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.

scholarly journals Combined Method of Coal Mining in the Opening of Shallow Layers as a Direction of Innovative Development of Geotechnology

2021 ◽  
Vol 315 ◽  
pp. 01006
Author(s):  
Tatiana Tyuleneva ◽  
Roman Shishkov ◽  
Elena Kucherova ◽  
Marat Moldazhanov
Keyword(s):  
Coal Mining ◽  
Underground Mining ◽  
Methodological Approach ◽  
Production Capacity ◽  
Open Pit ◽  
Open Pit Mining ◽  
Mining Operations ◽  
Balanced Development ◽  
Coal Reserves ◽  
The Cost

In recent years, there has been a decline in the efficiency of coal mining by traditional methods. On the one hand, the volume of coal outside the contour of the cut, which is economically impractical for open-pit mining, is increasing. On the other hand, when using underground geotechnology, the cost of production exceeds the cost of performing mining operations using open geotechnology, this is due to differences in the factors of operation of the open pit and the mine. This circumstance determines the use of open-underground technology for mining coal reserves outside the contour of the open pit as an actual and promising direction. This article describes a methodological approach based on the use of technological schemes for the preparation and treatment of reserves of powerful shallow coal seams, the justification of the parameters of combined geotechnology with a coordinated and balanced development of open and open-underground mining operations with the distribution of reserves for open and open-underground mining of coal reserves beyond the limit contour of the open pit, the preparation of excavation sites directly from its workings and the coordination of production capacity and the speed of their development. Its application will increase the production capacity of the coal mining complex without additional environmental burden and will provide an increased return on investment.

scholarly journals Methodological approach to creation of the 3D model of an oval-shaped open pit mine

2019 ◽  
Vol 123 ◽  
pp. 01049 ◽  
Author(s):  
Serik Moldabayev ◽  
Bolatbek Rysbaiuly ◽  
Zhanat Sultanbekova ◽  
Nurzhigit Sarybayev
Keyword(s):  
3D Model ◽  
Methodological Approach ◽  
Mineral Resources ◽  
Quality Criterion ◽  
Open Pit Mine ◽  
Open Pit ◽  
Open Pit Mining ◽  
Mining Operations ◽  
Optimization Task ◽  
Phased Development

A 3D model of optimal contours phased development of oval-shaped open pit mines is proposed in the article. It is assumed that with enough accuracy the volumetric contour of the open pit mine is interpolated by an elongated elliptic hyperboloid. The calculation formulas for mineral resources are derived and optimal volumes of overburden are determined depending on the mining phase. In this case, the total number of mining phases is set in advance. The stripping ratio is used as a quality criterion of the optimization task. The problem of optimal control is solved using the Bellman function in dynamic programming. All the necessary calculation formulas are obtained in the final form by solving the optimization problem. Their simplicity and substantiation of each conclusion ensure that the results of this study can be successfully applied in practical calculations of the design and planning of mining operations in open pit mining.

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 Fine Land Cover Classification in an Open Pit Mining Area Using Optimized Support Vector Machine and WorldView-3 Imagery

2019 ◽  
Vol 12 (1) ◽  
pp. 82 ◽  
Author(s):  
Weitao Chen ◽  
Xianju Li ◽  
Lizhe Wang
Keyword(s):  
Remote Sensing ◽  
Land Cover ◽  
Classification Accuracy ◽  
Optimization Methods ◽  
Land Cover Classification ◽  
Mining Area ◽  
Open Pit ◽  
Open Pit Mining ◽  
Support Vector ◽  
Carbonate Index

Fine land cover classification in an open pit mining area (LCCOM) is essential in analyzing the terrestrial environment. However, researchers have been focusing on obtaining coarse LCCOM while using high spatial resolution remote sensing data and machine learning algorithms. Although support vector machines (SVM) have been successfully used in the remote sensing community, achieving a high classification accuracy of fine LCCOM using SVM remains difficult because of two factors. One is the lack of significant features for efficiently describing unique terrestrial characteristics of open pit mining areas and another is the lack of an optimized strategy to obtain suitable SVM parameters. This study attempted to address these two issues. Firstly, a novel carbonate index that was based on WorldView-3 was proposed and introduced into the used feature set. Additionally, three optimization methods—genetic algorithm (GA), k-fold cross validation (CV), and particle swarm optimization (PSO)—were used for obtaining the optimization parameters of SVM. The results show that the carbonate index was effective for distinguishing the dumping ground from other open pit mining lands. Furthermore, the three optimization methods could significantly increase the overall classification accuracy (OA) of the fine LCCOM by 8.40%. CV significantly outperformed GA and PSO, and GA performed slightly better than PSO. CV was more suitable for most of the fine land cover types of crop land, and PSO for road and open pit mining lands. The results of an independent test set revealed that the optimized SVM models achieved significant improvements, with an average of 8.29%. Overall, the proposed strategy was effective for fine LCCOM.

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.

scholarly journals Environmental and economic assessment of the possibilities to increase the land preservation level in terms of open-pit mining

2021 ◽  
Vol 280 ◽  
pp. 11002
Author(s):  
Yevheniy Babets ◽  
Yevheniy Terekhov ◽  
Taras Mormul ◽  
Iryna Melnikova ◽  
Vitalina Komirna
Keyword(s):  
Land Reclamation ◽  
Methodological Approach ◽  
Economic Assessment ◽  
Open Pit ◽  
Open Pit Mining ◽  
Land Area ◽  
Mineral Extraction ◽  
Research Results ◽  
Economic Use ◽  
Economic Expediency

Conditions of the planning of open-pit mining objects have been identified, making it possible to reduce the need in the allotted land area during mineral extraction. The research results have allowed proposing a methodological approach to determine economic expediency of the increase in the technogenic land reclamation level under conditions of open-pit mining, being the reserves to expand the technogenic land areas returned to the economic use.

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.

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