scholarly journals Problems of Designing Transport Systems of «siberian Antrazit»

2020 ◽  
Author(s):  
Natalia Gorbunova ◽  
Oleg Mirkushov
Keyword(s):  
Operating Conditions ◽  
Open Pit ◽  
Transport Systems ◽  
Open Pit Mining ◽  
Optimal Route ◽  
Opencast Mine ◽  
Shortest Route ◽  
Shortest Distance ◽  
Coal Supply ◽  
Open Cast

Abstract The article discusses the operating conditions of transport systems located in open pit mining of the enterprise of Siberian Anthracite JSC using «Kolyvanskij» opencast mine as an example. The most optimal route for coal supply railway lines from the open pit to the concentration plants was designed, the use of which will increase the enterprise’s productivity and reduce the risks of using vehicles. When searching for the optimal route for coal delivery from «Kolyvanskij» open-pit mine to the «Listvjanskaja-1» and «Listvjanskaja-2» enrichment plants, the method of dynamically programming the optimal route (the optimality principle of R. Bellman) was used as an algorithm. The method of dynamic programming is to determine the shortest distance between nodes (places of intersection of the proposed railway tracks), by successive solutions of which, the shortest route is revealed. Based on the obtained parameters, two designed tracks were compared and, as a recommendation for solving technological issues in the design of transport systems of a mining enterprise it was proposed to use the optimal railway from the open-cast mine to «Listvjanskaja» «2 way» enrichment plant.

scholarly journals Problems of Designing Transport Systems of «siberian Antrazit»

2021 ◽  
Author(s):  
Natalia Gorbunova ◽  
Oleg Mirkushov
Keyword(s):  
Bellman Equation ◽  
Railway Track ◽  
Open Pit ◽  
Motor Vehicles ◽  
Transport Systems ◽  
Dynamic Programming Method ◽  
Optimal Route ◽  
Open Pit Mines ◽  
Route Design ◽  
Delivery Route

Abstract The main aim of this work was to identify an optimal route design for the delivery of coal from the open pit mines to the enrichment plants on the example of the Sibathractic Group’s mine “Kolyvansk” and its enrichment plants «Listvjanskaja-1» and «Listvjanskaja-2». The new route would allow the corporation to increase production rates and to reduce the risks associated with the use of motor vehicles. Dynamic programming method, mainly the Bellman equation principle, was chosen as an algorithm for searching for the optimal route from Kolyvansky mine to the «Listvjanskaja-1» and «Listvjanskaja-2». In the course of the study the two possible routes were selected. Further comparison indicated that only one of them - “2nd railway track”, corresponded to all the recommended parameters for the delivery route. All the findings are presented in detail in the study.

scholarly journals Development of technological schemes for open-pit mining of deposits using “mobile crushing-reloading-conveyor complexes”

2020 ◽  
Vol 201 ◽  
pp. 01010
Author(s):  
Tulkin Annakulov
Keyword(s):  
Technological Scheme ◽  
Open Pit ◽  
Open Pit Mining ◽  
Transport Equipment ◽  
Cyclic Flow ◽  
Open Cast Mining ◽  
Annual Productivity ◽  
Sequential Mining ◽  
Working Out ◽  
Open Cast

This article analyses the use of cyclic-flow technology schemes with mobile crushing and reloading complexes in open cast mining. An analysis of the application of cyclic-flow technology schemes with mobile crushing and reloading complexes in open cast mining shows that the main directions of its radical improvement are the development, creation and implementation of fundamentally new mining transport equipment and technological schemes for its quarries, which include: “mobile excavators crushing and transhipment plants and conveyor systems". Technological schemes for the development of rocks with an end arrangement of mobile complexes using a single bucket excavator and conveyor transport, with an end arrangement of mobile complexes and an increased width of the working platform during conveyor transport, with an end arrangement of mobile complexes and the presence of a mobile interstage loading crane with sequential mining at three horizons, a methodology has been developed for determining the working time and annual productivity of mobile crushing and handling conveyor complexes and a new technological scheme for the development of overburden ledges using mobile crushing and handling conveyor complexes. To reduce the time for idling the complex and reduce the number of exit ledges, a new technological scheme for the development of overburden ledges with the use of mobile complexes is recommended. As a result of the calculations according to the developed method, when working out two benches with different block lengths, the dependence of the annual productivity of the complex on the block length was established.

scholarly journals The challenges of Industry 4.0 and the need for new answers in the mining industry

