Using CPDM Dust Data

By Emily Haas, Dana Willmer and JJ Meadows

A major part of the newly updated dust regulation requires mine operators to begin collecting respirable dust samples using Continuous Personal Dust Monitors (CPDMs) for designated occupations (DO) and “other” designated occupations (ODO) beginning February 1. With the regulation now in place, mine operators, mine-workers and stakeholders are each responsible for various tasks to ensure an appropriate amount of CPDM 3700 samples are completed per quarter.

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Keeping Mine Hoists Healthy

Shallow shaft or deep, a mine’s hoist machinery needs regular care and inspection

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Combining the Benefits of Dry and Liquid Agents for a Better Fire Suppression System

In the fire suppression industry, some have begun claiming that a liquid-only system is superior to a dual-agent system. The primary reason for this stance is the simplicity factor of using only one agent. However, this line of thought neglects to consider the fact that liquid-only systems needlessly sacrifice the benefits of A:B:C dry agent for the mere purpose of a marketing campaign.

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Innovative Rock-Dusting System to Assist with Respirable Dust Compliance

By Steve Fiscor, Editor-in-Chief

DSI Underground Systems has developed a noncombustible, non-respirable rock dust mixture (DYWIDust) and an application system (DYWIDuster). Coal operators can use the technique to convert their dry rock dust into a wet-dusting system that is dependable and user-friendly. The DYWIDuster is a hydraulically powered unit that sits in the bucket of a scoop. At the beginning of the shift, miners prepare a batch by mixing the dust with water and a polymer, and then set the system aside. They can apply the DYWIDust as needed as the continuous miner moves between headings without having to withdraw the crew from the section.

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Increase Fuel Choices While Maintaining a Slagging and Fouling-Free Boiler

By Dr. Murielle Perronnet, Dr. Adam Campen, David Osby and Nicole Roney

Fluctuating fuel prices, increasingly restrictive emission regulations, and an unpredictable economy are driving energy producers to make operational changes such as burning non-design coals to reduce SOx, NOx, Hg and CO, while also producing power profitably.

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