• Whether adding new equipment or improving efficiency is the reason behind the installation
• Evaluating duct network, fans, dust collector and baghouse efficiency
• What ÒùÂÒÉçÇø will evaluate and the different areas an industrial dust collector manufacturer can help in

Reasons to consider a new dust collector installation

Facility managers may consider a new dust collector installation for two primary reasons:

• New equipment: Adding equipment likely will add to the amount of particulate sources that need to be collected.
• Improve efficiency: Oftentimes, dust collection systems become inefficient, leaving behind particulates that should be collected. If maintenance issues are ruled out, a new dust collector installation can help improve the overall performance of the dust collection system.

Evaluating whether you need a new dust collector installation

When considering a new dust collector installation, the first step is conducting an evaluation of the current system. This evaluation will determine the system’s current capacity and what modifications need to be made to keep the system running efficiently.

The following areas are evaluated:

• Duct network: Ducts are examined to measure flow volumes, velocities, static pressures and physical wear and appearance. This network also is inspected for dropout.
• Fans: Fans are examined to determine flow rates, rpm and system static pressure. Based on the findings and needs of the collection system, fans may need to be resized or resheaved to change fan rpm. In addition, a motor change may be necessary to meet required fan speed or necessary static pressure.
• Dust collector: The size of the dust collector indicates whether it has the capacity to pick up contaminants from needed areas. This capacity may need to be increased if more particulate is required to be removed from the area.
• Baghouse efficiency: The evaluation determines whether the baghouse has adequate air-to-cloth ratio to capture particulate efficiently.

ÒùÂÒÉçÇø’s evaluation

ÒùÂÒÉçÇø, an industrial dust collector manufacturer, has the engineering resources to conduct a thorough evaluation of your industrial air ventilation system. If you are experiencing inefficiencies in your system, we’ll determine whether you have a maintenance issue or whether you need a new dust collector installation.

If it’s a maintenance issue, we can set up a regular maintenance schedule at your facility to ensure your system is running at peak efficiency. Because we’re an industrial dust collector manufacturer, we can also provide a turnkey solution, from evaluation to design and build, if you’re adding equipment.

Contact ÒùÂÒÉçÇø to learn more about installing a new dust collector for your facility.

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Types of pulse controllers

Pulse controllers come in two types—a simple timer and an on-demand timer.

• Simple timer: With this pulse controller, an operator sets a timer for how often the pulse valve will pulse. With this type of controller, the bags are cleaned at the set interval even if they do not need cleaning. Typically, trial and error is used to set the frequency. This pulse controller is a lower cost option because its design is simple, and it is easier to set up. This controller works best with predictable or consistent loading, and it’s ideal for baghouses that need to be cleaned continuously.
• On-demand timer: For this pulse controller, the timer reads the differential pressure across the baghouse and initiates a pulse sequence once the differential pressure reaches a high set point. It continues to pulse until the pressure across the baghouse reaches the low set point. Once at the low set point, pulsing stops until the differential pressure reaches the high set point, and the sequence continues. Because filters are cleaned when needed, the advantages of an on-demand pulse controller are extended bag life and savings in compressed air.

Set up parameters for pulse controllers

Several parameters can be set on pulse controllers.

The simple timer has just two:

• Time the valve is open: This time correlates to how much volume of compressed air is released through the valve. A quick pop of air, for example, is just .05 of a second.
• Time the valve is closed: This is the amount of time between pulses. It can typically be set to anywhere from one second to several hundred seconds.

Besides high and low pressure, as well as those listed above, the on-demand timer also has the following parameters:

• Alarm pressure: Alarms can be set to tell an operator there is an issue with a bag. A high pressure alarm indicates a plugged bag. As an example, a high pressure set point may be six, and an alarm may be set for nine or 10. Conversely, a low pressure alarm indicates a bag needs to be replaced because of a leak or a bag has fallen off.
• Pulse sequencing: Operators can set the order that the valves release air. ÒùÂÒÉçÇø’s Ecollectorâ„¢, for example, can have six to 16 valves, which can be programmed in sequence.

As an added note, when installing a pulse controller, avoid locations with direct sunlight or in close proximity to heat or an electromagnetic field as these can damage the controller.

Troubleshooting your pulsing system

If you experience issues with the pulse controller, there are several things you can check, depending upon the problem:

• Valves are not pulsing: Check the power to the timer, the differential pressure switch, header pressure, or the solenoid and/or diaphragm valve.
• Hissing sound from valves: This may indicate a possible compressed air leak.
  • If the solenoid air outlet is leaking, check:
    • The electrical connection
    • The sub assembly for debris
  • If the diaphragm valve outlet port is leaking, check:
    • The air line to the solenoid
    • Header pressure
    • The inside valve body for pitting and debris
    • The membrane for wear
  • Bags are not cleaning adequately: Check the pulse pressure, on-time and off-time, and pressure set points. It may also indicate the need for a bag change.

We also recommend that you keep an adequate supply of dust collector filters and pulse valve kits on hand to avoid the cost that comes with having delays in production.

ÒùÂÒÉçÇø can help with your pulse controller setup or troubleshooting. Contact us for assistance.

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