Перегляд Mining of Mineral Deposits по назві
Зараз показуються 237-256 з 354
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Recommended practice for using resource-saving technologies and tools for fine classification of uranium ores by size and refuse dehydration
(National Mining University, 2016-03-30)Purpose. Developing recommendations for the creation and application of resource-saving technologies and tools for fine classification and dehydration of uranium ore refuse for the purpose of its recycling, which is important ... -
Reconstruction of the primary organic productivity of Campano-Maastrichtian shales of Nkporo and Aptian-Albian Awi Formations, Calabar Flank using pigment yield index
(National Mining University, 2018-09-30)Purpose. To derive the paleo organic productivity exemplified by the pigment yield index in order to resolve the controversy on the petroleum potentials of Nkporo and Awi Formations in Calabar Flank, Southeastern ... -
Recycling of Prydniprovska thermal power plant fly ash
(National Mining University, 2017-03-30)Purpose. To confirm experimentally the feasibility of complete fly ash recycling at Prydniprovska Thermal Power Plant (TPP) by its refining into industrially valuable products using gravity classification of dry ash from ... -
Regularities in the distribution of granulometric composition of tuff while crushing
(Dnipro University of Technology, 2021-03-31)Purpose is to analyze distribution of granulometric composition of tuff as well as ultimate composition and identify dependence of its softening in the process of water saturation based upon a set of experiments to assess ... -
Regularities of hydromechanical amber extraction from sandy deposits
(National Mining University, 2019-03-30)Purpose is to analyze the efficiency of hydromechanical amber extraction from sandy deposits relying upon the determined regularities concerning the effect of parameters while carrying out a series of laboratory tests and ... -
Regularities of surface subsidence and rocks displacement within the boundaries of local workings
(National Mining University, 2016-09-30)Purpose. To establish typical phases of the earth surface subsidence and rocks displacement on the local workings’ boundary under the influence of the working face movement. Methods. Development of the general picture of ... -
Reliability and maintainability of scraper conveyor used in coal mining in the Jiu Valley
(Dnipro University of Technology, 2021-09-30)Purpose. The aim of the study is to determine and analyse causes of faults in the operation of TR-7A scraper conveyor and to estimate the required time for their remediation and select the methods of their prevention and ... -
Research into adhesive ore-dressing technologies of fine- and nano gold
(National Mining University, 2016-12-30)Purpose. To summarize domestic experience in creating technology for adhesive gold dressing and to describe key research results. Methods. Laboratory experimental and pilot research into the process of obtaining adhesively ... -
Research into balance of rocks and underground cavities formation in the coal mine flowsheet when mining thin seams
(National Mining University, 2020-12-30)Purpose. Study the movement of waste rock flows in the coal mine technological system and determine the balance of rocks and underground cavities formation from the perspective of the current mining operations development ... -
Research into influence of drilling-and-blasting operations on the stability of the Kusmuryn open-pit sides in the Republic of Kazakhstan
(Dnipro University of Technology, 2021-09-30)Purpose. Research into influence of drilling-and-blasting operations on the nature of deformation in near-side masses of the design open-pit contours and assessing the seismic impact of blasting operations, which are the ... -
Research into leaching of uranium from core samples in tubes using surfactants
(National Mining University, 2020-12-30)Purpose. Improving the efficiency of borehole uranium recovery in difficult mining-and-geological conditions through the development of a new technology based on the intensification of geotechnological processes of in-situ ... -
Research into limits of gas-fired burners flame stabilization in the flue gas recirculation
(National Mining University, 2020-03-30)Purpose. Determining the flue gas recirculation effect on the verge of the gas-fired burners flame stabilization based on experimental industrial research. Methods. The studies were conducted on a circular heating furnace ... -
Research into parameters characterizing the process of withdrawing clay-mud formations from bore hole vuggy zones
(National Mining University, 2016-03-30)Purpose. Substantiating technological parameters of the device for processing vuggy zone in the bore hole, based on the obtained dependences describing formation and withdrawal of clay-mud agglomerates and their influence ... -
Research into phosphate mineral composition and waste phosphorite ore
(Dnipro University of Technology, 2021-03-31)Purpose. Theoretical and experimental studies of chemical and mineral composition and the structure peculiarities of phosphorites from Ukrainian deposits to define the degree of their suitability for other industries. Methods. ... -
Research into rock mass geomechanical situation in the zone of stope operations influence at the 10th Anniversary of Kazakhstan’s Independence mine
(Dnipro University of Technology, 2021-03-31)Purpose. Predicting the stress-strain state (SSS) of the rock mass in the zone of stope operations influence using the selfcaving mining system and the calculation of the load-bearing capacity of mine workings support at ... -
Research into stress-strain state of reinforced marginal massif of extraction mine working by combined anchoring system
(National Mining University, 2016-03-30)Purpose. Justification of conditions for reusal of extraction mine working by maintaining system parameters of resin-grouted and rope roof bolts. Methods. Wide range of investigation of stress-strain state of coal-bearing ... -
Research into stress-strain state of the rock mass condition in the process of the operation of double-unit longwalls
(National Mining University, 2020-06-30)Purpose. To substantiate changes in stress-strain state of rock mass in the process of long-pillar mining with the help of double-unit longwalls while evaluating stress of a mine field in terms of Lvivvuhillia SE mine. Methods. ... -
Research into technology of fastening the mine workings in the conditions of unstable masses
(Dnipro University of Technology, 2021-09-30)Purpose. Determination of the rock stability along the strike of the mass, where the drift mining of the horizon -480 m is conducted, considering the possibility of using the improved types of supports in the conditions ... -
Research into the effect of gallery size on blast pull in underground coal mines
(National Mining University, 2018-06-30)Purpose. To investigate the effect of gallery size on blast pull in underground colliery by drilling and blasting techniques. Methods. The study conducted in three different underground collieries namely A, B and C located ... -
Research into the influence of technical factors on rocks deformation during reworking of ore deposits
(National Mining University, 2017-09-30)Purpose. The aim of this work is to establish the relation of rocks deformation during reworking of ore deposits to mining and technical conditions and factors of mineral production based on the processing of surveying ...