Pulse-jet cleaning

Fabric filters have had a long history in performing effectively in a wide variety of applications. Common applications using pulse-jet cleaning systems include ... 

Cost estimates are presented below for pulse jet cleaned fabric filters. The eosts are expressed in fourth quarter 1998 dollars. The cost estimates assume a conventional design under typical operating eonditions and do not inelude auxiliary equipment... 

Cartridge collectors perform very effectively in many different applications. Common applications of cartridge filter systems with pulse jet cleaning are comparable to baghouses described earlier. In addition to these applications, cartridge collectors can be used in any process where dust is generated and can be collected and ducted to a central location. 

Figure 5. Automatic baghouse with pulse jet cleaning.

Pulse-jet cleaning (above) uses a controlled blast of compressed air from the primary into the secondary nozzle, which is magnified by induced air being drawn into the bag. The sudden release of air causes the bag to expand fully, throwing the dust from the outer surface. Dislodged dust falls into the collection hopper. At right, types of duty cycles... 

Secondary waste will consist of spent rocket motor bodies and dust resulting from pulsed jet cleaning ofthe particulate filter. The dust from the filter will contain lead from the lead stearate in the propellant. It could possibly be defined as a RCRA hazardous waste, but the motor bodies are not expected to be so defined. Contamination of the rocket bodies with agent is not an issue since the rocket bodies have never been exposed to agent. This is true for any EDT used for Requirement BG-1. 

Figure 3.44 Tubular bag filter with pulse jet cleaning. 1, Clean gas duct ...

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