### Breakage Modelling in Rocky – Examples | Computational ...

Nov 02, 2016· Figure 5: DEM simulation of a HPGR (top left). Results showing particle PSD after breakage (top right), specific force (bottom left) and specific power (bottom right) As can be seen in the plot of specific force, a value of 200 MPa for the particle stiffness correlates very well to experimentally measured values.

### EDEM Software: powered by Discrete Element Method (DEM ...

Powered by state-of-the-art Discrete Element Modeling (DEM) technology, EDEM quickly and accurately simulates and analyzes the behavior of bulk materials such as coal, mined ores, soil, tablet, and powders.

### hpgr mills crusher - efacfgerpinnes

Mining and Metal Rocky DEM. Mills and Crushers. Transfer Chutes and Elevators. Screening and Sorting. Mills and Crushers. Media flow patterns, energy absorption rates, particle breakage, liner wear, and large size distributions are some of the many criteria that can be analyzed using Rocky DEM. HPGR Mill. Watch the video. Get price

### Particle breakage with contact-based Energy Spectra - Rocky

Sep 21, 2017· Quite often DEM users are interested in predicting particle breakage, either to promote it (for example, spending less energy in comminution processes) or to avoid it (such as preventing tablet break-in coating processes).. Although it is possible to simulate particle breakage in Rocky, you can drastically decrease the computational cost by using another Rocky tool: Energy Spectra.

### Estimating energy in grinding using DEM modelling - CEEC ...

A full 3D simulation providing a comprehensive prediction of bulk particle dynamics in a grinding mill is now possible using the latest DEM software tools. This paper explores the breakage environment in mills using DEM techniques, and how these techniques may be expanded to provide more useful data for mill and comminution device modelling.

### Analyze grinding efficiency by using particle Energy ...

Oct 18, 2016· Rocky is a powerful, 3D discrete element modeling (DEM) program that quickly and accurately simulates particle behavior within a conveyor chute, mill, or other materials handling system. Rocky analyzes media flow patterns and energy absorption rates, particle breakage, and energy spectra analysis.

### COMMINUTION ENERGY EFFICIENCY UNDERSTANDING .

Dr. Alexander Potapov developed ROCKY by rewriting CDI's older DEM 2001 code. He included a new breakage algorithm using a particle fracture model based on the noted JKMRC T 10, A x b comminution parameters. Here, we show many HPGR studies have validated the DEM accuracy for many comminution machines. Unlike other bond-breakage DEM models ...

### Particle breakage with contact-based Energy Spectra - Rocky

Sep 21, 2017· Quite often DEM users are interested in predicting particle breakage, either to promote it (for example, spending less energy in comminution processes) or to avoid it (such as preventing tablet break-in coating processes).. Although it is possible to simulate particle breakage in Rocky, you can drastically decrease the computational cost by using another Rocky tool: Energy Spectra.

### Comminution '08 - min-eng

Tavares moved ball mill modelling to a new level with his application of non-linear breakage rates. He introduced two distinct modes of breakage, body and surface damage, and demonstrated how to incorporate them in a ball mill model by using particle bed breakage tests and DEM modelling of the energy distribution. Such studies must surely

### Comparison of breakage models in DEM in simulating impact ...

Comparison of breakage models in DEM in simulating impact on particle beds. ... (FBM), showing multiple breakage events. Submodels implemented in ROCKY version 3.11 describe both breakage probability and breakage distribution in each stressing event.

### Predicting HPGR performance and understanding rock ...

EDEM, a DEM based software, was used to model the pilot scale HPGR unit and single particle compression test was used to evaluate the particle breakage and then used as an input parameter for the simulations. The results obtained from the simulation were .

### Analyze grinding efficiency by using particle Energy ...

Oct 18, 2016· Rocky is a powerful, 3D discrete element modeling (DEM) program that quickly and accurately simulates particle behavior within a conveyor chute, mill, or other materials handling system. Rocky analyzes media flow patterns and energy absorption rates, particle breakage, and energy spectra analysis.

