Table of Content

30 June 2024, Volume 34 Issue S1

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Safety science theory and safety system science Safety social science and safety management Safety engineering technology Public safety Technology and engineering of disaster prevention and mitigation Emergency technology and management

Safety science theory and safety system science

Research on 4M barrier theory model construction and mechanism for risk management and control of power generation enterprises

SONG Zhangjun

2024, 34(S1):  1-7.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0006

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In order to effectively curb accidents, strengthen the guidance and support role of safety theory in power safety production, and overcome the mismatch between foreign theories and existing safety theory models that cannot meet the actual needs of complex power safety production, local characteristic power safety production management theories and models were constructed. Based on various advanced causal chains, causes of accidental energy release accidents, nuclear power protection barriers, and 4M barrier theories in China and abroad, combined with the objective reality of the safety production site of the power generation enterprise of CHN Energy Group and years of risk control experience, the reverse thinking of accidents (accident causes) and the positive thinking of risk pre-control (barrier control) were combined to propose the 4M barrier theory of machine & material, man, medium, and management in safety management of power generation enterprises. Through dynamic modeling, the internal accident evolution roots and prevention and control laws were analyzed, and the internal logical relationships of each element were sorted out. The results show that this theoretical model can provide a relatively systematic and new risk pre-control concept and methodology for power generation enterprises to establish a sound safety production risk management system by clarifying the risk and its barrier control objects and analyzing the accident development process and its causes.

Safety social science and safety management

Research on risk assessment and early warning of safety management in thermal power enterprises based on AHP

CHEN Cheng, WANG Hua, LI Qiang

2024, 34(S1):  8-13.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0005

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In order to verify the scientific rationality of the risk assessment database of safety management and early warning mechanism for thermal power enterprises and achieve the controllability of safety risks in thermal power enterprises, an indicator system of safety management risk assessment was constructed, and an evaluation model for safety management risks in thermal power enterprises was established. The AHP modeling was used to analyze and evaluate the indicator system and determine the safety management risk level and weights for thermal power enterprises. Early warning strategies for safety management in thermal power enterprises were proposed, and the reliability of the results was validated through examples. The results show that the risk assessment database of safety management can assess and warn of potential accident risks in advance and automatically provide control and corrective measures and plans, thereby eliminating accidents in their early stages, reducing the frequency of accidents, and improving the level of safety production management.

Application and practical exploration of Shengli Energy safety culture construction model

ZHANG Jimiao, LI Qiang

2024, 34(S1):  14-20.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0045

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In order to play the important role of safety culture in preventing coal mine accidents and avoid the disconnection between safety culture and safety management, the current safety culture status of Shengli Energy was analyzed. On this basis, the 4-level safety culture model was applied to analyze the construction ideas and contents of the concept culture covering the two supreme principles of ″people-oriented″ and ″safety first″, the institutional culture of ″compliance with laws and regulations, clear responsibilities, and integration and innovation″, the behavioral culture of ″compliance with regulations, self-discipline, and responsibility″, and the material culture of ″advanced equipment, complete protection, visual standardization, and beautiful environment″. A safety culture system was established for Shengli Energy, and a standardized and replicable safety culture construction model was formed. The results show that the on-site application effect is good, and the mechanical and electrical injury risk rate in the enterprise has been lowered to 5% or less. The fault rate of flammable and explosive devices has been lowered to 3% or less, which has a certain reference value for the construction of safety culture systems for national coal enterprises.

Occupational safety and psychological health analysis of heavy-haul locomotive crew

ZHANG Zhe, ZHAO Kaigong, ZHENG Yun, MENG Ting, LI Changming, LI Yansu

2024, 34(S1):  21-26.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0021

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In order to protect the psychological health of heavy-haul locomotive crew and explore the level of psychological health and influencing factors of heavy-haul locomotive crew, a sampling survey was conducted on the health and performance data of locomotive crew. First, the psychological health characteristics corresponding to safety performance were extracted, and psychological standards for the crew were developed. Then, the characteristics of the sampling objects were collected and counted, and influencing factors were analyzed. The results show that the safety attitude and safety thinking of heavy-haul locomotive crew are significantly higher than those of other job groups. At the same time, the psychological state of the heavy-haul locomotive crew is positively correlated with their level of education and negatively correlated with their sleep quality. Meanwhile, conducting psychological state assessments for the heavy-haul locomotive crew is helpful for normalizing psychological health monitoring. By constructing a full-cycle psychological health indicator for key positions, a new method for evaluating the psychological health of heavy-haul locomotive crew is developed, and it can serve as a reference for other industrial and mining enterprises to evaluate the psychological health of key position groups.

Psychological state and safety perception of frontline workers in new energy wind power industry

WANG Yanshuang, CHEN Lili, ZHANG Ophelie, ZHANG Hailong

2024, 34(S1):  27-32.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0022

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To prevent safety accident risks caused by human factors, a comprehensive survey was conducted on the psychological state of frontline operation and maintenance personnel in the new energy wind power industry. Firstly, the evaluation group and method of psychological health state and safety psychology were selected. Then, the current situation and characteristics of psychological health in the industry were summarized. Finally, relevant analyses were conducted from the perspectives of safety climate and team psychological safety. The survey results show that over half of the employees have poor or sub-optimal general psychological health, among which depression is a prominent issue. Employees have a high level of recognition for the company's safety regulations, but their sense of psychological safety within the team still needs to be strengthened. It is recommended to conduct psychological intervention through an employee assistance program to promote psychological health status and team psychological safety.

Study on operation of safety management system in coal chemical enterprises

WANG Chen

2024, 34(S1):  33-38.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0046

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In order to improve the safety risk management level of coal chemical enterprises and eliminate safety management shortcomings, the production characteristics and safety risks of the coal chemical industry were analyzed. Based on the actual situation of the enterprises, the operation practice of the safety management system in coal chemical enterprises was discussed, covering the operation mode of the system, system operation planning, and implementation and operation effect of key elements of the system. From the aspects of safety leadership, system construction, safety risk management, unsafe behavior management, and system operation effectiveness, the ideas and methods for the operation of the safety management system in coal chemical enterprises were systematically elucidated. The results show that the operation ideas and modes of the safety management system in coal chemical enterprises combine multiple safety systems in the chemical industry, with comprehensive safety management elements and effective system operation. It can improve the safety risk management level of coal chemical enterprises and has practical and promotional value.

