Rock Products

JAN 2018

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Page 38 of 73 ROCK products • January 2018 • 35 Monitors, valves and boosters are set in accessible cabinets so the system is easy to inspect and maintain. With Conveyor 0 running in the background, the air is clear and the work area is compliant. the new dust system, and potentially including the compa- ny's onsite blade replacement service as well. From our first encounter, we've had a positive experience throughout the entire process and we're very satisfied with the result." The Payback There are 22 employees in the mine. The cost of cement industry dust to society and workers has been studied in depth by the EPA to justify dust regulations. The cost of the installation was about $50,000 and the annual main- tenance and chemical costs are about $35,000 per year. The five-year Net Present Value (NPV) of the costs plus the investment is about $200,000. Using the data from the EPA report, the benefit to society created by Continental from being proactive in the mine is about $375,000. So, the intuitive decision to be proactive in protecting the workers and surrounding neighborhoods was a wise choice. There are many ways to look at the direct benefit to the company, including reduced health and safety issues as well as increased equipment life. Sometimes it pays just to do the right thing. Information for this story courtesy of Mark Strebel, dust division manager, Martin Engineering.

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