Analysis of Powered Roof Support Operation Based on a Virtual Driver

Szurgacz, Dawid; Brodny, Jarosław

doi:10.2478/mape-2018-0053

Cited by 2 publications

(4 citation statements)

References 11 publications

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“…It enables testing of control elements and visualization of the work parameters of a powered roof support. Figure 13 shows the station with its components and elements marked [54,55].…”

Section: Research On the Development Of Electro-hydraulic Control Of mentioning

confidence: 99%

“…Measurements in this area included determining the time of switching on the PWM signal and full signal supply for the basic functions performed by the roof support. The operating parameters of the control system obtained for individual phases of the section operation are shown in Figure 14 [54,55]. An analysis of measurement uncertainty was also carried out for these results.…”

Section: Research On the Development Of Electro-hydraulic Control Of mentioning

confidence: 99%

“…Figure 14. Switching on and lag times with the PWM and full signal for leg's sliding down mode (own study based on data from [54,55]). The scope of research carried out using the developed system is very wide.…”

Section: Research On the Development Of Electro-hydraulic Control Of mentioning

confidence: 99%

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Adapting the Powered Roof Support to Diverse Mining and Geological Conditions

Szurgacz

Brodny

2020

Energies

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A powered roof support is one of the most important machines of a longwall system. Its basic task is to ensure the safety and continuity of the mining process. The conditions of coal mining process are constantly changing and have significantly deteriorated in recent years, which in turn has also resulted in a significant increase in the requirements for mining support. As a result, it is necessary to develop an appropriate methodology that will facilitate the design and testing process of a power roof support as well as will help to select a roof support adjusted to given conditions. The article presents such a methodology. It is based on forecasted load impacting on a roof support, tests covering selected systems and elements of the section as well as legal conditions regarding the admission of the roof support to operation. This idea was developed in the form of a procedure that, by combining the three areas, should support the decision-making process in the case of different underground conditions. In terms of the expected load impacting on the support, the research team identified the most dangerous phenomena occurring in the rock mass that can generate these loads. Stand tests included impact load and permanent clamping of an excavation. The element that significantly impacts the safety of the support operation is a hydraulic leg, and therefore it was tested together with the safety system and the control system. Model tests were also carried out for the system with a safety valve. The developed concept takes into account legal conditions, which should include test results and different support operating conditions in a more flexible way. The main purpose of the work was to develop a comprehensive methodology for testing and assessing the possibility of using a powered roof support for given mining and geological conditions based on an analysis of safety and control systems. The presented approach is undoubtedly new and original, and can be widely used. It enables better adaptation of the support to given conditions. It also fits the research and activities designed to minimize the presence of miners or service workers in hazardous underground exploitation zones and to improve efficiency and boost sustainable development of the mining industry.

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“…It enables testing of control elements and visualization of the work parameters of a powered roof support. Figure 13 shows the station with its components and elements marked [54,55].…”

Section: Research On the Development Of Electro-hydraulic Control Of mentioning

confidence: 99%

Section: Research On the Development Of Electro-hydraulic Control Of mentioning

confidence: 99%

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Adapting the Powered Roof Support to Diverse Mining and Geological Conditions

Szurgacz

Brodny

2020

Energies

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“…This integrated monitoring network consists of wireless sensors mounted mainly in hydraulic legs of the support section. In combination with the data analysis software, a reliable monitoring system can be designed [11].…”

Section: The Relevance Of Industry 40 In Machine Performance Monitoringmentioning

confidence: 99%

A Survey on the potential of monitoring of longwall complex parameters based on industry 4.0

et al. 2020

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A brief description of the program of Industry 4.0 and the impact it has on the economy and its development provided by the students show how the young generation sees the concept–a reality they themselves will soon be engage in as workers. The paper discusses the principles of Industry 4.0 and what they mean to Polish economy. The authors developed a survey and conducted it among students of the Wrocław University of Technology, Faculty of Geoengineering, Mining and Geology, and engineers from the Polska Grupa Górnicza S.A. KWK ROW Ruch Chwałowice. The survey was of an informative nature. It covered a group of underground workers holding different positions including miners, electricians or mechanical fitters. The respondents are employed to carry on various tasks related to operation and maintenance of mining machinery and devices. The questionnaire consists of 15 questions. They were arranged in such a way that the participants could respond in an efficient and quick way. Additionally, the questionnaire contained information about the seniority of a given employee, education and age. The results of the survey demonstrate how employees understand technological change. They can be helpful in implementing the development and implementation of new technologies.

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Analysis of Powered Roof Support Operation Based on a Virtual Driver

Cited by 2 publications

References 11 publications

Adapting the Powered Roof Support to Diverse Mining and Geological Conditions

Adapting the Powered Roof Support to Diverse Mining and Geological Conditions

A Survey on the potential of monitoring of longwall complex parameters based on industry 4.0

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