Research on key factors of hidden dangers in coal mines based on Grey-DEMATEL

WANG Zhanbao, LIU Xiaojie, LIU Peng

2024, 34(S1):  39-45.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0020

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To effectively reduce the occurrence of coal mine accidents, a systematic analysis of key factors contributing to hidden dangers in coal mines was made by integrating grey theory with the decision-making trial and evaluation laboratory (Grey-DEMATEL) approach. By collecting extensive data on coal mine accidents and relevant literature, an indicator system encompassing multiple dimensions of hidden dangers in coal mines was established. Based on actual surveys and expert evaluations, 13 hidden danger indicators were constructed. The Grey-DEMATEL approach was then employed for quantitative analysis of these hidden danger factors, enabling the identification of causal and resultant factors associated with hidden dangers. The research findings indicate that the primary causal factors leading to hidden dangers in coal mines include inaccurate information transmission, overdue equipment maintenance, and workers' violations of safety protocols. The resultant factors of hidden dangers comprise equipment failures, environmental issues, and management deficiencies. By introducing grey theory, the improved Grey-DEMATEL model can mitigate the bias in weight calculations commonly found in traditional models, providing more accurate results for the identification and management of hidden dangers in coal mines.

Research and application of safety production standardization evaluation system for heavy-haul railway enterprises

ZHANG Wenshan

2024, 34(S1):  46-51.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0175

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In order to further improve the safety production management level of heavy-haul railway enterprises and consolidate the foundation of safety production management, the safety production standardization construction and evaluation system was introduced into heavy-haul railway enterprises to promote safety production standardization construction in heavy-haul railway enterprises. Through research and analysis, the basic principles, system composition, element framework, operational model, work procedures, and evaluation methods of safety production standardization construction were clarified, and research on the safety production standardization evaluation system for heavy-haul railway enterprises was carried out. The safety production standardization evaluation system was mainly composed of three parts: a list of veto items, a list of bonus points, and a list of evaluation elements and weights. The evaluation elements included three core elements, 40 first-level elements, and 190 second-level elements. At the same time, weight conversion solved the problem of how to evaluate the safety production standardization construction in some heavy-haul railway enterprises, which do not involve one or more first-level elements in the core elements within their business scope. The results show that the safety production standardization evaluation system effectively promotes the implementation of the main responsibilities of heavy-haul railway enterprises, as well as the systematization of safety management, standardization of job operation behaviors, intrinsic safety of equipment and facilities, and allocation of equipment in working environments, which strengthens the safety production management level of Xinzhun Railway Company.

Safety engineering technology

Dust control methods for coal handling system of coal-fired power plants

HUANG Jianxin, ZHAO Kaigong, HUANG Ting, ZHANG Xiaolei

2024, 34(S1):  52-58.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0036

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To solve the problem of coal dust leakage from the coal handling system of coal-fired power plants, by comparing different solutions, dust prevention and control equipment and technologies were adopted including curved coal fallout pipe, fully enclosed dust-removing guide chute, pulsed bag dust collector, and wet dust collector. The optimized solution for dust reduction and prevention of the coal handling system was put forward. The dust prevention and control system covering the whole operation process of coal fuel ″turning, stacking, picking, and transporting″ was formed and was applied in Suizhou Power Generation Project. The results of the study show that the method effectively reduces the spillage of coal dust in all aspects of coal fuel transfer and basically realizes a dust-free operating environment and clean fuel transport. It provides a feasible dust prevention technology for controlling the coal dust pollution produced during the operation of the coal handling system.

Non-linear creep damage model of mudstone at soft rock slopes in open-pit coal mines

MEN Shuchen

2024, 34(S1):  59-64.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0027

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In order to solve the stability problem caused by low strength and significant creep characteristics of soft rock in slope engineering of open-pit coal mines, the creep deformation characteristics and constitutive model of soft rock were studied. By taking the mudstone of an open-pit coal mine in eastern Inner Mongolia as the research object, based on the results of the triaxial creep test and the analysis of the traditional Burgers creep model, a new non-linear five-element creep damage model was established by introducing a strain-triggered non-linear dashpot. According to the principle of least squares, the parameters of the improved creep damage model were identified. The results show that the improved Burgers creep damage model has a fitting coefficient with the experimental data, which can fully describe the creep deformation characteristics of mudstone in the whole stage, especially in the accelerated creep damage stage. The fitting degree of the improved creep damage model is obviously better than that of the traditional Burgers creep model.

Research on pilot boarding and disembarking device based on offshore automatic stabilization platform

SUN Baochang

2024, 34(S1):  65-71.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0013

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In order to fundamentally reduce the risk caused by climbing the pilot's ladder, a pilot boarding and disembarking device based on the offshore automatic stabilization platform was proposed. The device was composed of an attitude/motion measurement system, stability compensation control system, hydraulically driven automatic stabilization platform, and auxiliary pilot channel. Through the real-time and efficient parallel six-degree-of-freedom stability compensation algorithm of the automatic stabilization platform, the parametric design of the parallel mechanism based on the hull with the equipment and sea conditions, and the complex algorithm of system safety and reliability design, the stability of the device in the boarding and disembarking process was realized. The results show that the device can realize the essential safety of pilot boarding and disembarking, and the pilot can directly board and disembark the ship without using the pilot's ladder, reducing the risk of boarding and disembarking under heavy storm weather and fundamentally eliminating the safety hidden danger caused by improper placement of the ladder.

