|
Bag Filter
Schematic Diagram
for Bag filter
Dust Collector
Single Row of Bags (Sectional view)
Rajdeep’s complete line of Bag
Filter offers an effective and efficient solution
for cleaning of air from dust, generated by plant
process, storage silo, receiving bin, mixer, dryer,
Belt conveyor, Screen etc. Air with Dust can produce
an unpleasant, even hazardous work environment.
Rajdeep’s proprietary Bag
Filters have helped process plants with pollution
control boards regulation by controlling in plant &
environment pollution. In addition to this, these
systems help to reduce occupational hazard,
Working Principle of Bag filter
-
Air along with dust particles
under suction or pressure enters the lower
portion
i.e. hopper of the bag filter.
-
The air travels through the
filter bag, which retains the dust particles
on
surface of the bag, and the clean air passes
out through bags and plenum to the
outlet of Bag filter.
-
Dust is collected on the
outside the bag filter
-
Accumulation of dust on bags
causes an increase in the differential
pressure across the filter bags. Compressed
air is pulsed by a timer actuated series of
normally closed pulse valves at preset
intervals causing the valves to open.
-
A momentary rush of high-
pressure air (4-5 bar) flows from the compressed
air header to the blow tube and is expelled from
the blow tube through nozzles at
a high velocity (primary air flow). Air from
each nozzle induces a secondary
airflow. The combined effect of the primary and
induced secondary air causes an
instantaneous pressure rise on the clean side of
the filter bags, causing a
reverse flow air through the filter bags, thus
dislodging the dust particles held on
the outer surface of the bags.
-
By this mechanism, the dust
collected is released from the bags and falls
into the hopper & the differential pressure is
controlled across the Filter Bags.
-
From this hopper it is discharged
through suitable device i.e. Rotary valve.
-
Since only fraction of the total
filter area of the bag filter is cleaned at any
given
time, continuous flow through the bag filter at rated capacities is assured.
Features of Dust Collection
System
-
Effective Design according to
American Ventilation System Standards
-
High Quality Filter bags.
-
-
-
Guaranteed Emission less than
50 mg/Nm3 according to Application
-
Optimum air-to-cloth (A/C) ratio
-
Optimum Can Velocity for
effective filtration
-
Effective Ratio of pulsing time
to cleaning time
-
Optimum Bag spacing
-
MOC: MS / SS304 / SS316
Our proven Capabilities in Dust
control System
Bags Selection Method
|
