Measurement of Size Distribution of Blasted Rock Using ...
Measurement of Size Distribution of Blasted Rock Using Digital Image Processing ... the only practical tool for evaluating fragmentation of the run of mine. Measurement of Size Distribution of Blasted Rock … 83 However, some errors are also associated with the digital image
Development of 3D rock fragmentation …
Run-of-mine fragmentation is an important aspect of mine productivity optimisation, as it affects all mine-to-mill processes. In this study, a 3D rock fragmentation measurement (3DFM) system is proposed that can surmount the limitations of conventional 2D photo-based rock fragmentation measurement methods.
Prediction of Rock Fragmentation in Open Pit Mines
Prediction of Rock Fragmentation in Open Pit Mines, using Neural Network Analysis Kazem Oraee1, Bahareh Asi2 Loading and transport costs constitute up to 50% of the total operational costs in open pit mines. Fragmentation of the rock after blasting is an important determinant of the cost associated with these two components of mine development.
(PDF) Rock Fragmentation Prediction using Kuz …
Rock Fragmentation Prediction using Kuz-Ram ... a run-of-mine (ROM) feed that does ... total operational costs in open pit mines. Fragmentation of the rock after blasting is an important ...
Rock Fragmentation Size Analysis Systems - Split …
Rock fragmentation from different blast designs can be evaluated to help optimize blasting. Understand the Crusher Performance and the Feed to the Circuit: Measure the feed variability and correlate to crusher throughput and reduction ratios. Feed forward information for the plant regarding what is coming from the mine.
Rock Fragmentation by Blasting - Orica
By optimising rock fragmentation by blasting, you can achieve significant improvements in waste productivity, mill throughput, fragmentation profile and wall stability. Stuart Thomson, Oricas Global Bulk and Packaged Explosives Product Manager, explains in this stone how blasting improves productivity and environmental performance with some innovative new Orica products.
Application of laser scanning to measure …
Image analysis as a technique for fragmentation measurement of rock piles has been the subject of research since the 1980s, and to date, run of mine (ROM) fragmentation optimisation studies have ...
Improving Rock Fragmentation at the Ahafo Gold …
After a statistical analysis of the available data on post-blast fragmentation, it was observed that the desired run of mine (ROM) P80 target of 350 mm is rarely met. It was concluded that the "Kuz-Ram" model used to predict the fragment size distribution is incorrectly applied, which resulted in a planned blast design that produces a coarse fragmentation with an excessive presence of boulders.
Blast optimization - liming
We use tailored modelling and ore tracking tools in our blast optimization consulting to help you develop optimal blast designs for your operation. The result is better rock fragmentation in the blast to improve the efficiency of downstream processes while maintaining safe and stable slopes in your mine.
Investigation of rock blast fragmentation based on ...
Investigation of rock blast fragmentation based on specific explosive energy and in-situ ... Empirical models, Open pit mines, Rock fragmentation 1. Introduction Rock blasting is the most commonly used method for rock breakage in mining. Controling the blast fragmentation ... to predict the run of the mine size distribution. The sum of ...
v117n11a10 Target fragmentation for efficient loading and ...
Blast-induced fragmentation has a significant influence on the operational efficiency of open pit mines, especially on loading and crushing, the two immediate tasks after blasting. This study presents an empirical method to determine the target fragmentation for efficient loading and crushing at the Aitik mine in Sweden.
Measuring blast fragmentation at Esperanza mine …
6-2-2015 · AbstractImage analysis as a technique for fragmentation measurement of rock piles has been the subject of research since the 1980s, and to date, run of mine (ROM) fragmentation optimisation studies have primarily relied on particle size measurement using photographic-based 2D imaging systems. Disadvantages of 2D imaging systems include particle delineation errors because of …
Prediction of Rock Fragmentation Using a Gamma …
A blast fragmentation model is developed based on the gamma function to describe the run-of-mine fragmentation distribution. The model presented is aimed to benefit from simplicity in application and also to be efficient in description of the fine to coarse part of the blast rock fragments. In fact, the gamma based model (KC-KUM), gives a...
Rock fragmentation control in opencast blasting ...
1. Introduction. Rock fragmentation distribution influences a range of mining and milling processes including load and haul rates, crushing and grinding performance and ore recovery in beneficiation processes (Michaud et al., 1997).In opencast mining, where blasting is employed for excavation, the overall cost effectiveness of the production operations is compatible with optimization of ...
Measuring blast fragmentation at Esperanza mine using high ...
2 Measuring blast fragmentation at Esperanza mine using high resolution 3D laser scanning I. Onederra1, M. Thurley2,3 & A. Catalan4 1School of Mechanical and Mining Engineering, CRCMining, The University of Queensland, Brisbane, Qld, Australia. 2Innovative Machine Vision Pty Ltd, Melbourne, Australia, 3Luleå University of Technology, Luleå, Sweden
Influence of Blasting Parameters and Density of …
A quantitative research was conducted at Tschudi mine, Tsumeb, Namibia with its main drive being to determine the influence that density and blast parameters has on the performance of a blast. The factors that are most vital to the fragmentation process are classified into three namely: explosive parameters, rock parameters and blast geometry.
Prediction of rock fragmentation due to blasting in …
The current stone introduces a new fuzzy model, which can be applied to predict rock fragmentation in the open-pit mine blasting, and hence; it is applied in Gol-E-Gohar iron mine. To validate the performance of this model, the simulation results are compared with the conventional regression analysis. 2. Case study on Gol-E-Gohar iron mine
fragmentation – Mining and Blasting
12-10-2012 · Rock breakage by Detonation and Interaction of explosive energy with rock – There are three sources of generation of fragments in mines: (a) Fragments formed by new fractures created by detonating explosive charge, (b) In-situ blocks that have simply been liberated from the rock mass without further breakage and (c) Fragments formed by extending the in-situ fractures in combination …