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Many solids like wheat dust, wood dust and even metals in their dust form have high surface area. With a high surface area and surrounded by oxygen (as in the air), combustion can take place at a very rapid rate. This rapid rate of combustion can lead to an explosion. In fact, Dust explosions are hazards in many industries. Taffy
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Why do extractor fans reduce the possibility of an explosion in a flour mill?
Extractor fans help to remove dust and flour particles from the air, reducing the concentration of potentially combustible particles in the air. By reducing the amount of flour dust in the air, the risk of an explosion in a flour mill is decreased because there are fewer combustible materials available to ignite.
What is an example of miller in a sentence?
The miller was covered with flour dust. The miller only ground wheat in the windmill.
What causes a dust explosion?
A dust explosion occurs when a flammable substance in powder form suspended in the air ignites and burns rapidly. When a substance is pulverized, the surface area that is directly exposed to the air increases dramatically. This large surface area allows the combustion reaction to occur much more rapdily than would normally be possible, causing an explosion. Substances that can produce dust explosions include sawdust, grain dust, coal dust, starch, flour, and even some metals.
Can flour be used to extinguish a fire?
No, flour should not be used to extinguish a fire as it can actually make the fire worse by creating a dust explosion. It is safer to use a fire extinguisher or water to put out a fire.
Can flour be used to extinguish fires?
No, flour should not be used to extinguish fires as it can actually make the fire worse by creating a dust explosion. It is safer to use a fire extinguisher or water to put out a fire.
Can flour be used to put out a fire?
No, flour should not be used to put out a fire as it can actually make the fire worse by creating a dust explosion. It is safer to use a fire extinguisher or water to extinguish a fire.
Can you use flour to put out a fire?
No, using flour to put out a fire is not recommended as it can actually make the fire worse by creating a dust explosion. It is safer to use a fire extinguisher or water to extinguish a fire.
Is it possible to have a dust explosion in a hotel air condition ducting system?
it is but i think its against health laws
Can you effectively extinguish a fire using flour?
No, flour is not an effective method for extinguishing a fire. It can actually make the fire worse by creating a dust explosion. It is recommended to use a fire extinguisher or water to put out a fire.
How can flour start a fire if there's a spark?
If the flour is extremely finely ground, the particles can behave almost like a fog or a gas, and reactions with oxygen molecules can be extremely efficient and fast (i.e. explosive), because the oxygen does not have to "burn" through the outer layers of the particles. The phenomenon is not restricted to flour. The right sort of dust (e.g. fine coal dust) can be highly explosive.
Why a spark can cause coal dust in a mine to explode and yet not cause an explosion with charcoal in a barbecue grill?
It is a question of the fuel oxygen ratio. Coal dust has a very high mix rate and as such will burn so quickly it is a form of explosion. A briquet has a very low surface area and is not as volatile. Note that any dust will explode. Flour has always been dangerous and grain silos are built to contain massive explosions.
Why is there a greater risk of explosion with dust in the air rather than dust on ground?
There is a greater risk of explosion with dust in the air rather than dust on ground. This due to the fact that dust combusts quickly and air supports combustion while the ground does not.
