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Simple devices to prevent dust explosion propagation in charge chutes and pipes
Affiliation:1. Health and Safety Laboratory, Harpur Hill, Buxton, Derbyshire, SK17 9JN, UK;2. Health and Safety Executive, Magdalen House, Bootle, Merseyside L20 3QZ, UK;1. Mary Kay O’Connor Process Safety Center and Department of Chemical Engineering, Texas A&M University, College Station, TX 77843-3122, USA;2. Department of Mechanical Engineering, Texas A&M University, College Station, TX 77843-3123, USA;1. Fujian Key Laboratory of Advanced Materials, College of Materials, Xiamen University, Xiamen 361005, PR China;2. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, PR China;1. Queen''s University, Kingston, Canada;2. School of Power and Energy, Northwestern Polytechnical University, Xi''an, PR China
Abstract:This paper is a report of an experimental programme of work to develop inexpensive dust explosion propagation prevention devices. Two types of device were investigated: one is intended for use with charge chutes attached to process vessels and one is intended for use with pipes attached to process vessels. Three dusts were used with KSt values up to 308 bar m s-1. Both devices were found to be effective and resulted in the elimination or significant reduction in the flame from the charge chute or the pipeline.
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