Explosion Temperatures and Pressures of Metals and Other Elemental Dust Clouds

摘要

The Pittsburgh Research Laboratory of thc National Institute for Occupational Safety and Health (NIOSH) conducted a study of the explosibility of various metals and other elemental dusts, with a focus an the experimental explosion temperatures. The data are useful for understanding the basic of dust cloud combustion, as we11 as for evaluating explosion hazards in the minerals and metals processing industries. The dusts studied included boron, carbon, mmagnesium, aluminum, silicon, sulfur, titanium. chromium, iron, nickel, copper, zinc, niobium, molybdenum, tin, hafnium, tantalum, tungsten, and lead. The dusts were chosen to cover a wide range of physical properties from the more volatile materials such as magnesium, aluminum, sulfur, and zinc to the highly 'refractory' elements such as carbon, niobium, molybdenum, tantalum, and tungsten. These flammability studies were conducted in a 20.1, chamber, using strong polytechnic ignitors. A unique multiwavelength infrared pyrometer was used to measure the temperatures.