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Title: INCREASING OF THE SERVICE LIFE OF BUCKETS WITH CORNER EDGES OF BUCKED-WHEEL EXCAVATORS IN THE LOCATION OF THE CSA BROWN COAL SURFACE MINE
INCREASING OF THE SERVICE LIFE OF BUCKETS WITH CORNER EDGES OF BUCKED-WHEEL EXCAVATORS IN THE LOCATION OF THE CSA BROWN COAL SURFACE MINE

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Vlastimil Moni; Lubomir Donat; David Hirman
10.5593/sgem2022/1.1/s03.035
10.5593/sgem2022/1.1
1314-2704
978-619-7603-38-5
English
22
1.1
•    Prof. DSc. Oleksandr Trofymchuk, UKRAINE 
•    Prof. Dr. hab. oec. Baiba Rivza, LATVIA
Exploration and Mining
In accordance with the latest trends, considerable emphasis is put on all mining companies in the Czech Republic not only on reducing the environmental impact of brown coal mining, but also on overall efficiency, the balance of which can be improved by increasing of the operational reliability of individual components of technological units and reducing operating costs. And it is the latter sphere, in that Vrsanska uhelna a.s. does considerable initiative. In cooperation with the firm RENOMAG s.r.o. and the Research Institute for Brown Coal a.s. carries out the development and laboratory and in situ operational tests of new types of buckets with corner edges and other material tests of disconnecting organs used in the extraction of brown coal by the surface method. The article briefly acquaints the reader with the progress of work on the development of new types of buckets with corner blades of a bucked-wheel excavator series KU 800 used for mining of the overburden at the site of the Czechoslovak Army mine (CSA) and its content follows a series of articles describing activities in the field for the monitored period within the solved project. Attention is paid mainly to the results of operational testing of new prototypes of blades on a real machine in the conditions of overburden mining at the Vrsany mine, based on other designs and modifications of replaceable corner blade were created, which were tested in real operation of CSA quarry. The new replaceable corner blade with an innovated shape and unique material composition was then used on the KU 800 excavator in order to verify the functionality of the edge geometry in specific operating conditions and to find out the appropriate edge geometry and abrasion protection for the given mining conditions. At the end of the article, the results and evaluation of the implemented long-term operational tests are described together with the final summary of specific benefits of deployed prototypes of buckets with corner edges.
[1] Moni, V.: Mereni povrchovych teplot rohovych britu za provozu rypadla KU 800. VUHU a.s., TPD - 023/19, 2019
[2] Moni V., Donat, L.: Mereni Povrchovych Teplot Rohovych Britu Rypadla Ku 800 Pri Tezbe Obtizne Rozpojitelnych Materialu, Zpravodaj hnede uhli, no. 1, ISSN 1213- 1660, str. 40-43
[3] Moni, V.: Vliv teplotniho obrazu zubu korecku kolesa na jeho zivotnost. VSB – TU Ostrava, Fakulta strojni 2011, Disertacni prace, 120 s, + 67 s. priloh
[4] Moni V., Tauber J., Miletic T.: Vyzkum optimalizace materialu a tvaru reznych organu pracovnich stroju, Zpravodaj hnede uhli, no. 1, ISSN 1213-1660, str. 40-43
[5] Moni V., Rehor M., Miletic T., Tauber J.: Research Of The New Materials And These Materials Adjustment For Cutting Bodies Of Excavators, Scientific Geoconference SGEM 2018, Albena, 6-7/2018, s. 647 – 654, ISSN 1314-2704
The contribution was made with the financial support of the TACR project entitled "Research on the optimization of the shape and material of the cutting bodies of earthmoving and mining machines" and the considerable cooperation of partners from Vrsanska uhelna a.s. and the company RENOMAG, spol. s r.o., whose research results were used in the article
conference
https://doi.org/10.5593/sgem2022/1.1/s03.035
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Proceedings of 22nd International Multidisciplinary Scientific GeoConference SGEM 2022
22nd International Multidisciplinary Scientific GeoConference SGEM 2022, 04 - 10 July, 2022
Proceedings Paper
STEF92 Technology
International Multidisciplinary Scientific GeoConference SGEM
SWS Scholarly Society; Acad Sci Czech Republ; Latvian Acad Sci; Polish Acad Sci; Serbian Acad Sci and Arts; Natl Acad Sci Ukraine; Natl Acad Sci Armenia; Sci Council Japan; European Acad Sci, Arts and Letters; Acad Fine Arts Zagreb Croatia; Croatian Acad Sci and Arts; Acad Sci Moldova; Montenegrin Acad Sci and Arts; Georgian Acad Sci; Acad Fine Arts and Design Bratislava; Turkish Acad Sci.
305-312
04 - 10 July, 2022
website
8422
Mining organ, cutting edge, thermodiagnostics, mining machines