PDF

Prediction of Circulation Load of Side-Flanged High-Pressure Grinding Rolls Closed-Circuit Crushing

Nan Li, Lixia Li

2025Englishmineral processingbeneficiationcomminutionflotationphysical separationhigh-pressure grinding

Abstract

Language:

To enhance the performance of the combined high-pressure grinding roller (HPGR) and tower mill (TM) process for −1 mm particle size, this study addresses the key technical challenges of insufficient material quantity (<100 kg) and complex experimental procedures in HPGR closed-circuit crushing tests by proposing a novel circulating load prediction method based on the principle of mass balance and first-order crushing kinetics. Using a side-flanged HPGR WGM 6020 installation, systematic −1 mm HPGR closed-circuit crushing tests were conducted on seven different ore samples under three specific pressing forces, with detailed characterization of the dynamic variations in product size distribution, specific energy consumption, and circulating load during each cycle. The results demonstrate that within the specific pressing force range of 3.5 N/mm2 to 4.5 N/mm2 when the crushing process reaches equilibrium, the circulating load stabilizes between 100% and 200%, while the specific energy consumption is maintained within 1–2.5 kWh/t. Notably, at the specific pressing force of 4.5 N/mm2, both the circulating load and specific energy consumption show significant stabilization.

Download

Cite This Work

@article{aad50ff5-7fa5-4157-b1a3-d057f78a15be,
  title={Prediction of Circulation Load of Side-Flanged High-Pressure Grinding Rolls Closed-Circuit Crushing},
  author={Nan Li and Lixia Li},
  year={2025},
  language={English}
}
TY  - JOUR
TI  - Prediction of Circulation Load of Side-Flanged High-Pressure Grinding Rolls Closed-Circuit Crushing
AU  - Nan Li
AU  - Lixia Li
PY  - 2025
LA  - English
ER  -

Similar Items

Enhanced accumulation of bitumen residue in a highly concentrated tailings flow by microbubbles from in-situ catalytic decomposition of hydrogen peroxide

Kaiyu Zhou, Somasekhara Goud Sontti

The massive volume of oil sands tailings has been one of the most challenging environmental issues. In this work, we experimentally explore a simple a

2022EnglishPDF

HYDRODYNAMIC EFFECTS ON THE FLOTATION OF PLATINUM ORE IN A PILOT FLOTATION PLANT

Erika van Tonder

This thesis investigates the effect of ore blends on milling and flotation performance. Anglo Platinum’s Waterval UG2 concentrator in Rustenburg proce

2004EnglishPDF

Experimental implementation of an economic model

Paulina Quintanilla, Daniel Navia

We present the implementation of a novel economic model predictive control (E-MPC) strategy for froth flotation, the largest tonnage mineral separatio

2021EnglishPDF

SME Author Guidelines

Franziska Strube, Thomas Wilhelm

The demand for lithium, as well as other critical resources, needed for electrochemical energy storage is expected to grow significantly in the future

2021EnglishPDF

Gold Extraction - Bigger and better

John Chadwick

This article surveys contemporary technological developments aimed at enhancing the efficiency, selectivity, and sustainability of gold extraction and

2007enPDF

Optimization of the SAG Grinding Process Using Statistical Analysis and Machine Learning: A Case Study of the Chilean Copper Mining Industry

Manuel Saldaña, Edelmira Gálvez

Considering the continuous increase in production costs and resource optimization, more than a strategic objective has become imperative in the copper

2023EnglishPDF