Dust migration characteristics of mixed ventilation in drainage corridor constructed by TBM method

HE Shaoyun, LIU Xiaoxuan, WU Xiaolin, WANG Fuli, TANG Xiao

2024, 34(S1):  72-78.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0029

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In order to solve the problems of serious dust accumulation and insignificant effect of ventilation and dust removal during the construction by full-section hard rock TBM method in the drainage corridor, the construction project of the drainage corridor of Jinyun Pumped Storage Power Station in Zhejiang Province was studied. Firstly, a three-dimensional model of the drainage corridor was established and meshed. Through mixed ventilation, the numerical simulation software Fluent was used to study the migration characteristics of airflow and dust. Then, by taking the three ventilation parameters of the distance between the dust removal air duct and the tunnel face, the distance between the ventilation air duct and the tunnel face, and the wind speed and pumping pressure ratio of the double duct as variables, the influence of the three parameters on the dust removal effect was explored respectively, and the three ventilation parameters were optimized. Finally, three preferred values were taken as the preferred scheme for field measurement to verify the dust removal effect of the scheme. The results show that the tunnel airflow presents different regions such as the jet zone, vortex zone, and recirculation zone. Dust diffusion is serious when forced ventilation (single ventilation duct) is adopted for energy saving. With the increase in the distance between the dust removal air duct and the ventilation air duct from the tunnel face, the dust mass concentration decreases first and then increases, and when the respective distances are 10 m and 12 m, the dust removal effect is better. When the pumping pressure ratio is 2, the dust removal effect is further improved. Compared with the original ventilation scheme, the optimized scheme achieves an average dust reduction rate of more than 95%, and the dust mass concentration in the staff concentration area is reduced to less than 2 mg/m³, which meets the relevant standards.

Research on application of informatization in safety management of power generation enterprises

WANG Lichun

2024, 34(S1):  79-83.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0002

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In order to effectively leverage the role of information technology in the safety management of power generation enterprises, the current situation of information management systems and power enterprise safety management was analyzed from the perspectives of group companies and grassroots enterprises. In response to key and difficult issues such as safety education, outsourcing management, and risk control, the construction of a safety credit management information system was proposed, which used technologies such as photography, recording, and positioning to automatically record the behavior of personnel at all levels in fulfilling safety responsibilities, providing decision-making basis for improving the safety management of power enterprises. The results indicate that the construction and use of a safety management information system can significantly reduce safety management costs, effectively conduct performance evaluations, identify weaknesses in safety management, and predict potential safety risks.

Design and application of coal mine disaster monitoring and early warning platform

REN Wenhua

2024, 34(S1):  84-89.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0011

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In order to improve the current situation of single disaster monitoring methods, weak early warning analysis capabilities, and untimely disaster disposal in mines, a single disaster classification and early warning model for gas, water, fire, roof, and dust was established based on the analysis method of formation mechanism. Through mathematical and statistical methods, the changing trends of data characteristic graphs of disaster monitoring data such as sudden changes, gradual increases, fluctuations, periodic changes, and constant changes were analyzed. Accordingly, a disaster fusion and early warning analysis plan was proposed. A disaster monitoring and early warning platform construction plan was designed. The on-site application of the platform in the Huangbaici Coal Mine of Wuhai Energy Company was analyzed from the perspectives of hardware and software deployment. The results show that the multi-disaster fusion and early warning analysis scheme based on the disaster formation mechanism and characteristic graph analysis technology can realize the disaster source tracing, correlation, and transmission analysis and improve the accuracy of early warning. The method of real-time dynamic planning of disaster avoidance routes based on tunnel parameter calculation and Dijkstra’s algorithm can improve the escape efficiency of personnel in mine disasters.

New model for supervision of safety production training based on blockchain

LIU Qibin

2024, 34(S1):  90-94.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0113

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In order to effectively improve the quality and effect of safety production education and training, blockchain technology was utilized to design a safety production training platform and construct a new model for training supervision. By analyzing the current situation of the safety production training industry and the challenges it faces, the problems of production and operation units and training institutions, as well as the limitations of supervision means were discussed. The platform was divided into a data storage layer, a blockchain platform layer, a business logic layer, and a data display layer. The new model for supervision of safety production and training was analyzed. The results show that the use of blockchain technology in safety production training to build a new comprehensive supervision model can prevent data tampering and fraud, achieve trustworthy data storage and secure sharing, and effectively improve the efficiency and convenience of safety training and supervision work.

Multi-factor influence analysis on ability of cleaning mechanism for frozen and sticky coal under train car for safe operation

XU Xu, MA Pengfei, LIN Xuejian, LIU Qianshan

2024, 34(S1):  95-101.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0040

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In order to increase transportation efficiency, improve the safety of workers, and enhance cleaning efficiency, the discrete element modeling-multi-body dynamic simulation (EDEM-RecurDyn) method was proposed to analyze the cleaning ability of the cleaning mechanism. Firstly, EDEM-RecurDyn was used to analyze the stress changes of the hob, and the three factors that affected the stress of the hob were obtained: the rotating speed of the drum, the dragging speed, and the depth of cleaning. The reference range was determined. Then, the response surface was used to carry out the three-factor three-level test, and the cleaning energy consumption ratio was obtained by analyzing rolling. The quadratic fitting polynomial was carried out. Finally, based on Matlab, a particle swarm optimization algorithm was used to solve the parameters. The results show that when the drum speed of the cleaning mechanism is 78 r/min, the traction speed is 0.05 m/s; when the cleaning depth is 100 mm, the cleaning mechanism is subjected to the least resistance and the lowest energy consumption.

Research on high directional and long drilling technology for extracting pressure relief gas in slowly inclined coal bed

SHUANG Haiqing, LIU Zijia, LIN Haifei, ZHOU Bin, ZHANG Wenqi, LUO Yonggang

2024, 34(S1):  102-108.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0024

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In order to investigate the spatio-temporal evolution of mining-induced fissures and change characteristics of pressure relief gas-enriched area in the overlying rock of the slowly inclined coal bed, physical similarity simulation and field monitoring method were used to analyze the evolution and distribution characteristics of the fissure in the overlying rock. The evolution characteristics of the pressure relief gas-enriched area were studied to determine the parameter arrangement scheme of the high directional drilling holes, and the effect test was carried out. The results show that the test working face has a height of 13 m along the caving zone of the coal bed, and the height of the fissure zone is 68.5 m. The fissure network along the working face is affected by the inclination angle of the coal bed, and the fracture angle of the working face is 54°-59°. The openness of the fissure development is gradually increasing upward from the working face, and the gas transportation channel is asymmetric. The whole life cycle of the gas extraction process by high directional drilling can be divided into the early stage of extraction, the middle stage of extraction, and the end stage of extraction according to the extraction volume fraction. In the early stage of extraction, the volume fraction is low. The middle stage of extraction has high efficiency in the whole life cycle of extraction. In the late stage of extraction, the volume fraction shows a sharp decline. After the implementation of the high directional and long drilling technology, the volume fractions of the gas in the upper corners of the working face and in the return-air tunnel are all less than 0.8%, indicating a good effect of the gas extraction, and the arrangement of the high drilling holes is reasonable.

