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Wyświetlanie 1-3 z 3
Tytuł:
A tool for determining the number of bends and places of accumulation of potential wear of steel ropes operating in the luffing systems of basic opencast mining machines
Autorzy:
Olszyna, Grzegorz
Tytko, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/27324347.pdf
Data publikacji:
2022
Wydawca:
Instytut Techniki Górniczej KOMAG
Tematy:
opencast mining
steel ropes
rope modelling
rope wear
Opis:
This article presents the issues of the wear of steel ropes operating in the lowering systems of the largest wheel excavators (BWE), type SchRs, Rs, KWK operating in KWB Bełchatów. Sudden degradation of these ropes may lead to the complete shutdown of the BWE-Belt- Stacker system from operation. However, this can be avoided by regular visual inspections of hoist ropes. Unfortunately, the rope systems in each excavator are different, and their availability is difficult. In order to simplify this task, the authors of this paper have developed an IT tool that allows the modelling of a given multi-pulley rope system and the indication of critical places on the rope for given working conditions. A simplified description of this tool is the subject of the article.
Źródło:
Mining Machines; 2022, 40, 4; 229--237
2719-3306
Pojawia się w:
Mining Machines
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Steel ropes in machines opencast mining
Autorzy:
Olszyna, Grzegorz
Gašić, Vlada
Powiązania:
https://bibliotekanauki.pl/articles/2064383.pdf
Data publikacji:
2019
Wydawca:
STE GROUP
Tematy:
wire rope
opencast mining
rope damage
lina stalowa
górnictwo odkrywkowe
uszkodzenia lin
Opis:
Basic opencast mining machines belong to the group of devices used to perform specific technological operations through mining, loading, transport up to the dumping of mining heaps. Machines work in EBD systems (Excavator-Belt-Dumping) and require high reliability. Multi-bucket excavators that require the use of rope systems in order to maintain stability and the possibility of mining at different levels. The paper focuses on issues related to rope work in multi-buckets excavators. On the basis of studies to assess the technical condition of the ropes identifies the causes of damage to ropes these machines. As a result of the research, final conclusions were formulated.
Źródło:
New Trends in Production Engineering; 2019, 2, 1; 312--320
2545-2843
Pojawia się w:
New Trends in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fatigue life of compacted wire ropes for applications in deep mining
Autorzy:
Kubiś, Bogusław
Olszyna, Grzegorz
Szade, Piotr
Tytko, Andrzej
Powiązania:
https://bibliotekanauki.pl/articles/27315587.pdf
Data publikacji:
2023
Wydawca:
STE GROUP
Tematy:
steel wire rope
fatigue tests
compacted ropes
fatigue durability
Opis:
Recent months have highlighted the progressing energy crisis across Europe in connection with the severe sanctions imposed on the import of hydrocarbons and coal from Russia. This is particularly visible in Poland, where over 40% of electricity is generated from coal, while in individual households it is the primary source of heat. This situation puts the already enigmatic plans of shutting down coal mining in Poland into question. Therefore, work aimed at increasing the extraction capacity of existing shafts while maintaining the highest level of operational safety is still valid. This article concerns the issues of the fatigue life of compacted ropes used as hoist ropes in mine shafts. The discussion regarding the use of these ropes among shaft hoist users has been going on for several years. This paper presents the unique results of compacted rope fatigue tests carried out at the Central Mining Institute in Katowice. In the authors’ view, these results and their interpretation should serve to clarify several important aspects that arouse the interest of users.
Źródło:
Management Systems in Production Engineering; 2023, 1 (31); 95--101
2299-0461
Pojawia się w:
Management Systems in Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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