Evaluation of Influence of Crushing Plates Shape on “Mucharz” Sandstone Crushing Process

Paweł Ciężkowski , Jan Maciejewski , Sebastian Bąk

Abstract

This 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.
Author Paweł Ciężkowski (FACME / ICME)
Paweł Ciężkowski,,
- The Institute of Construction Machinery Engineering
, Jan Maciejewski (FACME / ICME)
Jan Maciejewski,,
- The Institute of Construction Machinery Engineering
, Sebastian Bąk (FACME / ICME)
Sebastian Bąk,,
- The Institute of Construction Machinery Engineering
Pages239-252
Publication size in sheets26
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 EnglishJaw crusher Rock crushing Evaluation of plate shape Influence on crushing product Crushing parameters monitoring
DOIDOI:10.1007/978-3-319-62042-8_22
URL https://link.springer.com/chapter/10.1007/978-3-319-62042-8_22
Languageen angielski
Score (nominal)15
ScoreMinisterial score = 15.0, 16-11-2018, BookChapterMatConf
Ministerial score (2013-2016) = 15.0, 16-11-2018, BookChapterMatConf
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