2021 ◽  
pp. 154-166
Author(s):  
VELIKANOV Vladimir Semenovich ◽  
Keyword(s):  
Industry 4.0 ◽  
System Analysis ◽  
Mining Industry ◽  
Operating Conditions ◽  
Raw Material ◽  
Open Pit ◽  
Open Pit Mining ◽  
Mining Equipment ◽  
Mining Operations ◽  
Technical Requirements

Relevance of the work is due to the need for further modernization of the economy of the Russian Federation, which involves solving both basic theoretical and applied problems of the domestic mining industry. This circumstance largely determines not only the state of the state’s production resources, but also its scientific and technical potential. The global trend in the development of mining operations in the world is mainly determined by open pit mining of raw material resources. Open pit mining is characterized by an increase in the volume of processed rock mass, improved production processes through the use of advanced technologies, which entails the use of high-capacity mining machines. The main problems of open-cut mining are the following: complex mining and geological and mining-technical conditions; depletion of the mineral resource base; and constantly changing environmental conditions. All this leads to an increase in the cost of mining and a decrease in the competitiveness of the products of mining companies. Objective of the work. To establish the need to modernize traditional technologies in open pit mining with the possibility of integrating the main ideas of Industry 4.0. Research methodology. When solving the set tasks a complex approach was used, including: scientific analysis and synthesis of previously published research, analytical studies, laboratory experiment and observations of the work of open-pit excavators in real operating conditions. The methods of mathematical statistics include system analysis and modeling with the use of information technologies form the methodological basis of the research. Results. This paper deals with the issues of modelling the cab of a quarry crawler excavator to meet the technical requirements for the excavator cab in protecting against tipping and rock impacts. Model setup and analysis of simulation results after loading are performed using Autodesk Inventor software. An optimal finite-element model of an excavator operator’s cabin has been developed to assess the effectiveness of its structural protection. Conclusions. Implementing the core ideas of Industry 4.0 is a complex scientific and technical challenge. Its solution is connected with significant economic costs, including modernization of mining equipment, infrastructure, as well as changes in the technology of open-cast mining. The implementation of complex automated control systems and practical application of the latest information and geoinformation technologies will unambiguously give high estimated figures and have high applied potential, and ultimately ensure safety of open pit mining, increase of efficiency and productivity, possibility of mining in regions with complex mining and geological and mining-technical conditions.

scholarly journals The concept of controlling the unmanned vehicles in open pit mining

2020 ◽  
Vol 1 (8) ◽  
pp. 109-120
Author(s):  
Ivan Chicherin ◽  
◽  
Boris Fedosenkov ◽  
Ilia Syrkin ◽  
Vladimir Sadovets ◽  
...  
Keyword(s):  
Unmanned Vehicles ◽  
Open Pit ◽  
Open Pit Mining ◽  
Opencast Mine ◽  
Movement Dynamics ◽  
Wavelet Representations ◽  
Mining Face ◽  
Analytical Tools ◽  
Effective Conditions ◽  
A Current

Introduction. The article presents the results of studies related to the description of the synthesis and further analysis of the dynamic behavior of unmanned vehicles (UMV) operating in coal-mining pits and other mining quarries. The urgency of the discussed study is dictated by the need to create safe and effective conditions for stripping / mining and transportation operations. This is ensured, among other things, by the operation of unmanned heavy-duty dump cars. Research aim is to develop the concept for the formation of route parameters and models of the movement dynamics of vehicles along technological routes. Methodology. The paper describes the technology for generating and processing the signals in control subsystems as parts of both the computer-aided dispatching system and the on-board autonomous ISSN 0536-1028 «Известия вузов. Горный журнал», № 8, 2020 119 control subsystem of the UMV. The methods used in the research include the study of the forms and characteristics of current trajectories (CT) in relation to a nominal axial trajectory (NAT). In this case, a current trajectory of the UMV is considered within the framework of the so-called S-frames, which are generated in the form of geolocations on a working route of the UMV from the mining face to the place of unloading and vice versa. As a variable characterizing the behavior of the UMV on a current trajectory, a 1D-signal with a time-dependent frequency is adopted, the nature of the change of which is determined by the dynamic shape of a CT with regard to the NAT. Results. Such chirp-signals, together with the wavelet transform apparatus introduced into consideration, allow in a semantically transparent and information-rich video graphic form to represent and subject to further processing the signals characterizing a certain UMV current behavior on the route. The obtained parameters of such secondary wavelet representations of the UMV current dynamics (wavelet maps) are further planned to be used in the subsystem for dynamic modal controlling the UMV movement in the opencast mine. Conclusions. The results of the research allow us to form current routes of UMVs movement according to the models based on the analytical tools accompanying the dynamics of the UMV, proposed in the work.

