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Operating Ideas - May 2017

Off line Filtration Can Cut Oil Consumption and Reduce Maintenance

It’s difficult to name any type of primary mine production and comminution equipment that doesn’t require lubrication in some form. Trucks, shovels, crushers, mills, conveyors and even electrical transformers need oil — and generally, lots of it. Add to that the various tanks, barrels and other containers used for oil storage and transfer, and it’s easy to see why a mine or plant’s productivity and cost-of-operation figures can slide smoothly upward — or quickly downward — on the presence or absence of a thin film of oil.

According to oil filtration specialist C.C. Jensen A/S (CJC), contamination causes 80% of all oil system failures. Palle Maschoreck, head of the Danish company’s mining business segment, recently described his company’s approach to contamination control and prevention to Coal Age: “We have taken technology, which is widely known and used in the global wind [turbine] industry and applied it to mining. We employ a different filtration technology — offline filtration — than the standard inline filters, which enables us to clean and keep oil very clean during operation.”

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Breaking Boulders

 

Stemming is widely used to ensure that a loaded borehole achieves optimum blast results, but the practice can leave large boulders unbroken in the upper layer of burden. The authors explore several proven methods for boulder-busting using explosives.

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Point-level Blockage Detection Technologies Reduce Downtime

Blockage detection for coal chutes is a key factor in the transfer of solid material in bulk handling applications. When moving coal continuously over long (or short) distances, it’s important to consider directional changes to maintain high productivity and keep production schedules on point. As coal transfers from conveyors to inlet/outlet chutes to holding areas, such as silos and bins, to trucks or railcars for distribution, the potential for jams and blockages is high.

Production losses from a blocked transfer chute can cost thousands of dollars per hour. Once production stops to clear the blockage, downtime can stretch from a few minutes to a few hours depending on the severity of the blockage and the required cleanup. The unexpected disruption translates to lost production, lost material, possible equipment damage and safety hazards for employees.

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New Software Releases Help Bring Crucial Elements into Better Focus for Mines

Looking at the plethora of technology available to mining today, it doesn’t seem fathomable that everyday work in the not-so-distant past was done with any kind of real accuracy and efficiency. The Information Age changed society, for better or worse, and the industry ­­— particularly in the areas of safety, planning and production — has never looked back.

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Pay Attention to Proper Filtration — and Profit From It

Mining is an industry that deals in, and appreciates, large numbers. Big mines, for example, routinely rack up hefty equipment purchase, operating and maintenance costs, and hopefully, sizable payoffs in productivity from those investments and expenses. But small numbers can work in a mine operator’s favor as well, particularly when it comes to filtration of vital engine fluids such as fuel and oil, where the objective is to have the lowest possible level of dirt particles and other contaminants circulating in high-tech engine fuel and oil delivery systems.

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