Comprehensive gas treatment technology practice for 81305 comprehensively drained working face in Baode Coal Mine

YUAN Baofa

2024, 34(S1):  109-114.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0116

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In order to realize mining in high gas mines in low gas states, a set of comprehensive gas treatment technology based on over-pre-pumping of coal seam gas, pumping while mining, and pumping and mining in the goaf area was proposed. The comprehensive gas treatment technology and measures for 81305 comprehensively drained working face in Baode Coal Mine were introduced, and the comprehensive gas treatment measures were recorded in detail, such as pre-pumping before mining of the present coal seam, switching between downdraft and updraft, pumping and drainage by buried pipeline in goaf area, pressure equalizing, air guide curtain and negative pressure spray setting, rationally distributed air flow, and closing at the end of mining. The results show that the volume of the gas pumping and drainage in the 81305 working face has reached a total of 18.549 1 million m³, and the comprehensive pumping and drainage rate has reached 81.07%, indicating excellent application effects. The comprehensive gas treatment technology combining various pumping and drainage methods can make the gas concentration in the comprehensively drained working face in Baode Mine safe and controllable during mining.

Structure of overlying strata on isolated island working faces with different mining degrees and anti-impact application

DONG Huadong

2024, 34(S1):  115-121.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0008

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In order to ensure the safe mining of isolated island working face with impact ground pressure, the isolated island working face mining under the condition of a thick and hard rock layer in a mine was taken as the background. Based on the key layer theory of rock layer control and the viewpoint of the spatial structure of overlying strata, the basic characteristics of the spatial structure of overlying strata formed in the isolated island working face were studied through case study, theoretical analysis, and on-site monitoring, as well as the monitoring and identification method and its anti-impact mining design. The formation process and distribution characteristics of the spatial structure of Γ-type overlying strata were identified, and a mechanical model of reasonable width of the isolated island working face under the spatial structure of Γ-type overlying strata and with the abutment pressure as the main assessment index was established and applied for verification. The results show that the isolated island working face under the condition of one side being fully mined and the other side not being fully mined can form a spatial structure of Γ-type overlying strata with the overlying thick key layer, and the implementation scheme proposed in the paper meets the requirements of the field engineering and can ensure normal mining.

Practice and analysis of safety risk control for chemical research and experimental equipment

JIN Jie, LIU Ya, WANG Fubao

2024, 34(S1):  122-128.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0014

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In order to further improve the safety risk control capability of chemical research and experimental equipment, the causes of chemical research and experiment safety accidents in recent years were analyzed. Based on the current management practice of chemical research and experimental equipment, the safety risk control throughout the full life cycle from various aspects was implemented, such as feasibility study, design, construction, trial operation, and scrapping. The focus was on exploring the three main aspects of early safety review, equipment design, construction management, and operation safety management. By comparing the risk control of relatively mature hazardous chemical construction projects, the weak links and prominent problems in the chemical research and experimental equipment were analyzed. The results indicate that the safety risk control of chemical research and experiments is a systematic project that should fully draw on the experience of safety risk control in hazardous chemical construction projects. Scientific research and experimental equipment should be classified and reviewed for safety access control. Through source safety review, specification management design, construction quality control, confirmation of safety conditions during operation, equipment and facility management, hazardous chemical management, and other full process risk control measures, safety risks can be minimized to the greatest extent, providing references and choices for risk management of scientific research and experimental equipment.

Analysis of actual chemical project safety inspection and improvement

JIANG Haifu, NA Guoliang, SUN Guihua

2024, 34(S1):  129-133.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0044

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To study the key points of process safety management in chemical infrastructure projects and carry out targeted safety management, the safety inspection of a gasification unit during construction in a chemical project of an energy group was studied. The entire process safety records of the project were collected, classified, organized, statistically analyzed, compared, and inspected. The key and difficult points of project safety management were summarized by comparing the types and quantities of safety hazards in each unit, the number of hazards per contract valuing million yuan, the distribution of various types of safety hazards, the distribution of safety hazards in each unit, and the comparison of safety hazards in similar units. The research shows that safety protection is the type of safety hazards that generate the most hazards during project construction, and reducing the number of such safety protection hazards can effectively improve the level of project safety management. The safety management level of each construction unit varies, and each construction unit has its own management characteristics. The list of qualified contractors should be further improved through contractor evaluation. It is also necessary to establish a qualified contractor database and record the advantages and disadvantages of contractor safety management, so as to facilitate targeted safety management in future projects.

Research on safety condition monitoring technology of drilling rigs based on digital twins

WANG Han

2024, 34(S1):  134-139.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0039

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In order to prevent safety accidents caused by fatigue failure of mining drilling rigs due to overload, a safety condition monitoring technology of drilling rigs based on digital twins was studied. First, the overall framework of the digital twins-based monitoring system for safe operation conditions of drilling rigs was proposed, and then a real-time analysis method of drilling rig stress conditions based on a proxy model was studied. The finite element method was used to obtain stress distribution and amplitude data sets of the rig overturning frame, which were used for training and testing the proxy model. The results show that the maximum difference between the large-scale stress value calculated by the finite element method and the predicted value by the proxy model does not exceed 5×10^-6 MPa. The absolute variance of the difference between the predicted values and the calculated values at all nodes is about 2×10^-6 MPa. This shows that the proposed proxy model can be used instead of the finite element method to analyze the real-time stress of the rig overturning frame.

