scholarly journals ANALYSIS OF LOGISTIC RISKS OF RAILWAY TRANSPORT OF THE MINING AND CONCENTRATING PLANT UNDER CONDITIONS OF INCREASING PRODUCTION VOLUMES OF FINISHED PRODUCTS

2021 ◽  
pp. 41
Author(s):  
D. KOZACHENKO ◽  
V. MALASHKIN ◽  
M. BEREZOVYI ◽  
S. BORYCHEVA
Keyword(s):  
Carrying Capacity ◽  
Raw Materials ◽  
Mining Industry ◽  
Practical Significance ◽  
Processing Plant ◽  
Technical Equipment ◽  
Railway Transport ◽  
Industrial Enterprises ◽  
Railway Infrastructure ◽  
Crushing Plant

Purpose. In modern conditions, the problem of increasing the efficiency of the railway transport of industrial enterprises is very urgent, and, first of all, this applies to enterprises of the metallurgical and mining industry, which are the largest recipients and consignors of goods by the railways of Ukraine. In this regard, the purpose of the study is to develop measures to increase the throughput and carrying capacity of the railway infrastructure of a mining enterprise in the context of an increase in the transportation of raw materials. Methods. The analysis of the technical equipment and technology of the railway transport of a large mining and processing plant in Ukraine was carried out using the methods of graphical analytical modeling. Results. The track development of the mining and processing plant ensures the delivery of iron ore from the quarry to the crushing and processing plant. The plant is presented as a system for transporting raw materials from loading points to unloading points, in which the process of its consumption is uniform (unloading ore on the tracks of a crushing plant), and the process of its replenishment is uneven (loading ore at loading points). Smoothing the uneven supply of raw materials between the points of loading and unloading provides the track capacity of the station adjacent to the crushing plant. The carrying capacity of the existing railway infrastructure of the plant does not ensure the mastery of the estimated volumes of transportation of raw materials. Analysis of the results of graphical modeling of the mining and processing plant showed that the limiting elements are the processing capacity of the crushing plant and long distances between the loading points and the abutment station. Organizational and technical solutions are proposed to increase the throughput of the railway infrastructure of the mining and processing plant. Practical significance. The results obtained can be used in the implementation of recommendations aimed at increasing the efficiency of the functioning of the railway transport of the mining and processing plant in conditions of an increase in the volume of transportation of raw materials.

scholarly journals STUDY OF THE PASSAGE AND TRANSPORTATION CAPACITY OF THE RAILWAY INFRASTRUCTURE OF THE MINING AND PROCESSING PLANT UNDER THE CONDITIONS OF INCREASING THE VOLUMES OF TRANSPORTATION OF RAW MATERIALS

2020 ◽  
pp. 86-93
Author(s):  
Д. М. КОЗАЧЕНКО ◽  
В. В. МАЛАШКІН ◽  
М. І. БЕРЕЗОВИЙ ◽  
О. Л. ІСКРА
Keyword(s):  
Carrying Capacity ◽  
Raw Materials ◽  
Mining Industry ◽  
Practical Significance ◽  
Processing Plant ◽  
Technical Equipment ◽  
Railway Transport ◽  
Industrial Enterprises ◽  
Railway Infrastructure ◽  
Crushing Plant

Purpose. In modern conditions, the problem of increasing the efficiency of the railway transport of industrial enterprises is very urgent, and, first of all, this applies to enterprises of the metallurgical and mining industry, which are the largest recipients and consignors of goods by the railways of Ukraine. In this regard, the purpose of the study is to develop measures to increase the throughput and carrying capacity of the railway infrastructure of a mining enterprise in the context of an increase in the transportation of raw materials. Methods. The analysis of the technical equipment and technology of the railway transport of a large mining and processing plant in Ukraine was carried out using the methods of graphical analytical modeling. Results. The track development of the mining and processing plant ensures the delivery of iron ore from the quarry to the crushing and processing plant. The plant is presented as a system for transporting raw materials from loading points to unloading points, in which the process of its consumption is uniform (unloading ore on the tracks of a crushing plant), and the process of its replenishment is uneven (loading ore at loading points). Smoothing the uneven supply of raw materials between the points of loading and unloading provides the track capacity of the station adjacent to the crushing plant. The carrying capacity of the existing railway infrastructure of the plant does not ensure the mastery of the estimated volumes of transportation of raw materials. Analysis of the results of graphical modeling of the mining and processing plant showed that the limiting elements are the processing capacity of the crushing plant and long distances between the loading points and the abutment station. Organizational and technical solutions are proposed to increase the throughput of the railway infrastructure of the mining and processing plant. Practical significance. The results obtained can be used in the implementation of recommendations aimed at increasing the efficiency of the functioning of the railway transport of the mining and processing plant in conditions of an increase in the volume of transportation of raw materials.

