Breakdown of hoisting machine in mining shaft hoist installed in southern section of R-II shaft of KGHM Polska Miedź S.A. O/ZG Rudna
Journal Title: Mining – Informatics, Automation and Electrical Engineering - Year 2018, Vol 536, Issue 4
Abstract
This article applies to a one-of-its-kind case of the cracking of the main shaft of a hoisting machine that occurred in the southern section of the R-II shaft of KGHM Polska Miedź S.A. Oddział ZG “Rudna” in 2011. The mining shaft hoists installed in the R-II shaft are not only the basic extraction equipment in the Rudna mine but also throughout KGHM. The unscheduled standstill cases of these hoists generate huge losses for the mine. These reasons resulted in the necessity for the ad hoc repair of the damaged shaft and operational use of the hoist until a new shaft is completed and delivered. The article describes the works related to the preparation and execution of the repair of the shaft as well as the tests that were performed. The last stage was the preparation of the operational conditions of the shaft of the machine with the repaired shaft with limited kinematic parameters and under strict supervision until the execution of the new shaft.
Authors and Affiliations
Tomasz Rokita
Keywords
Related Articles
- EP ID EP471125
- DOI 10.7494/miag.2018.4.536.19
- Views 123
- Downloads 0
Automatic compensation of reactive power with a system for monitoring a 6 kV electrical power grid in a mine
The paper features a concept, execution and results of a central system for automatic reactive power compensation of a 6 kV electrical power grid in a mine. The following were used as controlled compensators of reactive...
Study of functional performance improvements for cutting teeth mounted on bucket wheel excavators operating in Oltenia coal basin – Romania
The values of the resultant forces acting on the cutting teeth of BWEs can either be calculated or determined using experimental methods. Based on this, the position and parameters of the working organs during the cuttin...
Integrated system for monitoring and analysis of methane hazards in the longwall area
Polish hard coal mines with high methane explosion hazards commonly use systems for automatic monitoring of air parameters. These systems are used by ventilation personnel in preventive actions, simulation tests and desi...
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...
Significance of chain quality in work safety
From the point of view of the working environment, the quality of the chain used in lifting devices is very important. An important element in hoists and cranes is the short link chain, which largely affects the safety o...