Design of an intelligent coal mine safety control platform based on 5G technology

ZHANG Shuanmin, SHI Hongkai

2024, 34(S1):  140-147.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0023

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In order to solve the problem that the information silos caused by the narrow bandwidth and long delay of the network in the fully mechanized coal mining face in the coal mine fail to meet the needs of intelligent mining, the 5G communication technology with high bandwidth and low delay was proposed to upgrade the industrial control system and design an intelligent coal mine safety control platform. Firstly, based on the design concept of an intelligent coal mine safety control platform, the overall architecture of the intelligent coal mine safety control platform was introduced, and the coal mine safety information processing mechanism was analyzed. Then, a coal mine safety risk analysis index system was constructed, and an improved particle swarm optimization algorithm was used to optimize a multi-layer feedforward neural network to determine the level of coal mine safety risks. Finally, based on 5G communication technology, the intelligent remote control of coal mines was achieved by combining geological data and video analysis of the coal mining face, 5G remote control, personnel safety assurance, and digital twin systems. Research has shown that the intelligent coal mine safety control platform improves the storage, transmission, and processing efficiency of data streams, effectively avoiding the phenomenon of information silos between multiple systems and providing a new method for promoting the implementation of unmanned mining mode in coal mining faces and achieving efficient coal mine safety control.

Damage mechanism of circular chain considering safe operation of heavy-duty scraper conveyor

WEI Dezhi

2024, 34(S1):  148-155.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0041

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To study the damage characteristics of the circular chain of the scraper conveyor, a mathematical model was constructed for the sliding and rubbing wear and vibration impact damage of the circular chain for different damage modes. By using finite element analysis software to simulate and analyze the sliding and rubbing damage between chain links and that between the chain link and the middle groove, as well as the vibration impact damage during the circular chain transmission process, the damage characteristics of circular chains were explored. The research results indicate that under the simulation of sliding and rubbing damage between the chain link and the middle groove, the maximum force on the bottom of the chain link is 65.92 MPa, and the maximum wear depth is 0.55 mm. Under the simulation of sliding and rubbing damage between chain links, the maximum force at the chain link socket is 164.8 MPa. Under the simulation of vibration impact damage of chain links, the maximum stress value on the chain link gradually increases from 39.11 MPa to 52.61 MPa.

Fault signal detection method of roller bearings based on OVMD

MA Pengfei, YANG Haiou, WANG Shilong, LIU Lei, XIN Haotian

2024, 34(S1):  156-164.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0037

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The roller bearings of open pit belt conveyors face problems of low fault identification accuracy. To improve the accuracy and efficiency of fault diagnosis, a fault signal detection method of roller bearings with CPSO algorithm based on OVMD was proposed. Firstly, the excellent global optimization characteristics of CPSO were utilized, and the optimal parameter setting of the variational mode decomposition (VMD) algorithm was precisely locked to achieve effective parameter tuning of VMD. Then, VMD technology after parameter tuning was used to process the vibration data, and specific frequency band signal components were accurately extracted from the vibration data. Finally, the sparse maximum harmonic noise ratio deconvolution (SMHD) technology was used to purify the above frequency band signals, which significantly enhanced the identification accuracy of the fault characteristics of roller bearings of belt conveyors. The results show that CPSO has better performance for VMD improvement than other VMD optimization algorithms. The VMD algorithm after CPSO optimization combined with SMHD can successfully identify the specific fault points of the inner and outer rings of the rolling bearings under complex working conditions and determine the specific damage forms of the bearings.

Intelligent monitoring of slope sliding with improved Harris corner point algorithm

LU Peng, WANG Zhanbao, YU Meijiao, ZHANG Renyong, WU Yanqing

2024, 34(S1):  165-171.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0028

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In order to reduce the serious threat of slope sliding and the geologic disasters they cause to property safety, a novel slope sliding monitoring method was proposed by using a matching algorithm based on the improved Harris corner point detection technique. First, an image processing model for predicting slope sliding displacement was constructed by optimizing the Harris corner point detection; then, based on the calibrated template, the changes in the location of the corner points were monitored to accurately estimate the sliding displacement and track its trajectory, so as to effectively monitor the movement of the slope; finally, a modularized test environment was constructed to monitor slope sliding conditions. The results show that the method reduces the generation of pseudo-corner points in slope monitoring and identification, improves the accuracy and efficiency of corner point detection, and effectively records the tiny sliding of the target in the horizontal, vertical, and inclined directions to form trajectory tracking results.

Construction and application of double-prevention digital platform for coal chemical enterprises

LI Zhiwei, HUANG Qizhong, ZHAO Kaigong, ZHANG Xiaolei

2024, 34(S1):  172-178.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0007

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In order to solve the problems of imperfect construction of risk classification control mechanism, low informatization level, and insufficient employee participation in the construction of double-prevention mechanism in coal chemical enterprises and build a long-term double-prevention mechanism for enterprises, firstly, the design idea, system architecture, and function module of the digital platform were described in detail. Then, with risk classification control and hidden danger investigation and management as the core, data collection, intelligent analysis, early warning, task distribution, progress tracking, and other functions were integrated to realize the digital management of the whole process of safety production of coal chemical enterprises. Finally, combined with specific cases, the application effect of the double-prevention digital platform in coal chemical enterprises was evaluated. The results show that the platform can provide enterprises with a standardized and intelligent closed-loop management system from the aspects of risk identification and assessment, classification control, and hidden danger investigation and management, and it achieves good application effects in risk management and control, hidden danger investigation, and main responsibility implementation. The platform can grasp the risk dynamics in real time, discover and eliminate hidden dangers in time, improve the emergency response speed, and reduce the accident rate. It can provide a new idea for the informatization and intelligent construction of the double-prevention mechanism of coal-to-oil coal chemical enterprises and provide a reference for the construction of the double-prevention digital platform of other industrial and mining enterprises.