scholarly journals National Technology Initiative as a Platform for the Diffusion of Convergent Technologies in the Russian Mining Industry

2021 ◽  
Vol 278 ◽  
pp. 03014
Author(s):  
Elena Dotsenko ◽  
Natalia Ezdina ◽  
Oksana Galiuta ◽  
Michal Cehlar
Keyword(s):  
Raw Materials ◽  
Technological Development ◽  
Mining Industry ◽  
Global Market ◽  
Technology Initiative ◽  
Resource Saving ◽  
New Production ◽  
Industrial Enterprises ◽  
Technological Convergence ◽  
National Technology

In recent decades, the global processes of technological development of industry, due to innovative modernization, have become comprehensive, affecting both manufacturing and raw materials industries. One of the components of global technological modernization is technological convergence – the combination of technologies from different industries, resulting in a inter-industry genesis of new production methods. Despite the fact that technological convergence is transforming, first of all, the industries associated with the deep processing of raw materials and highly intelligent intangible production, mining industry is in the greatest need for modernization. This is due to turbulent demand and volatile prices for mineral resources in the global market, with the widespread introduction of energy and resource saving technologies. Therefore, the mining sector of the Russian economy is looking for a "fulcrum" in initiating the diffusion of convergent technologies in mining and management processes of industrial enterprises. This "fulcrum" is intended to be the National Technology Initiative, the key target markets of which are fully consistent with the technological requirements of the Russian mining complex.

scholarly journals FEATURES OF CALCULATION OF THE REQUIRED QUANTITY OF GRAIN TERMINAL TRACKS IN SEA PORTS IN MODERN CONDITIONS

2021 ◽  
pp. 80
Author(s):  
D. KOZACHENKO ◽  
M. BEREZOVYI ◽  
V. MALASHKIN ◽  
S. BORYCHEVA
Keyword(s):  
Practical Significance ◽  
Exponential Dependence ◽  
Technical Equipment ◽  
Railway Transport ◽  
Short Term ◽  
Car Traffic ◽  
Urgent Task ◽  
Sea Ports ◽  
Total Capacity

Purpose. Ukraine is one of the world's five largest producers of grain crops. Much of the grain is exported. Traditionally, grain cargoes are exported through the western land crossings and seaports of the Black and Azov Seas, with the bulk of grain exports going through the port of Nikolaev and the ports of Greater Odessa. Rail transport provides delivery to exporting ports up to 2/3 of the total volume of grain transshipment in ports. Given the significant number of operations in the general technological process of processing grain wagons in ports, the required capacity of technical equipment of railway transport (number of tracks, locomotives, weighing devices, etc.) plays a significant role in the duration of the transshipment process and total operating costs. In this regard, determining the required number of ways to service the flow of grain for export is an urgent task. Methods. Comprehensive analysis of technical equipment and technology of railway transport of grain terminals in seaports, statistical analysis, graph-analytical modeling. Results. Based on the processing of statistics on the delay of wagons due to commercial marriages with grain cargo in the seaport, the conditional division of detained wagons due to and, consequently, the duration of delay of wagons into long and short. The characteristics of random values of the delay of the car are established and the dependence of the number of detained cars on the value of the total car traffic with grain cargo entering the transshipment is obtained. For short-term delays it is a polynomial dependence of the second degree, for long-term delays it is characterized by exponential dependence. Based on research, an additional track capacity has been established for the sedimentation of detained cars and recommendations have been developed for the number of such tracks and their length. Based on the rationing of the duration of shunting operations with delayed wagons, an additional working fleet of shunting locomotives for servicing delayed wagons was determined and recommendations for the location of wagon scales for commercial weighing of wagons in the process of processing grain wagons in the port. Practical significance. The obtained results can be used to determine the number of tracks and the total capacity of grain terminals in seaports. The duration of additional shunting operations to service the detained cars allows to clarify the calculation of the required locomotive fleet of grain terminals.

