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Item: Aeration Lump Trap

DCL's Aeration traps are ideal for handling material with lumps or other potential foreign materials. Such lumps are generally created in the silo by moisture and are typically unacceptable for loading in your customer’s vehicle. Aeration traps are also ideally suited to prevent foreign materials such as nuts, bolts, or gloves from processing downstream.

The lump trap eliminates large lumps by creating a gravity air trap inline with an aeration conveyor. This is done by passing low-pressure air through an overlapping configuration of porous membrane media and into the bed of the material being handled. Heavy lumps fall and are caught in the bottom of the lump trap which automatically empties using a level sensor and a series of slide gate valves.

You can handle a large variety of materials with aeration conveyors regardless of their abrasive nature or bulk density. The criteria are particle size, moisture content and temperature. Generally a product should have a particle distribution of 100% through a 20 mesh screen. Moisture content should be below 1% and temperature can not exceed 1200 degrees Fahrenheit [649° C].

DCL can perform a product compatibility test for you to determine the optimum conveying angles and aeration volumes for your application. We’ll need a minimum product amount of 2 cubic feet [0.07 m³] to conduct a proper test.

We offer a selection of aeration lump traps from 6 inches [152 mm] wide up to 36 inches [914 mm] wide and conveying capacities up to 1000 cubic feet per minute
[28.3 m³/min]. Lump traps also are available in a high-top or low-top design, offering you the choice of maximum flow rate or minimum head room that best suits your application.

A choice of construction materials allows you to effectively handle all types of products – fine, abrasive and corrosive – and difficult dusty or sanitary applications. You also have a choice of electrical operations that allow installation in almost any environment; NEMA 4, NEMA 4X, NEMA 7, NEMA 9, 120V/220V control, 460V/415V power, etc.




Dust Control and Loading Systems, Inc.


Aeration Conveying Brochure
(PDF, 925KB)

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