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Design And Fabrication Of A Dust Extractor
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CHAPTER ONE
INTRODUCTION
Dust is a serious health hazard
especially to the respiratory system. It can have a cumulative effect
eventually resulting in permanent damage to the health.
Fine dust is
the most dangerous and the most difficult to get rid off. The sharing
and the large particles of dust are not much of a problem as most of it
falls to the floor quickly and lungs have a built in mechanism which can
eject relatively large particles.
The dust particles that causes
damage are normally in the range of 0.2 to 5 micron in size (a micron is
one thousand of a millimeter) and so small as t o be invisible to the
naked eye. They can remain suspended in the air for hours. Even if one
cannot see any dust, the atmosphere may still be harming ones lungs. One
is likely to breath 8 to 10 cubic meters of air during and 8 hour
working day most especially those working in the engineering workshops
that has to do with metal drilling (drilling, shaping etc) drugs
manufacturing industry, paint industry and food processing industry.
If
the dust in the air average out of 5 mg per cubic meter during that
period, then you will suck in 50gm (2 ounces0 of dust. Most of this w
ill be dealt with by the body’s own dust defence mechanism the nasal
hair and mucus lined walls of the air ways leading to the lungs will
swallow most of it. Only a very tiny percentage of the dust is
permanently trapped in the lungs but it is this which causes the damage.
Dust from some wood can cause skin complaints such as dermatitis.
Dust
Extractors: With a small dust extractor couple with the respirator to
give a primary protection. You must not need a huge powerful machine it w
ill help to keep the workshop clean and you can use it with it’s
flexible hose to cover up the sharing and remove dust which has settled
on surfaces. Because you have a wood turning lathe you can quickly turn
up a wooden adaptor to accept the hose form your domestic vacuum cleaner
to give you a handy extension hose. If you have other wood working
machines such as a table saw you can hookup the extractor to them when
you need to use them.
CHAPTER ONE -- [Total Page(s) 3]
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ABSRACT - [ Total Page(s): 1 ]Man’s imp act on global environment system especially in the area of dust extraction is now at a scale where it is disrupting. These dust extractors varies in major ways.The environmental degration is, in turn contributing to health threat in this part of the globe. Unfortunately most factories, workshops which suppose to posses these machines for dust extractions a re not having them thereby making dust a very dangerous threat to man. Due to this ugly development it, is obvious that thes ... Continue reading---
