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.  

Current state and perspectives in automation of the open pit mining operations

2019 ◽  
Vol 8 (30) ◽  
pp. 115-123
Author(s):  
A.A. Sobolev ◽  
◽  
G.V. Sekisov ◽  
A.Yu. Cheban ◽  
N.M. Litvinova ◽  
...  
Keyword(s):  
Open Pit ◽  
Open Pit Mining ◽  
Mining Operations ◽  
Current State

scholarly journals Current state of peatland soils as an effect of long-term drainage – preliminary results of peatland ecosystems investigation in the Grójecka Valley (central Poland)

2016 ◽  
Vol 67 (1) ◽  
pp. 3-9 ◽  
Author(s):  
Bartłomiej Glina ◽  
Piotr Gajewski ◽  
Zbigniew Kaczmarek ◽  
Wojciech Owczarzak ◽  
Paweł Rybczyński
Keyword(s):  
Monitoring Program ◽  
Mining Industry ◽  
Soil Classification ◽  
Field Studies ◽  
Open Pit ◽  
Open Pit Mining ◽  
Central Poland ◽  
Current State ◽  
Mineral Soils

AbstractUnderstanding the effect of long-term drainage of peatland areas is helpful in future peatland management and regulations of water conditions. The aim of this work was to assess the current state of fen peatland soils in the Grójecka Valley (eastern part of the Wielkopolskie voivodeship, central Poland), affected by long-term agricultural use (pastures, meadows) since the 1960s and potentially by lignite open pit mining industry (KWB Konin) since 1980s. Field studies were carried out in 2015 in selected fen peatland areas. Soil material for laboratory analysis was collected from genetic horizons from four soil profiles. The surface horizons of studied organic and organo-mineral soils were built with well-developed moorsh material. They were classified as medium moorshiefied – MtII (profile 1, 3 and 4) and strongly moorshiefied – MtIII (profile 2). Obtained results of physical and physico-chemical analysis indicate that long-term peatland utilization connected with potential impact of the lignite mining, transformed mainly the upper horizons of studied organic and organo-mineral soils. However, despite obvious strong human impact on peatlands ecosystems, we cannot exclude the climate variables, what should be confirmed by long-term monitoring program. Furthermore, presented paper indicated that new subtype moorsh-muddy soils (in Polish: gleby murszowo-mułowe) within the type of gleyic soils should be implemented in the next version of Polish Soil Classification.

Current State of Labour Conditions, Occupational Morbidity and Improvement of Medical and Preventive Care for Employees of Mining Operations

2021 ◽  
pp. 139-143
Author(s):  
A.G. Chebotarev ◽  
V.F. Pfaf ◽  
I.Yu. Gibadulina
Keyword(s):  
Russian Federation ◽  
Social Protection ◽  
Open Pit ◽  
Open Pit Mining ◽  
Hazard Class ◽  
Mining Operations ◽  
Ministry Of Health ◽  
Workplace Conditions ◽  
Current State ◽  
The Russian Federation

The article describes the current state of labour conditions and occupational morbidity, as well as measures to improve medical examinations of employees of mining companies. Hygienic studies have shown that labour conditions at these operations were and remain harmful. A general assessment of the workplace conditions of the main jobs at these companies corresponds to the 3rd and 4th Subclasses of Hazard Class 3. The levels of occupational morbidity and its structure are presented. More than 70% of newly detected occupational diseases in both underground and open-pit mining were registered among persons whose workplaces were classified as Subclasses 3.3-3.4. The article provides recommendations on conducting preliminary and periodical examinations of workers in accordance with the provisions of Order No. 988n/1420n of the Ministry of Labour and Social Protection and the Ministry of Health of the Russian Federation dated December 31, 2020, and Order No. 29n of the Ministry of Health of the Russian Federation dated January 28, 2021, that were introduced on April 1, 2021.

scholarly journals Choice of the simulator implementation method for a three-dimensional modeling system of open-pit mining operations.

2020 ◽  
Vol 11 (8-2020) ◽  
pp. 83-91
Author(s):  
A.V. Trashkova ◽  
◽  
A.V. Vicentiy ◽  
Keyword(s):  
Professional Training ◽  
Three Dimensional ◽  
Open Pit ◽  
Open Pit Mining ◽  
Mining Operations ◽  
Three Dimensional Modeling ◽  
Dimensional Modeling ◽  
Current State ◽  
Implementation Method ◽  
Made In

The paper discusses the current state of simulators development to provide professional training in mining. A brief description of the mostcommon types of simulators is given. A choice has been made in favour of implementing a VR simulator for a digital career. A brief description of the current state of development of the project for a three-dimensional modeling system for open-pit mining operations is given.

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.

