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Tytuł:
Structures and opportunities to supply the telecommunication systems in underground mines
Struktury i możliwości zasilania systemów telekomunikacyjnych w kopalniach podziemnych
Autorzy:
Wojaczek, A.
Powiązania:
https://bibliotekanauki.pl/articles/220052.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
zasilanie bezprzerwowe
kopalniane systemy bezpieczeństwa
uninterrupted power supply
mining safety systems
Opis:
Telecommunication systems in underground mines require reliable power supply both of stationary and underground devices. Special problems connected with power supply occur in a case when subscriber devices are located in explosion hazard areas. The paper presents the basic problems connected with power supply of stationary elements of safety systems as well as subscriber devices located in explosion hazard areas that are significantly distant from stationary elements. Acceptable methods of supplying the subscribers devices under technical environment conditions of mine undergrounds have been determined.
Systemy telekomunikacyjne w kopalniach podziemnych wymagają niezawodnego zasilania energią elektryczną zarówno urządzeń stacyjnych jak i dołowych. Szczególne problemy związane z zasilaniem występują w przypadku gdy urządzenia abonenckie znajdują się w strefach zagrożonych wybuchem. W artykule przedstawiono zasadnicze problemy związane z zasilaniem energią elektryczną elementów stacyjnych systemów bezpieczeństwa oraz urządzeń abonenckich znajdujących się w strefach zagrożonych znacznie oddalonych od elementów stacyjnych. Określono możliwe sposoby zasilania urządzeń abonenckich w technicznych warunkach środowiskowych podziemi kopalń.
Źródło:
Archives of Mining Sciences; 2016, 61, 2; 323-334
0860-7001
Pojawia się w:
Archives of Mining Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A mine as an object of crisis management
Autorzy:
Taraszkiewicz-Łyda, M.
Powiązania:
https://bibliotekanauki.pl/articles/347146.pdf
Data publikacji:
2017
Wydawca:
Akademia Wojsk Lądowych imienia generała Tadeusza Kościuszki
Tematy:
crisis management
safety of mining works
mining
risk assessment
Opis:
The article deals with problems connected to crisis management regarding mining companies. In accordance with adequate decrees, mining companies, including mining plants, belong to objects towards which crisis management rules should be applied. In mining plants, apart from underground threats, ground threats that lead to a crisis situation might also emerge on the entrepreneur’s territory. By this reason, they should be guided by the principles for the preparation for their special protection through conceptual, planning, organizational, logistic, technical, training and control activities taken to develop, agree and update specific protection plans, implement projects under the alert and notification system, and exchange information on threats. A summary of possible hazards to a particular site and a separate mining plant facility, assessment and risk control are essential to develop a safety concept and prevent risks. There is a need of continual analyses of potential threats and actions taken to eliminate them, and if they occur the rapid response of individual services and appropriate integrated rescue operations.
Źródło:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki; 2017, 3; 44-53
1731-8157
Pojawia się w:
Zeszyty Naukowe / Wyższa Szkoła Oficerska Wojsk Lądowych im. gen. T. Kościuszki
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
70 years of the Faculty of Mining, Safety Engineering, and Industrial Automation of the Silesian University of Technology in Gliwice, Poland
70 lat Wydziału Górnictwa, Inżynierii Bezpieczeństwa i Automatyki Przemysłowej Politechniki Śląskiej w Gliwicach
Autorzy:
Plewa, Franciszek
Jonczy, Iwona
Filipowicz, Krzysztof
Powiązania:
https://bibliotekanauki.pl/articles/2106551.pdf
Data publikacji:
2020
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
Faculty of Mining, Safety Engineering and Industrial Automation, Gliwice
education
history
Wydział Górnictwa, Inżynierii Bezpieczeństwa i Automatyki Przemysłowej, Gliwice
szkolnictwo wyższe
historia
Opis:
On July 12th, 1950, in accordance with the Regulation of the Minister of Higher Education, the Faculty of Mining was established at the Silesian University of Technology in Gliwice. Defining its tasks and curricula, recruiting staff, attracting students, and work related to the preparation of new rooms and expansion of infrastructure were the first challenges for the newly created Faculty. Over time, the name of the Faculty has also evolved, and the Faculty of Mining, Safety Engineering and Industrial Automation has been in use since 2019.
