CAMCORP SWF with Externally Mounted Fan - Manual (Page 19)

START-UP DUST CONTROL SYSTEMS
1. Fan or blower system
A. Start the fan or blower and check rotation.
B. Check dust pickup points for proper suction; balance airflow in individual
ducts.
C. Check for air leakage at all flanged connections.
2. Equipment start-up sequence
A. Start the sweep arm drive motor (direction of rotation is not critical).
B. Start the reverse air fan motor and check rotation.
C. Dust take away equipment such as rotary airlocks, screw conveyors,
horizontal unloading valves, live bottom bin activators, and pneumatic
conveying systems can now be started in their correct sequence.
D. Check that all access doors, hatches, ports, and other openings are closed and
latched or bolted.
E. The main exhaust fan can now be started and brought up to speed.
F. Start the dust laden air through the collector. The collector should be started
under partial load to allow the bags to become slowly and evenly coated with
dust particles.
On pneumatic conveying systems, watch the differential pressure gauge
closely for the first hour or so. If unstable, the collector discharge system
may be too small for the volume it is seeing. A quick fix is to reduce the
material feed until the discharge rate can be increased.
G. Observe the manometer or magnahelic differential pressure gauge reading.
As the new filter bags become coated with dust, the efficiency of the filtering
action increases, and the differential pressure across the filter bags will also
increase. Slowly bring the collector to full load and note the final pressure
drop across the filter bags. Never allow the pressure drop across the filter
bags to exceed 17” w.g. maximum or filter bags may collapse.
H. Check the main airflow with a pitot tube, or equivalent measuring device, to
establish initial conditions. If the main airflow must be adjusted up or down
to suit the process, repeat step 2-H above.
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CAMCORP, INC.
Phone: 913-831-0740 Fax: 913-831-9271