Сибирский федеральный университет

Тип публикации: статья из журнала

Год издания: 2021

Идентификатор DOI: 10.3390/en14030697

Ключевые слова: safety function, electro-hydraulic control system, powered roof support

Аннотация: A powered longwall mining system comprises three basic machines: a shearer, a scraper (longwall) conveyor, and a powered roof support. The powered roof support as a component of a longwall complex has two functions. It protects the working from roof rocks that fall to the area where the machines and people work and transports the machines and devices in the longwall as the mining operation proceeds further into the seam by means of hydraulic actuators that are adequately connected to the powered support. The actuators are controlled by a hydraulic or electro-hydraulic system. The tests and analyses presented in the developed procedure are oriented towards the possibility of introducing automatic control, without the participation of an operator. This is important for the exploitation of seams that are deposited at great depths. The primary objective was to develop a comprehensive methodology for testing and evaluating the possibility of using the system under operating conditions. The conclusions based on the analysis presented are a valuable source of information for the designers in terms of increasing the efficiency of the operation of the system and improving occupational safety. The authors have proposed a procedure for testing and evaluation to introduce an automatic control system into the operating conditions. The procedure combines four areas. Tests and analyses were carried out in order to determine the extent to which the system could be potentially used in the future. The presented solution includes certification and executive documentation.

Журнал: ENERGIES

Выпуск журнала: Vol. 14, Is. 3

Номера страниц: 697

ISSN журнала: 19961073

Место издания: BASEL

Издатель: MDPI

• Szurgacz Dawid (Ctr Hydraul DOH Ltd, PL-41906 Bytom, Poland)
• Zhironkin Sergey (Siberian Fed Univ, Dept Trade & Mkt, 79 Svobodny Av, Krasnoyarsk 660041, Russia; TF Gorbachev Kuzbass State Tech Univ, Dept Open Pit Min, 28 Vesennya St, Kemerovo 650000, Russia; Natl Res Tomsk Polytech Univ, Sch Core Engn Educ, 30 Lenina St, Tomsk 634050, Russia)
• Cehlar Michal (Tech Univ Kosice, Fac Min Ecol Proc Technol & Geotechnol, Letna 9, Kosice 04200, Slovakia)
• Voeth Stefan (TH Georg Agr THGA, Westhoffstr 15, D-44791 Bochum, Germany)
• Spearing Sam (China Univ Min & Technol, Sch Mines, 1 Daxue Rd, Xuzhou 221116, Jiangsu, Peoples R China)
• Ma Liqiang (China Univ Min & Technol, Sch Mines, 1 Daxue Rd, Xuzhou 221116, Jiangsu, Peoples R China)

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