12 lipca 1950 roku, zgodnie z Rozporządzeniem Ministra Szkół Wyższych, na Politechnice Śląskiej w Gliwicach utworzono Wydział Górniczy. Określenie zadań i programów nauczania, skompletowanie kadry naukowej, pozyskanie studentów oraz prace związane z przygotowaniem nowych pomieszczeń i rozbudową infrastruktury, stanowiły pierwsze wyzwania dla nowo utworzonego wydziału. W miarę upływu czasu ewoluowała również nazwa wydziału – od 2019 roku funkcjonuje Wydział Górnictwa, Inżynierii Bezpieczeństwa i Automatyki Przemysłowej.
Źródło:
Mining – Informatics, Automation and Electrical Engineering; 2020, 58, 1; 7-12
2450-7326
2449-6421
Pojawia się w:
Mining – Informatics, Automation and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Supporting a Mine Working with a Shelter in Various Mining and Geological Conditions
Wspomaganie kopalni pracującej ze schronem w różnych warunkach górniczych i geologicznych
Autorzy:
Krukovskyi, Oleksandr
Krukovska, Viktoriia
Powiązania:
https://bibliotekanauki.pl/articles/2200989.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
mine workings stability
mining safety
numerical simulation
rock deformation
shelters
supporting of mine workings
stateczność wyrobisk górniczych
bezpieczeństwo górnicze
symulacje numeryczne
deformacje skał
osłony
obudowy wyrobisk górniczych
Opis:
Shelters are used to protect miners from exposure to harmful gases and for the work of rescuers. Such shelters are built in a niche adjacent to the mine working. The purpose of this work is a numerical study of the stress state of a coal-rock massif with a mine working and a shelter, their stability in various mining and geological conditions and with various supporting schemes. Numerical simulation of the stress state of a coal-rock massif with a mine working and a shelter was performed; their stability was studied in various mining and geological conditions and with various supporting schemes. It is shown that, over time, near-contour rocks are unloaded from rock pressure, and an area of increased difference of the stress tensor compo-nents expands around the mine working and the shelter. This leads to cracks formation of varying degrees of intensity. When the mine working with the shelter is driven at a shallow depth in hard rocks, the basic scheme, which consists mainly of metal frames and a reinforced concrete barrier, is sufficient for their supporting. If the host rocks are weaker, the stability of the mine working and the shelter is broken and it is necessary to strengthen their supporting with rock bolts. In the bolted area, the rocks are in triaxial compression conditions, a rock-bolts arch is formed above the mine working and the shelter, which pre-vents the displacement of the roof rocks into the mine working and increases its stability. With an increase in the depth of min-ing operations, the stability of the mine working decreases; the inelastic deformation zone in the mine walls grows; the load on the support increases. For the rock-bolts arch formed in the mine roof, supports are required in the walls of the mine working and the shelter. For this purpose, side rock bolts are installed. The use of an appropriate supporting scheme leads to a de-crease of the area of inelastic deformation zone by 2.5 times and the area of the zone unloaded from rock pressure by 2.6 times. Thus, such schemes for supporting the mine working and the shelter are selected, which ensure their stability in the considered mining and geological conditions.
Schrony służą do ochrony górników przed narażeniem na szkodliwe gazy oraz do pracy ratowników. Schrony takie budowane są w niszy przylegającej do wyrobiska kopalnianego. Celem pracy jest numeryczne badanie stanu naprężeń masywu węglowo-skalnego z wyrobiskiem i osłoną, jego stateczności w rożnych warunkach górniczo-geologicznych i przy rożnych układach obudowy. Wykonano symulację numeryczną stanu naprężeń masywu węglowo-skalnego z wyrobiskiem i schronem. Badano ich stabilność w rożnych warunkach górniczych i geologicznych oraz przy rożnych schematach podparcia. Pokazano, że w miarę upływu czasu skały przykonturowe odciążają się od naporu skał, a wokół wyrobiska i schronu rozszerza się obszar zwiększonej różnicy składowych tensora naprężeń. Prowadzi to do powstawania pęknięć o rożnym stopniu intensywności. Gdy kopalnia współpracująca ze schronem jest prowadzona na płytkiej głębokości w twardych skałach, do ich podparcia wystarcza podstawowy schemat, składający się głownie z metalowych ram i bariery żelbetowej. Jeżeli skały macierzyste są słabsze, stabilność wyrobiska kopalnianego i osłony jest zerwana i konieczne jest wzmocnienie ich podparcia kotwami skalnymi. W rejonie kotwionym skały znajdują się w stanie trójosiowego ściskania, nad wyrobiskiem i schronem tworzy się łuk kotwowy, co zapobiega przemieszczaniu się skał stropowych do wyrobiska i zwiększa jego stateczność. Wraz ze wzrostem głębokości eksploatacji zmniejsza się stabilność wyrobiska górniczego, powiększa się strefa odkształceń niesprężystych w ścianach kopalni, obciążenie podpory wzrasta. Dla łuku kotwiowego formowanego w stropie kopalni wymagane są podpory w ścianach wyrobiska i schronu. W tym celu montowane są boczne kotwy skalne. Zastosowanie odpowiedniego schematu podparcia prowadzi do 2,5-krotnego zmniejszenia powierzchni strefy odkształceń niesprężystych oraz 2,6-krotnej powierzchni strefy odciążonej od parcia skał. W związku z tym dobierane są takie schematy obudowy wyrobiska i osłony, które zapewniają ich stabilność w rozważanych warunkach górniczo-geologicznych.
