Baghouse filters

Dry filtration systems exploit the principle of operation of the physical separation that may occur by means of a filter cloth - cartridges, bags, pockets - or the centrifugal force - cyclone separator.
The classification according to the kind of dust to treat allows us to identify the best available technology and dimensions of the filtering plant.
The principle on which the bag filter is based is the following:  dust saturated gases enter the filter, then meet a series of cylindrical bags, also called sleeves. The transport of the gas is ensured by a blower, to prevent the particulates to clog the blower  itself, and to keep the system in the depression mode, finally ensuring the necessary depression to the point of fumes outlet or inside the combustion chamber.

Bag filters

The sleeve filters are special systems used for the purification of gas streams, which enter the filter, and they come across a series of sleeves which retain all unsuitable substances, such as powders, particulates, etc.

The filter sleeves, also called "bag", are made with special materials that guarantee the permeability to the gas and  block dust. The external structure, instead, is made of carbon steel or Corten, the material used is chosen according to the type of pollutant to be treated and to the relative industrial sector.

Application fields

These special filters are mainly used in incineration systems, cement plants, steel mills.
There are are so many variables to consider while choosing the right filter, among the most important ones:

• The temperature of the gas;
• Chemical aggressiveness of the gas;
• Current directives
• It's important to provide for each different type of sleeve its  specific cleaning system. 
• There are products designed and built according to current regulations and offer the advantage to be particularly cheap, very efficient, but especially compact.

Kinds of filters

Bag filters are designed and manufactured to specifications related to their use in a particular industrial sector - companies that produce wood, plastic, food, drugs, aggregates, waste disposal, machining - but they are also suitable for the revamping of filters that need to increase their surface area.
According to the application fields, bag filters can be equipped with special optional accessories providing the most efficient air filtration.
The advantage of bag filters are that they can be manufactured in modules, so as to make their transportation, assembly and maintenance easier.