fragmentation crusher muckpile

  • Strayos'' Flagship Webinar Was a Fantastic Success

     · 18. Is there scope to identify the fragmentation size in the muckpile ( internally also) after blasting on real time basis, which may guide us to deploy a Excavator or a wheel loader based on the fragmentation, toe formation etc. The typical drone RGB pictures provides the fragmentation analysis for surface and visible layer.

  • Post-Muckpile, Pre-Primary Crusher, Automated Optical ...

     · Post-Muckpile, Pre-Primary Crusher, Automated Optical Blast Fragmentation Sizing Norbert H. Maerz WipWare Inc. P0H-1E0 145 Palangio Road & Tom W. Palangio WipWare Inc. P0H-1E0 145 Palangio Road Pages 119-136

  • Investigation of rock blast fragmentation based on ...

    Investigation of rock blast fragmentation based on specific explosive energy and in-situ block size ... the crusher throughput and the energy consumption, the plant efficiency, yield, and recovery. ... size of a muckpile is a function of powder factor and the geological structure. He suggested that, for a particular rock type, the mean

  • How to Get the Fragmentation you Want

     · A recent survey of quarry companies attending Quarry Academy hosted by Dyno Nobel and found that a whopping 60% of quarries feel their muck pile fragmentation could be better. Only 2% felt the quality of their muck pile fragmentation was excellent. 50% of the quarries stated that their major fragmentation issue was that the fragmentation was oversize, 28% said it was …

  • Managing Muckpile Fragmentation Workshop

    Managing Muckpile Fragmentation Workshop Scott G. Giltner. Outline Review of factors affecting fragmentation Burden & Spacing Powder factor Delay time & accuracy Fragmentation modeling. Comminution or Breakage 60% 80% Cum % passing In-situ ROM Crusher Product 10000 0% 20% 40% 0.1 1 10 100 1000Size mm. Fragmentation Parameters Joint Spacing ...

  • Fragmentation Analysis Proceedings of ISERME 2018 UAV ...

    fragmentation, UAV is flown on blasted muckpile with video recording of images. Blast fragmentation photographs are analysed using image analysis software. Photographs are useful to calculate blasted rock volume. This paper describes two case studies. In one of aggregate (granite) quarry in Malaysia, with the help of UAV

  • UTILIZING BASIC STATISTICAL ANALYSIS AND …

    was from photos taken of areas in the blast muckpile. An alternate and more representative method is to take photos as the loads are dumped into the crusher. A more general and manual alternative to commercial fragmentation analysis packages to analyze muck pile photos described in the paper A Blaster''s Tool to Measure Fragmentation (2008).

  • MODELLING FINES IN BLAST FRAGMENTATION AND ITS …

    size distribution of ROM fragmentation is obtained from the images of blasted muckpiles. In hard and massive rock blasting the surface of the muckpile is usually coarser because the rocks in this zone are usually generated from the stemming region and from the front row containing back break (Figure 2). Coarse zone fragment Figure 2.

  • Rock Fragmentation Size Analysis Systems

    Optimize blasting: Measurement of primary crusher rock fragmentation feed provides feedback to the blast plan if truck is tied to the bench location. Relate ore type variation feeding the comminution circuit to help forecast crusher throughput. Fragmentation Profile: Size at the muckpile influences dig rates, shovel maintenance and overall ...

  • Firing patterns and its effect on muckpile shape ...

    Keywords: Firing pattern, fragmentation, progressive relief, throw, drop, muckpile -----***-----1. INTRODUCTION Rock fragmentation assessment plays a key role in the evaluation of efficiency and ...

  • Support vector machines approach to mean particle size of ...

    fragmentation in various mines based on the statistical learning theory. The data base consisted of blast design parameters, explosive ... a muckpile after blasting. Improvement of blasting ... increased bucket and truck fill factors. Suitable and uniform particle size distribution lead to increase in crusher and mill throughput and decrease in ...

