Miljan Gomilanović

Mining and Metallurgy Institute Bor · Coal engineering department

Design and optimizing the drilling and blasting parameters, should fill the requirements for the capacity, fragmentation size, and technical characteristics of loading and transport equipment, and enable a safe work at the open pit. Besides mentioned, it also achieves the minimal impact on the environment of the open pit and decreases the negative...

This study presents a unique model for assessing the dependability of continuous parts of combined systems in open-pit mining through the application of fuzzy logic. Continuous sub-systems as part of the combined system of coal exploitation in surface mines have the basic function of ensuring safe operation, high capacity with high reliability and...

This paper presents a model for determining the availability of continuous systems at open pits using the neuro-fuzzy system. The concept of availability is divided into partial indicators (synthetic indicators and sub-indicators). The presented model in relation to already existing models for determining availability uses a combination of the adva...

This paper presents a model for determining the availability of continuous systems at open pits using the neuro-fuzzy system. The concept of availability is divided into partial indicators (synthetic indicators and sub-indicators). The presented model in relation to already existing models for determining availability uses a combination of the adva...

This paper presents a model for determining the availability of continuous systems at open pits using the neuro-fuzzy system. The concept of availability is divided into partial indicators (syn-thetic indicators and sub-indicators). The presented model in relation to already existing models for determining availability uses a combination of the adv...

The Open Pit South Mining District is a unique unit that operates within the company Copper Mine Majdanpek, which is a part of the company Serbia Zijin Copper doo (former Mining and Smelting Basin Bor Group). The capacity of the Open Pit is 9.9 million tons per year and is of a great importance for copper production in the company system. As a resu...

Abstract: This paper presents a model for determining fuzzy evaluations of partial indicators of the availability of continuous systems at coal open pits using a neuro-fuzzy inference system. The system itself is a combination of fuzzy logic and artificial neural networks. The system availability is divided into partial indicators. By combining the...

This paper presents an analysis of selection the optimal model for transportation of by-products from the Thermal Power Plant Pljevlja to the Maljevac landfill. The analysis was done for two types of transport, truck transport and transport with belt conveyors. The paper presents the results of analysis the technological process of transport the by...

The open pit mining takes place in a heterogeneous working environment with known parameters with greater or lesser reliability. This is the main reason why the unexpected processes can occur at the open pts that endanger the safety of exploitation, people and machinery. Due to this reason, the interventions at the surface facilities in cases of oc...

This work presents an analysis of selection the optimal truck model for transport of ash, gypsum and slag from the Thermal Power Plant Pljevlja to the Maljevac landfill. The capacity of trucks for transport of byproducts was calculated applying the Talpak program package for different types of trucks, taking into account different engagement times....

Functioning of the drainage system has a great importance for the efficient and continuous exploitation at the open pits. Modern exploitation is realized at the open pits with increasing depth and surface, so it is of a crucial importance to accept as much water as possible before it enters the open pit contour. By this way, the loading of a draina...

Mining mechanization works in very difficult working conditions, where high productivity, availability, reliability and safety are constantly expected from this mechanization, as the carrier of production. The availability of mining mechanization is a key factor for stable exploitation, and this feature of the equipment is the subject of a long-ter...

This paper presents an analytical model for determining the availability of a continuous coal system at the open pit Drmno. A continuous coal-fired system is a technical system with sequential connection of elements in terms of reliability and functioning. Realization of the safe production is the main goal of continuous systems at the open pits. I...

During the geomechanical verification the stability of mining facilities, it is necessary to correctly select the calculated values of the rock material properties from an engineering point of view. In order to complete the previous steps, the starting point is data collection from the open pit. This characterizes the demanding work that is put bef...

This work presents a model for determining the availability of continuous systems at open pits by applying fuzzy logic and fuzzy inference systems. The applied model was formed by the synthesis of independent partial indicators of availability. The model is based on an expert system for assessing the availability of continuous mining systems. The a...

