoted to analysing the theoretical basis of safety culture construction in coal mine enterprises from the perspective of hazards and proposing the content, stages and targets of constructing a safety culture and develops pragmatic approaches for coal mining enterprises to improve safety culture. A theoretical basis for safety culture construction in coal mine enterprises is proposed from the perspective of hazards by considering accident-causing mechanisms based on hazards. Furthermore, this study applied the case analysis and application to conduct empirical research on the proposed theoretical basis for safety culture construction from the perspective of hazards. Four aspects are proposed to capture the content and objectives of safety culture construction from the perspective of hazards: safety concept, behaviour safety, material state safety, and safety institutions. Furthermore, this paper provides a case study of safety culture construction by the Yimei coal group from the perspective of hazards, identifies the hazards based on the above four aspects, and then identifies preventative measures and controls for the identified hazards. Constructing a safety culture in coal mine enterprises from the perspective of hazards is operable and practical, and thus this study provides essential theoretical and practical value for improving coal mine safety.

Методология стратегического управления угледобывающими предприятиями в чрезвычайный период

The article features the strategic management of coal mining companies in Russia under the current Western sanctions. The research objective was to identify the optimal methodological approaches and priority strategic measures that would ensure the sustainable long-term development of coal-mining enterprises affected by the sanctions. The authors identify the threats to coal mining enterprises caused by the sanctions, as well as their impact on the sustainable development of the mining industry. They compiled a list of strategic measures that could change the development strategy of coal mining enterprises in the context of external sanctions pressure. First, the logistics chains between the Eastern ports and the Asia-Pacific market should be reorganized. Second, coal mining enterprises should be technologically independent. Third, the interaction between the regional authorities and coal mining businesses requires new models. The article also proves the expediency of the strategic approach and methodological recommendations to managing the sustainable development of coal mining companies in the context of a long-term sanctions. The scientific and methodological apparatus of the coal mining strategic management is a promising scientific matter that requires a further analysis.

Evolutionary game and simulation analysis on management synergy in China’s coal emergency coordination

Once coal mine accidents occur, a series of chain reactions will bring radiation effects that are difficult to solve in the short term to the normal operation of the economy and society. Therefore, the post-disaster management of coal mine accident is particularly important. Coal mine emergency response involves many stakeholders, and it needs various regions, departments to achieve multi-agent, multi-level effective collaboration to ensure that the coal mine accidents are controlled as soon as possible. Local governments and coal mine enterprises are the main forces in the post-accident emergency management of coal mines, but the differences in their interest motives, preferences and cognitive structures make it difficult for the relevant emergency managers to make correct decisions in the complex accident management environment, therefore, the game relationship between conflict and cooperation among related subjects is explored based on the perspective of game theory. This study establishes a game model of coal mine accident response behavior between coal mining enterprises and local governments, and quantitatively adopts the method of numerical simulation analysis to conduct in-depth analysis of the influencing factors of their decision-making behavior. The results reveal that: 1) the establishment of an information sharing mechanism is an important condition for local governments to efficiently and quickly start the incident response process for coal mine accidents; 2) Under the proper supervision of local government, the impact of the reduction of emergency response cost on the active response of coal mining enterprises is more significant and direct, that is, The cost of emergency response is the decisive factor affecting the incident response work of coal mining company; 3) the establishment of emergency cost compensation mechanism and incentive mechanism should also be the focus of local governments in formulating emergency coordination policies in the future. This study provides scientifc and reasonable management suggestions in line with the actual situation of China and provides a useful reference for local government to formulate the optimal strategy for emergency coordination in coal mine emergencies, to improve the motivation of each coordinating subjects and to improve the current situation of emergency coordination in China’s coal mines.