  • Influence of density of emulsion explosives on its ...

    detonation of emulsion explosives on fragmentation of blasted muckpile over a range of densities. The den-sity of explosives was varied from 0.6 to 1.1 g/cc which resulted in the variation of detonation velocity from 3262 to 4624 m/s. Keywords: Blasted muckpile, …

  • FIRING PATTERNS AND ITS EFFECT ON MUCKPILE SHAPE ...

    fragmentation, muckpile profile was of dome shape and in case of finer fragmentation muckpile profile was spread over large area [21]. This may be due to the inertia and interlocking effect of the coarse fragments. 2. OBJECTIVE The main objective of research study was to investigate the ...

  • (PDF) Modelling fines in blast fragmentation and its ...

    RQD of monzonite in blast #760043 Fragmentation photographs were taken at the post blast muckpiles, at the back of trucks, at the crusher product conveyor and at the sag mill feed conveyor. The images were processed using the Split system to obtain the size distributions of ROM, crusher …

  • The application of a blast audit for production improvement

    The muckpile characteristics were observed to have two major concerns. These concerns were some-what interrelated, but not entirely so. The first was diggability of the muckpile, particularly for the LeTourneau loaders, and the second was the existence of oversize fragments in the muckpile which affected both the muckpile digging and the

  • FRAGMENTATION ANALYSIS OPENS WAY FOR NEW PLANT …

    the overall fragmentation of the muckpile. Compared with traditional techniques, Powersieve provides a very safe, efficient and thorough method of analysing large volumes of material. In the past the program has primarily been used to optimise blast designs, so a specific gradation can be targeted to suit the primary crusher at a given site.

  • Fragmentation and muckpile AI tool

    Demo of fragmentation and rock size analysis using drone images

  • The Swebrec function: linking fragmentation by blasting ...

    JKMRC one-family description of crusher breakage functions based on the t 10 concept to a minimum; and (iii) ... the fines part of the muckpile another. On a more detailed level, the effect of single row blasts is ... 6 Comparison of fragmentation curves from model- and full-scale blasts of B rarp granitic gneiss 18.

  • Improvements in Blasting Technology at Cliffs Natural ...

    Crusher information from the mine dispatch system showed that for the year 2006, the three primary crushers at the Tilden/Empire mines had a collective total of 37 shifts (293 hours) of downtime due to blockages at the crusher. During times when the crusher was down, the haul trucks were rerouted to dump at the surge pile.

  • Quantify Your Fragmentation

    into the crusher. Immediate stoppage of dumping will prevent choking of the crusher. Operators will reduce crusher cleaning and rock hammering resulting in less crusher down-time. More crusher operation time will lead to greater throughput that will increase revenues. Drill and Blast Design (Pit-to-Plant) Fragmentation Profile: Size at the muck

  • Post-Muckpile, Pre-Primary Crusher, Automated Optical ...

    Post-Muckpile, Pre-Primary Crusher, Automated Optical Blast Fragmentation Sizing . By Norbert H. Maerz and ... it has passed through a primary crusher, and the size distribution no longer reflects only the blasting process. ... imaging and measuring the size of fragmentation on muck piles, while still useful, is problematic. Results can vary ...

  • Influence of blasting on the size distribution and ...

    rock properties, blasting pattern, charging etc influence the fragmentation in the muckpile. All fragmentation models predict the right tendencies when primary factors like specific ... crushers and AG mills before being separated into fines and pellets material.

  • BEST PRACTICES IN DRILL AND BLAST

    FRAGMENTATION The key objective is to deliver a product that is broken well enough to maximise crusher throughput. That positions fragmentation as the main infl uence to performance of downstream activities in a mine. As a consequence, the profi t of a mining operation can be greatly improved through optimised fragmentation.

  • Distribution Analysis of Rock Fragments Size Based on the ...

    and in selecting other crushers and conveyor systems. Optimum fragmentation size may not be the required size but knowing the size distribution for blast and rock mass conditions, the contractor can adapt the blasting if possible [2]. For prediction of the fragmentation size after blasting the Kuz-Ram model is generally used.

  • Investigation of the blast fragmentation using the mean ...

    The fragmentation index is defined as: F I = X B x 50 where FI is the Fragmentation index, X B is average in situ block size, and x 50 is mean fragment size of muckpile resulting from blasting. The use of the fragmentation index as a tool to evaluate blasting efficiency was first introduced by Aler and coworkers [9], [10], [11].