Safety evaluation model of electromechanical equipment in coal mines based on AHP-TOPSIS method and its application

ZHANG Yanghang

2024, 34(S1):  179-184.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0025

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There are many and complex factors influencing the safety status of electromechanical equipment in coal mines, and it is difficult to identify the potential safety hazards. To address these issues, a comprehensive safety evaluation model of electromechanical equipment in coal mines based on AHP-TOPSIS method was proposed. According to the cause theory of electromechanical equipment accidents in coal mines, 20 evaluation indexes were selected from four aspects of human factors, electromechanical equipment maintenance, management organization, and working environment, and the safety status evaluation index system of electromechanical equipment in coal mines was constructed. Then, the AHP method was used to calculate the weight of each index, and the TOPSIS method was used to calculate the relative nearness degree between the sample and the ideal solution. The index weight was coupled with the relative nearness degree, and the safety level of electromechanical equipment in coal mines was predicted. Finally, the model was applied to a mine of Shanxi Coal Group. The results show that the safety level of electromechanical equipment in the coal mines mine is Level Ⅱ. According to the prediction results, the potential safety hazards are identified by reverse order analysis, and the analysis results are in line with the actual situation.

Distribution characteristics of three zones of spontaneous combustion in goaf area of gob-side entry retaining in shallowly buried and easily spontaneous combustion coal seam

SHANG Cunjiu, YANG Tenglong, ZHANG Yougang, WANG Shuaifeng

2024, 34(S1):  185-190.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0181

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In order to study the distribution characteristics of the three zones of spontaneous combustion in the goaf area of the gob-side entry retaining in the shallowly buried and easily spontaneous combustion coal seam, the variation laws of oxygen and temperature in the goaf area of the gob-side entry retaining were dynamically monitored by embedding high-pressure rubber hoses, high-strength steel pipe-protected optical fibers for temperature measurement, and monitoring beam tubes. With the help of numerical simulation software, the distribution range of the three zones of spontaneous combustion in the goaf area was determined. The results show that the oxygen concentration at the measurement points between the supports in the goaf area of the 31116 gob-side entry retaining shows an overall downward trend with the advancement of the working face, and the oxygen concentration at the measurement points in the return air channel is locally reversed due to the interference of air leakage at the corner. Based on the temperature measurement data of optical fibers, the temperature change cannot be used as the basis for the division of the three zones of spontaneous combustion in the goaf area of the gob-side entry retaining in Jinjie Coal Mine. Affected by the airflow migration and local air leakage, the oxygen concentration in the goaf area of the 31116 is slightly higher on the return air side than on the intake air side. Finally, it is obtained that the oxidation zone range on the intake air side of the 31116 is 140.4-313.3 m. In the middle part, the range is 201.2-351.6 m, and on the return air side, it is 153.2-328.1 m. According to factors such as the amount of residual coal in the goaf area and geological characteristics, it is comprehensively determined that the minimum advancing speed under normal production conditions of the working face is 3.3 m/d.

Identification and intrusion early warning of large-scale engineering vehicles in opencast coal mines based on YOLOv8 algorithm

SUN Guosi, MA Pengfei, WANG Weichun, GAO Puhao, ZHU Jianwei

2024, 34(S1):  191-198.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0032

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To ensure the safety of miners, protect equipment, and improve production efficiency, the identification and intrusion early warning technology of large-scale engineering vehicles in opencast coal mines based on multi-sensor information fusion was studied. Firstly, based on the overall technical framework and implementation method, the identification and detection method of engineering vehicles based on YOLOv8 was proposed. The software and hardware platform for detection was built in the opencast coal mine, and the identification accuracy of the engineering vehicle identification and detection method based on YOLOv8 was tested through a total of 6 300 sample datasets from on-site shooting and networks. The results show that the engineering vehicle detection model based on YOLOv8 can quickly and accurately identify multiple vehicle targets in the opencast coal mine, and the detection accuracy is more than 0.85, with a low missed detection rate. In addition, the incomplete vehicle image can be recognized. The engineering vehicle identification and intrusion early warning system studied in this paper provides vehicle identification and early warning hints for the working equipment to avoid safety accidents.

Risk analysis and countermeasures of wind turbine blade icing

LI Cunyi, ZHANG Bo, FAN Xiaoxu

2024, 34(S1):  199-204.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0117

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In order to promote the safe operation and safety management of wind turbines in icing areas during winter under the new situation, the safety risk of wind turbine falling ice, equipment operation risk, and power supply risk were analyzed, and they are the most serious risks of blade icing. Based on these risks, a comprehensive ice monitoring method based on the combination of blade ice thickness monitoring method and wind turbine operation data monitoring method was proposed, and the safe operation of the wind turbine was classified. This article elaborated on the design and construction process of the first composite coating anti-icing technology scheme for large-scale in-service wind turbines in China. The results indicate that the composite coating anti-icing technology solution can effectively solve the problem of wind turbine icing and can provide a reference for similar engineering projects.

Research on assessment methods of firefighting and rescue capability of coal chemical enterprises

ZHOU Hongtao, ZHAO Kaigong, ZHANG Xiaolei, KONG Yanyan, WANG Ruidi

2024, 34(S1):  205-211.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0035

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In order to scientifically assess the firefighting and rescue capability and put forward effective suggestions for the prevention and control of fire risks, a firefighting and rescue capability assessment system applicable to the characteristics of coal chemical enterprises was constructed based on the hierarchical analysis-fuzzy comprehensive model. The scientificity, applicability, and accuracy of the assessment index system and the model were verified through specific cases. The research results show that along with the booming development of China's economy and society, the scope of the firefighting and rescue task gradually presents a trend of diversification and complexity. In this ever-changing environment, whether firefighting and emergency rescue are able to respond decisively, accurately, and efficiently at critical moments is a key issue that needs to be solved in the current research. The assessment index system and the modeling method used can provide a new perspective for the firefighting and rescue capability building of coal chemical industry-related enterprises and provide decision support for firefighting and rescue capability building.

