The Modular Cartridge Bin Vent provides excellent air filtration at a low cost. Its modular design and low overall height allows the operator to perform maintenance from the tank deck without tools.
Principle of Operation
While material is pneumatically conveyed into the storage tank, fine airborne particles are trapped by the unit's large cartridge filter. This enables clean air to pass from the tank into the atmosphere.
Timed bursts of air from a compressed air accumulator pulse the cartridge filter, dislodging any fines and returning them to the storage tank.
Materials of construction
Standard materials of construction include carbon steel with an epoxy-coated interior, or stainless steel material contact areas. Stainless steel construction is an excellent choice for abrasive, corrosive, and food-grade applications.
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The plenum features a built-in weather hood and specially designed diffuser which enables each air pulse to clean the entire filter. Unlike other bin vents, no exhaust fan is required.
The air pulse cleaning of the cartridge filter is regulated by the control panel. The panel’s timer board allows easy adjustment of the frequency and duration of each pulse. One controller services up to 6 units. If multiple units are used, the automatic controller pulses one unit at a time, leaving the remaining units on-line for filtration. The interval between cleaning cycles is adjustable to suit the application. All of the solenoids which fire the pulses on command from the timer board are located in the panel which is rated NEMA 4 (standard). Explosion-proof NEMA 9 construction is optional. A spare timer and solenoid are also included with each panel to accommodate the addition of another Modular Cartridge Bin Vent.
The single cartridge filter is constructed of 100 sq. ft. of tough, washable, polyester filter medium for efficient filtration. The cartridge filter hangs vertically and has shallow, open pleats for efficient dust release, even with difficult materials. Each unit can filter 200 to 400 cfm of air, depending upon the application.
Flanged adapter stubs are available to allow the Modular Cartridge Bin Vent to be mounted to the top of an existing storage tank. The standard size is 20-inch diameter.
Mounting on a standard 20-inch diameter tank deck flange, the small modular unit is inexpensive and easy to install.
The quick-release clamp allows easy access to the cartridge filter. Since the height of the unit is less than 4 feet, maintenance is accomplished from the tank deck without tools. In addition, the single-cartridge filter design eliminates installation and service of multiple filter bags.