scholarly journals ANALYSIS OF TECHNICAL AND TECHNOLOGICAL PARAMETERS OF UKRAINIAN PRE-PORT RAILWAY STATIONS

2021 ◽  
pp. 36
Author(s):  
O. CHERNOVA ◽  
R. VERNYHORA ◽  
A. OKOROKOV ◽  
A. KIMAN
Keyword(s):  
Effective Interaction ◽  
Throughput Capacity ◽  
Practical Significance ◽  
Technical Equipment ◽  
Technological Parameters ◽  
Scientific Publications ◽  
Sea Transport ◽  
Railway Stations ◽  
Railway Infrastructure ◽  
Low Efficiency

Purpose. The aim of the work is a comprehensive analysis of the technical and technological parameters of pre-port railway stations in Ukraine as key elements of the port infrastructure, ensuring the interaction of railway transport with seaports. Methodology. In the process of research, the methods of analysis and synthesis were used to study the content and the main provisions of scientific publications on the issues of establishing effective interaction between rail and sea transport,  with their subsequent comparison and generalization; methods of statistical analysis for research and systematization of technical equipment of port stations. Results. More than 60% of export cargoes go through Ukrainian ports; while 75% of export volumes are delivered to ports by rail. Currently, due to changes in the conditions for the functioning of the economy and the transport system of Ukraine, there is an imbalance between the capacities of ports and the port railway infrastructure for processing freight flows. Based on the analysis, it was found that the throughput of most stations does not correspond to the prospective, and for some stations - and the actual, volumes of work. In particular, for some stations, the capacity of track development is insufficient; a significant problem is also the low efficiency of the shunting means. An effective way to solve the problem of reducing the imbalance in the processing capacity of ports and the pre-port railway infrastructure is public-private partnership in the implementation of appropriate investment projects, the assessment of which should be carried out using modern scientific approaches. Scientific novelty. The authors have systematized the existing technical equipment of the port stations of Ukraine from the point of view of its sufficiency to ensure the existing and prospective volumes of transportation. Practical significance. The results obtained make it possible to provide a scientific basis for further research into assessing the throughput capacity of pre-port railway stations and the effectiveness of infrastructure projects aimed at increasing it.

scholarly journals Prospects for Industrial Development in the Republic of Karakalpakstan

2020 ◽  
Vol 6 (10) ◽  
pp. 258-265
Author(s):  
K. Ubaydullaev ◽  
A. Alimov
Keyword(s):  
Industrial Development ◽  
Service Sector ◽  
Oil And Gas ◽  
Life Support ◽  
Raw Materials ◽  
Mining Industry ◽  
Industrial Sector ◽  
Priority Area ◽  
Industrial Enterprises ◽  
The Creation

This article addresses a number of challenges related to the complexity of industry research. The points of view in solving these problems were studied, and methodological bases for the development of the industrial sector were developed. It is proposed to create in the lower reaches of the Amu Darya large centers of the oil and gas chemical industry, mining industry with non-ferrous metallurgy, industrial bases for the agro-drainage cycle of production, light and processing industries. The first priority should be the formation of the foundations of the market environment in industries. This process is currently taking place in two directions: the creation of new private, joint-stock and other forms of enterprises, as well as through the modernization of industries, the second priority area of economic reforms in industry should be the creation of enterprises that are technologically advanced and have the ability to produce innovative products; the third priority area is the development of infrastructure industries that produce life support products for the population and the service sector, as well as the creation of quickly recouped industrial enterprises that provide deep processing of agricultural raw materials and mineral resources.

scholarly journals Geopolymers from mining tailings for more sustainable raw material supply

2019 ◽  
Vol 274 ◽  
pp. 05001 ◽  
Author(s):  
Robert Obenaus-Emler ◽  
Mirja Illikainen ◽  
Mahroo Falah ◽  
Päivi Kinnunen ◽  
Kari Heiskanen
Keyword(s):  
Water Cycle ◽  
Raw Materials ◽  
Mining Industry ◽  
Mining Operation ◽  
Project Planning ◽  
Waste Rock ◽  
Raw Material ◽  
Processing Plant ◽  
The European Union ◽  
Material Supply

