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Coal Industry of Eastern Russia: Current Situation and Development Trends 俄罗斯东部的煤炭工业：现状与发展趋势
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-03-12 DOI: 10.1134/s1062739123060194
V. L. Gavrilov, S. M. Tkach
{"title":"Coal Industry of Eastern Russia: Current Situation and Development Trends","authors":"V. L. Gavrilov, S. M. Tkach","doi":"10.1134/s1062739123060194","DOIUrl":"https://doi.org/10.1134/s1062739123060194","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The features and trends of coal mining in the east of Russia are examined. The current and planned managerial decisions connected with coal production and supplies to competitive markets are analyzed. The coal products are ROM fuel, concentrate and middlings. The authors discuss approaches to effective mining and processing management within the chains of supplies, and to provision of the required quality of solid fuel produced and delivered to customers.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"166 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140114986","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Process Flow Charts and Recommendations for Processing of Bauxite with Increased Contents of Iron and Fine Particles of Valuable Components 加工铁含量和有价成分细颗粒增加的铝土矿的工艺流程图和建议
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-03-12 DOI: 10.1134/s1062739123060133
V. I. Rostovtsev
{"title":"Process Flow Charts and Recommendations for Processing of Bauxite with Increased Contents of Iron and Fine Particles of Valuable Components","authors":"V. I. Rostovtsev","doi":"10.1134/s1062739123060133","DOIUrl":"https://doi.org/10.1134/s1062739123060133","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The author investigated the modes of thermal and heat-and-radiation treatment of ferruginous bauxite from Vezhayu–Vorykva deposit and revealed different mechanisms of mineral transformations. Under thermal treatment, oxo-hydroxides transform into anhydrous iron and aluminum oxides, while under heat-and-radiation treatment, scattered microelements form metal alloys and new minerals. It is recommended to ground ferruginous bauxite processing on basic science, first of all, nanomineralogy, and on phenomenon of phase heterogenization. This approach can promote an increase in recovery of fine particles of aluminum and other valuable components from low-grade bauxite and red mud by eco-friendly techniques.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"5 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140116880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Permeability of Coal Cores with a Drainage Fracture with a Monolayer of Proppant 带有单层支撑剂排水裂缝的煤岩芯的渗透性
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-03-12 DOI: 10.1134/s106273912306008x
T. V. Shilova, S. V. Serdyukov, L. A. Rybalkin
{"title":"Permeability of Coal Cores with a Drainage Fracture with a Monolayer of Proppant","authors":"T. V. Shilova, S. V. Serdyukov, L. A. Rybalkin","doi":"10.1134/s106273912306008x","DOIUrl":"https://doi.org/10.1134/s106273912306008x","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The article describes the studies on permeability of coal cores with a through drainage fracture with and without a monolayer of a proppant. The experimental procedure is descried. The parameters of the jointed structure of test long-flame coal are given. The efficiency of wedging drainage fractures by a sparse proppant monolayer in building up permeability of deep-seated coal is demonstrated.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"109 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140116381","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Preparability of Iron Ore from Yakovlevo Deposit, Kursk Magnetic Anomaly, Using Coarse Particle Separation Methods 利用粗颗粒分离方法制备库尔斯克磁异常区雅科夫列沃矿藏的铁矿石
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-03-12 DOI: 10.1134/s1062739123060121
D. N. Shibaeva, A. A. Kompanchenko
{"title":"Preparability of Iron Ore from Yakovlevo Deposit, Kursk Magnetic Anomaly, Using Coarse Particle Separation Methods","authors":"D. N. Shibaeva, A. A. Kompanchenko","doi":"10.1134/s1062739123060121","DOIUrl":"https://doi.org/10.1134/s1062739123060121","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The article presents evaluation of preparability of iron ore from Yakovlevo deposit, Kursk Magnetic Anomaly, using magnetic, gravity and X-ray radiometric methods of coarse particle separation. The detailed study involved a material with particle size of <span>(-100+25)</span> mm, containing 25–45% Fe<span>(_mathrm{total})</span> and 3–35% of Fe<span>(_mathrm{magn})</span> and requiring dressing. It is found that effective separation of the initial feedstock into ore and dirt is ensured by the X-ray radiometric method of separation of coarse particles <span>(-50+25)</span> mm in size. At the analytical parameter equal to 2, the increase in the content of Fe<span>(_mathrm{total})</span> in the ore product reaches 1.18 times at the loss of 5.52%.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"30 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140116727","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reconstruction of Paleostresses in the West of Sakhalin from Tectonophysical Research Findings 根据构造物理研究结果重建萨哈林岛西部的古地应力
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-03-12 DOI: 10.1134/s1062739123060054
P. A. Kamenev, A. V. Marinin
{"title":"Reconstruction of Paleostresses in the West of Sakhalin from Tectonophysical Research Findings","authors":"P. A. Kamenev, A. V. Marinin","doi":"10.1134/s1062739123060054","DOIUrl":"https://doi.org/10.1134/s1062739123060054","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The article discusses tectonic stresses determined in the West Sakhalin terrain using different tectonophysical methods. The reconstruction of the stress field in coal fields in Sakhalin is implemented using the graphical method of orientation finding of stress axes in fractures and faults (at 16 observation points). The supplementary on-site tectonophysical studies made it possible to estimate the preferred orientation of the main slickensides of different kinematics and to reconstruct on this basis the local stress tensors at 53 observation points. The typical stress state of the West Sakhalin terrain is horizontal tension.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"11 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140116725","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A Preliminary Investigation of the Operating Variables in a Laboratory Knelson Concentrator for Enrichment of Chromite Ore 对用于富集铬铁矿石的实验室纳尔逊选矿机的运行变量的初步研究
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-03-12 DOI: 10.1134/s1062739123060145
Selcuk Samanli, Ozan Osmanli
