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Contribution of Mineral Impurities to Coalbed Methane Accumulation and Retention 矿物杂质对煤层气积聚和滞留的影响
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-02-26 DOI: 10.1134/s1062739123050010
V. N. Zakharov, E. V. Ul’yanova, O. N. Malinnikova
{"title":"Contribution of Mineral Impurities to Coalbed Methane Accumulation and Retention","authors":"V. N. Zakharov, E. V. Ul’yanova, O. N. Malinnikova","doi":"10.1134/s1062739123050010","DOIUrl":"https://doi.org/10.1134/s1062739123050010","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The implemented research shows that coalbed gas content in face area is proportional to pyrite content of coal, calculated with respect to iron and sulfur contents determined on X-ray fluorescent spectrometer. These results confirm the hypothesis on methane formation in coal during recovery of carbon oxides in the presence of iron-bearing minerals, in particular, pyrite, and water, and explain different contents of methane in the same rank coals. The obtained inverse proportion between the coalbed gas content in the face area and the sorption surface of coal allows supposing that methane accumulations concentrate mainly in the \"solid solution\" and in the closed porosity, i.e. in the coal structure. For this reason, it is more difficult and longer to recover such methane from coal than methane accumulated in open pores and fractures, which quickly leaves coal in face area.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968395","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
Improvement of Local Rockburst Control Equipment in Mineral Mining 矿产开采中局部岩爆控制设备的改进
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-02-26 DOI: 10.1134/s1062739123050198
I. Yu. Rasskazov, P. A. Anikin, A. P. Grunin, D. S. Migunov, A. A. Tereshkin
{"title":"Improvement of Local Rockburst Control Equipment in Mineral Mining","authors":"I. Yu. Rasskazov, P. A. Anikin, A. P. Grunin, D. S. Migunov, A. A. Tereshkin","doi":"10.1134/s1062739123050198","DOIUrl":"https://doi.org/10.1134/s1062739123050198","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>As a result of hardware updating of Prognoz-L based on the modern electronic engineering and the accumulated experience, rock mass express-evaluator Prognoz-L.2 has been designed. The test data of the evaluator are presented as a case-study of a rockburst-hazardous mineral deposit.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968630","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
Modeling Rock Fracture in Closely Spaced Perimeter Blasting 近距离周边爆破中的岩石断裂建模
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-02-26 DOI: 10.1134/s1062739123050083
E. N. Sher
{"title":"Modeling Rock Fracture in Closely Spaced Perimeter Blasting","authors":"E. N. Sher","doi":"10.1134/s1062739123050083","DOIUrl":"https://doi.org/10.1134/s1062739123050083","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The article presents the design model and results for the main crack development in closely spaced blasting in brittle rocks. The 3D modeling is described as case-study of crack formation in granite in perimeter blasting of ammonite charges at different spacing and filling of blastholes. The shapes and sizes are determined for the main cracks generated by blasting of single charge and three close-spaced charges. From the modeling results obtained for a specific charge, the method is proposed to determine efficient spacing of blastholes in perimeter blasting to ensure the maximal area of the created crack.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968640","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
Electromagnetic Emission Associated with Fracture of Rock Samples 与岩石样本断裂有关的电磁辐射
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-02-26 DOI: 10.1134/s1062739123050204
A. A. Bizyaev, A. G. Vostretsov, I. I. Smirnyagin, M. D. Sharapova
{"title":"Electromagnetic Emission Associated with Fracture of Rock Samples","authors":"A. A. Bizyaev, A. G. Vostretsov, I. I. Smirnyagin, M. D. Sharapova","doi":"10.1134/s1062739123050204","DOIUrl":"https://doi.org/10.1134/s1062739123050204","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The article presents the fracture test data of rock samples with the porphyroblastic, granoblastic lepidoblastic and laminated structure. The tests were carried out on lab-scale tester ASI-2. The test samples were subjected to uniaxial compression until discontinuity with synchronous recording of associated electromagnetic emission, load and displacements along the compression axis. The laminated rock samples in fracture show anisotropy of geophysical parameters and electromagnetic emission.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968641","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
