Dust, fumes and gases in various industrial settings can be dangerous for the health of workers. A variety of illnesses and diseases can afflict people working in an environment that is loaded with dust. A carpentry workshop is a place where huge dust is generated from the manufacturing process. Industrial welding generates a lot of harmful gases and fumes. All these polluting elements vitiate the air that workers have to cope with. As per law, it is mandatory to install dust extraction systems and fume extraction systems at workplaces that generate harmful dust and fumes. The dust extraction systems are meant to arrest the dust particles that are floating in the air and remove it so that the air quality is improved and made suitable for healthy breathing. This can result in lowering incidences of occupational health hazards that have been a concern for all.
Dust can be a silent killer especially if one is exposed to it for extended duration. The problem compounds further because when you inhale dust, you might not have any immediate reaction. The air that you breathe if filled with harmful dust particles in any industrial setting and continuous exposure for many years results in illness like asthma and other respiratory diseases. Depending on the nature of dust particles, people might experience a variety of health conditions – nasal congestion and dryness, eye irritation, skin irritation, prolonged cold, asthma and it can even lead to cancer.
Dust extraction systems – working method
Any dust extraction system has two basic functions – to collect the dust particles from the air and then to remove it for collection in a dedicated area that is usually located outside the building. The dust collector uses high powered fans also known as impellers that are run by electrical motors. The impeller generates high volume of air stream at a certain velocity that drives the dust towards the dust collector. The air movement takes place through ducts that provide passage for carrying out the dust from the workplace.
The volume of air that is generated in a dust extraction system and the velocity at which it is moved are two important parameters that contribute to the efficiency of the system. The volume of air and its velocity have an inter relation that has to be understood when selecting a dust extraction system. The volume of air that has to be removed is directly proportional to the velocity of air. There is a third parameter, which is no less important- leaks in the ducting system can affect the rate of extraction. Ducts have to be checked regularly to ensure that there are no leakages.
When choosing a dust extraction system which is also known as dust collector system, don’t forget to consider the static pressure that has to be dealt by the extractor in addition to the volume of air that has to be handled. Static pressure is considered to be the loss in air pressure that arises from frictional forces as the air hits the inside surface of the ducting.