{"title":"A Preliminary Investigation of the Operating Variables in a Laboratory Knelson Concentrator for Enrichment of Chromite Ore","authors":"Selcuk Samanli, Ozan Osmanli","doi":"10.1134/s1062739123060145","DOIUrl":"https://doi.org/10.1134/s1062739123060145","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The article describes the experimental studies on the recovery of chromite ore obtained from the Askale-Kop deposit (Erzurum/Turkey) using a laboratory-type KC-MD3 Knelson concentrator. For this purpose, the parameters of pulp feed rate, fluidization water flow rate, pulp solids ratio bowl speed and particle size were examined as variables in the experimental studies. As a result of the experiments, the maximum Cr<sub>2</sub>O<sub>3</sub> grade was obtained at 54.68% in chromite concentrate at fluidization water flow rate of 12 l/min, pulp feed rate of 1.5 l/min, pulp solids ratio of 20% and bowl speed of 800 rpm. The highest concentrate recovery value (76.85%) was obtained at fluidization water flow rate of 6 l/min, pulp feed rate of 1.5 l/min, pulp solids ratio of 20% and bowl speed of 1080 rpm.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"65 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140115018","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Secondary Products Obtained from Saponite-Bearing Process Water: Theoretical and Experimental Justification 从含皂石工艺水中获得的二次产品：理论和实验证明
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-03-12 DOI: 10.1134/s1062739123060108
V. A. Chanturia, V. G. Minenko
{"title":"Secondary Products Obtained from Saponite-Bearing Process Water: Theoretical and Experimental Justification","authors":"V. A. Chanturia, V. G. Minenko","doi":"10.1134/s1062739123060108","DOIUrl":"https://doi.org/10.1134/s1062739123060108","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The authors provide the theoretical and experimental justification for the effective methods of modification of saponite—pillaring and thermal treatment—which ensure production of sorbents possessing high cation exchange capacity relative to cations of heavy metals. The mechanism of pillaring and thermal modification of a saponite-containing product at the temperature of 625 °C involves expansion of layers of the mineral, formation of additional acid or redox sites (pillaring) and restructuring with generation of metastable phases (thermal treatment). Modification of saponite increases static exchange capacity relative to copper cations by 2 times after pillaring and by 2.6 times after thermal treatment.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"93 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-03-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140117559","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Temporary Structure Formation in Granular Media under Periodic Shear: Numerical Modeling and Experiment 周期性剪切作用下颗粒介质中的临时结构形成：数值建模与实验
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-02-26 DOI: 10.1134/s1062739123050046
V. P. Kosykh, O. A. Mikenina
{"title":"Temporary Structure Formation in Granular Media under Periodic Shear: Numerical Modeling and Experiment","authors":"V. P. Kosykh, O. A. Mikenina","doi":"10.1134/s1062739123050046","DOIUrl":"https://doi.org/10.1134/s1062739123050046","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The authors implemented a series of lab-scale cyclic shear deformation tests of granular medium. The steady-state boundary conditions kept for the hundreds of thousands shear cycles result in the time-varying response of the test medium. The periods of stress fluctuations of the order of tens, hundreds and thousands cycles are observed in the medium. The time-varying response of the medium is connected with periodic formation and deformation of clusters and force chains in the medium. The DEM-based numerical modeling of cyclic shear of a granular medium with the same loading program as in the tests shows the adequacy of the discrete element method and the agreement of the numerical and experimental data.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"15 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Physical and Mechanical Properties of Ore and Rocks after Flooding 洪水过后矿石和岩石的物理和机械特性
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-02-26 DOI: 10.1134/s1062739123050034
A. A. Eremenko, T. P. Darbinyan, Yu. N. Shaposhnik, O. M. Usol’tseva, P. A. Tsoi
{"title":"Physical and Mechanical Properties of Ore and Rocks after Flooding","authors":"A. A. Eremenko, T. P. Darbinyan, Yu. N. Shaposhnik, O. M. Usol’tseva, P. A. Tsoi","doi":"10.1134/s1062739123050034","DOIUrl":"https://doi.org/10.1134/s1062739123050034","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The authors investigate the physical and mechanical properties of hornstone, gabbro-dolerite and rich chalcopyrite–pyrrhotine ore subjected to flooding at the Oktyabrsky deposit in the Talnakh ore province. The analysis of the petrography, chemistry and mineralogy of the test samples showed no substantial differences in their properties after flooding. The comparison of the strength and deformation characteristics of rocks from the uniaxial compression and tension testing results demonstrate the decrease of both in water-saturated rocks and the increase in the room-temperature dried samples. The limit strength, elasticity modulus and internal friction angles have smaller values in rocks after drying than in the initial samples.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"46 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968388","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Single-Criterion Optimization of Limestone Supply under the Conditions of Variable Thermal Power Complex Structure and the Differences between Solutions 可变火力发电复杂结构条件下石灰石供应的单一标准优化及解决方案之间的差异
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-02-26 DOI: 10.1134/s1062739123050186
Ž. Praštalo, S. Vujić, M. Kuzmanović, P. Stjepanović, R. Šarac
{"title":"Single-Criterion Optimization of Limestone Supply under the Conditions of Variable Thermal Power Complex Structure and the Differences between Solutions","authors":"Ž. Praštalo, S. Vujić, M. Kuzmanović, P. Stjepanović, R. Šarac","doi":"10.1134/s1062739123050186","DOIUrl":"https://doi.org/10.1134/s1062739123050186","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The paper presents the single-criterion modeling of limestone supply under the conditions of the variable structure of the thermal power complex of Serbia. In the end, the paper provides an analysis of the differences between multi-attribute and single-criterion solutions.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":"4 1","pages":""},"PeriodicalIF":0.8,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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