Workplace mortality at coal industry enterprises of Russia

Introduction. The coal industry, being one of the leading sectors of the Russian economy, occupies a leading position in terms of the share of workers employed in harmful and dangerous working conditions (79.1% in 2021). Unfavorable working conditions and overwork make a significant contribution to the formation of mortality rates in the workplace of employees engaged in coal mining, both due to industrial injuries, and from common diseases. The study aims to research the causes and mortality rates in the workplace at coal mining enterprises in Russia. Materials and methods. According to Rosugleprof, the authors have carried out an analysis of the mortality of workers engaged in coal mining in the workplace due to occupational injuries and general diseases for the period 2020-2022 . The researchers calculated the rates of fatal injuries per million tons of coal mining and per one thousand employees, as well as mortality from general diseases per one thousand employees, also conducted an analysis within the industry and compared with the country as a whole. An in-depth analysis of fatal injuries in 2022 was carried out. Results. In 2020, the level of fatal injuries in coal mining amounted to 0.13 per thousand workers, including 0.28 per thousand employees in mines, which is three and six times higher, respectively, compared with the country as a whole (0.045 per one thousand employees). In 2021, injury rates increased, amounting to 0.51, 1.72 and 0.06 per one thousand employees, respectively. The reason for the sharp increase in injury rates in 2021 was an accident with a methane explosion in a mine, which claimed the lives of 51 people. In-depth analysis of injuries in 2022 He showed that the main causes of fatal accidents in the conduct of coal mining operations are violation of safety rules and personal carelessness. Almost 95% of cases of acute diseases are closely related to cardiovascular diseases. Five to six cases of general illnesses requiring urgent medical care accounted for one death at the workplace, while seven to eight cases of occupational injuries accounted for one death. Conclusion. Despite ongoing measures to improve working conditions, the coal industry continues to have an extremely high rate of workplace mortality, both due to injuries and due to death from natural causes. The most unfavorable situation is observed in the mines. This is due to the presence of a complex of harmful and dangerous production factors and a high risk of accidents. Of particular importance is the nervous and stressful nature of work and overwork of workers, which leads to a significant number of potentially preventable injuries due to personal negligence and cases of acute cardiovascular diseases. This indicates the need to develop and implement measures to reduce mortality, including through the use of forecasting and risk assessment, as well as strengthening therapeutic and preventive measures, including the optimization of work and rest regimes of employees. Ethics. The study did not require the conclusion of the Ethics Committee.

Indicators of the emergence of hazardous production situations in the integrated monitoring data of the state of mining operations

Research relevance. Studies of the causes and mechanism of hazardous production situations origin and development at coal mining enterprises have shown that their development is most often due to organizational factors, and the prerequisites for their occurrence are associated, to a greater extent, with process flow factors of mining operations, including design decisions. For this reason, it became necessary to establish specific process flow factors that are prerequisites for the emergence of hazardous production situations at a coal pit. Research objective is to establish the factors of hazardous production situations occurrence; to identify and justify indicators of hazardous production situations origin, obtained based on an assessment of the general state of mining, to take into account appropriate scenarios for preventing or avoiding the hazardous production situations in the course of development; to diagnose early signs of their occurrence and eliminate the causes of their development. Methods of research. The state of mining in the coal pit and operations on production safety were assessed from the perspective of hazardous production situations origin and development and was carried out during the process audit. Indicators of the state of the deep pit working area were formed based on the analysis of data from geographic information monitoring of mining, safety rules, as well as process flow diagrams of mining operations. Results. Based on the results of the process audit of the state of mining operations, the factors that are prerequisites for the development of hazardous production situations are determined. They became the basis for the selection of process flow and organizational indicators of hazardous production situations occurrence. The conditions for hazardous production situations occurrence are defined, depending on the presence of objective natural, process flow and organizational factors affecting the safety of work. Conclusions. Open-pit coal mining is naturally accompanied by the emergence and development of hazardous production situations. It is proposed to monitor the prerequisites of hazardous production situations by process flow and organizational indicators in order to make adequate management decisions to prevent the occurrence of hazardous incidents.

