Spencer Jet-Clean Separator - Manual (Page 6)

The Separator is designed so that only a few of the bags are
being pulsed at the same time. Under this arrangement, the
bags that are not being cleaned provide uninterrupted filtering
service.
Start Up
On start up, the manometer should read approximately 1 / 2 ” H 2 O
differential pressure and gradually climb to approximately 4.0”
H
2 O before the first cleaning cycle is initiated. After the cleaning
cycle, the manometer reading should have dropped, indicating
that proper cleaning is occurring. If the differential pressure
across the bags continues to climb, the cleaning cycle should
be set to operate more frequently. If this does not improve per-
formance, check the trouble shooting guide. If trouble persists,
consult factory.
III. Installation
Receipt, Handling, and Storage
Each Jet-Clean Separator and its components and accessories
are carefully crated and packaged to assure arrival at the site
of installation in safe condition. Any damage suffered in transit
should be reported to the carrier immediately. Product damage
should also be reported to The Spencer Turbine Company so
that we may anticipate any need for repairs.
Handling of the Spencer Jet-Clean Separator is simplified by
leaving the unit on its shipping skid until it is located in its
installation area. If the unit is to be slung or hoisted, the lifting
rings (see Figure 1) provided should be employed.
Whenever possible, delivery of the Jet-Clean Separator should
be scheduled to keep storage time at a minimum. When storage
is necessary, the unit should be kept in a cool, dry place and
should not have other items stored on top of it.
Step One: Install the filter bags and bag frames according to
the following procedure.
A. Before the separator is placed in an upright position, open
the bag house door and remove the bag frames and box of
filter bags which are shipped loose inside.
B. Pull a filter bag over the bag frame until the bag end is
immediately next to the locking bolt as shown below.
Position and tighten the bag clamp.
C. The bag frame assembly can now be installed in the Jet-
Clean Separator bag head. Place the bag frame assembly
into the separator and, beginning with the bag furthest from
the separator door, make contact with the frame collar. Turn
in a clockwise direction to engage the frame pins into the
holder guides. Note that when the bag frame assembly is
secure on the frame collar, the locking bolt must be visible
in order for it to be tightened. If, after installation of the bag
frame assembly, the locking bolt is not visible, remove the
frame, reposition and reinstall. When properly installed,
tighten the locking bolt.
V. Trouble Shooting Guide-Separators
Trouble
High differential
pressure across bags
Note: although a
differential pressure of
1” to 6” H
2 O can be
considered normal,
most installations are
designed for a
differential of 4 inches.
Seepage –
Visible Discharge
Insufficient Suction
Unable to Maintain
Compressed Air
Pressure
Poor Filter Bag Life
No Air Released Thru
Injection Holes.
Probable Cause
Overloaded by too much air.
Improper compressed air supply.
System length shorter than design length.
Filter bag loading caused by too much vacuum
for system.
Sequencer will not pulse
Leaky air lock or dust discharge valve causing
filter overload.
Moisture-laden bags.
Excessive dust in the clean air plenum (from a
previously leaky bag) often impregnates the
bags in the reverse direction.
Static electricity.
Bags improperly installed.
Loose bag clamps.
Torn bags or holes in bags.
Vacuum producer.
High differential pressure.
Blockage in system.
Leaking duct work, access doors, discharge
valve or airlock.
Improper duct size or run size.
Poor system design.
Faulty or too small compressor or too small
service pipe.
Pipe leaks.
Material build-up in hopper.
Incorrect bag cage installation allowing friction
between outside elements and housing.
Abrasion caused by impingement of high velocity
particles.
Bag cleaning too frequent.
Defective diaphragm valve.
Defective Sequencer.
Faulty wiring or improper air line connection.
Corrective Action
System design or leaks in system.
100 to 125 psi is required. Air should be clean
and dry.
Reduce vacuum with blast gate located on vacuum
producer discharge.
Is air on? Check air line installation at separator.
Check for moisture in compressor air lines.
Check operation of air dryer. (moisture in line)
Repair or replace defective parts or entire unit.
Speed-up airlock rotation.
Run the cleaning mechanism without moving air
through the filter unit and eliminate moisture.
Check compressed air dryer.
Check filter bags clean or replace defective bags
and clean out plenum. Remove and dry clean
bags.
Grounded bags. (Special order only.)
Check bag installation and re-install, if neces-
sary.
Tighten clamps.
Repair or replace bags.
Check direction of vacuum producer rotation.
See above instructions for high differential pres-
sure.
Remove blocking material.
Repair or replace seals.
Replace with original design specification.
Check against original design specifications.
Replace defective parts or use larger compressor
or install larger pipe line.
Repair and reseal connections.
Check build-up of material in hopper. Check air-
lock operation – it may leak.
Make sure filter bag cages are installed vertically
and not touching other bags or housing.
Reduce air flow-through filter. Separator too
small, need larger.
Slow down backwash cycle. NOTE: Contact
Service or Engineering Departments for Special
Problems.
Check and replace valve.
Consult Factory.
Check installation and start-up instructions.
3 6