<abstract xmlns="http://www.w3.org/1999/xhtml">The results of studies of the crushing process in a double toggle jaw crusher are presented. This process was carried out on six sets of crushing plates. The first three of them are used in industrial crushers – plates with a flat working surface and a triangular profile (in this work, under consideration were profiles with teeth angle γ = 90°). The fourth and fifth type refer to plates with a variable pitch <italic>t</italic> and teeth height with a triangular shape of the teeth. In the sixth solution, plates with variable pitch and width of the wedged teeth are proposed.The results of the basic process parameters are shown, that is, average degree of fineness <italic>n</italic>, technical performance <italic>Wt</italic>, crushing energy <italic>L</italic> and crushing force <italic>F</italic>, sieve analysis of crushing product. The obtained results are the basis for the assessment of the suitability of various types of plates, especially plates with a new profile, which have an altered shape in comparison with the plates used in crushers so far.The crushing tests were carried out with the same dimension of outlet slot <italic>er</italic> = 24 mm, close to the pitch size for plates with triangular profile. Tests were performed on the “Mucharz” sandstone. Samples from a series of blocks of different size and geometric shape were prepared. This work also presents feed mass influence on crushing process efficiency.The plates with variable pitch and width of teeth are beneficial because of lower crushing force and energy.</abstract>

The results of studies of the crushing process in a double toggle jaw crusher are presented. This process was carried out on six sets of crushing plates. The first three of them are used in industrial crushers – plates with a flat working surface and a triangular profile (in this work, under consideration were profiles with teeth angle γ = 90°). The fourth and fifth type refer to plates with a variable pitch t and teeth height with a triangular shape of the teeth. In the sixth solution, plates with variable pitch and width of the wedged teeth are proposed.The results of the basic process parameters are shown, that is, average degree of fineness n, technical performance Wt, crushing energy L and crushing force F, sieve analysis of crushing product. The obtained results are the basis for the assessment of the suitability of various types of plates, especially plates with a new profile, which have an altered shape in comparison with the plates used in crushers so far.The crushing tests were carried out with the same dimension of outlet slot er = 24 mm, close to the pitch size for plates with triangular profile. Tests were performed on the “Mucharz” sandstone. Samples from a series of blocks of different size and geometric shape were prepared. This work also presents feed mass influence on crushing process efficiency.The plates with variable pitch and width of teeth are beneficial because of lower crushing force and energy.

Application of The New Shape Crushing Plate in Machine Crushing Processes

Faculty Of Automotive And Construction Machinery Engineering

Studia Geotechnica et Mechanica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

{"article-title":"Application of The New Shape Crushing Plate in Machine Crushing Processes"}

The results of studies of the crushing process in a double toggle jaw crusher are presented. This process was carried out on six sets of crushing plates. The...

Application of The New Shape Crushing Plate in Machine Crushing Processes

Article Category: Research Article

Published Online: Mar 19, 2020

Page range: 83 - 96

Received: Mar 07, 2019

Accepted: Sep 18, 2019

DOI: https://doi.org/10.2478/sgem-2019-0029

Keywords
Double-toggle jaw crusher, crushing process, crushing plate, technical performance

© 2020 Paweł Ciężkowski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Application of The New Shape Crushing Plate in Machine Crushing Processes

Article Category: Research Article

Published Online: Mar 19, 2020

Page range: 83 - 96

Received: Mar 07, 2019

Accepted: Sep 18, 2019

DOI: https://doi.org/10.2478/sgem-2019-0029

KeywordsDouble-toggle jaw crusher, crushing process, crushing plate, technical performance

© 2020 Paweł Ciężkowski et al., published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.

Keywords
Double-toggle jaw crusher, crushing process, crushing plate, technical performance