Mining Revue最新文献

A Cleaning of Internal Surfaces of Bunkers Without the Presence of Operating Personnel Inside the Bunker 在没有作业人员进入地堡的情况下清洗地堡内表面

Mining Revue Pub Date : 2024-03-01 DOI: 10.2478/minrv-2024-0009

V.A. Shapovalov, V.I. Lyashenko, A. Gurin

{"title":"A Cleaning of Internal Surfaces of Bunkers Without the Presence of Operating Personnel Inside the Bunker","authors":"V.A. Shapovalov, V.I. Lyashenko, A. Gurin","doi":"10.2478/minrv-2024-0009","DOIUrl":"https://doi.org/10.2478/minrv-2024-0009","url":null,"abstract":"\u0000 Bunkers are an integral part of the infrastructure of enterprises in various industries processing bulk materials. Corrosion processes and the formation of dust deposits on the internal surfaces of bunkers are irreversible and often lead to disruptions in the technological process and equipment performance parameters, and in some cases, to accidents. The stability and continuity of technological processes for processing bulk materials largely depend on the cleanliness of the internal surfaces of bunkers. Even the best technical characteristics of technological equipment only indicate the technical capabili-ties of the operation of technological lines. Their reliable and effective operation can be ensured by proper maintenance of the condition of internal surfaces and cleaning from corrosion and deposits. Increased dustiness, poor visibility, and confined spaces significantly complicate the conditions for performing work by service personnel inside bunkers. The enclosed space inside bunkers is a very dangerous place not intended for the work of service personnel. In order to avoid endangering ser-vice personnel and prevent people from entering the bunker, methods are proposed to easily, quickly, and, most importantly, safely clean the surfaces inside the bunkers.","PeriodicalId":18788,"journal":{"name":"Mining Revue","volume":"121 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140404964","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Computational Simulation of Methane Ignition in Enclosed Spaces 封闭空间中甲烷点火的计算模拟

Mining Revue Pub Date : 2024-03-01 DOI: 10.2478/minrv-2024-0006

G. Florea, D. Petrilean

{"title":"Computational Simulation of Methane Ignition in Enclosed Spaces","authors":"G. Florea, D. Petrilean","doi":"10.2478/minrv-2024-0006","DOIUrl":"https://doi.org/10.2478/minrv-2024-0006","url":null,"abstract":"\u0000 In the research on gas explosions, the emphasis has been and continues to be primarily on physical experiments conducted on various scaled-down models. Building models at actual size is often a resource-intensive task in terms of materials, time, and human resources. The rapid advancement of computational techniques has allowed, among other things, the transfer of gas explosion research into the virtual environment. For validating computerized simulations of this kind, physical experiments and specialized literature are still considered fundamental. However, one of the challenges posed by the virtualization process is the limitation of conducting simulations in fully or partially enclosed spaces, under initially imposed conditions, without the possibility of dynamically modifying these conditions based on the development of overpressures generated by the virtual explosion. This paper details a computerized experiment where the boundary conditions were successfully transformed into predefined pressure threshold surfaces, transitioning from rigid surfaces to surfaces capable of releasing the overpressures developed in fully or partially enclosed spaces. This approach aligns the results of these simulations with the real dynamic effects of gas explosion events.","PeriodicalId":18788,"journal":{"name":"Mining Revue","volume":"341 3","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140401897","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Assessing the Risk of Terrorist Attacks Against Technical Infrastructures Intended for the Storage of Explosives For Civil Uses 评估针对民用爆炸物储存技术基础设施的恐怖袭击风险

Mining Revue Pub Date : 2024-03-01 DOI: 10.2478/minrv-2024-0010

Cristian Rădeanu, Ladislau Radermacher, G. Vasilescu, Claudius Popescu

引用次数: 0

Occupational Safety Risk Assessment for Wola Heavy-Duty Machinery Operator in a Romanian Diabase Open –Pit Mine 罗马尼亚辉绿岩露天矿沃拉重型机械操作员的职业安全风险评估

