Dust explosions pose serious and widespread hazards in process industries such as pharmaceuticals, foodstuffs, and aerospace. The accidents involving dust explosions can cause failure of equipment to contain the explosion, injuries and damages to people as well as the surrounding environment, plant shut-down and sometimes destruction of the factory resulting in fatalities and huge financial losses. Therefore, it is important to understand dust behavior and the processing equipment to better provide safe practices. There are four commodity specific standards, NFPA 61 (Agricultural), NFPA 120 (Coal), NFPA 664 (Wood Processing and Woodworking), and NFPA 484 (Metals). Any dust not covered in these standards are covered by NFPA 652 and NFPA 654. This covers a wide range of dust such as plastics, pharmaceuticals, adhesives, etc.
NFPA has given industries that handling dust until 2020 to perform a Dust Hazard Analysis (DHA) on their site by the appropriate expert in dust hazard. Whomever performs the DHA must have extensive knowledge of NFPA, understanding of dust combustibility, and provide appropriate recommendations to cover any gaps in safety.
This webinar will provide those conducting their first DHA with a better understanding of what is needed to cover the basics of a DHA from the explanation on dust combustibility characteristics (Kst, Minimum Explosible Concentration, Minimum Ignition Energy, Minimum Ignition Temperature) important to a DHA, processing equipment (dryers; dust collection systems; hammer mills and belt conveyors), and the appropriate methods of ensuring operator safety.