4.2 Optimizing Your Collector's Performance
Outlined below are some basic collector operating parameters for pulse jet collectors using elements with Non Woven Spun Bond (all finishes) or Conventional Felted Media:
> > >
50 PSI - 80 PSI 20 seconds* Maximum 200 milliseconds
Pressure
Frequency (off time) Duration (on time)
Reservoir:
Requires an unrestricted air supply at least the diameter of the blowpipes and needs to be big enough for valveʼs demand. Ideal conditions will leave the reservoir at 85% of the operating P SI aft er firing. Needs to be clean and dry, which could be accomplished with an air dryer. In-line traps/ separators can catch a lot of problems in the air supply prior to getting to the collector.
Cleaning Air:
*Pulse Frequency: Frequency should be adjusted to balance the collector's delta P and should be monitored frequently during the first se ven days aft er start up. Pulsing frequency can never be any faster than the reservoir recovery to operating PSI.
Pulse Sequence:
Needs to be staggered to maximize the distance between the newly cleaned row and the next row to be pulsed. Should not be used for storage. Evacuation equipment (rotary valves, screw conveyors, etc.) should be sized to unload hopper before accumulation occurs. Units with slide gates should be left open and equipped with drum adap ers. To change your filters, push the red handle and the filter will drop about an inch. Install the new filter, then pull the red handle and the filter will lift up in o position. Be careful not to crush the new filter by putting too much tension on the clamp. If the new filter doesnʼt seem to fit, you can adjust the metal plate the filter sits on by loosening the nuts on the all-thread and then moving the plate up or down.
Hopper:
Changing Filters :
Use the following guide to program the Dwyer Timer Board:
1. Control panel power indicator light should be illuminated blue. 2. Press fan start button and allow the fan to come up to speed. 3. Turn on the “Filters” toggle switch. This will turn on the Dwyer Timer Board. 4. Once the timer board is on push the “Select” button on the timer, “Last Output” LED will light up. 5. Use the “Up” or “Down” button to adjust the number on the display to equal the total number of pulse valve you have on your collector, then press the “Select” button and the “Time Off” LED will light up.
24
Made with FlippingBook - professional solution for displaying marketing and sales documents online