Mining Revue Pub Date : 2024-03-01 DOI: 10.2478/minrv-2024-0001

Raluca Cepreaga Moldoveanu, R. Moraru

{"title":"Occupational Safety Risk Assessment for Wola Heavy-Duty Machinery Operator in a Romanian Diabase Open –Pit Mine","authors":"Raluca Cepreaga Moldoveanu, R. Moraru","doi":"10.2478/minrv-2024-0001","DOIUrl":"https://doi.org/10.2478/minrv-2024-0001","url":null,"abstract":"\u0000 Occupational safety risk assessment is always the basic stage of the systematic approach of reducing the impact of undesired events (work injuries and occupational illnesses), by decreasing both their likelihood of occurrence and the gravity/severity of the generated impact. Eighteen years ago, when, as a consequence of the regulatory changes induced by our country’s accession into the European Union, the risk assessment became mandatory/compulsory. Since then some progress was factually realized in the spirit of applying different risk analysis techniques in all Romanian organizations. Even if there are many aspects that are requiring further improvement, an effectively validated and nationally accepted indigenous tool is nowadays available. This method was put in practice in this research paper, in order to analyse, evaluate and assess the safety risks related to several of the main activities/jobs in a diabase open pit mine exploiting construction stone in a certain province of the country. Based on the results obtained, it has become feasible to propose realistic measures aimed at preventing the identified and quantified risks located in the field of unacceptable risks and protecting exposed workers to their effects. The case study developed and synthesized in this article confirms the capability of the risk assessment process to facilitate the substantiation of the decisions regarding the allocation of resources towards the minimization of the risks encountered in the work processes by different categories of workers in the mining companies.","PeriodicalId":18788,"journal":{"name":"Mining Revue","volume":"11 5","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140405469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Experimental Verification of Calculation Formulas for Hydraulic Characteristics of Ash Suspension Removal 灰渣悬浮物去除水力特性计算公式的实验验证

Mining Revue Pub Date : 2024-03-01 DOI: 10.2478/minrv-2024-0004

Vladyslav Kurilov

{"title":"Experimental Verification of Calculation Formulas for Hydraulic Characteristics of Ash Suspension Removal","authors":"Vladyslav Kurilov","doi":"10.2478/minrv-2024-0004","DOIUrl":"https://doi.org/10.2478/minrv-2024-0004","url":null,"abstract":"\u0000 The article presents a comprehensive analysis of the hydraulic characteristics of ash suspensions, in particular the removal of ash from the Dnieper Hydroelectric Station. The importance of this research is justified by the relevance of understanding hydrodynamic processes in suspensions, which is crucial for the efficiency of mineral resource processing. The study focuses on the investigation of the physico-chemical properties of suspensions, which is fundamental for the development and optimization of technological processes. The main goal of the article is to determine the discrepancies between theoretical calculations and experimental data in the context of the hydraulic characteristics of ash suspensions. Focusing on this issue, the research aims to make an important contribution to the accuracy of prediction and calculation of the behavior of suspensions, which has important practical applications. The research methodology includes a series of experiments to measure various hydraulic parameters of the suspension, including suspension density, solid phase weight content, and porosity. The experiments are based on a detailed analysis of ash samples collected from the Dnieper Hydroelectric Station. It is established that theoretical formulas for determining hydraulic characteristics are well confirmed experimentally. The difference is due to the accuracy of measuring the density of the solid phase and errors in measuring weight and volume; it is sufficiently small and does not have a fundamental character.","PeriodicalId":18788,"journal":{"name":"Mining Revue","volume":"71 2","pages":""},"PeriodicalIF":0.0,"publicationDate":"2024-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140406425","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Determining the Dynamics of Carbon Dioxide Dispersion in Closed Spaces 确定二氧化碳在封闭空间中的扩散动态

Mining Revue Pub Date : 2024-03-01 DOI: 10.2478/minrv-2024-0007

Doru Cioclea, S. Radu, Alexandru Cămărășescu, Adrian Matei, Răzvan Drăgoescu

引用次数: 0

CFD Simulation of Carbon Dioxide Dispersion Dynamics in Closed Spaces 封闭空间中二氧化碳扩散动力学的 CFD 模拟

Mining Revue Pub Date : 2024-03-01 DOI: 10.2478/minrv-2024-0008

Doru Cioclea, S. Radu, Alexandru Cămărășescu, Adrian Matei, Răzvan Drăgoescu

引用次数: 0

Damping of Suddenly Changing Loads by Drive Means of the Driving Mechanism of the Scraper Conveyor 通过刮板输送机驱动机构的驱动装置抑制突然变化的载荷

Mining Revue Pub Date : 2024-03-01 DOI: 10.2478/minrv-2024-0003

Stanislav Iev. Bartashevskyi, Valery А. Borodai, Olha Yu. Nesterova