Źródło:
Inżynieria Mineralna; 2023, 1; 45--52
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Criteria for assessing the longevity of hard coal mines
Autorzy:
Frejowski, Aleksander
Kabiesz, Józef
Powiązania:
https://bibliotekanauki.pl/articles/1853834.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
kopalnia
górnictwo
BHP w górnictwie
longevity of coal mines
safety in mining operations
MICMAC method
Opis:
The article presents the methodology for assessing the longevity of hard coal mines. Based on inter-national experts’ assessments, important criteria for determining mine viability have been presented. The results refer to Polish coal mines in the area of the Upper Silesian Coal Basin, however, the methodology itself can be applied to other geological and mining conditions of mines elsewhere. The results of structural analyses carried out using the MICMAC method for factors related to the mining geo-environment that may determine the longevity of individual hard coal mines are presented. The analyses were based on the results of expert surveys carried out using the Delphi method. The experts participating in the survey came from various countries and had extensive experience related to work or cooperation with hard coal mining. The criterion factors examined were assigned to two systems (groups) for which structural analysis was performed. The first group includes factors related to the level of exploitation hampering, while the second group includes factors related to hard coal quality and the availability of resources. As a result of the analyses the following were determined: the key factors which have the most significant influence on the system, result and goal factors, factors affecting the system and autonomous factors which have little effect on the system. The obtained results allowed to determine which factors should be taken into account in the process of determining the longevity of a hard coal mine.
Źródło:
Archives of Mining Sciences; 2020, 65, 3; 433-452
0860-7001
Pojawia się w:
Archives of Mining Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Occupational accidents in artisanal mining in Katanga, D.R.C.
Autorzy:
Elenge, Myriam
Leveque, Alain
De Brouwer, Christophe
Powiązania:
https://bibliotekanauki.pl/articles/2179780.pdf
Data publikacji:
2013-04-01
Wydawca:
Instytut Medycyny Pracy im. prof. dra Jerzego Nofera w Łodzi
Tematy:
accident
artisanal mining
safety
Katanga
Opis:
Introduction: This study focuses on accidents in artisanal mining, to support policies improving miners' employability. Materials and Methods: Based on a questionnaire administered in November 2009 to a sample of 180 miners from the artisanal mining of LUPOTO, in the Province of Katanga, we explored significant trends between the accidents and their consequences and behavioral or sociological variables. Results: During the 12 months preceding the study, 392 accidents occurred, affecting 72.2% of miners. Tools handling represents 51.5%, of the accidents' causes, followed by handling heavy loads (32.9%). Factors such as age, seniority or apprenticeship did not generate significant differences. Contusions were the most common injuries (50.2%), followed by wounds (44.4%). These injuries were located in upper limbs (50.5%) and in lower limbs (29.3%). 80.5% of miners were cared for by their colleagues and 50% of them could not work for more than 3 days. Physical sequelae were reported by 19% of the injured miners. Discussion: Many surveys related to accidents in the area of artisanal mining report such high frequency. The unsuitability of tools to jobs to be done is usually raised as one of the major causes of accidents. The lack of differentiation of the tasks carried out in relation to age is another factor explaining the lack of protective effect of seniority as it minimizes the contribution of experience in the worker's safety. The apprenticeship reported is inadequate; it is rather a learning by doing than anything else. That is why it lacks protective effect. Low income combined with precariousness of artisanal mining are likely to explain the low level of work stoppages. Conclusion: Tools improvement associated with adequate training seem to be the basis of accident prevention. Availability of suitable medical care should improve artisanal miners' recovery after accidents.