Fire detection technology in open-pit mines based on infrared images and target detection

YU Haicheng, TIAN Yu, LI Qingjian, LI Xinpeng, XUE Guoqing, ZHANG Yuhua

2024, 34(S1):  212-218.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0031

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In order to detect the spontaneous combustion of coal gangue in open-pit mines in time and avoid greater losses caused by the spread of fire, the technology of spontaneous combustion and fire detection in open-pit mines based on infrared thermal imaging and deep learning was studied. As a result, the problem that a single detection method cannot achieve all-round spontaneous combustion and fire detection of coal gangue in large open-pit mines was solved. First, it was proposed to realize spontaneous combustion and fire detection in different areas through infrared thermal imaging and fire image target recognition, and a spontaneous combustion recognition of coal seam and early warning system architecture of open-pit mines was built. Then, thermal imaging equipment fixed on the ground of the open-pit mine was used to capture infrared images of the coal gangue area where no fire has occurred in real time and monitor the temperature changes of the coal gangue. Finally, the drone with an airborne camera was used to take photos of coal seams, waste piles, and surrounding environments, and then a fire detection model was built through the YOLOv8 target detection algorithm based on deep learning, so as to realize the detection of image targets of flames and smoke, thereby completing fire detection and early warning. The results show that the joint detection technology based on thermal infrared images and flame and smoke image recognition has an average detection accuracy of 70.5% for flames and an average recognition accuracy of 74% for smoke, which can meet the detection needs of spontaneous combustion and fire in open-pit mines.

Research on stability of a new carbon brush device considering unit current safety

LIU Peng, WEI Dezhi, XIN Haotian

2024, 34(S1):  219-225.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0038

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To ensure the effective contact area between the carbon brush and the rotor and reduce the occurrence of electric sparks, a new type of carbon brush grinding and polishing device was proposed. Based on the dynamic modeling principle of the clearance mechanism, a method for characterizing the internal clearance between the rotating pairs by using the massless virtual rod method was adopted to establish the continuous contact dynamic equation of the connecting rod with clearance. MATLAB was used to solve the equation, and the influence of the clearance between the rotating pairs and the speed of the crankshaft on the dynamic stability of the connecting rod mechanism with clearance was studied. In order to reduce the influence of fitting clearance and speed on its dynamic performance, a low speed of 10 r/min was used for attitude adjustment, and the fitting clearance between the rotating pairs should be controlled within ± 0.2 mm. By adjusting the posture of the carbon brush, the dynamic stability of the carbon brush mechanism was improved. The results show that under the same speed of the crankshaft and structural parameter conditions, smaller clearance between the rotating pairs indicates better dynamic stability of the attitude adjustment mechanism. Under the condition of constant clearance, a slower speed of the crankshaft indicates better dynamic stability of the attitude adjustment mechanism.

Training platform for regulations and standards of coal preparation based on knowledge graph and its application

LIU Jiang, ZHAO Kaigong, ZHANG Xiaolei, YAN Liwei, LI Changming, WANG Ruidi

2024, 34(S1):  226-233.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0034

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To solve the problems of complex production technology knowledge expression, decentralized information storage, and insufficient data sharing faced by coal preparation, a training platform for regulations and standards of coal preparation was constructed by introducing knowledge graph technology. The platform was designed using a service-oriented architecture (SOA). The system was developed by applying Python language and a large language model. The results show that through the standardized data processing process, the platform can build a complete coal preparation knowledge base and realize the functions of knowledge search, intelligent question and answering, and intelligent training. The platform covers regulations and standards of coal preparation and specialized technical documents and can provide convenient training services on regulations and standards of coal beneficiation. It can also be used as a reference for knowledge sharing and training application services in other areas of production technology.

Research on application of information technology in coal mine safety production

LIU Yanming

2024, 34(S1):  234-238.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0016

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In order to prevent the occurrence of coal mine production site accidents, the application of information technology in coal mine mining was discussed through literature data, summary, and induction, and the meaning and main types of coal mine enterprise informatization were clarified in detail against the background of production informatization. The research shows that the key technologies of ″Internet +″ coal mine safety informatization include the Internet of Things, cloud computing, and big data, which provide efficient and scientific decision-making basis and technical means for coal mine safety. In order to support big data generated by the Internet of Things for coal mines, the ″Internet +″ coal mine safety information application framework composed of an information perception layer, data transmission layer, cloud computing resource layer, application service layer, and user interface layer is proposed. In addition, a construction model based on a proprietary cloud was proposed to make the system elastic and scalable.

Multi-model application practice of reservoir and dam safety monitoring in Dadu River Basin

LI Longfei, GAO Zhiliang, LU Chenyang

2024, 34(S1):  239-245.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0004

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In order to improve the level of reservoir and dam safety monitoring and build an intelligent monitoring system for reservoirs and dams in Dadu River Basin, the problems and difficulties of traditional reservoir and dam monitoring operations were analyzed, and the innovative monitoring mode of reservoir and dam management center in Dadu River Basin was discussed. The results show that the reservoir and dam management center in Dadu River Basin has introduced intelligent three-dimensional (3D) deformation monitoring, Beidou satellite high-precision deformation monitoring, unmanned aerial vehicle (UAV) monitoring, underwater unmanned vehicle monitoring, intelligent patrol, intelligent deep inclination measurement monitoring, and other technologies and has built an intelligent safety management and control system for the reservoir and dam through technology innovation. The system integrates a number of monitoring technologies, integrates and analyzes multi-source data, and can realize intelligent management and control of operational safety risks and rapid emergency response.

Remaining life prediction of roller bearings based on N-BEATS

TENG Chunyang, LI Qingjian, CHEN Jingang, ZHANG Jianfei, XUE Guoqing

2024, 34(S1):  246-252.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0030

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In order to reduce safety accidents and economic losses caused by roller failures of underground belt conveyors in coal mines and improve the safety and transportation efficiency of workers and unit equipment, the N-BEATS prediction model with deep structure and residual network was applied to predict the life of rolling bearings for abnormal vibration of roller bearings at different positions under different working conditions. Firstly, the principle and structure of the N-BEATS prediction model were analyzed, and a life prediction model suitable for roller bearings was established based on the N-BEATS principle. Then, a vibration signal monitoring platform for roller bearings based on DVS technology was built against the actual roller operating conditions of a conveyor belt. The vibration signals of roller bearings under different working conditions were collected. Finally, the collected vibration data of roller bearings were input into the N-BEATS model, convolutional neural network (RCNN), and similarity prediction model, and they were compared with the actual values. The remaining life prediction quality of the three types of roller bearings was evaluated. The results show that the N-BEATS prediction model has an average absolute error increase of 5.3% and 4.1%, respectively, compared to RCNN and similarity prediction models. The relative root mean square error of the N-BEATS prediction model is increased by 6.3% and 5.2%.