Design of High Speed Rotors for Axial Mine Fans 轴流式矿用通风机高速转子的设计
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-02-26 DOI: 10.1134/s1062739123050113
A. M. Krasyuk, E. Yu. Russky, N. V. Panova, T. I. Irgibaev
{"title":"Design of High Speed Rotors for Axial Mine Fans","authors":"A. M. Krasyuk, E. Yu. Russky, N. V. Panova, T. I. Irgibaev","doi":"10.1134/s1062739123050113","DOIUrl":"https://doi.org/10.1134/s1062739123050113","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The article presents the optimization design results for impellers of axial fans for main ventilation in mines using the criteria of minimum mass and required stress level in fan assemblies. The design of a single disk impeller is justified. For high-duty fans having the blade tip speed of 200–220 m/s, the topology optimization is performed for the single-disk impeller. The dependence between the design parameters of the impeller components and the speed of the fan rotor is determined. The topology optimization is implemented with SIMP in ANSYS.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968731","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
Bio-System Concept of Technological Innovation in Mining with Implementation of Ecological Imperative 采矿技术创新的生物系统概念与生态要求的落实
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-02-26 DOI: 10.1134/s1062739123050162
Yu. P. Galchenko, G. V. Kalabin
{"title":"Bio-System Concept of Technological Innovation in Mining with Implementation of Ecological Imperative","authors":"Yu. P. Galchenko, G. V. Kalabin","doi":"10.1134/s1062739123050162","DOIUrl":"https://doi.org/10.1134/s1062739123050162","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>The prospects for ecologization of technological paradigm of development in the sector of mineral resources are studied and substantiated with regard to the requirements and constraints, and based on the equal possibilities for the biosphere and technosphere. The notion of the nature-like technologies is structured subject to the coincidence of missions of the content-rich components in the natural and geotechnical systems. The methodology of the homeostatic transformation of the biological system functions into the structure of a cluster on the convergent mining technologies is presented.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968800","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":null,"pages":null},"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":null,"pages":null},"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":null,"pages":null},"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
Study on Beneficiation Technology for Rational Utilization of Low-Grade Copper Nickel Symbiotic Ore 合理利用低品位铜镍共生矿的选矿技术研究
IF 0.8 4区 工程技术
Journal of Mining Science Pub Date : 2024-02-26 DOI: 10.1134/s1062739123050150
F. Gan, L. Gao, H. Dai, B. Rao, J. Bai
{"title":"Study on Beneficiation Technology for Rational Utilization of Low-Grade Copper Nickel Symbiotic Ore","authors":"F. Gan, L. Gao, H. Dai, B. Rao, J. Bai","doi":"10.1134/s1062739123050150","DOIUrl":"https://doi.org/10.1134/s1062739123050150","url":null,"abstract":"<h3 data-test=\"abstract-sub-heading\">Abstract</h3><p>In order to realize the rational utilization of low-grade polymetallic symbiotic mineral resources with low input, typical copper–nickel symbiotic low-grade ores were used as the test object. After careful process mineralogy research on the ore, it was learned that the main valuable elements of the ore were Cu and Ni, and the content of these two elements was 0.16 wt.% and 0.39 wt.%, respectively. The main copper-bearing mineral in the ore was chalcopyrite, and the main nickel-bearing mineral was pentlandite Useful minerals were finely distributed in ores. Based on the properties of ore, a beneficiation process of one stage grinding <span>(to)</span> copper/nickel mixed flotation <span>(to)</span> copper/nickel separation was proposed. A copper concentrate with a Cu grade of 17.08 wt.% and a nickel concentrate with a Ni grade of 4.63 wt.% were obtained by separation. This study provides a lowinvestment technical solution for the rational utilization of polymetallic paragenetic mineral resources.</p>","PeriodicalId":16358,"journal":{"name":"Journal of Mining Science","volume":null,"pages":null},"PeriodicalIF":0.8,"publicationDate":"2024-02-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139968634","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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