### Experimental evaluation of the conjugate anvil hammer mill ...

The inventor, Mr. Lawrence Nordell developed the concept of the CAHM as a by-product of studying SAG mills using DEM (Nordell and Potapov, 2015).It was noticed that 80% of the comminution occurs in a small area (referred to as the 'sweet spot'), inside the SAG mill, where 10 times higher shear work is observed than in the other areas of the mill (see Fig. 1).

### Rocky Dem Showing Particle Breakage In Hpgr Mill

rocky dem showing particle breakage in hpgr mill. rocky dem showing particle breakage in hpgr mill. Energy efficient mineral liberation using HPGR technology. Energy efficient mineral liberation using HPGR technology Article with 90 Reads Source OAI Cite this publication Michael Daniel Abstract This study evaluates the effect of using high ...

### Scaling and optimizing grinding performance - Rocky DEM

Oct 19, 2017· Rocky is a powerful, 3D discrete element modeling (DEM) program that quickly and accurately simulates particle behavior within a conveyor chute, mill, or other materials handling system. Rocky analyzes media flow patterns and energy absorption rates, particle breakage, and energy spectra analysis.

### Ball-Mill Grinding Kinetics of Cement Clinker Comminuted ...

Ball-Mill Grinding Kinetics of Cement Clinker Comminuted in the High-Pressure Roll Mill ... bed in the particle breakage characteristics in the HPGR product have been studied. ... represented in ...

### Rocky Dem Showing Particle Breakage In Hpgr Mill

Showing Particle Breakage in HPGR Mill Rocky DEM YouTube. Dec 10, 2015· Rocky Discrete Element Modeling (DEM) simulation showing our breakage features in a simulated High Pressure Grinding Roll (HPGR) mill.

### Rocky DEM Particle Simulator - YouTube

Showing Particle Breakage in HPGR Mill - Rocky DEM - Duration: 24 seconds. Rocky DEM Particle Simulator. ... Chute Showing Shear Wear - Rocky DEM - Duration: 34 seconds. Rocky DEM Particle .

### Mining and Metal - Rocky DEM

Media flow patterns, energy absorption rates, particle breakage, liner wear, and large size distributions are some of the many criteria that can be analyzed using Rocky DEM. ... Rocky DEM can predict how particle interactions might change the physical appearance of your geometries in 3D as they wear down over time. ... HPGR Mill. Watch the video.

### Rocky - Software Product TechNet Alliance

Software Rocky. ROCKY is a powerful, 3D Discrete Element Modeling (DEM) program that quickly and accurately simulates the granular flow behavior of different shaped and sized particles within a conveyor chute, mill, or other materials handling equipment.

### HPGR High Pressure Grinding Rolls

By shifting more of the particle liberation to the high-pressure grinding roll, substantial savings in power consumption can be achieved. HPGR test results published by Grier (1992) on gold ores from the Mt. Todd project showed significant energy savings for a HPGR/Ball Mill circuit as compared to a SAG/Ball Mill .

### (PDF) HRC - Energy-efficient comminution technology

HRC - Energy-efficient comminution technology. ... of micro cracks generated due to inter-particle breakage. Hydraulic Roll Crushers (HRC TM) being based on existing, well proven HPGR ...

### Experimental evaluation of the conjugate anvil hammer mill ...

Jun 15, 2019· Experimental evaluation of the conjugate anvil hammer mill – Comparison of semi-confined to confined particle breakage ... Discrete Element Method (DEM) modelling showed that the CAHM requires significantly less energy in comparison to existing comminution technologies including High Pressure Grinding Rolls (HPGR). ... and high pressure ...

### Simulation of a Laboratoryscale HPGR using DEM - ResearchGate

Request PDF on ResearchGate | On Sep 19, 2015, Gabriel Barrios and others published Simulation of a Laboratoryscale HPGR using DEM

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