Home → Cartridge filters → Silo filters
Filter Bags from NEW FILTER
Bag filters are part of the system
"dry" dust-gas cleaning and aspiration. They are used to clean the
gas-dust-air mass with a working temperature up to 360 °C, dust performance up
to 100 g / m³. With proper selection of material from which filters are
manufactured successfully purified as alkaline and acidic environment.
We provide dust collector filter bags,
which are manufactured from the glass fibre, acrylic, ryton, polyester,
polypropylene, PTFE, nomex etc.
with the already outdated electrostatic precipitators that require disparate
energy, gas bag filter has a higher performance and efficiency, and low
After purification, the working medium by
bag for aspiration residual dustiness index usually doesn't exceed 10 mg / m³.
Advantages of Bag Filter System :
- Low Maintenance Cost.
- Practical Efficiency Very High.
- Possibility of Heat Recovery Very Good.
- Effectiveness Not Affected By Gas-dust
Bag filters - types and main producers
As a filtering material for sewing
self-cleaning filters is used in most cases non-woven needle punched material
on the basis of species polyester PES, PAN, PP, PL densities of 400, 500, 550,
600 g/m with special treatments, such as moisture-oil repellent impregnation
of woven PTFE fibers and membranes to impart resistance for high temperatures,
antistatic, etc. Mainly used local filters such forms and designs:
- Round shape - mounted on the filters
only with vertical placement of bags. (BWF gas cleaning companies, Intensiv)
- The flat shape - usually a horizontal
placement (Donaldson Scheuch).
- In the form of an ellipse - can be used
as filters with horizontal placement of bags and on the vertical structures
The principle of regeneration of bag
Passing through filter bags, dust particles
are trapped on their outer surface to form a solid layer of dust. It must be
regularly removed by the action of the pulse regeneration. This process is
carried out due to short supply of compressed air pulses entering into the
pulse bag filter. Thus, under the influence of impulses at the inner side of t
filter element and precipitated dust layer on the surface of dirt behind the bag.
Then dust microparticles come into
the hopper, and from it all removed through the sluice feeder. The length and
frequency of the pulse are regulated. Responsible for this solenoid diaphragm
valves and the elements that are controlled by the control unit.
Regeneration mode can be set to two
kinds of work:
• by timer;
• by differential pressure.
For the well-coordinated work of
regeneration system is requires the calculation of the filter bag, as well as
supply of high quality compressed air with a minimum pressure of 5-8 bar,
purified from mechanical impurities and oil droplets and dry (with the dew
point -40˚C). For these purposes should be installed refrigerated, desiccant
dryers and separators.
Classification of bag filters
In operation, filter material becomes clogged, so the bag
filters should be cleaned regularly. Share the following ways:
- Back flush - effective method of
regenerating filter material by the reverse flow of the purified gas or
- Mechanical agitation - this is the main
way to recovery. It implies a vertical or horizontal shaking of the bag filter.
- Pulse purge. Perhaps the most efficient
method of regeneration, which is commonly used in the filter frame designs.
Scope of application of the bag filters
Metallurgy, asphalt production
- Tobacco industry
- Production of carbon
- Chemical and medical industry
- Electric power stations
- Milling industry
- Mining and processing industry
- Food Industry
- Cement and ferroalloy sphere
- Glass industry
Depending on the degree of contamination
and cleaning efficiency of the system (regeneration) the duration of operation
of bag is 3 year, however, in some circumstances this figure may reach 6 years.
The guarantee of effective work bag filter is a timely replacement of bags.
Why choose us?
||Individual approach |
Official dealers of Sotras, Noitech, Filtrec
Exclusive partnerships with manufacturers give us the possibility to deliver the goods at the lowest prices
||6 years of successful work, hundreds of satisfied clients and our own production
We do not have occasional customers - everyone becomes part of a team of leaders!
Individual approach for each client