High-pressure grinding rolls: model validation and function parameters dependency on process conditions
A model for High Pressure Grinding Rolls (HPGR) was developed in this work based on the widely used Population Balance Model (PBM). This approach uses a variety of different functions one of which is the breakage distribution function. The methodology to determine the function parameters is presente...
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doaj-13a25d33aae34fe9b550bde44b21b6442020-11-25T03:29:32ZengElsevierJournal of Materials Research and Technology2238-78542019-11-018654765489High-pressure grinding rolls: model validation and function parameters dependency on process conditionsHernan Anticoi0Eduard Guasch1Josep Oliva2Pura Alfonso3Marc Bascompta4Lluis Sanmiquel5Corresponding author.; Departament d’Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya Barcelona Tech, Av. Bases de Manresa 61-73, Manresa, Barcelona, 08242, SpainDepartament d’Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya Barcelona Tech, Av. Bases de Manresa 61-73, Manresa, Barcelona, 08242, SpainDepartament d’Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya Barcelona Tech, Av. Bases de Manresa 61-73, Manresa, Barcelona, 08242, SpainDepartament d’Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya Barcelona Tech, Av. Bases de Manresa 61-73, Manresa, Barcelona, 08242, SpainDepartament d’Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya Barcelona Tech, Av. Bases de Manresa 61-73, Manresa, Barcelona, 08242, SpainDepartament d’Enginyeria Minera, Industrial i TIC, Universitat Politècnica de Catalunya Barcelona Tech, Av. Bases de Manresa 61-73, Manresa, Barcelona, 08242, SpainA model for High Pressure Grinding Rolls (HPGR) was developed in this work based on the widely used Population Balance Model (PBM). This approach uses a variety of different functions one of which is the breakage distribution function. The methodology to determine the function parameters is presented and using these values, the model was compared with real processed materials from an HPGR pilot plant, with tungsten ore as the test material. The results of the model parameter determination, and the product of the comminution in the HPGR, showed the dependency of material breakage on the material characteristics, and on the operative and process conditions. The model presented is reasonably robust, showing less error than the 3.0 Root Mean Square Error when compared with a heterogeneous feed particle size distribution material. The operational gap was also studied, and its dependency on the feed particle size, porosity, moisture, and specific pressing force was proven. Keywords: HPGR, Modelling, Breakage, Comminutionhttp://www.sciencedirect.com/science/article/pii/S2238785419301097 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hernan Anticoi Eduard Guasch Josep Oliva Pura Alfonso Marc Bascompta Lluis Sanmiquel |
spellingShingle |
Hernan Anticoi Eduard Guasch Josep Oliva Pura Alfonso Marc Bascompta Lluis Sanmiquel High-pressure grinding rolls: model validation and function parameters dependency on process conditions Journal of Materials Research and Technology |
author_facet |
Hernan Anticoi Eduard Guasch Josep Oliva Pura Alfonso Marc Bascompta Lluis Sanmiquel |
author_sort |
Hernan Anticoi |
title |
High-pressure grinding rolls: model validation and function parameters dependency on process conditions |
title_short |
High-pressure grinding rolls: model validation and function parameters dependency on process conditions |
title_full |
High-pressure grinding rolls: model validation and function parameters dependency on process conditions |
title_fullStr |
High-pressure grinding rolls: model validation and function parameters dependency on process conditions |
title_full_unstemmed |
High-pressure grinding rolls: model validation and function parameters dependency on process conditions |
title_sort |
high-pressure grinding rolls: model validation and function parameters dependency on process conditions |
publisher |
Elsevier |
series |
Journal of Materials Research and Technology |
issn |
2238-7854 |
publishDate |
2019-11-01 |
description |
A model for High Pressure Grinding Rolls (HPGR) was developed in this work based on the widely used Population Balance Model (PBM). This approach uses a variety of different functions one of which is the breakage distribution function. The methodology to determine the function parameters is presented and using these values, the model was compared with real processed materials from an HPGR pilot plant, with tungsten ore as the test material. The results of the model parameter determination, and the product of the comminution in the HPGR, showed the dependency of material breakage on the material characteristics, and on the operative and process conditions. The model presented is reasonably robust, showing less error than the 3.0 Root Mean Square Error when compared with a heterogeneous feed particle size distribution material. The operational gap was also studied, and its dependency on the feed particle size, porosity, moisture, and specific pressing force was proven. Keywords: HPGR, Modelling, Breakage, Comminution |
url |
http://www.sciencedirect.com/science/article/pii/S2238785419301097 |
work_keys_str_mv |
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