Multi-dimensional safety risk assessment on coal mines under the profitability dilemma

China is a major coal producer, with huge differences in coal production and safety situations between the South and the North. Taking province A as an example, its coal enterprises have low output, poor efficiency, backward equipment, and low-quality personnel. The output accounts for 0.08% of the country, and the number of deaths accounts for 2.2% of the country, the safety situation of coal enterprises in province A is severe. In order to study the safety risk situation of coal mines under difficult conditions, this paper screens 98 factor indexes including multiple subjects such as enterprise managers, front-line workers, government supervisors, external environment, work quality, stress factors, economic factors, and other dimensions. For different data, the indicator weights were calculated using triangular fuzzy number, entropy weight method, CRITIC method, and three rough set methods in a total of six methods. The comprehensive weights of the indicators were obtained using the proposed new comprehensive weight method. The current situation of safety work of four coal mining enterprises and three levels of government supervision departments was evaluated, and the evaluation results were compared with other existing data to verify the reliability of the evaluation system. The horizontal comparison of the evaluation results indicates the main problems of each subject; the longitudinal comparison points out the problems that need to be solved with the assistance of higher-level enterprises and the central government, and corresponding suggestions for coal mining enterprises and government departments are put forward to reduce the safety risks of troubled coal mining enterprises.

A case control study on the relationship between occupational stress and genetic polymorphism and dyslipidemia in coal miners

Dyslipidemia is one of the known risk factors for cardiovascular disease, and its prevalence is increasing worldwide. At present, the study of dyslipidemia has gradually shifted from simple environmental or genetic factors to environment-gene interactions. In order to further explore the etiology and mechanism of dyslipidemia, we used occupational stress(OS) and LYPLAL1, APOC3 and SOD2 gene as research variables to explore their association with dyslipidemia.Here we used a case-control study to include Han workers from a coal mining enterprise in China to determine the association between study variables and dyslipidemia. Monofactor analysis showed that smoking, drinking, physical activity level, DASH diet score, sleep quality, BMI, hypertension, hyperuricemia, shift work, OS were significantly different between the two groups (P < 0.05). In the APOC3 rs2854116 dominant model, patients with CT/CC genotype had a higher risk of dyslipidemia than those with TT genotype. In SOD2 rs4880 recessive model, patients with GG genotype had a lower risk of dyslipidemia than those with AA/AG genotype, and the difference was statistically significant. We found that rs12137855 and OS, rs2854116 and OS, rs4880 and OS had joint effects, but no interaction based on the multiplication and addition model was found (Pinteraction > 0.05). GMDR model showed that the rs12137855-rs2854116-rs4880-OS four-factor model had the highest cross-validation consistency and training-validation accuracy (P < 0.05), suggesting that there was a high-order interaction between them associated with dyslipidemia. We found that dyslipidemia in coal miners was related to OS and genetic factors. Through this study, we revealed the dual regulation of environmental factors and genetic factors on dyslipidemia. At the same time, this study provides clues for understanding the etiology and mechanism of dyslipidemia.

