Performance Analysis of the Explosion Applications Realized with Electronic Ignition System at Different Times in the Same Field

In the modern world, the mining and construction sectors are developing rapidly and the need for engineering structures and substructures is increasing day by day. The quarries have been brought to an important place in the world within the scope of mining activities while the products needed by these structures are obtained especially from the quarries. Quarries are generally operated by forming benches according to the open pit mining method. In this production method, considering the state of geological structures in the field, the rocks (limestone, basalt, etc.) loosened by drilling and blasting applications are subjected to size reduction, loading and transportation processes. Therefore, the main objective of the present study is to compare the performance of blasting applications of electronic ignition system together with developing a model that can analyze the performance of ignition systems. In the evaluation of blasting performance, issues such as bulk particle size distribution, crushing and grinding processes, environmental effects, increase in production amount after blasting and cost of blasting were taken into consideratio

Estimation of Calorific Value of Lignite Field in Kütahya-Gürağaç (Turkey) by means of Artificial Neural Network

Artificial neural networks are generally information processing systems that mimic the working principles of the human brain or central nervous system. Artificial neural networks are a method that gives successful results in solving many daily life problems such as classification, modeling and prediction. Artificial neural networks accomplish this by adjusting the connection weights between neurons. It can solve prediction and classification problems with back propagation algorithm, which is widely used in artificial neural networks with multilayer perceptron. In this study, unknown calorific values were tried to be estimated by using the analysis values (depth, ash, moisture, sulfur, calorific value) of the drillings realized in the Kütahya -Gürağaç lignite field. An artificial neural network was created for this purpose. First, 8 neurons were used in the hidden layer of the network, and 10 neurons were used secondarily. In the artificial neural network, the learning function is sigma, the learning rate is 95%, and the network is trained using Levenberg-Marquardt as the training algorithm. The network with 10 neurons converged at the desired margin of error (1e-07) and was completed after 271 iterations. The relationship between actual calorie values and predicted calorie values with network training reached a high ratio of R2=0.97. After the training of the network is completed, the network is simulated for the estimation of seams with unknown caloric values. As a result, caloric values were determined with an average of 97% confidence interval for the unknown coal seams of the field

Mapping of Noise Propagation in Quarries for Environmental Perspective

In this study noise measurements were made in a quarry belonging to a private, company located in the boundaries of Karaomerler village, Konya (Turkey). Noise levels were measured at 42 points, in the operation field and equivalent noise levels were determined and the results were mapped using NetCad program. With the help of the obtained noise maps, it is recommended to take preventive measures, where necessary. Proper reading of maps is crucial for effective and sufficient measures in terms of occupational health and safety measures have to be taken

Determination of Impact of Mining Operations on Accidentsand Diseasesat Work in Turkey

Today, dueto the rapidly developing technology, new production techniques are used to utilize natural resources more efficiently. The rapid change and competition conditions brought about by technology cause occupational accidents as a result of some deficiencies and negative situationsin working life. In this study, the situation of mining activities in 5 different classes within occupational accidents was evaluated by using the statistics of Social Security Institution of Turkey (SSI)between the years 2010-2019. In addition, the current situation of mining activities in terms of occupational accidents and occupational diseases in other sectors was analyzed by examining the data of 5 other sectors together.The results ofpresent studyreveal that occupational accidents, related deathsand workday losses are high in the mining sectoramong other sectors

Comparison of Present Coal and Renewable Energy Sources in Turkey

In parallel with the technological development, industrialization and population increase in today's world, the demands of the countries for electricity has also started to increase considerably. In particular, the issues such as climate change and greenhouse gas emissions that create life-threatening hazards to the environment and human health; Coal and fossil fuels are often compared with renewable energy resources (geothermal, solar, wind, biomass, hydraulics, hydrogen, wave etc.). In this context, it is of paramount importance for Turkey providing approximately 41% of its electricity from coal to commission and to activate efficiently alternative energy sources, which are renewable in sustainable energy corridor of Turkey. In the present work, information about coal potential, which plays a key role in Turkey's electricity production, and given this potential in terms of future energy policies are compared with renewable energy sources

Determination of Performance Analysis for an Underground Colliery Utilizing Mechanized Production System

Performance is one of the most important parameters for today’s business organizations. An organizationthat is low on performance, no matter how much high quality products they have, cannot take the share they desirefrom the market. It is the inevitable result for organizations with low performances to lose money and get closed down.Nowadays performance is measured in many ways. In this work; the production performance of Ömerler Colliery,which is the only government controlled mechanized lignite mine authorized under the Western Lignite Corporation(WLC) and the factors that caused performance decrease has been determined. In order to gain performancemeasurements; effectiveness, efficiency and productivity criteria have been used and performance indexes have beenacquired. As the result of the performance analysis, it is understood that there has been malfunctions with; in order; beltconveyor, chain conveyor, shearer and fortification that has been effective in the decrease of performance. Performanceindexes, which are barely derived from the multiplication of performance parameters, are examined and it is deductedthat the highest relation is achieved for the efficiency parameter with a correlation constant (r) of 0.9489 and a certaintyconstant (R²) of 0.9005 while the lowest relation is obtained for the efficiency parameter with a correlation constant (r)of 0.4621 and certainty constant (R²) 0.2135. With this acquired result it has been determined that by only measuringeffectiveness, performance detection cannot be made

Work Accidents and Coal Mining in Turkey

In this study, an up-to-date evaluation of work accidents and occupational diseases in hard coal and lignite mining in Turkey has been made using the Social Security Institution (SSI) of Turkey statistics between 2013-and 2020. For this purpose, the number of insured employees who had work accidents and occupational diseases, the number of insured people who lost their lives as a result of work accidents, and the total temporary incapacity for work (standing + inpatient) were examined. Although the number of people who had work accidents, the number of deaths after work accidents, and the total duration of temporary incapacity in the lignite mining field of activity are higher than in the field of activity in hard coal mining, it is seen that the number of occupational diseases is lowe

Modeling and Production of Solid Model of South Panel, Tuncbilek Open Pit by 3D Printer

Three-dimensional printers have begun to be widely used in machinery, architecture, construction, education, mould design, medical and dental fields to produce visual and functional parts. With this technology, manufacturing is realized jointly layer by layer, and there is no restriction in terms of part shape and detailing. Objects are scanned with optical scanning devices at first by means of reverse engineering and then converted to the computer aided design (CAD) data by making necessary arrangements on the scanning data. In this study, the CAD data of the open pit area of South Panel, Tuncbilek, Turkish Coal Board was formed by mapping and reverse engineering software of topographical points, and then colored solid modeling was formed with 3D printers

Physical Risks in terms of Occupational Health and Safety in Underground Coal Mines

Mining is one of the oldest professions in history. Along with the development of human life, mines also give direction to civilization and the economy. Mining activities carry various risks in terms of occupational health and safety (OHS). These risks can be examined under the main headings of work accidents and occupational diseases. As a result,thousands of workers face illness and death every year. Additionally, economic losses occur as a result of production interruption and stopping. Despite all the efforts to reduce mining accidents, statistics show that underground mining is one of the riskiest among all working industries. It is seen that the physical risk factors encountered in the mining sectorline are remarkable in terms of risk factors. Physical risk factors that may be encountered in mines are dust, noise, vibration, lighting problems, and thermal conditions. It is essential to take measures to assess these risks and ensure the comfort of employees where each physical risk factor needs to be examined separately. In this study, physical risks beingfrequently encountered in underground coal mines are taken into account with recommendations for the risks