Evaluation of Influence of Crushing Plates Shape on “Mucharz” Sandstone Crushing Process
Paweł Ciężkowski , Jan Maciejewski , Sebastian Bąk
AbstractThis paper presents the results of laboratory tests and evaluation of influence of crushing plates shape on rock crushing process performed on double-toggle jaw crusher. Machine is equipped with diagnostic system that monitors operation of the crusher. Measuring system consists of sensors which are able to determine displacement of moving jaw, forces acting on toggle plate, changes of angular velocity and torque on machine driveshaft. This system allows data acquisition and analysis of acquired signals. The most important parameters that describe crushing process are: crushing forces and specific energy. These parameters were used to evaluate the influence of plates shape in “Mucharz” sandstone crushing process. Tests were carried out on a set of eight plates of different shapes and notches arrangement, i.e., flat plates, plates with triangular profile, plates with coaxial and non-coaxial notches arrangement and plates with constant and variable t scale profiles. Studies show that the plates with triangular profile and variable pitch compared to the flat plates have a positive effect on particle size distribution, loads in the crusher’s working space (crushing forces values), and crushing energy. The product has much less fine fractions for profiled plates but overall process performance decreases comparing to flat plates.
|Publication size in sheets||26|
|Book||Timofiejczuk Anna, Łazarz Edward Bogusław, Chaari Fakher, Burdzik Rafał (eds.): Proceedings of the 6th International Congress on Technical Diagnostic, 2018, ISBN 978-3-319-62041-1, [978-3-319-62042-8], 520 p., DOI:10.1007/978-3-319-62042-8|
|Keywords in English||Jaw crusher Rock crushing Evaluation of plate shape Influence on crushing product Crushing parameters monitoring|
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