How to extract industrial dusts?
Dust and polluted air is a problem that affects many production plants in various branches of industry – whether it is construction industry, furniture production or plastics processing. Industrial dusts affect the health of the people and the natural environment, and for these reasons it is crucial to equip production plants in effective dust extracting devices.
There are few methods of cleaning the air from pollution in the form of dust, particles of dirt or powder whether of wood, metal, plastic or cement origin. The basic solution is the use of filter fabrics and filter bags. The general rule here is simple – the flow of dirty air is directed on the filter fabrics, whose minimal pores are so little that stop the dust and dirt but let the clean air through. The filters are then cleaned to remove the dust. In our offer we have the following filter dust collectors:
- ODP and JET – both types have similar construction but different filter bags cleaning methods,
- ODM – a multifunctional device which uses different types of filter cartridges and filter fabrics,
- MDF – stationary dust collectors used for dedusting machines e.g. wood grinding machines.
Cyclones work in a different way. These devices are used either as individual dedusting devices or as initial dedusting device (separating bigger dirt particles from dust) before the main filtration process (dust filtration performed by a dust collector). A cyclone is in a form of a tube ended with a cone shaped lower part. The dirty, dusted air that flows into a cyclone, moves in a rotary motion, which initiates the centrifugal force causing the bigger parts of dirt and dust hit against the cyclone walls and lose their kinetic energy. In effect, the dirt falls down into the cone part of the cyclone from where it can be discharged into a container.
Dedusting in compliance with the EU standards
Some dusts – such as those of wood or paper – are combustible dusts and when in high concentration in the air they may cause a potentially explosiove atmosphere. In such cases it is of utmost importance to make sure the dust collecting devices are protected against such danger and executed accordingly to the ATEX directive. Only devices and installations with such marking give you a reliable protection against explosion or fire caused by dust self-ignition – an effect of e.g. the presence of electrostatic charges.
Which solution to choose?
The adequate selection of installlation and dedusting devices for a given production plant is a very individual matter. It depends on the following factors:
- the size of the production plant
- the dust concentration
- the kind of dust – combustible or noncombustible dust, cement, wood dust etc.
- the explosion risk zone (in case of explosive dust) – defined in accordance to requirements of the ATEX directive.
It is impossible to design and produce an efficient, effective and, above all, safe dedusting system without considering these factors. That is why it is so important that the selection of the installation is done by specialists in dedusting. Our team has had over 20 years of experience in dedusting systems, we are proud to be a leader on the market and to have completed numerous projects for our Customers. If your production activity needs a system for air cleaning, contact us and our specialists will be happy to advise you and select the best solution for your needs.