The issues of optimization parameters of quarry transport systems

2020 ◽  
pp. 583-601
Author(s):  
A. G. Zhuravlev
Keyword(s):  
System Development ◽  
Methodological Approach ◽  
Cost Savings ◽  
Transition Process ◽  
Optimization Methods ◽  
Open Pit ◽  
Transport Systems ◽  
Open Pit Mining ◽  
Optimization Parameters ◽  
Rational Organization

The cost of technological transport in open-pit mining for medium-depth quarries reaches 50 % of the total cost of production of commercial ore, and for deep-exceed this figure. Therefore, optimization of quarry transport systems is an important element in improving the efficiency of mining. The most important element of optimization is through her character the use of optimization to all linked processes on the basis of objective criteria of efficiency, unity and objectivity of the source data, using multilevel data from sensors mounted on the mining and transport machines to total economic values for processing. A promising direction for the implementation of tools for optimizing the processes of open pit mining and in particular transport systems of quarries, as one of the most important subsystems, is the end-to-end digitalization of mining production. The article presents the results of research and methodological approach to the creation of methods of optimization of complex transport systems on the basis of complex computer modeling, both simulation and economic and mathematical. The concept of TSC optimization methods in the absence of expressed maxima or minima of the parameters reflecting the optimization parameters is proposed. The possibilities of optimization of transport systems due to controlled transients are shown, it is established that the rational organization of the transition process provides cost savings of up to 2 times or more. The concept of a dynamic model of the quarry transport system development, reflecting the transition processes in its formation, is presented.

Dynamics of general, occupational morbidity and industrial injuries of Kuzbass miners under the infl uence of technological changes and technical re-equipment of coal mines

2019 ◽  
pp. 242-247
Author(s):  
V. B. Batievskaya
Keyword(s):  
Occupational Diseases ◽  
Coal Mines ◽  
Operating Conditions ◽  
Open Pit ◽  
Open Pit Mining ◽  
Production Environment ◽  
Production Factors ◽  
Industrial Injuries ◽  
Coal Enterprises ◽  
The Relationship

Long-term statistical observations record the highest occupational morbidity in the Kemerovo region in comparison with the data for the Russian Federation as a whole. The article deals with the problems of General and occupational diseases, as well as industrial injuries of miners of coal mines of the Kemerovo region. Hypothesis of the study: technical re-equipment and technological improvements in the coal enterprises of the Kemerovo region will reduce the rates of General and occupational morbidity, as well as reduce injuries in the workplace. The aim of the study was to identify the relationship of General, occupational morbidity and occupational injuries with working conditions in coal enterprises.For statistical analysis, data on General, occupational morbidity, domestic and industrial injuries in the Coal company «Kuzbassrazrezugol» were used. Five groups of harmful production factors were studied: geological, technological, economic, environmental and social. Spearman correlation analysis was used to study the relationship. The extrapolation method was used to determine the stability of the identified dynamics. The interrelation of these parameters with harmful conditions of the production environment is revealed. The forecast of changes in the studied indicators under the influence of technical re-equipment and modernization of production is constructed. Statistical methods of extrapolation and correlation are applied. The Spearman coefficient for each pair of indicators is calculated and the forecast is constructed using a polynomial trend line.The following harmful production factors act on workers engaged in technological processes when conducting open-pit mining: increased levels of noise and vibration, infrasound, pollution of the atmosphere with coal dust and aerosols, unfavorable operating conditions. Th ese factors contribute to the formation of occupational diseases. Th ere is a reliable feedback between these features, and the increase in investment in the modernization of production will re duce the adverse impact on workers of environmental conditions.

scholarly journals Using a wavelet medium for computer-aided controlling the movement of unmanned vehicles along quarry routes

2021 ◽  
Vol 1 ◽  
pp. 103-112
Author(s):  
Ivan V. Chicherin ◽  
◽  
Boris A. Fedosenkov ◽  
Ilia S. Syrkin ◽  
Vladimir Iu. Sadovets ◽  
...  
Keyword(s):  
Wavelet Transforms ◽  
Wigner Distribution ◽  
Matching Pursuit ◽  
Unmanned Vehicles ◽  
Gabor Wavelet ◽  
Open Pit ◽  
Open Pit Mining ◽  
Frequency Distributions ◽  
Time Frequency ◽  
Opencast Mine