Źródło:
International Journal of Occupational Medicine and Environmental Health; 2013, 26, 2; 265-274
1232-1087
1896-494X
Pojawia się w:
International Journal of Occupational Medicine and Environmental Health
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Safety Assessment of a Mineworking in Order to Use Its Cultural and Educational Potential and Ensure Environmental Sustainability
Autorzy:
Végsöová, Oľga
Straka, Martin
Kyšeľa, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/1811549.pdf
Data publikacji:
2020
Wydawca:
Politechnika Koszalińska. Wydawnictwo Uczelniane
Tematy:
mining
safety
environment
cultural heritage
Opis:
This paper addresses the protection of the environment and provides a design for the use of the deposit after the cessation of mining in the Novoveská Huta region. The area of interest of this case study describes the practical transformation of a functioning mining operation into a mining museum in order to reduce the pressures on the environment after mining. The resulting model of the functioning of the mining museum also deals in detail with the safety of a mining operation which is no longer used for mining, taking into account its further use. The article describes the proposed 1700-metre route which visitors will pass along, and also gives a detailed description of the proposed measures necessary for safety and long-term sustainable operation. The aim was to design a use of the mining space, that would offer visitors the opportunity to see the handling space and mining methods of the deposit. An interesting element will also be the possibility of inspecting the explosives store, wall linings, steel and wooden reinforcements. The tour will also include a demonstration of storage facilities as well as a Karlik's wheel mining equipment with a rope loop. The open-air museum also offers the opportunity to get acquainted with transport around the entire deposit under strict safety conditions. It is assumed that devices such as a mining telephone or a siren placed on the walls of the tunnel will also arouse interest. An important element of the entire tour would also be a constant reminder of the safety rules during the tour. The impacts of this solution on the environment are very acceptable and incomparably more beneficial than in the case of the termination of mining and subsequent non-use of the Novoveská Huta deposit.
Źródło:
Rocznik Ochrona Środowiska; 2020, Tom 22, cz. 1; 24-39
1506-218X
Pojawia się w:
Rocznik Ochrona Środowiska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Evaluation and risk factors of roadheaders in coal mines
Autorzy:
Škvareková, Erika
Tomašková, Marianna
Sabadka, Dušan
Šofranko, Marian
Zelenák, Štefan
Powiązania:
https://bibliotekanauki.pl/articles/1836626.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
roadheader for coal mining
risk
safety
Opis:
During mechanical disintegration of the rock, for mining works are used also roadheaders. Roadheaders, in comparison with disintegration by blasting operations can without interuption, and works changes with one machine, dissolve, load and at the same time mine disintegrated rock. These electro-hydraulic machines cause no harmful vibrations and are ideal for mining coal and other soft rock minerals. Mechanical mining is safer, protects the rock environment, allows mining without further breaks, allows you to achieve a higher level of daily progress and also saves work. The analysis of occupational accidents in the Slovak Republic shows that it is necessary require from employees increased attention in any work activity and attention in the work performed (mainly work in handling material, objects and burdens). In the underground coal mines further attention needs to be paid to securing hazardous areas, it is necessary to proceed in such a way as to prevent as much as possible the fall of rock as much as possible Underground roads require modification and equipment in accordance with regulations. It is necessary to follow health and safety instructions mentioned in operating and maintenance documentation. Correction of some deficiencies is ordered by a decision of the Mining Office. Most measures are aimed at adhering to technological discipline, to complement operating documentation, to prevent rock falls, to equip some machinery and transport equipment, to work procedures for handling loads, to maintenance of mining works and for explosion and anti-vapor prevention. In this article, we assess the safety risks of two roadheaders for coal mining works in Slovak conditions. Pairwise comparisons of the criteria of selected roadheaders were used to determine the safety risks, as well as taking into account the risks and safety measures according to the mixed methods following to the standard.
