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CERTIFIED COMPANY

Bag Filters

Design, construction, installation and maintenance of bag filters for industry in all sizes and capacities.

What are bag filters?

A bag filter is a device air dust removal based on the passage of the gas flow through filtering surfaces designed to be permeable to gases but retain even very fine particulates. This is a system that works under depression: a fan downstream of the system generates the necessary air depression to generate the flow through the filters, which are cylindrical bags of filter material (hence the old name often used for these devices, that of "bag filters".)

Bag filters are a dust collection system particularly suitable for environments where large volumes of air are involved; they are often used in incinerators, steel mills and cement plants, to retain both dust and dry fumes.


Why are bag filters used?

As we have said, bag filters are ideal in industrial dust collection applications where the volumes of air to be handled are very high. Their construction features essentially present three advantages:
  • Low investment costs:
    bag filters have a relatively simple structure, which does not present particularly high initial costs. Maintenance costs often have a greater impact.
  • Versatility:
    Sleeve filters find useful application in a very wide range of industries because they are able to handle – based above all on the filter medium used, which can vary from fabrics to felts in polyester, polypropylene or other materials – a vast range of particulates of different natures. In addition to this, their modular structure makes them easily adaptable to different configurations.
  • High efficiency:
    In all their applications, sleeve filters manufactured in accordance with specific company needs give excellent dust removal results with all production volumes.
In view of this, it is essential to correctly determine the filter medium to be used for the sleeves, a choice that must be made based on the nature and temperature of the air and the substances suspended in it. If done correctly, this decision can yield excellent results.

The reference standard for sleeve filters is based on BAT (Best Available Technologies) to which the tables of the Italian Regions refer.



Application areas of sleeve filters

Industrial sleeve filters, as mentioned above, find use in a vast variety of different industrial and production areas.
A partial list cannot fail to include at least the following:
Metalworking
Painting
aerospace
railway
graphic and printing
pharmaceutical
nautical
food industry
incineration plants
cement plants
steel mills
woodworking
foundries
grinding
Welding and spot welding
Thermal cutting
Metal cleaning
sandblasting
Metallization
Polishing
Tool sharpening
Turning
Dry milling

Bruno Balducci srl's sleeve filter products

As manufacturers of our own baghouse filters, here at Bruno Balducci srl we are able to design and customize each filter according to the application conditions, the sector of use and the filtration efficiency required by the customer.

In sleeve filtration, the choice of the specific filter material is of paramount importance to ensure the removal of particulates of any nature and granulometry. The type of pollutant and sector dictates the choice of material for the external structure, which can be galvanized sheet metal, AISI 304 or 316 stainless steel, Corten or carbon steel, so as to withstand particularly hostile environments.

The possibility of creating filters is fundamental according to ATEX specifications for use in explosion-hazardous environments.

Our service includes, in addition to design and production, all the necessary maintenance operations to keep your filtration devices in perfect efficiency. We have, in particular, consumables and spare parts for all models available on the market, and we are able to custom-build any spare parts that are out of production.