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This article presents the properties of a Ti coating (angle of grain growth, thickness of the deposited layer, adhesion, and roughness of the deposited layer) deposited on the inner surface of a steel tube. The Ti coating was deposited using the EB PVD (electron beam physical vapor deposition) method. The areas in which the measurements were carried out are defined by the height of the measured area under the target (from 305 to 425 mm) and the radius of the tube (from 100 to 140 mm). The measurements showed that the angle of grain growth is in an interval from 40 to 61°. The results of the statistical analysis demonstrate that the height of the measured area and the tube radius significantly impact the angle of grain growth and adhesion. On the other hand, the impact of the height of the measured area and the tube radius on the roughness of the applied coating was not confirmed. [ABSTRACT FROM AUTHOR]

Risk management facilitates risk identification, evaluation, control, and by means of appropriate set of measures, risk reduction or complete elimination. Therefore, the risk management becomes a strategic factor for a company’s success. Properly implemented risk management system does not represent a tool to avoid the risk; it is used to understand the risk and provide the bases for strategic decision-making.

This article describes a method of obtaining data from the examination of an impact process by capturing it with a TroubleShooter TSHRMM high-speed camera and evaluating the results of a video analysis of the impact of the load on a conveyor belt using MiDAS Player version 5.0.0.3. By using the conveyor belt deflection obtained from the video analysis and the visual damage to the conveyor belt from an impactor, damage classification models were created. This model was created for two groups of experiments that took place without the presence of a support system and with the presence of a support system, respectively. The experimental research included monitoring the deflection of the conveyor belt and the degree of damage to the conveyor belt from the selected parameters. [ABSTRACT FROM AUTHOR]

As the standard of living rises, the energy consumption of electricity and fuels increases not only in Slovakia but across the European Union. Future energy demand will be based on population growth, and it is the key factor of economic and social development of the society, with an emphasis being put on improving the quality of life. This study focused on the development of the final energy consumption (FEC) of individual fuels, electricity and heat, including their shares in the final energy consumption in selected economy sectors in Slovakia. Time-series analysis methods were applied to predict energy consumption for the next three years. Although we have witnessed a decrease in the total energy consumption in individual sectors in Slovakia in the years 2005–2015, energy consumption generally exhibits an increasing trend. In all of the analysed sectors, the development of final consumption of energy from renewable energy sources (RESs) and wastes exhibited a rising trend; nevertheless, the results of our evaluation indicated that Slovakia still has some major shortcomings as to the utilisation of RESs. [ABSTRACT FROM AUTHOR]

During the operation, conveyor belts are exposed to various processes that cause the wear thereof and shorten their quality and service life. The wear is most frequently induced by inappropriate structural parameters of the conveyor belt itself or of the belt conveyor. The wear is also affected by the transported material and inappropriate operating conditions. The factors affecting the conveyor belt quality and service life can also be identified using the Design of Experiment (DOE method). This method was also applied within the analysis of the certain parameters for the purpose of identifying the relative amount of the energy that a conveyor belt is able to absorb at the moment of material's impact onto the belt. The most critical site where the belt absorbs the largest energy amount is the chute. The present article deals with the preparation and evaluation of the experiment, applying the DOE method, when studying the effects of the selected parameters on the amount of the energy absorbed by conveyor belts at the chute. [ABSTRACT FROM AUTHOR]

Material transport by belt conveyors is an important element not only at mining and processing of mineral raw materials, but it is also irretrievable at waste processing, in machinery industry, metallurgical industry, construction, agriculture, etc. The conveyor belt is an important part of belt conveyors. In practice, the conveyor belt is subject to the influence of much mechanical stress, which lowers its quality and operational life. This influence invokes the process of the wearing and deterioration of the conveyor belt. Because the damage of the conveyor belt has farreaching consequences for its user, the issue of monitoring of the quality of conveyor belts, or the assessment of their damage is very topical. The article presents partial results of the experimental research at the Logistics Institute of the Faculty of Mining, Ecology, Process Control and Geotechnology at the Technical University in Kosice. The main goal of the research is to determine the influence of selected parameters (storage of conveyor belts, drop height of the material, type of transported material) on the quality and damage of the rubber-textile conveyor belt. A model was created by means of logistic regression for the assessment and analysis of the experimental tests and severity of the damage of conveyor belts. [ABSTRACT FROM AUTHOR]

One of the possibilities how to maintain the competitiveness of mining and processing undertakings on the minerals market is to increase the efficiency of the minerals recovery and processing process with the focus on the operating costs reduction. Intra-plant transportation plays an important role in this process. Optimization of minerals transportation and implementation of the logistic approach can result in significant saving of operating costs pertaining to the recovered number of valuable mineral. The article presents a logistic approach to the belt conveyor system designing, proposes possible modifications of selected parameters of belt conveyors in a particular processing plant, and monitors their impact on the improvement of operating, but mainly economic parameters of transportation of clay and limestone, while maintaining the required transportation capacity. [ABSTRACT FROM AUTHOR]

Measurements of the dynamic load of conveyor belts of identical strengths were used to evaluate and compare the data for belts with and without a support system. The goal was to identify the effects of the support system in terms of a relative amount of impact energy absorbed by a conveyor belt. A dynamic model was designed based on selected parameters of the impact process. Damage to conveyor belts, caused by the absorption of impact energy, was evaluated using the applied methods of mathematical statistics. [ABSTRACT FROM AUTHOR]