Źródło:
Management Systems in Production Engineering; 2021, 3 (29); 242-250
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Impact of suspension and route stabilization on dynamic parameters of self-driven mine suspended monorails
Autorzy:
Szewerda, Kamil
Tokarczyk, Jarosław
Świder, Jerzy
Grodzicka, Aneta
Powiązania:
https://bibliotekanauki.pl/articles/2200926.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
coal mining
safety
suspended monorails
transport
numerical simulations
Opis:
Impact of the method of suspension and route stabilization of suspended monorail on forces loading the roadway roof support system is presented. This is important in the context of possible increasing the speed of monorails during personnel movement. Nature of load and displacement of the route, as well as deceleration of the transport set, with a dynamic excitation - an emergency braking of the transport set, are presented. The results are presented for seven configurations of slings and lashings stabilizing the route. The Head Injury Criterion (HIC), recorded using the Articulated Total Body (HYBRID III) model, during the impact of operator's cabin against an obstacle, is presented in the further part of the article. Analyzes are aimed at developing the guidelines to ensure safety of mining personnel (without exceeding the accepted overloads) and mining infrastructure (without exceeding the maximum accepted load of the roadway support) during operation of the suspended monorail at higher speed. Analyzes are the result of the authors numerical simulations.
Źródło:
Eksploatacja i Niezawodność; 2022, 24, 4; 617--628
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors of work environment hazardous for health in opinions of employees working underground in the ‘Bogdanka’ coal mine
Autorzy:
Strzemecka, J.
Goździewska, M.
Skrodziuk, J.
Galińska, E.M.
Lachowski, S.
Powiązania:
https://bibliotekanauki.pl/articles/2085016.pdf
Data publikacji:
2019
Wydawca:
Instytut Medycyny Wsi
Tematy:
health hazards
work in mining
OSH
work safety
Opis:
Introduction. Employees performing work underground in coal mines are exposed to the effect of many hazardous factors in their work environment which negatively affect their health. Objective. The objective of the study was to recognize the opinions of employes working underground in one of the coal mines concerning the occurrence of factors hazardous for health in their work environment. Materials and method. The study was conducted in a group of 700 persons working underground in the ‘Bogdanka’ coal mine in Łęczna (Eastern Poland). The study was carried out using a questionnaire. The results were statistically analyzed using software STATISTICA v. 7.1. Results. The vast majority of respondents (approximately 80%) reported that noise and dustiness at their workplace create risk for their health. More than a half of them mentioned that the microclimate in the mine threatens their health (high humidity and high temperature), and a half of respondents indicated vibration and poor lighting. The greatest differences of opinions concerning the effect of hazardous factors on health of persons employed in the mine were observed in the sub-groups distinguished according to the work position. Health risk at a workplace was most often identified by those employed as miners. Conclusions. Among actions reducing the negative effect of the work environment on health is the introduction of new, safer technologies of coal mining. Also, the human factor is very important for work safety in mining, including the proper preparation of employees who undertake work in a mine. It is recommended that new, more effective educational programmes are implemented in the area of Occupational Safety and Health (OSH) at workplaces.
Źródło:
Annals of Agricultural and Environmental Medicine; 2019, 26, 3; 409-414
1232-1966
Pojawia się w:
Annals of Agricultural and Environmental Medicine
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Exploring the context of maritime SAR missions using visual data mining techniques
Autorzy:
Sonninen, M.
Goerlandt, F.
Powiązania:
https://bibliotekanauki.pl/articles/135224.pdf
Data publikacji:
2015
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
visual data mining
multidimensional data
maritime search and rescue
recreational boating
boating safety
maritime safety
Opis:
The environmental conditions in the Gulf of Finland vary significantly in different locations. In addition, the gulf is a busy and important area for waterway traffic and international trade throughout the year. In summer, the area is ideal for recreational activities such as boating and other water-related activities. Water accidents occur due to different factors and under varying weather conditions. This paper introduces a visual data mining analysis applied to Search and Rescue (SAR) missions related to recreational boating. Starting from a SAR operations database, an integrated database was constructed by adding weather and wave data. The aim was to compare the different mission types as well as the activity of different SAR organisations during challenging wind and wave conditions. The investigation was performed using visual analysis techniques. The densest areas of challenging wind and wave conditions were found in the western and eastern parts of the gulf. Other investigated parameters were travelled distances and occurrence of the incidents during different times of day. A more detailed analysis was conducted for one dataset.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2015, 43 (115); 79-88
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Innovative mining machinery solutions developed at Department of Mining, Dressing, and Transport Machines, AGH University of Science and Technology
Innowacyjne rozwiązania maszyn górniczych opracowane w Katedrze Maszyn Górniczych, Przeróbczych i Transportowych Akademii Górniczo-Hutniczej
Autorzy:
Krauze, K.
