SPEAR - Sonic Pulses and Emissions for Analyzing Rock comminution
| Reference number | |
| Coordinator | Luleå tekniska universitet - Luleå tekniska universitet Inst f samhällsbygg & naturresurser |
| Funding from Vinnova | SEK 1 000 000 |
| Project duration | November 2024 - June 2025 |
| Status | Ongoing |
| Venture | Impact Innovation Metals & Minerals - Program-specific efforts Vinnova |
| Call | Impact Innovation: Feasibility studies within Technological Action Areas in the program Metals & Minerals |
Purpose and goal
This feasibility study aims to explore the potential of using Acoustic Emissions (AE) technology alongside Ultrasonic Pulse Velocity (UPV) testing as an innovative alternative method for assessing the hardness and grindability of rock and drill core samples. Rock hardness is a crucial parameter in mining value chain operations, including comminution (particle size reduction) in mineral processing plants.
Expected effects and result
Evaluation of AE-UPV technology for non-destructive rock hardness and grindability assessment, determining its feasibility and reliability. Initial data will show potential correlations between AE-UPV signatures and rock properties. Operational challenges will be identified, and recommendations for future research will be provided. The study explores sustainability potential and culminates in a report outlining findings and next steps.
Planned approach and implementation
The project is divided into four work packages: 1) Project coordination for planning and reporting, 2) Literature review and setup of equipment for AE-UPV testing, 3) Sample preparation and testing of drill cores and rock samples, including analysis with advanced methods such as µXRF and QEMSCAN, and 4) Data processing and reporting of results. Risks are managed through alternative resources and thorough planning.