Public safety

Research on risks of contactless delivery of food cold chain from perspective of new quality productive forces

MA Ying, WANG Shiying, JUN Wenlu, LIANG Benbu

2024, 34(S1):  253-259.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0026

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In order to promote the improvement of the new mode of contactless delivery, improve the quality of cold chain food, and develop new quality productive forces, it is necessary to study the internal influence mechanism of risk factors of contactless delivery of food cold chain. Firstly, the characteristics of the contactless delivery mode were systematically analyzed based on the national standard documents and related literature, and the risk index system of the contactless delivery of food cold chain was constructed, including six first-level indicators and 17 second-level indicators. Then, the FDANP was used to evaluate the risks at all levels, determine the causal relationship between the factors, and quantify the weight of the risk factors. The results show that information risk, personnel risk, cold chain technology, and equipment risk can affect other risk factors in the first-level indicators. Among the second-level indicators, factors such as natural disasters, delivery timeliness, and optimal transportation planning are the key risk factors. In the future, the new mode of contactless delivery of food cold chain can be improved from three aspects: improving the level of informatization, attaching importance to emergency response capabilities, and enhancing supervision.

Technology and engineering of disaster prevention and mitigation

Impact of marine environmental corrosion on seismic performance of wind power tower

SUN Kui, GUO Changfeng

2024, 34(S1):  260-266.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0048

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To study the impact of marine environmental corrosion on the seismic performance of wind power towers, a 3 MW offshore wind power tower was used as an example. Based on a universal finite element analysis platform, wind power tower analysis models before and after corrosion were established, and time history analysis was used to study the collapse mechanism of the wind power tower during earthquakes. Through modal analysis, the impact of marine corrosion on the frequency and mode of vibration of structures was studied. Three natural ground motions (two far-field motions and one near-field motion) were selected, and time history analysis was used to study the deformation and damage evolution of the wind power tower. The collapse mechanism of the wind power tower was revealed based on the calculation results. The research results show that marine corrosion has a relatively small impact on the frequency and mode of vibration of the wind power tower. Under the action of near-field or short-term earthquakes, marine corrosion will not significantly change the collapse mechanism of the wind power tower. Under the action of long-term earthquakes, the corroded parts of the wind power tower will be damaged first, which will trigger higher-order modes of vibration and cause significant changes in the seismic damage and collapse mechanism of the wind power tower.

Emergency technology and management

Research on safety emergency management evaluation method of coal-fired power generation

HAN Tao, FENG Baiyang, QIAO Kaiwen, YU Xuehai, XU Dong

2024, 34(S1):  267-273.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0122

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To improve the emergency management level of coal-fired power generation and ensure the safety and stability of the coal-fired power industry, an index system for the evaluation of the emergency management ability of coal-fired power plants was established in this paper from the aspects of emergency preparedness ability, emergency prevention and early warning ability, emergency response ability, emergency support ability, and emergency recovery ability. An improved fuzzy comprehensive evaluation method based on entropy weight was constructed, and the safety emergency management ability of a typical coal-fired power plant was evaluated systematically. Finally, measurements and suggestions for optimizing safety emergency management were proposed. The results show that the weight of the evaluation indexes for the emergency management ability of coal-fired power plants taper off as emergency recovery ability (0.269), emergency support ability (0.227), emergency preparedness ability (0.197), emergency prevention and early warning ability (0.172), and emergency response ability (0.135). The fuzzy comprehensive evaluation model can effectively solve the difficulty of evaluating complex problems with multiple factors and levels and improve the objectivity and scientificity of emergency management evaluation in coal-fired power plants.

Research on prevention and emergency response technologies for external factors causing fire in coal mines

SHANG Guoyin

2024, 34(S1):  274-279.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0015

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In order to prevent the occurrence of fire accidents caused by external factors in coal mines, achieve efficient and rapid response after the risk is out of control, and minimize casualties and property losses, the Daliuta coal mine of Shendong Coal Group was used as an example. The key external factors causing fire accidents in large and super-large coal mines were analyzed, and pre-disaster prevention and control measures were summarized. In addition, emergency response technologies were explored. The results show that long-distance tape machine friction ignition, overheating of high-voltage cables and equipment, and spontaneous combustion of auxiliary transportation vehicles are key external factors causing fires in large coal enterprises. Emergency response technologies such as airflow short circuits, local backflow, new air door control, fire zone closure, and compressed air self-rescue can be adopted to deal with fire accidents caused by external factors in coal mines. Fire accidents caused by external factors in coal mines feature common occurrences, serious losses, and difficult responses. Therefore, a comprehensive management technology combining pre-disaster prevention and emergency response is needed to ensure the safety of mine production.

Research on emergency command system of hydropower stations based on information fusion technology

LI Guanghua, LIU Ming

2024, 34(S1):  280-284.  doi:10.16265/j.cnki.issn1003-3033.2024.S1.0018

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In order to ensure the safe and efficient operation of the emergency command system of hydropower stations and improve the level of digitalization and intelligentization of emergency responses, the difficulties of traditional emergency responses of hydropower stations were analyzed. The knowledge graph technology was used to standardize the massive heterogeneous information of hydropower stations, and a standardized information base was formed. The research and application of multi-source heterogeneous information fusion technology in the process of accident responses were carried out to realize the real-time acquisition, processing, and analysis of multi-source heterogeneous information. By means of data mining, analysis and processing, fusion and application, the fault early warning model was built to accurately study the nature of the accident and fault location and automatically generate the optimal response guidance scheme, so as to guide emergency response personnel to carry out fault control, equipment isolation, and risk identification safely and efficiently. In addition, it helped deduce the effect of emergency response measures and fault development situations intelligently in the response process and dynamically optimize response measures. At the same time, by building a visual information sharing platform, the key points of accident responses and the progress of measures were displayed dynamically, and the key guidance information was pushed intelligently according to the division of duties of the personnel in the emergency command system, so as to realize the complementary interaction and cooperative command of each level of emergency response and establish an efficient, intelligent, and visual emergency command system.