Kotwica, K.
Powiązania:
https://bibliotekanauki.pl/articles/111225.pdf
Data publikacji:
2018
Wydawca:
Akademia Górniczo-Hutnicza im. Stanisława Staszica w Krakowie. Wydawnictwo AGH
Tematy:
innowacyjne rozwiązania
maszyny górnicze
urabianie
wydajność
bezpieczeństwo
innovative solutions
mining machines
hard rock mining
performance
safety
Opis:
The exploitation of mineral resources with underground mining methods is becoming more and more difficult due to the mining and geological conditions in which these resources are present. This is related to the depth of retention and thickness of the exploited deposits (seams), more cohesive and durable rocks, and climatic conditions. The excavation of access and preparatory roadways as well as exploitation under such conditions require specially designed and manufactured machines. In recent years in the Department of Mining, Dressing, and Transport Machine at AGH University of Science and Technology in Krakow, a number of innovative solutions of machines and devices have been developed that can be used to work under difficult mining and geological conditions. This article presents selected solutions of these machines and devices – a mining head for a roadheader with asymmetrical disc tools with a complex motion trajectory, a temporary, mechanized, and walking roadway support, a unique longwall complex with a single-cutting head shearer used for thin coal seam exploitation, and an innovative mining and hauling system for mechanical shaft drilling using a shaft shearer.
Eksploatacja surowców mineralnych metodami podziemnymi staje się coraz trudniejsza ze względu na warunki górniczo-geologiczne, w jakich te surowce zalegają. Wiąże się to z głębokością zalegania i miąższością eksploatowanych pokładów, trudniej urabialnymi skałami oraz warunkami klimatycznymi. Drążenie wyrobisk udostępniających i przygotowawczych, a także prowadzenie eksploatacji w takich warunkach wymaga specjalnie do tego opracowanych i wykonanych maszyn. W Katedrze Maszyn Górniczych, Przeróbczych i Transportowych AGH w Krakowie w ostatnich latach opracowano szereg innowacyjnych rozwiązań, które mogą być zastosowane do maszyn i urządzeń pracujących w ciężkich warunkach górniczo-geologicznych. W artykule przedstawiono wybrane rozwiązania: głowicę z narzędziami dyskowymi niesymetrycznymi o złożonej trajektorii ruchu dla kombajnów chodnikowych, tymczasową, zmechanizowaną i kroczącą obudowę chodnikową, unikalny kompleks ścianowy dla niskich pokładów z kombajnem węglowym jednoorganowym oraz innowacyjny układ urabiania i odstawy do mechanicznego drążenia szybów z wykorzystaniem kombajnów szybowych.
Źródło:
Mining – Informatics, Automation and Electrical Engineering; 2018, 56, 1; 39-52
2450-7326
2449-6421
Pojawia się w:
Mining – Informatics, Automation and Electrical Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Operational Tests of a Modular Installation and Transport Assembly of Steel Arch Support in Underground Excavations
Autorzy:
Krauze, Krzysztof
Mucha, Kamil
Wydro, Tomasz
Kutnik, Andrzej
Hałas, Waldemar
Ruda, Piotr
Osowski, Dawid
Powiązania:
https://bibliotekanauki.pl/articles/2064564.pdf
Data publikacji:
2021
Wydawca:
STE GROUP
Tematy:
underground mining
steel arch support
modular installation and transport assembly
safety
Opis:
The roof support, especially the ŁP yielding steel arch support, is transported and assembled in the face with the use of auxiliary machines. This activity in Polish underground mines causes numerous problems, which until present have not been solved. Currently, transport and assembly are carried out manually, while the roadheader and suspended rail are used only to a small extent. Therefore, the modular installation and transport assembly was developed jointly by FAMA Sp. z o. o. and AGH University of Science and Technology. The solution in question enables performing a number of functions (including transport and assembly of all kinds of support arches), which are not available in currently manufactured equipment. The proposed manipulator solves numerous problems occurring during the installation of the steel arch support in an underground mining excavation and significantly improves the process of drilling galleries. This innovative solution considerably differs from the existing ones, and its greatest advantage is versatility with regard to the cross-section and equipment of the roadway, as well as a wide range of functions. In addition, it can also be used for reloading works. The modular installation and transport assembly together with a platform, a temporary mechanized roof support and a mining machine, make up a mechanizes roadheader complex, which enables continuous mining, loading and installing the permanent support in underground workings.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2021, 4, 1; 343--354
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing of mining explosives with regard to the content of carbon oxides and nitrogen oxides in their detonation products
Autorzy:
Zawadzka-Małota, I.
