Maintenance Management Systems & Procedures
Computerised Maintenance Management System (CMMS) DefinitionThe Computerized Maintenance Management System (CMMS) is a tool used to collect field data and convert it into useful information such that maintenance can determine work needs, control the work and measure effectiveness in carrying out. The CMMS has three basic functions: To determine what work must be accomplished […]
Basic Elements of Maintenance Management
The Mission of a Maintenance Group The mission of the Maintenance Team is to support and enhance the profitability of the treatment and infrastructure Facilities by the preservation of the physical assets and thus assuring their operability. This is accomplished through planned, scheduled, efficiently executed and quality controlled preventive and predictive maintenance of the equipment and […]
Geometallurgy Course & Geometallurgical Modelling
Basic Geometallurgy Short Course for mineral processing applications Geometallurgy and grinding It is often desirable to be able to load ore hardness information into the mine block model. Allows the mining engineers to better schedule ore delivery to the plant, and to run more sophisticated net present value calculations against ore blocks. Requires hundreds of samples from […]
Gold King Mine Waste Water Spill
The 2015 Gold King Mine waste water spill is a 2015 environmental disaster at the Gold King Mine near Silverton, Colorado. On August 5, 2015, EPA personnel along with workers for Environmental Restoration LLC (a Fenton, Missouri, company under EPA contract to mitigate pollutants from the closed mine) caused the release of toxic wastewater when […]
Compare and Understand Rod/Ball/Impact-Crushing/Abrasion BOND Work Index
BOND RWi, BWi, CWi, Ai Work Index: What’s the difference Three Bond work index tests are commonly used in the industry. This essay discusses some observations from SAGMILLING.COM database of published grindability results about relationships, and lack thereof, between the Bond comminution tests. A further comment is made about the Bond abrasion index and its […]
Gyratory and Cone Crushers
Gyratory crushers and cone crushers, while looking the same and performing similar duties, are two different machines. A quick look at a machine will allow you to determine if it is a gyratory or a cone In simple terms, if you look at the top of the crusher and it has supporting arms (“spider arms”) […]
Particle Size Analyze Sampling -Estimating Errors
The full story on uncertainties in particle size analysis is somewhat complex. Gy dealt with the stats issue in terms of particle numbers and the correlation between terms on the cumulative size distribution. However, when sampling in an unbiased from a lot, there are what can be called ‘coarse’ particles and ‘fines’. The split between […]