Rapid combustion of fine particles suspended in the air
Lab demonstration with burning lycopodium powder
A dust explosion is the rapid combustion of fine particles suspended in the air within an enclosed location. Dust explosions can occur where any dispersed powdered combustible material is present in high-enough concentrations in the atmosphere or other oxidizing gaseous medium, such as pure oxygen. In cases when fuel plays the role of a combustible material, the explosion is known as a fuel-air explosion.
Dust explosions are a frequent hazard in coal mines, grain elevators and silos, and other industrial environments. They are also commonly used by special effects artists, filmmakers, and pyrotechnicians, given their spectacular appearance and ability to be safely contained under certain carefully controlled conditions.
Thermobaric weapons exploit this principle by rapidly saturating an area with an easily combustible material and then igniting it to produce explosive force. These weapons are the most powerful non-nuclear weapons in existence.[1]
^Harding, Luke (2007-09-11). "Russia unveils the 'father of all bombs'". The Guardian. ISSN 0261-3077. Retrieved 2019-01-19.
A dustexplosion is the rapid combustion of fine particles suspended in the air within an enclosed location. Dustexplosions can occur where any dispersed...
a significant dustexplosion hazard, as large quantities are suspended in air for transfer from the mill to the power plant. Explosions have occurred[where...
describe the conditions as slave labour. On April 26, 1942, a gas and coal-dustexplosion in the mine sent flames bursting from the mine shaft entrance. Miners'...
suspension of combustible flour or grain dust in the air, a significant explosion can occur. The 1878 explosion of the Washburn "A" Mill in Minneapolis...
thirty-six injured during a dustexplosion at a refinery owned by Imperial Sugar in Port Wentworth, Georgia, United States. Dustexplosions had been an issue of...
the air in a given area, in very rare circumstances, it can cause a dustexplosion. These circumstances are typically within confined spaces. Most governmental...
an accumulation of flour dust inside the Washburn A Mill, the largest mill in the world at the time, led to a dustexplosion that killed the fourteen...
sulfide or explosive natural gases, especially firedamp or methane, dustexplosions, collapsing of mine stopes, mining-induced seismicity, flooding, or...
mixed with air, the spores are highly flammable and are used to create dustexplosions as theatrical special effects. The powder was traditionally used in...
of indoor dust creates the potential for combustible dustexplosions. Several factors are required for this to occur. The "DustExplosion Pentagon" lists...
disease. Like many products in dust form, it can be hazardous in large quantities due to its flammability—see dustexplosion. When mixed with a fluid, corn...
milling industry. A dustexplosion is the rapid combustion of fine particles suspended in the air within an enclosed location. Dustexplosions can occur where...
The Port Colborne explosion at Port Colborne, Ontario was a dustexplosion in the Dominion grain elevator on August 9, 1919. The blast killed 10 and seriously...
and a large dustexplosion. From an early stage, the main theory pursued was that of the dustexplosion. Within 24 hours of the explosion, the Chemical...
Rock dust is a pulverized rock, usually limestone, sprayed on walls inside underground coal mines to prevent coal dustexplosions. The dust acts as a heat...
bombs, and fuel-air explosives (FAE). Demonstration of an open-air dustexplosion Experimental setup Finely-ground flour is dispersed Cloud of flour is...
Recommendations Stemming from Imperial Sugar Explosion" EHS Today "NFPA 61 Standard for the Prevention of Fires and DustExplosions in Agricultural and Food Processing...
Twenty-nine out of thirty-one miners at the site were killed. The coal dustexplosion occurred at 3:27 pm. The accident was the worst in the United States...
colored powder used during the Color Play Asia parties might cause a dustexplosion if the material was combustible. On 27 June 2015, the "Color Play Asia"...
industries. FLACS has dedicated modules to simulate gas explosion, dustexplosion and explosions involving chemical explosives like TNT. FLACS is also extensively...
included a dustexplosion and a build-up of methane beneath the building. However the final report of the HSE indicated that the explosion was due to...
easily when exposed to flame, the handling of sugars risks dustexplosion. The risk of explosion is higher when the sugar has been milled to superfine texture...
a list of accidental explosions and facts about each one, grouped by the time of their occurrence. It does not include explosions caused by terrorist attacks...
In modern coal mines, limestone dust is sprayed onto the exposed coal surfaces to reduce the hazard of dustexplosions. This has the secondary benefit...
report for lack of preparation for such explosions and a safety program that "inadequately addresses dustexplosion hazards". As of August 26, 2008, the...
haz·lōk) are places where fire or explosion hazards may exist. Sources of such hazards include gases, vapors, dust, fibers, and flyings, which are combustible...
potential toxicity of various types of nanomaterials, as well as fire and dustexplosion hazards. Because nanotechnology is a recent development, the health...
Global Information