  • Fragmentation & Muckpile AI

    In this tutorial we discuss how to analyze particle size distribution results using automated Fragmentation AI. Learn more about the Strayos Academy:

  • Break it Better

     · Break it Better – Mine Blast Fragmentation. Jack Eloranta of Eloranta & Associates stresses the importance of timing a blast properly. "It may take days or weeks to drill out a pattern and loading might take hours or days. But, the time span that really matters is the interval from the detonation of one hole to the time the adjacent hole fires.

  • Managing Muckpile Fragmentation

    Managing Muckpile Fragmentation Scott G. Giltner. Topics to be Covered ... Does the muckpile flow during digging? Do the haul trucks dump at the crusher without delay? Is the throughput and power draw of the crusher consistent? Is secondary breakage required on a regular basis?

  • Optical digital fragmentation measuring systems – inherent ...

     · Abstract Automated optical imaging systems of measuring fragmentation are increasingly being used in the mining, comminution, and materials handling industries. These methods have been well received in many of the industries involved. Considering that in many of these applications there are no alternative ways of sizing material, having even a rudimentary measurement of size distributions ...

  • Rock Fragmentation by Blasting

    The fragmentation of rock is fundamental to mining. It is the first preparatory stage in the extraction process – making rock small enough and loose enough to be efficiently excavated. But this simple statement underestimates how important this activity is for the whole mining operation. By optimising rock fragmentation by blasting, you can ...

  • Experimental blasting in the Cananea Open Pit Mine

    rock fragmentation and reduce boulder count in an open pit mine. In addition, a detailed account of a presplitting technique, developed on the property, is described. Location The property is located near the city of Cananea, Sonora, Mexico, approximately 90 airline miles S. 30° E. of Tucson, Arizona.

  • FRAGMENTATION Break it better

    fragmentation data from an online system. The results can show a number of different things, but most importantly it tells the operator either: a) The crusher needs to be gapped on a more regular basis based on the increased fragmentation size b)The crusher is being gapped too often when it is not required, allowing for less downtime.

  • v117n4a2 An investigation into the fragmentation of ...

    the effect on fragmentation and overall blast performance: Fragmentation analysis of the blasted muckpile Throughput rate of the crushing plant by means of a time study Power consumption of the primary crusher, using the Bond Work Index and applying this to the blasted material. Owing to time constraints, the results of

  • A deep learning approach for rock fragmentation analysis ...

    These orthomosaics were not used during neural network training so that they could be used for model validation. These muckpiles were chosen because they show a range of different fragmentation. Muckpile 1, shown in Fig. 1, had an orthomosaic labelled at a GSD of 5 cm/px. The orthomosaic was manually delineated by an expert and novice with 3 ...

  • Fragmentation Analysis – Kanawha Scales and Systems

    WipFrag 4 Image Analysis Software allows instant PSD analysis of digital images collected at the muckpile after a blast, a closer up sample of a stockpile, a laboratory sample or even drone/UAV images. With auto-scaling capabilities, WipFrag 4 is safe, cost effective and the most accurate fragmentation analysis tool in the world.

  • Three reasons why your primary crusher feed contains ...

     · Changes in fragmentation and breakage characteristics of the feed are sometimes difficult to observe and consequently, difficult to control. ... These blockages can damage the crusher and take time to clear, resulting in a serious bottleneck for the entire process. ... After blasting, an unusual quantity of oversized ore is found in the muckpile.

  • (PDF) Post-Muckpile, Pre-Primary Crusher, Automated ...

    Post-Muckpile, Pre-Primary Crusher, Automated Optical Blast Fragmentation Sizing. Fragblast, 2004. Crusher C. Download PDF. Download Full PDF Package. This paper. A short summary of this paper. 4 Full PDFs related to this paper. READ PAPER.

  • Blasting Design Using Fracture Toughness and Image ...

    blast fragmentation using the Kuz-Ram model, an empirical fragmentation model suggested by Cunningham. The purpose of this study is to develop an empirical model to relate specific explosives energy (ESE) to blasting fragmentation reduction ratio (RR) and rock fracture toughness (KIC).