For protection against atmospheric pollution, air laden with dust cyclones, in accordance with regulations in force, it must be cleaned of dust which is then discharged into the atmosphere. In case of transport in a technological purpose dust separator role it is to come off the transported material from the air stream to be discharged into the atmosphere free.
Cyclones aimed at capturing particles and substances released their evacuation from the room space. They are made to eliminate the danger of illness of workers wearing protection equipment, electrical and electronic equipment protecting existing sectors and to recover precious substances in order to reuse them. When designing cyclones is important to know both the nature and quantity of substances released, and the range of particle sizes especially of the fine, which is not deposited, maintaining suspended in air.
Because the development and exploitation of cyclones involve high costs, it is necessary to try first as the technological processes to reduce the amount of dust released, possibly to work with materials that produce less hazardous dust. Cyclones have a use in all areas of dust collection and are used either as single devices or mounted batteries. Dust centrifugal separation is not unlimited. It starts by calculating the maximum limit that is deemed, under this limit dust can no longer be detained. Cyclone separator with a deficiency is initially admitted, but whose cost is generally much lower than any separator.
Cyclone is a device patented in the late XIX century. He is best known separator. Cyclones are devices that use the principle of centrifugal treatment. Centrifugal force arises tangential introduction of an air stream in a conical or cylindrical tube. These devices are the most common devices used for dusting rough in practice. Cyclone consists of a cylindrical shell sheet, finished at the bottom with an outlet cone with dust. Inside the shell there is a cylindrical tube exhaust clean air. Dust-laden air is introduced tangentially into the upper mantle thus gaining a move after a downward spiral. Due to centrifugal force, the solid particles are projected on the walls of the shell are braked in motion and then flow toward the lower cone, fresh air coming through the central inner tube. Entry and exit gas is faceprin top. Dust exhaust is at the bottom where the cyclone is provided with a bunker that having a large inclination to the axis orozontala. Dust in the bunker is under the action of gravity. To ensure an effective treatment, contaminated air in cyclone edge should execute at least two complete revolutions around the central tube.
In general, every company producing filter materials has employees who deal with issues directly related to the theory of filtration materials produced in the company. Installations for air of dusting using textile filter bags in the form of cylindrical or flat surfaces called bag house, present widely used in industry wet.
Cyclones or electrostatic separators with local conditions Where claim a high degree of retention of dust (zone residential or industrial areas where dust is harmful even in small quantities activity), often resorting to bag house, which if correct operation give very good results. Filters characteristics differentiate themselves through working parameters: flow temperature, humidity and gas chemical action, and by the possibility of cleaning clogged filter surfaces and the way products evacuation retained. Also intervening factors of efficiency and economy.