Рад у зборнику

објављена

српски

Stevan Đenadić, Dragan Ignjatović, Predrag Jovančić, Milena Lekić, Žarko Aleksić, Janković Ivan

Analiza osnovnih indikatora upotrebnog kvaliteta mašina pomoćne mehanizacije na površinskim kopovima uglja

Analysis of basic indicators for machine use quality of auxiliary machinery on open pit coal mines

Vladimir Pavlović

Jugoslovenski komitet za površinsku eksploataciju

2022

Izbor optimalnog tipa mašine i adekvatno upravljanje kroz životni vek je kompleksan zadatak. Osnovna pitanja koje se postavljaju prilikom rešavanja ovog zadatka vezana su za stepen zadovoljenja rada mašine i optimalan trenutak zamene iste. U ovom radu je izvršena analiza rada dozera koji su u radu na površinskom kopu lignita RB Kolubara. Analizom je obuhvaćeno 4 različita proizvođača dozera a to su: Caterpillar, Dressta i Shantui i Liebherr. Analiza je izvršena sa aspekta ukupnih troškova koji se stvaraju i njihove empirijske raspoloživosti kao osnovnih indikatora upotrebnog kvaliteta mašine. Oba parametra se analiziraju u funkciji vremena i ukazuju na mogućnost unapređenja upravljanja mašinom i na optimalan trenutak njene zamene u odnosu na tržišne uslove razmatranog trenutka. Postavljena granična vrednost prema kriterijumu troškova je 70 €/mh, dok je postavljena granična vrednost za empirijsku raspoloživost 0,8. Pored toga urađena i analiza osetljivosti prema oba parametra. Ovakav tip analize se može proširiti različitim parametrima u odnosu na uslove rada kako bi se formirao model za optimalni izbor mašina pri narednim nabavkama.

Choosing the optimal type of machine and adequate management throughout its lifetime is a complex task. The basic questions that arise when solving this task are related to the degree of satisfaction of the machine's operation and the optimal moment of its replacement. In this paper, an analysis of the operation of the dozers that are in operation at the opencast lignite mine of RB Kolubara was performed. The analysis includes 4 different manufacturers of dozers, namely: Caterpillar, Dressta and Shantui and Liebherr. The analysis was performed from the aspect of the total costs that are created and their empirical disposability as the basic indicators of the quality of use of the machine. Both parameters are analyzed as a function of time and indicate the possibility of improving the management of the machine and the optimal moment of its replacement in relation to the market conditions of the considered moment. The set limit value according to the cost criterion is €70/mh, while the set limit value for empirical disposability is 0.8. In addition, a sensitivity analysis was performed according to both parameters. This type of analysis can be extended with different parameters in relation to the operating conditions in order to form a model for the optimal selection of machines in subsequent purchases.

20

31

978-86-83497-29-4

rudarstvo, mehanizacija, upotrebni kvalitet, troškovi, empirijska raspoloživost

mining, mechanization, quality of service, costs, empirical availability

М30

М33

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Creative Commons – Attribution-NonComercial 4.0 International

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