Quality engineering tools in analysis of failure of longwall mining complex

Journal Title: Mining – Informatics, Automation and Electrical Engineering - Year 2018, Vol 535, Issue 3

Abstract

Downtimes caused by machine failures translate into a loss of effectiveness in the mining process. The main task of maintenance teams in hard coal mines is to ensure the uninterrupted work of the machines used. A measurable effect of these activities should be reducing machine maintenance and, as a consequence, reducing the costs of coal mining; i.e., a mine's operating costs. In the present article, two longwall mining machines have been analyzed: a cutter-loader and a plow. The analysis was based on one of the quality engineering tools – the Pareto–Lorenz diagram. This tool allows for grouping the causes of breakdowns and establishing which of them are the most important and should be removed first. The analysis has demonstrated the significance of machine selection and its adjustment to the existing geological-mining conditions. Improper selection results in increased energy consumption in the mining process, premature wear, or prolonged downtimes caused by breakdowns.

Authors and Affiliations

Witold Biały, Patrycja Hąbek

Keywords

Related Articles

Requirements for the development of an effective autonomous methane detection system protecting against a sudden emission of methane

The paper features the development origin of a new methane measuring system whose main purpose is to provide quick protection of heavily saturated methane longwalls against a sudden emission of methane from goafs into th...

Experimental investigation of dynamic impact of roadheader on floor

This article presents the selected results of experimental examinations performed on the test stand in the Technological Hall of the Faculty of Mining and Geology at the Silesian University of Technology in which an R-13...

Real-time operational control in information management system for flash-butt welding of rails

Operational control of welding quality is the fundamental element of the entire rail manufacturing process. In practice, real-time systems are used for this purpose. This article features a new method that makes use of f...

Setting the range of reactive power regulation for a salient-poles motor based on the measurement of the synchronous work state

The article features a method of determining synchronous reactance in the axes d and q for a synchronous motor with salient poles based on measuring basic electrical quantities in the state of synchronous work. The admis...

Impact of setting load on bearing capacity of props in a powered support unit

Experience acquired for a number of years proves that the fluidity of production processes in longwalls depends on proper support of the excavation roof. A properly matched power support unit is not enough to guarantee g...

Download PDF file
  • EP ID EP433764
  • DOI 10.7494/miag.2018.3.535.33
  • Views 155
  • Downloads 0

How To Cite

Witold Biały, Patrycja Hąbek (2018). Quality engineering tools in analysis of failure of longwall mining complex. Mining – Informatics, Automation and Electrical Engineering, 535(3), 33-39. https://www.europub.co.uk/articles/-A-433764