Modeling Energetic Effectiveness and Breakage Intensity in Mining and Processing Circuits on Limestone Crushing in HPGR

This article refers to the aspects of energy consumption and comminution effectiveness in the mineral processing sector through the evaluation of limestone crushing in a high-pressure grinding roll. The investigative program included a series of crushing tests on limestone samples in a laboratory Hi...

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Main Authors: Agnieszka Saramak, Daniel Saramak
Format: Article
Language:English
Published: MDPI AG 2024-12-01
Series:Energies
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Online Access:https://www.mdpi.com/1996-1073/18/1/122
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author Agnieszka Saramak
Daniel Saramak
author_facet Agnieszka Saramak
Daniel Saramak
author_sort Agnieszka Saramak
collection DOAJ
description This article refers to the aspects of energy consumption and comminution effectiveness in the mineral processing sector through the evaluation of limestone crushing in a high-pressure grinding roll. The investigative program included a series of crushing tests on limestone samples in a laboratory High Pressure Grinding Rolls (HPGR) press device. The tests were carried out in the scheme of factorial experiment with three levels of pressure (Fsp) and three levels of material moisture (M). The major finding was to determine energetic models referring to consumption of energy and reduction in Bond work index Wi, designed as a function of operational pressure in HPGR and material moisture. The other investigative results encompassed models on fineness effectiveness and throughput. The models appeared statistically significant and showed relationships both with pressure and moisture. The results of the investigations showed that Bond work index Wi decreases when the Fsp increases, but Wi increases as the moisture content decreases. The calculated models also showed an increase in unit energy consumption in the press together with increasing of Fsp and moisture. The models for throughput and finest particle content in HPGR product showed in turn that increasing of Fsp and M results in decreasing of the productivity.
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spelling doaj-art-a3a1c2fedb554cdeadcf6672d16ffc3a2025-01-10T13:17:10ZengMDPI AGEnergies1996-10732024-12-0118112210.3390/en18010122Modeling Energetic Effectiveness and Breakage Intensity in Mining and Processing Circuits on Limestone Crushing in HPGRAgnieszka Saramak0Daniel Saramak1Department of Environmental Engineering, Faculty of Civil Engineering and Raw Materials Economy, AGH University of Krakow, 30-059 Krakow, PolandDepartment of Environmental Engineering, Faculty of Civil Engineering and Raw Materials Economy, AGH University of Krakow, 30-059 Krakow, PolandThis article refers to the aspects of energy consumption and comminution effectiveness in the mineral processing sector through the evaluation of limestone crushing in a high-pressure grinding roll. The investigative program included a series of crushing tests on limestone samples in a laboratory High Pressure Grinding Rolls (HPGR) press device. The tests were carried out in the scheme of factorial experiment with three levels of pressure (Fsp) and three levels of material moisture (M). The major finding was to determine energetic models referring to consumption of energy and reduction in Bond work index Wi, designed as a function of operational pressure in HPGR and material moisture. The other investigative results encompassed models on fineness effectiveness and throughput. The models appeared statistically significant and showed relationships both with pressure and moisture. The results of the investigations showed that Bond work index Wi decreases when the Fsp increases, but Wi increases as the moisture content decreases. The calculated models also showed an increase in unit energy consumption in the press together with increasing of Fsp and moisture. The models for throughput and finest particle content in HPGR product showed in turn that increasing of Fsp and M results in decreasing of the productivity.https://www.mdpi.com/1996-1073/18/1/122energyHPGRlimestoneBond work indexmineral processingmathematical modeling
spellingShingle Agnieszka Saramak
Daniel Saramak
Modeling Energetic Effectiveness and Breakage Intensity in Mining and Processing Circuits on Limestone Crushing in HPGR
Energies
energy
HPGR
limestone
Bond work index
mineral processing
mathematical modeling
title Modeling Energetic Effectiveness and Breakage Intensity in Mining and Processing Circuits on Limestone Crushing in HPGR
title_full Modeling Energetic Effectiveness and Breakage Intensity in Mining and Processing Circuits on Limestone Crushing in HPGR
title_fullStr Modeling Energetic Effectiveness and Breakage Intensity in Mining and Processing Circuits on Limestone Crushing in HPGR
title_full_unstemmed Modeling Energetic Effectiveness and Breakage Intensity in Mining and Processing Circuits on Limestone Crushing in HPGR
title_short Modeling Energetic Effectiveness and Breakage Intensity in Mining and Processing Circuits on Limestone Crushing in HPGR
title_sort modeling energetic effectiveness and breakage intensity in mining and processing circuits on limestone crushing in hpgr
topic energy
HPGR
limestone
Bond work index
mineral processing
mathematical modeling
url https://www.mdpi.com/1996-1073/18/1/122
work_keys_str_mv AT agnieszkasaramak modelingenergeticeffectivenessandbreakageintensityinminingandprocessingcircuitsonlimestonecrushinginhpgr
AT danielsaramak modelingenergeticeffectivenessandbreakageintensityinminingandprocessingcircuitsonlimestonecrushinginhpgr