Bag-type Dust Remover
Bag-type
dust remover in the
rotary dryer series is composed by ash hopper, exhaust duct, filter room, clean room, the
filter bag and framework(bag), manual into cage bone wind valve, pneumatic butterfly valve, pulse soot cleaning institutions,etc.
Bag filter working principle:
Bag-type dust remover is based on filtering principles filter brand-newly type dust removal equipment, using organic fiber or inorganic fibers of the dust filter cloth will gas filtered out.
Dust removal process: by the dongshen gas into the intake from central box ,inside the bag dust entering in, be blocked filter bag outside surface. Purify air into the bag, again by upper case on the bag ,finally by entering exhaust.
Advantages of
Bag filter:
(1) Discharge of dust concentration is low; general under 50mg/N.M.3, can even less than 20mg/N.M.3. for the coal ash ground and high, electricity precipitator to achieve such a low concentration is very difficult, or to increase more investment(namely a conventional 3 electric field to expand to 4 to 6 electric field).
(2)Exhaust from dust concentration than resistance, density and particle size effect. Boiler load changes, the quantity fluctuation on the
bag dust extractions export emitting concentration has little impact.
(3)General bag dust extractions uses separate room structure and leaves headroom in the design.
Precipitator can be rotated overhaul ,without affecting rotation overhaul boiler operation.Therefore, the influence of boiler equipment availability to almost zero.
(4) Because
Bag filter extractions capture more effective, it fine dust to remove the fly ash contained rare metal particles ash. But to P.M.10 readings - which were taken, PM2.5 subtle, reduce dust can effectively remove to those around health harm.
(5)The structure and maintance of bag filter is simple.
(6)As the key problem of
bag filter- material, now also has breakthrough ,using life than 2 years, actually can reach 4-6 years of achievements.
(7)In dry or half
rotary dryer desulphurization system, further reduce the role of SO2.
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