How Mine Dust is Produced

Thursday 7 April 2011


How Mine Dust is Produced









The dust from a mine is to a large degree different from the dust you find in
your home. Dust in your home is mostly made up of dead skin while mine dust is
almost exclusively a mineral in a fine powder form.
Most written definitions
of mine dust are close to the following: dust from drilling, blasting, smashing
or handling of rock. The majority of the dust made by one of these activities
are too large to stay in the air for any length of time and account for about 40
percent of all dust created at a mine site. The remainder is less than 10
micrometers in size. The majority of these particles is less than 2.5
micrometers and are produced from the exhaust of equipment used on the mining
site.
The smallest size particle is what is most hazardous to the
population's health. The larger dust particles are an eye sore and are costly to
clean up, but are less hazardous to one's health.
The smaller particles do
produce certain health hazards that include respiratory problems due to the fact
that they are in the air that is breathed in to the lungs. This can be minimized
if mining personnel were to wear masks designed to filter out the dust.

Another method dust can be minimized on the mining site is by utilizing a
dust suppression system. This is where water is sprayed over piles of rocks and
the ground, particularly in the loading areas. These particles will be absorbed
by the water thus become too heavy to remainin the air and eventually drop back
onto the ground from which they came
The large trucks that are used in the
mining area are also responsible for kicking up a great deal of dust, but most
of that is fugitive dust from the ground soil and not the mine
dust.


Source:
http://www.ArticlePros.com/author.php?Mark
Sierra

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