Plant start ups - For gold, silver, copper, iron, tin, all other base metals, PGM's and industrial minerals. Including these following areas:
Operator training
Creation of Operating Reports
Removing bottlenecks with mechanical and piping modifications if necessary
Cold and hot commissioning
Introduce fast track procedure to achieve full tonnage, design product quality and recovery
Grinding circuit design
Set up and supervise the required sampling and testing programs.
If required, participate in the selection of the location of new drill holes.
Field sampling of core, headings, feed belts and stockpiles to get samples for grinding tests.
Analyse results to determine the hardness variability function for the whole ore body.
Choose the power level required to achieve design throughput.
Select flow sheet, grinding mills, aspect ratios, diameters, lengths and motor kW, report calculations, mill specifications and recommendations for expansion (if applicable).
Concentrator design
Any metal or industrial mineral.
Test work supervision: grinding, flotation, gravity, POX, heap leaching and dewatering.
Feasibility studies, and final design engineering.
Flow sheet design, flow balances, process and equipment selection. All process design matters.
Review existing operations - Conduct study to discover ways to improve the crushing and grinding capacity. Assess the equipment used, the operating results, the research reports and in some cases doing more test work. Recommend modifications to achieve best performance.
Conduct grinding design seminars - The course is available for presentation to individual corporations, or to a geographical region where charges are based on the number of paid participants.
Engineering assistance - Working full time (weeks or months) for mining companies or engineering firms to accomplish any of the duties normally assigned to a Senior Metallurgist.
Starkey & Associates Inc. Grinding Design & Process Engineering151 Randall StreetSuite 212Oakville, OntarioCanadaL6J 1P5 Tel: +1 905 849-6111 Info@SAGDesign.com
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Careers The SAGDesign Test or Standard Autogenous Grinding Design Test is used throughout the world by leading Mining Organizations to understand ore comminution hardness. It is used to determine the pinion energy in both the SAGMill and the Ball Mill. It can also be used in conjunction with other tests such as the JK Drop Weight test and / or the SPI test, the Bond Rod Mill Work Index test, the Bond Crushing Work Index Test and the Unconfined Compressive Strength test. SAG unit power needed to grind from F80 152mm to T80 1.7mm, and the Bond Ball Mill Work Index (Wi) on SAG ground material are measured in the SAGDesign Test. Unit pinion energy required for SAG and Ball milling will be calculated to the final specified D80 for the final product from each Mill. Our reports include recommendations for the best grinding mill power split, T80, and other pertinent information arising from the study, particularly with regard to SAG Mill grate and media size. The SAGDesign Test name is a trade mark of Starkey & Associates. The test procedure is patented worldwide by Outotec who co-sponsored the development work.
The SAGDesign Test or Standard Autogenous Grinding Design Test is used throughout the world by leading Mining Organizations to understand ore comminution hardness. It is used to determine the pinion energy in both the SAGMill and the Ball Mill. It can also be used in conjunction with other tests such as the JK Drop Weight test and / or the SPI test, the Bond Rod Mill Work Index test, the Bond Crushing Work Index Test and the Unconfined Compressive Strength test. SAG unit power needed to grind from F80 152mm to T80 1.7mm, and the Bond Ball Mill Work Index (Wi) on SAG ground material are measured in the SAGDesign Test. Unit pinion energy required for SAG and Ball milling will be calculated to the final specified D80 for the final product from each Mill. Our reports include recommendations for the best grinding mill power split, T80, and other pertinent information arising from the study, particularly with regard to SAG Mill grate and media size. The SAGDesign Test name is a trade mark of Starkey & Associates. The test procedure is patented worldwide by Outotec who co-sponsored the development work.