PROSPECTS FOR IMPROVING THE COST ACCOUNTING SYSTEM AT COAL MINING ENTERPRISES OF UKRAINE

Abstract. The article presents the relevance and timeliness of the study concerning the prerequisites for improving the cost accounting system in coal mine enterprises in Ukraine. Future income in coal mine enterprises depends on from expenses. That’s why this situation requires constant work on solving the tasks of optimizing the level of costs and ensuring the sustainability of enterprises. The most important factor of development of enterprise is perfect accounting and management of production costs. The empirical basis was measures of coal mines of the state enterprise Lvivvukhillia, in particular the mines: «Velykomostivska», «Lisova», «Chervonogradska», «Mezhyrichanska», «Stepova». The result of research showing the existing cost accounting system at the coal mining enterprise does not have a perfect classification of all enterprise costs and their reflection on accounting accounts. The scientific significance of the article shows as to possibility to analyzing different new methods and approaches of cost accounting in the word and use the best practice in Ukrainian cost accounting at the coal mine enterprises. The practical significance of the publication involves in building effective system of cost accounting and management. This will make it possible to properly organize accounting at enterprises with a high level of production cost. The author proves that cost accounting system provides cost accounting, calculation, and cost control of cost objects. The functioning of this system depends on the established interaction between the elements of the system, which are the classification of costs, accounting objects, the accounting method, the order of distribution of indirect costs, the assessment of work in progress, the object and method of costing products, etc. It is the information that is formed in the cost accounting system that serves as the basis for the formation of management decisions regarding changes in the volume of production, assessment of cost indicators, financial results and pricing of a coal mining enterprise. Cost accounting at coal mining enterprises should be based on clear methodological recommendations that will help optimize production processes to determine the correct way to manage cost. Key words: accounting, coal, cost, cost accounting system, depreciation, expense, life cycle costing, mine, total quality management.

Safety Improvement of Sustainable Coal Transportation in Mines: A Contract Design Perspective

Considering safety management systems are composed of a coal mine enterprise and a manager, incentive contracts for coal mine production are designed to improve the safety level of coal mine production. Managers must devote costly efforts in terms of both safety and production to increase the output of mines. Based on principal–agent theory, we designed an incentive contract considering moral hazard and a menu of contracts considering moral hazard and adverse selection. The results showed that when an enterprise cannot observe the manager’s efforts, the manager’s risk aversion reduces their production and safety efforts, and the enterprise needs to share its output risk with the manager. When the enterprise cannot observe the manager’s efforts and the cost type of the safety effort, a menu of contracts can be used to screen the manager’s cost type. However, high-cost contracts fail to motivate a high-cost manager and allow the high-cost manager to reduce safety and production efforts. A low-cost manager can obtain positive information rent from an enterprise without changing safety or production efforts. We provide some suggestions and references for the safety management of coal transportation in mines.

Evaluation of the Efficiency of Wastewater Treatment of a Coal Mining Enterprise and its Impact on the Pollution of Small Rivers

The analysis of the qualitative composition of the waste water of the coal mining enterprise was carried out. As a result of monitoring studies, data on the composition of pollutants discharged into the water of small rivers were obtained. It is established that the feature of quarry waters is an increased content of suspended solids (inorganic dust) from drilling, blasting, overburden and mining operations; petroleum products from oil and fuel spills; nitrites and nitrates formed when using explosives; iron formed as a result of the oxidation of pyrite (often found in the host rocks), metal structures and parts of equipment and sulfates. The applied technology of wastewater treatment at a coal mine is considered, and its effectiveness is justified. It is shown that the main problem in the field of water resources protection is the lack of adapted technologies for deep wastewater treatment in relation to a specific enterprise. The ways of improving the technological level and quality of treatment of quarry wastewater are determined.

Construction of Emergency Culture and Safety Evaluation Index System Based on Behavioral Safety "2-4" Model

With the frequent occurrence of production safety accidents in enterprises in China, it has become a broad consensus of the whole society to attach importance to the emergency management of production safety in enterprises. Taking the coal mine as an example, the frequent safety accidents in coal mine enterprises have seriously affected human health, safety and environment, highlighting the fragility of safety management and safety culture construction in coal mine enterprises. To fundamentally reduce or eliminate the occurrence of safety accidents in coal mining enterprises, the most important and effective safety management strategy is to build a long-term safety culture. The "2-4" model of behavior safety is introduced into the construction of coal mine emergency culture, hoping to further reduce coal mine safety accidents and build an evaluation system of enterprise culture construction with the characteristics of coal mine industry. In the development stage of coal mine, a reasonable mining plan should be made, and comprehensive preparations should be made. In the tunneling stage, the construction safety and progress should be strictly managed and supervised. It will be beneficial to the standardization and scientific development of coal mine commercial enterprise culture, is the inherent requirement of building advanced enterprise culture, and promotes the safe and healthy development of coal mines.