CURRENT STATE OF THE RESOURCE BASE OF COAL MINING INDUSTRY IN KUZBASS

2020 ◽  
Vol 2 (1) ◽  
pp. 191-201
Author(s):  
S.V. SHAKLEIN ◽  
◽  
M.V. PISARENKO ◽  
◽  
Keyword(s):  
Coal Mining ◽  
Mining Industry ◽  
Coal Industry ◽  
Raw Material ◽  
Open Pit ◽  
Open Pit Mining ◽  
Material Base ◽  
Resource Base ◽  
Current State ◽  
Production Technologies

Analysis of the grade composition of the mineral resource base of the distributed and undistributed subsoil Fund as of 01.01.2018 showed a decrease in reserves of coal intended for open pit mining. In the future, the production of a number of technological grades of coal (gas fat (GZh), fat (Zh), coking fat (KZh), coking (K), coking caking low-metamorphized (KCN), coking caking (KC), lean caking (OC), low caking (CC) is possible only by underground method. The expansion of the raw material base of the Kuzbass coal industry and the support of coal production volumes, primarily by the technological of grades coking fat (KZh), coking (K), coking caking (KC), lean caking (OC), low caking (CC) involves exploration, the use of unconventional production technologies and tax preferences for coal mining enterprise

scholarly journals Improvement of technological processes for mining solid mineral resources

2021 ◽  
Vol 5 (1(61)) ◽  
pp. 41-45
Author(s):  
Anatolii Novak ◽  
Eduard Fesenko ◽  
Yevhen Pavlov
Keyword(s):  
Energy Use ◽  
New Technologies ◽  
Coal Mines ◽  
Open Pit ◽  
Open Pit Mining ◽  
Mining Operations ◽  
Technical Literature ◽  
Technological Processes ◽  
Geological Conditions ◽  
Technical Solutions

The object of research is the technological processes of the development of deposits and the extraction of solid minerals by underground and open-pit methods. The improvement of technological processes is achieved through the use of existing original technical solutions, which are currently advisable to use in practice. The work is aimed at increasing the efficiency of explosive energy use, improving the technological processes of mining operations in coal mines and open pits of mining enterprises. In the course of the study, an analysis of technical literature on mining topics was used, a search for copyright certificates for inventions and patents on the same topic was carried out. There was a search for innovative solutions that are expedient to apply at the present time. In the course of the analysis, the work shows ideas, methods of coal mining, systems for the development of coal seams, methods of destruction of rocks, microbiological reclamation and other new technologies and devices. The most promising technologies have been proposed for in-depth study, implementation and use in appropriate mining and geological conditions. The proposed technologies, for various reasons, have not yet found wide practical application at mining enterprises. Due to the application of the proposed technical solutions and technologies in practice in the conditions of existing coal mines and open pits, significant economic, environmental and financial effects can be obtained. This study was carried out in order to bring to a wide circle of specialists technical solutions that can contribute to a significant improvement in the technology of mining solid minerals, both in underground and open-pit mining all over the world.

scholarly journals Theoretical Features of Rope Shovels and Hydraulic Backhoes Using at Open Pit Mines

2018 ◽  
Vol 41 ◽  
pp. 01003 ◽  
Author(s):  
Andrew Strelnikov ◽  
Sergey Markov ◽  
Ludger Rattmann ◽  
Dieter Weber
Keyword(s):  
Western Siberia ◽  
Open Pit ◽  
Open Pit Mining ◽  
Joint Work ◽  
Coal Seams ◽  
Mining Operations ◽  
Open Pit Mines ◽  
Advantages And Disadvantages ◽  
Technical Solutions ◽  
Open Coal

Open coal mining companies in Kuzbass (Western Siberia, Russia) constantly face challenges to increase the economic efficiency of mining operations, reduce coal losses and increase profitability. One of the ways to increase the efficiency of open pit mining is to improve the technology for the development of coal-bearing zones of quarry fields on complex structured inclined and steep deposits. At present, the projects for promising deposits have been completed, and a number of operating open pits conduct the development of coal-bearing zones along their entire width by horizontal layers. The excavating and loading equipment for overburden and mining operations in these zones is diverse: quarry rope shovels, hydraulic backhoes or their joint work. When they work together in the coal-bearing zone, the rope shovels extracts the interbeds, and the hydraulic backhoes extract the coal seams. However, such technical solutions are not sufficiently substantiated. The fact is that rope shovels and hydraulic backhoes have their advantages and disadvantages in operating.

scholarly journals Features of the Excavation and Loading Equipment of Various Types in the Development of Inclined and Steep Beds

2019 ◽  
Vol 105 ◽  
pp. 01023 ◽  
Author(s):  
Valery Kolesnikov ◽  
Alexander Katsubin ◽  
Victor Martyanov ◽  
Alexander Dobrov
Keyword(s):  
Coal Mining ◽  
Economic Efficiency ◽  
Open Pit ◽  
Open Pit Mining ◽  
Joint Work ◽  
Coal Seams ◽  
Advantages And Disadvantages ◽  
Technical Solutions ◽  
Horizontal Layers

Open pit coal mining enterprises are constantly faced with the task of increasing the economic efficiency of mining, reducing coal losses and increasing profitability. One of the ways to increase the efficiency of open-pit mining is the improvement of the technology for developing coal-bearing zones of quarry fields in sloped and steeply complex (hard-structured) deposits. Currently, projects for promising deposits have been completed, and a number of existing sections are developing coal-bearing zones across their entire width in horizontal layers. Extraction and loading equipment for stripping and winning operations in this area is characterized by a wide variety: rope shovels (also called power or stripping shovels), backhoes and hydraulic shovels or their joint work. When using only rope shovels or only backhoes, they produce an excavation of both interbeds and coal seams. When they work together in the coal-bearing zone, the rope shovel makes a stripping of the interbeds, and the backhoe – an extraction of the coal seams. However, such technical solutions are not sufficiently substantiated. The fact is that rope shovels and backhoe shovels have their advantages and disadvantages in operation.

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