Introduction. It is established that the most effective tool for monitoring and controlling the dynamics of current trajectories (CT) of unmanned vehicles (UMV) when moving along opencast mine routes in open pit mining is the wavelet transforms technique. Methodology. A detailed analysis of the procedures related to the technology of converting 1D-current trajectory signals (CT-signals) into a multidimensional medium of time-frequency distributions (TFD) is carried out. The Wigner distribution is selected as a working distribution for processing CT-signals. This distribution is considered from the point of view of its ability to represent one-dimensional CT-signals of UMV in an information-intensive and functionally transparent format of specific TFDs. Research results and analysis. On the example of curved routes, the nature of the so-called forward and reverse transients of CT-signals of UMV, formed in the subsystems of external and autonomous control (ECSS and ACSS) of unmanned vehicles, is considered. Mathematical tools are described for wavelet transformations: Gabor wavelet functions, the wavelet matching pursuit algorithm (MP-algorithm), and Cohen’s class time-frequency wavelet distributions. Conclusion. The procedures of processing the trajectory signals with using the means mentioned above make it possible to implement effectively the functions of controlling the UMV movement along current trajectories formed by the system on opencast mine routes.

scholarly journals Directions for the development of transport machines for open-pit mining

2020 ◽  
pp. 1-5
Author(s):  
Vladimir Koptev ◽  
Alexandra Kopteva ◽  
Tatiana Ivanova
Keyword(s):  
Open Pit ◽  
Transport Systems ◽  
Open Pit Mining ◽  
Current State ◽  
Technical Solutions ◽  
State Of Art

The paper is devoted to the identification (in the form of an intermediate obtained result) of the main trends in the development of transport machines, their systematization, taking into account the current state of art, identification and assessment of the most significant trends in view of innovative prospects. The discussed technical solutions contribute to a significant modernization of transport systems of mining enterprises.  

scholarly journals Study of the efficiency of conveyors of mining transport systems of mining complexes

2020 ◽  
Vol 177 ◽  
pp. 03023
Author(s):  
Maxsud. Kalandarovich Bobojanov ◽  
Oripovich Eshmurodov Ziyodulla ◽  
Muhriddin Tulkin ugli Ismoilov ◽  
Eldor Izam ugli Arziev ◽  
Gulnoza Ziyodullaevna Togaeva
Keyword(s):  
Energy Consumption ◽  
Building Energy ◽  
Open Pit ◽  
Transport Systems ◽  
Open Pit Mining ◽  
Mining Operations ◽  
Conveyor System ◽  
Stage Of Development ◽  
Drive Systems ◽  
Belt Conveyors

The current stage of development of open-pit mining is characterized by mining operations at great depths. Increasing the depth of quarries leads to an increase in the volume and distance of transportation of overburden and ore. Therefore, the task of building energy-efficient transport systems, improving the efficiency of existing belt conveyors of mining transport systems is one of the most urgent tasks. The article examines the efficiency of belt conveyors in mining transport systems mining complexes . Various electric drive systems that can be used on conveyors are compared. We have studied the relative inclination that affects the efficiency of conveyors, as well as parameters related to energy consumption, such as the speed of the belt or the width of the belt, as well as design methods. Various methods of controlling adjustable and non-adjustable electric drives and drag distribution effects drag distribution depending on the flow, the dependence of the belt tilt speed range on the flow, the dependence of power on the flow and the influence of gravity, the energy consumption of the conveyor system is calculated for different traction forces.

scholarly journals Quality Criterion of the Loading and Transport System Operation at Open-Pit Mines

2019 ◽  
Vol 105 ◽  
pp. 01048 ◽  
Author(s):  
Yuri Voronov ◽  
Anton Voronov ◽  
Artyom Voronov
Keyword(s):  
Performance Indicators ◽  
Quality Criterion ◽  
Operational Performance ◽  
Open Pit ◽  
Transport Systems ◽  
Open Pit Mining ◽  
Open Pit Mines ◽  
Modeling Analysis ◽  
Analysis And Synthesis ◽  
Functional Criterion

Loading and transport operations at open-pit mines are performed mainly by heavy loading & transport systems (LTS). One of the main problems of the LTS is a rather low level of its operation quality, mainly due to the imbalanced influence of various factors on the efficiency of the joint operation of shovels and trucks as parts of the LTS. In this article we formulate, derive and analyze a functional criterion for assessing the LTS operation quality at open-pit mines. The rationale, general principles of the functional criterion formation, its general form for mixed (heterogeneous) truck and shovel fleets, which are typical for modern mining LTSs, are presented. For this purpose, modern methods of data collection and processing, mathematical modeling, analysis and synthesis are used. The possibility of assessing the LTS operation quality is very important for identifying the main directions of improving its operational performance and operation quality, for reaching an optimization of the key performance indicators by the quality criterion, and, as a result, for a possible saving of resources during the open-pit mining of minerals.

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