ОЦІНКА ТЕХНОГЕННОГО ТА ЕКОЛОГІЧНОГО РИЗИКУ ЗА КРИТЕРІЄМ ЕКОЛОГО-ЕКОНОМІЧНОЇ ЕФЕКТИВНОСТІ ВУГЛЕВИДОБУВНИХ ПІДПРИЄМСТВ ДОНЕЦЬКОЇ ТА ЛУГАНСЬКОЇ ОБЛАСТЕЙ

The peculiarities of the geological and technical conditions of the coal deposits of the Donetsk coal basin, which are concentrated within the Donetsk and Luhansk regions, are revealed. The main indicators are given and an analysis of the technical and economic state of the coal industry is performed using the example of the main coal mining enterprises of the studied territories. An assessment of the complex impact on the surrounding natural environment сreated by the main coal-mining enterprises was carried out, based on a detailed examination and identification of a number of factors of the creation of man-made load within the limits of technology technical complexes of coal mining facilities. The assessment of technogenic and environmental risk based on the criteria of ecological and economic efficiency of coal mining enterprises of Donetsk and Luhansk regions made it possible to form the first approximate, but scientifically based ideas about the profitability (unprofitability) of coal mining activities of some enterprises, which is the basis for the further development of recommendations on consistency and expediency closing of mines in order to reduce the technogenic load. The article analyzes and uses data from the official environmental reporting of coal-mining enterprises, data from the Geoinform Ukrainy State Research Institute, the Ministry of Energy, the State Statistics Service, and scientific and methodological sources. According to the results of the assessment of the parameter of ecological and economic efficiency of enterprises and analysis of its influence on the formation of ecological safety of production, none of the main coal-mining enterprises of Donetsk and Luhansk regions is considered ecologically safe. Enterprises of SE "Lysychanskvugilya", SE "Pervomaiskvugilya" (Luhansk region), as well as enterprises of SE "Myrnogradvugilya" and SE "Selydivvugilya" (Donetsk region) are characterized by the lowest value of the coefficient of optimality of technological processes and are classified as extremely environmentally dangerous enterprises according to the results of the assessment.

Перспективна сировинна база процесів виробництва синтетичного рідкого палива з українського вугілля

The article considers the issue of raw materials for the production of synthetic liquid fuels from coal, which is relevant for Ukraine, which has relatively small oil deposits, but fossil coal reserves reach 50 billion tones. It is shown that the coal raw material base for industrial production of synthetic motor fuel in Ukraine should be based on low-metamorphosed coal of B, D, DG and G grades, which prevails in existing geological deposits and is characterized by proper reactivity due to the high oxygen content in the organic mass and the presence of reactive oxygen-containing groups: hydroxyl –OH, carbonyl =C=O and carboxyl –SOC. Due to the systemic crisis in Ukrainian coal industry, there are currently no free resources of raw materials to support new production. This necessitates the restoration or creation of new coal production facilities in the main industrial regions of Ukraine. To create them in eastern Ukraine, it is advisable to base the raw material base of the process on long-burning coal from the Lozova district of western Donbas. To ensure the raw material base for production in the regions of the Centre, it is necessary to restore the coal mining enterprises of the Dnipro lignite basin, primarily the Kostiantynivskyi mine, on a new technical basis. The raw material base for industrial production of synthetic motor fuels from coal in the Western region can be secured by completing the development of the design industrial capacity of Novovolynsk mine No. 9 or by developing the coal of the Tyaglivske deposit. The final choice of the option should be made based on the results of additional feasibility studies. Keywords: low-metamorphosed coal, synthetic motor fuel, Lozova coal-bearing area of Western Donbas, Dnipro lignite basin, Tyahlivske deposit. Corresponding author V.V. Shulga, e-mail: ko@ukhin.org.ua

煤炭企业数字化发展阶段评价及转型建议

煤炭企业数字化发展阶段评价及转型建议