For ecologic and economic reasons tailings, waste rock and water management become progressively important factors in the mining industry. The European Union funded project ‘Integrated mineral technologies for more sustainable raw material supply’ (ITERAMS) aims to (1) close the water cycle of the mineral processing plant (i.e. minimizing the release of wastewater to the adjacent environment), and (2) to use tailings (and waste rock) as raw materials for geopolymers. This will (1) enable significantly more efficient water recycling at the mining sites, (2) deliver cost savings and added income due to the valorisation of solid waste residues, and (3) minimize the overall environmental footprint of the mining industry and will therefore help improving its performance and as a consequence its social position. The developed solutions influence the total lifecycle of the mining operation, as they provide input to project planning and operational phases as well as to the closure and recultivation. In this paper, the valorisation of the tailings and the waste rock is discussed. The main applications of the geopolymer products are (1) backfill material to fill open cavities from the mining operation and (2) a cover for surface deposits of tailings to store them environmentally safe – i.e. seal them off from surface water streams and oxidising conditions.

scholarly journals ANALYSIS OF PROSPECTS AND PREREQUISITES FOR THE ESTABLISHING IN UKRAINE OPERATOR OF THE SERVICE FACILITY

2020 ◽  
pp. 66-73
Author(s):  
Д. М. КОЗАЧЕНКО ◽  
М. І. БЕРЕЗОВИЙ ◽  
В. В. МАЛАШКІН ◽  
А. Р. МІЛЯНИЧ
Keyword(s):  
Negative Impact ◽  
Research Question ◽  
Normal Operation ◽  
State Enterprise ◽  
Technical Equipment ◽  
Railway Transport ◽  
Sea Transport ◽  
Railway Stations ◽  
Access Road ◽  
Railway Infrastructure

Annotation. The article analyzes the interaction of the main railway and sea transport in modern conditions. A review of new studies and publications in this direction showed that their disadvantage is the lack of a systematic approach and focus on solving only certain organizational issues of interaction. The researches of scientists of the Dnipro University of Railway Transport named after academician V. Lazaryan, characterized by a comprehensive coverage of all problematic issues, are highlighted. Cases of servicing ports by non-public railway stations, in which additional costs of stevedoring companies arise in the absence of a mechanism for their compensation, are highlighted.To obtain an answer to the main research question - the nature of the shortage of receiving-departure and marshalling tracks at railway stations of port railway junctions and the associated delays of wagons waiting for delivery to the port for cargo operations, the work of the Odessa railway junction and the Odessa-Port station serving State Enterprise "Odessa Sea Trade Port".The paper analyzes the technical equipment of the railway infrastructure of the stations of the Odessa junction and formulates a conclusion about the sufficiency of the track development of spans, stations and the throughput of sorting devices. Based on the analysis of the plan for the formation of trains at the junction stations, the organization of work with dispatch routes and container trains, elements of a negative impact on the organization of the work of the port and the Odessa-Port station were identified. These include systemic violations of the train formation plan at the Odessa-Port station, as well as peak loads on the railway infrastructure of the station and cargo devices when servicing railway routes upon arrival and during the formation of dispatch routes and container trains. Inaccuracies in the unified technological process of operation of State Enterprise "OSTP" and the Odessa-Port station were noted when determining shunting locomotives serving the station and the port, which lead to an underestimated number of locomotives and, as a result, additional delays of the rolling stock.The main reason for the disruption of the normal operation of the infrastructure of the railway stations of the Odessa railway junction was established – a systematic violation of the current plan for the formation of trains.As a recommendation for the creation of an operator of the railway infrastructure of the Odessa-Port station and the access road of the State Enterprise "OSTP", the need to improve the draft law of Ukraine "About Railway Transport" was considered in order to create a legislative framework for companies of operators of railway infrastructure similar to European ones.

