ANALYSIS OF ENERGY CONSUMPTION OF CRUSHING PROCESSES – COMPARISON OF ONE-STAGE AND TWO-STAGE PROCESSES
PBN-AR
Instytucja
Wydział Samochodów i Maszyn Roboczych (Politechnika Warszawska)
Informacje podstawowe
Główny język publikacji
en
Czasopismo
Studia Geotechnica et Mechanica (12pkt w roku publikacji)
ISSN
0137-6365
EISSN
2083-831X
Wydawca
DOI
URL
Rok publikacji
2017
Numer zeszytu
2
Strony od-do
17-24
Numer tomu
39
Identyfikator DOI
Liczba arkuszy
1
Autorzy
Słowa kluczowe
en
Key words: rock crushing
jaw crusher
crushing efficiency
two stage crushing process
Streszczenia
Język
en
Treść
Abstract: This paper presents experimental comparison of two machine crushing technologies: one-stage and two-stage. The study was carried on a model double-toggle jaw crusher which allows crushing forces, energy and toggle displacement to be measured. The main aim of the work was to determine the energy consumption of crushing process assuming a given level of fragmentation. Studies were performed on three rocks: granite “Strzegom”, limestone “Morawica” and sandstone “Mucharz”. The material tested had a cubic shape and average dimension of 90 mm. One-stage crushing was carried out for outlet slot er = 11 mm, and two-stage crushing for er = 24 mm and 11 mm. In the tests special design of variable profile moving jaw was used and fixed jaw was flat. The analysis of the results shows that taking into account energy consumption, it is better to use two-stage crushing process. For given materials energy consumption in the two-stage crushing process was reduced by 30%.
Inne
System-identifier
WUT9328cfd2d45d487b8f938310ffbcca02
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