High pressure roll crusher modelling
Visualitza/Obre
Cita com:
hdl:2117/168964
Càtedra / Departament / Institut
Universitat Politècnica de Catalunya. Departament d'Enginyeria Minera, Industrial i TIC
Tipus de documentConjunt de dades
Data publicació2018
EditorUniversitat Politècnica de Catalunya
Versió1
RequereixMicrosoft office, Matlab2016a
Condicions d'accésAccés obert
Llevat que s'hi indiqui el contrari, els
continguts d'aquesta obra estan subjectes a la llicència de Creative Commons
:
CC0 1.0 Universal
Publicacions relacionadesAnticoi, H., Guasch, E., Hamid, S., Oliva, J., Alfonso, P., Bascompta, M., Sanmiquel, L., Escobet, T., Escobet, A., Parcerisa, D., Peña-Pitarch, E., Argelaguet, M., de Felipe, J.J. An improved high-pressure roll crusher model for tungsten and tantalum ores. "Minerals", 25 Octubre 2018, vol. 8, núm. 11, p. 1-22.
http://hdl.handle.net/2117/124829
Abstract
An improved approach is presented to model the product particle size distribution resulting
from grinding in high-pressure roll crusher with the aim to be used in standard high-pressure grinding
rolls (HPGR). This approach uses different breakage distribution function parameter values for a
single particle compression condition and a bed compression condition. Two materials were used
for the experiments; altered Ta-bearing granite and a calc-silicate tungsten ore. A set of experiments
was performed with constant operative conditions, while varying a selected condition to study the
influence of the equipment set-up on the model. The material was comminuted using a previously
determined specific pressing force, varying the feed particle size, roll speed and the static gap.
A fourth group of experiments were performed varying the specific pressing force. Experimental
results show the high performance of the comminution in a high-pressure environment. The static
gap was the key in order to control the product particle size. A mathematical approach to predict
the product particle size distribution is presented and it showed a good fit when compared to
experimental data. This is the case when a narrow particle size fraction feed is used, but the fit
became remarkably good with a multi-size feed distribution. However, when varying the specific
pressing force in the case of the calc-silicate material, the results were not completely accurate.
The hypothesis of simultaneous single particle compression and bed compression for different size
ranges and with different parameters of the distribution function was probed and reinforced by
various simulations that exchanged bed compression parameters over the single particle compression
distribution function, and vice versa.
Descripció
Using a previous mechanical characterization of two types of material, several lab-test work have been done. The data shows the particle size distribution of these tests, all the inputs and the model simulation presented in the related paper to this data base. The new mathematical approach use the operative conditions and the feed particle size distribution to obtain a product, which is compared with the lab-test results
CitacióAnticoi Sudzuki, H. F. (2018). High pressure roll crusher modelling [Dataset]. 1 v. Universitat Politècnica de Catalunya. https://doi.org/10.5821/data-2117-168964-1
Fitxers | Descripció | Mida | Format | Visualitza |
---|---|---|---|---|
Data_a_Anticoi_et_al_2018b.xlsx | Experimental and simulation data | 36,79Kb | Microsoft Excel 2007 | Visualitza/Obre |