This work deals with a model development to predict the availability of continuous systems at the open pits using the artificial neural networks. The main idea of this work is to improve the analytical approach with initial assumption that the time length distributions of a faulty system have an exponential distribution. Data related to the I ECC(e...

Application of the Soft computing in the mining industry is of great importance. This paper shows only a part of the published scientific and professional articles on application the Soft Computing methods in our country and in the world in the field of mining. Originally, the Soft Computing methods arose from the need to analyze the complex proces...

The basis of emission assessment at the Open Pit "Milojević Brdo" is to define the dust distribution depending on the wind influence and dust emitters. This paper presents the data for equipment engaged at the open pit. Through an analytical approach, the total emission of dust emitted by the mining equipment and aeolian erosion in the area of the...

This work presents the principle of optimal model truck selection for waste transport at the open pit Gacko. The analysis was performed for three types of trucks: Belaz 7555, Belaz 75491 and Belaz 75135. Selection of the optimal model was done using the AHP method from the group of multicriteria decision-making methods. The work presents the analys...

The Additional Mining Design for coal exploitation at the open pit "Potrlica" - Pljevlja for the period 2020 - 2025, has defined the exploitation system important parameters and development of the open pit. Among others, for the first half of 2022, it is planned to move the crushing plant to a new position, in a direction of the excavation front. G...

Rotary excavators as the basic machines at the open pits of lignite operate in very difficult working conditions, where they are constantly expected to be highly productive, reliable, available and safe as the production carriers. Determining the availability as well as the duration and number of failures using the analytical methods allows to anal...

This work presents the application of the COMFAR III software package in development a feasibility study of investment. The application of this program enables an efficient analysis of investment justification and numerous variations of both input and graphic and alphanumeric output data. The methodological basis of economic analysis, used in this...

This paper presents the methodology of determining and analysis results of the limit production capacity of coal in the roof exploitation zone of the open pit Gacko-Central Field in a function of configuration and parameters of the combined system. The coal exploitation system at the open pit Gacko-Central Field mine is a system of exploitation...

In modern mining, the exploitation takes place under very difficult conditions. The reason for this is the unfavorable position of the deposits in the mass if as well as the weaker quality of mineral raw materials in the deposit. This problem exists at the open pit in Gacko. There are more and more cases of deposit occurrence with the complex geolo...

The lignite open pits are characterized by the large quantities of waste that need to be excavated and disposed. These technological processes require the engagement of high capacity equipment engaged in the landfills. In order to ensure required capacity and safe operation, it is necessary to engage appropriate auxiliary machinery with sufficient...

This paper presents the results of analysis and calculation the amount of coal losses in a function of selection level in the selective exploitation process of the roof coal series of the coal deposit Gacko. In line with the structural and qualitative characteristics of the Gacko coal deposit and technological characteristics of the coal mining sys...

This paper presents the calculation of safety factor and analysis of the constructive parameters of the landfill for the implemented and designed state of the works. The work environment has a complex structure of material in the floor and materials that are deposited, hydrogeological, engineering-geological and geomorphological conditions. In orde...

This paper presents the calculation of CO2 emission on the example of the CCS1 system at thewopen pit Potrlica in Pljevlja. Calculation was made before and after reconfiguration of the CCS system.It can be seen from calculation that the CO2 emission, caused by the CCS system operation, have beenreduced by about 3.5 times compared to the pre-reconfi...

This paper gives the selection of the optimal model of trucks for transport of coal, and seam waste at the OP Gacko in terms of selective exploitation. Mining of coal and seam waste is carried out in two exploitation zones, the central and roof zone, and the coal and waste transport and disposal is carried out to the different crushing plants and l...

Minor or greater deviations from the designed technological solutions are mainly due to two rea-sons: deviation from the design solutions in the previous period as a consequence of organizationalfactors, and as a consequence of changed parameters of the working environment in relation to thoseused in the planning and design phase. Ajusting to the n...

Protection of the open pit against water is very important, especially if the open pit is located in the complex conditions regarding protection of the open pit against water. To reduce the investments, it is proposed to define the protection system of the open pit against water for a longer period. In the specific case, the technological system of...