ON THE PROCESSING OF HEMATITE RAW MATERIALS AT THE KRYVOROZHSK MINING AND PROCESSING PLANT OF OXIDIZED ORE ON TECHNOLOGY OF DIRECT RECOVERY ITmk3

2018 ◽  
pp. 32-37
Author(s):  
P.I. Loboda ◽  
Younes Razaz ◽  
S. Grishchenko
Keyword(s):  
Magnetic Properties ◽  
Cast Iron ◽  
Iron Content ◽  
Raw Materials ◽  
Direct Reduction ◽  
Processing Plant ◽  
High Iron Content ◽  
High Iron ◽  
Direct Restoration ◽  
First Time

Purpose. To substantiate the efficiency of processing hematite raw materials at the Krivoy Rog Mining and Processing Plant of Oxidized Ores using the direct reduction technology itmk3®. Metodology. Analysis of the results of the itmk3® direct restoration technology developed by Kobe Steel Ltd., Japan and Hares Engineering GmbX, Austria, with a view to using it to process Krivbass hematite ores into granulated iron (so-called “nuggets”). Findings. The involvement in the production of hematite ores (oxidized quartzite) of Krivbass with high iron content, but with low magnetic properties for their processing into granular cast iron is grounded. Originality. The use of itmk3® direct reduction technology from Kobe Steel Ltd., Japan and Hares Engineering GmbH, Austria for the processing of Krivbass hematite ores into granular cast iron is justified for the first time. Practical value. The efficiency of the use of hematite ores (oxidized quartzite) has been substantiated, which can significantly reduce the costs in the mining cycle for the economical production of metallurgical products.

Coordination of technology of railway operation of the Republic of Tajikistan and organization of railways in international traffic

2018 ◽  
Vol 77 (4) ◽  
pp. 211-217 ◽  
Author(s):  
P. N. Pulatov
Keyword(s):  
Rolling Stock ◽  
Railway Transport ◽  
Transport Services ◽  
Railway Infrastructure ◽  
External Conditions ◽  
The Republic ◽  
Railway Operation ◽  
Required Quality

Current geopolitical and economic conditions for the functioning of railway transport in most post-Soviet states are such that it is extremely difficult to provide required quality of transport services and break-even operations at high expenses for maintaining the railway infrastructure and rolling stock. Dynamics of transportation of the Tajik Railway (TSR) is shown, which displays that most of its sections are classified as low-intensity ones. The paper proposes methodical principles, setting and qualitative analysis of the task of rationalization of operational work and organization of car flows for international transportation, taking into account the specifics of the Tajik Railway. There is a problem of complex maintenance of the efficiency of operational work in modern conditions based on the synthesis of the tasks of self-management (rational internal operational technology of the Tajik Railway) and coordination tasks (technological interaction with railway administrations of other states). Author substantiated the necessity of solving this problem. Proposed classification of technological restrictions and controlled variables in the performance of transport takes into account methods for changing external conditions for the functioning of the railway landfill and methods for increasing internal efficiency of its operation. The search for the solution of the problem involves direct search of variants along its ordered set with clipping of groups of variants that do not correspond to constraints, with the subsequent finding of compromise control over a set of effective alternatives.

scholarly journals A New Face of Mining Engineer—International Curricula to Sustainable Development and Green Deal (A Case Study of the Wrocław University of Science and Technology)

2021 ◽  
Vol 13 (3) ◽  
pp. 1393
Author(s):  
Karolina Adach-Pawelus ◽  
Anna Gogolewska ◽  
Justyna Górniak-Zimroz ◽  
Barbara Kiełczawa ◽  
Joanna Krupa-Kurzynowska ◽  
...  
Keyword(s):  
Higher Education ◽  
Sustainable Development ◽  
Raw Materials ◽  
Research Question ◽  
Science And Technology ◽  
Mining Industry ◽  
Mining Engineer ◽  
European Institute ◽  
Innovation And Technology ◽  
Development Goals

The mining industry in the world has undergone a major metamorphosis in recent years. These changes have forced higher education to modify the curricula in a thorough way to meet the mining entrepreneurs’ needs. The paper’s scope is to answer the research question—how to attract students and implement Sustainable Development Goals (SDGs) in higher education in mining engineering? Based on the case of international cooperation carried out at the Faculty of Geoengineering, Mining and Geology of the Wrocław University of Science and Technology (WUST) within the framework of educational projects co-financed by European Institute of Innovation and Technology (EIT) and EIT Knowledge and Innovation Communities Raw Materials (EIT RM), the authors prove that the idea of sustainable development can be introduced into the system of teaching mining specialists at every level of their higher education (engineering and master’s studies), through developing their new competencies, introducing new subjects taking into account innovative solutions and technologies, or placing great emphasis on environmental and social aspects. Examples of new curricula show a good way to change into the new face of a mining engineer.

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