Powiązania:
https://bibliotekanauki.pl/articles/92162.pdf
Data publikacji:
2015
Wydawca:
Główny Instytut Górnictwa
Tematy:
mining explosives
blasting gases
safety
górnicze materiały wybuchowe
gazy postrzałowe
bezpieczeństwo
Opis:
Blasting operations are a risk to the lives of mining workers. Blasting gases are particularly dangerous factors – these are the products from detonations which come from applying explosives which contain toxic nitrogen oxides and carbon monoxide. The aim of this study was the experimental determination of the composition of the blasting gases from a variety of explosives currently being produced in Poland. On the basis of research results, analysis was carried out. To perform research of the composition of blasting gases, after the detonation of explosives, a laboratory test stand was used. The study involved the determination of gaseous products, i.e. nitrogen oxides and carbon oxides. Research was carried out in accordance with research methodology based on European Directive 93/15/EEC and the harmonized standard PN-EN 13631-16. These studies provided information on the amount of harmful gaseous products from mining explosives after detonation.
Źródło:
Journal of Sustainable Mining; 2015, 14, 4; 173-178
2300-1364
2300-3960
Pojawia się w:
Journal of Sustainable Mining
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of Environmental Issues of Mining Enterprises Basing on Integral Environmental Hazard Index
Analiza wpływu na środowisko przedsiębiorstwa górniczego w oparciu o Zintegrowany Indeks Niebezpieczeństwa
Autorzy:
Khokhryakov, A. V.
Fadeichev, A.
Tseytlin, E.
Powiązania:
https://bibliotekanauki.pl/articles/317856.pdf
Data publikacji:
2014
Wydawca:
Polskie Towarzystwo Przeróbki Kopalin
Tematy:
environmental hazard
environmental safety
integral environmental hazard index of mining
mining
environmental safety assessment
zagrożenia środowiskowe
bezpieczeństwo środowiska
Zintegrowany Indeks Środowiskowy dla Górnictwa
ocena bezpieczeństwa środowiskowego
Opis:
In comparison with other industrial complexes, mining enterprises generate the most multifold negative impact on all environmental components: atmosphere, hydrosphere, lithosphere. In the current context of resource limitation, the objective assessment of the level of environmental safety of different technology concepts and organizational decisions, mining enterprises is a vital need. Today, there are three different approaches to environmental safety assessment of industrial enterprises. The main disadvantages of these approaches are complication in specific environmental consideration of mining enterprises; difficulty of top environmental target selection, subjectivity of enterprises ranking by level of environmental safety. It was proposed a new approach of environmental safety and negative impact assessment (with help of integral environmental hazard index of mining) in the light of specific features of mining. It is based on complex affine environmental, technology and geological factors. This approach is admitting to rank mining enterprises in negative impact descending order, define top environmental targets for mining enterprises and the most effective every environmental action.
W porównaniu z innymi gałęziami przemysłu, przedsiębiorstwa górnicze generują najbardziej negatywny wpływ na wszystkie komponenty środowiska: atmosferę, hydrosferę, litosferę. W obecnej sytuacji ubożenia zasobów, istnieje potrzeba oceny poziomu bezpieczeństwa środowiskowego dla różnych technologii. Obecnie istnieją trzy sposoby oceny bezpieczeństwa środowiskowego przedsiębiorstw przemysłowych. Główne wady tych rozwiązań to skomplikowane rozwiązania technologiczne przedsiębiorstw górniczych, trudności w wyborze rozwiązania docelowego, subiektywność rankingu rozwiązań. Zaproponowano nowe podejście do oceny bezpieczeństwa środowiskowego i oceny skutków dla środowiska za pomocą integralnego wskaźnika zagrożenia środowiska w górnictwie. Jest on oparty na złożonych czynnikach środowiskowych, technologicznych i geologicznych. Takie podejście pozwala ocenę przedsiębiorstw górniczych pod katem malejącego negatywnego wpływu na środowisko i wskazanie najbardziej skutecznych działanie.
Źródło:
Inżynieria Mineralna; 2014, R. 15, nr 1, 1; 283-285
1640-4920
Pojawia się w:
Inżynieria Mineralna
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 41

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