Determination of Workloads in Cutting Head of Longwall Tumble Heading Machine

Biały, Witold

doi:10.2478/mspe-08-01-2016

Cited by 9 publications

(7 citation statements)

References 1 publication

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“…Raw materials found in coal seams are exploited by means of mechanized longwall systems [4]. Longwall systems are systems of compatible and cooperating machines that simultaneously carry out the process of mining (loading and hauling of mined rock) as well as securing the roof.…”

Section: Mikrus Automated Longwall Systemmentioning

confidence: 99%

Automation and Robotization of Underground Mining in Poland

Bołoz

Biały

2020

Applied Sciences

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The article concerns the condition of automation and robotization of underground mining in Poland. Attention has been focused on the specific character of the mining industry. This limits the possibility of using robotization, and sometimes even the mechanization of certain processes. In recent years, robotic and automated machines and machine system solutions have been developed and applied in Poland. They are autonomous to a various degree, depending on the branch. The type of automation and artificial intelligence depends on the specific use. Some examples presently being used include the MIKRUS automated longwall system and autonomous device(s) for breaking rocks or mining rescue work. In Poland, fully automated plow systems produced by foreign companies are also used. Companies in Poland and international research centers are also actively engaged in the development of underwater and space mining. where robotization is of key importance. Research is also being undertaken by Robotics in Mining, euRobotics and PERASPERA as well as Space Mining Conference.

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Section: Mikrus Automated Longwall Systemmentioning

confidence: 99%

Automation and Robotization of Underground Mining in Poland

Bołoz

Biały

2020

Applied Sciences

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“…Hard coal is mined almost exclusively using longwall techniques based on longwall systems. Shearer (Krauze, 2010;Biały, 2016) and plow (Ajamzadeh et al, 2019) longwall systems are sets of machines that enable effective extraction of coal from seams. Such complexes are offered by many manufacturers and are widely used all over the world (Dyczko et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Operational Tests of a Modular Installation and Transport Assembly of Steel Arch Support in Underground Excavations

Krauze

Mucha

Wydro

et al. 2021

Multidisciplinary Aspects of Production Engineering

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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.

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“…These tools are also used in the case of hardly workable rocks, for example to equip cutting heads of roadheaders. Methods of mechanical mining of hard, extremely difficult-to-cut and abrasive rocks have been sought for many years (Biały, 2014, Biały, 2016, Fries et al, 2016, Krauze et al, 2015, Stopka et al, 2013, Dehkhoda and Detournay, 2019. The development of a system for mining this type of rock requires solving a number of problems related to tool life (Gajewski et al, 2008, Krauze et al, 2015, Kotwica, 2018.…”

Section: Introductionmentioning

confidence: 99%

Machines for Mechanical Mining of Hardly Workable and Abrasive Rocks

Bołoz

Kalukiewicz

2020

Multidisciplinary Aspects of Production Engineering

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Mechanical mining is a widely used method for separating material from mined rock in the mining branch, tunnelling, road and construction industries. Depending on the mechanical properties of rocks, most often defined by uniaxial compressive strength, various machines and tools are applied. Apart from rock strength, the efficiency of the mining process is determined by abrasiveness, which affects the rate of tool abrasive wear. Currently, disc mining by static pressure or rear undercutting are the most developed methods. Undercutting can be supported by high pressure water jet or disk oscillation. Mining with drills also utilizes static pressure. In addition to discs, conical picks are applied; they are mounted on cutterheads. In underground mining and tunnelling, there is an increasing need to cut abrasive rocks with a strength of more than 120 MPa in places where explosive materials cannot be used. In the article, the recently applied and developed methods of cutting abrasive rocks characterized by high strength, such as copper, gold, tungsten or platinum ores and diamond deposits, have been presented. Next, the latest machines and machine systems used for their mining are reviewed. Leaders in the mining machinery industry, such as Joy (Komatsu), Epiroc (Atlas Copco), Sandvik and Aker Wirth are developing proprietary designs of cutting machines based on both well-known and completely new ideas.

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Determination of Workloads in Cutting Head of Longwall Tumble Heading Machine

Cited by 9 publications

References 1 publication

Automation and Robotization of Underground Mining in Poland

Automation and Robotization of Underground Mining in Poland

Operational Tests of a Modular Installation and Transport Assembly of Steel Arch Support in Underground Excavations

Machines for Mechanical Mining of Hardly Workable and Abrasive Rocks

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