Innovation by Design

 

FOAMED ASPHALT SYSTEM FOR MIXING BARREL DESIGNED FOR PRE-COATED CHIPS

 

The BearCat foaming system installed on an existing batch plant can increase your profits by reducing the amount of asphalt required to pre-coat.

 

Hot asphalt greatly expands when foamed to cover aggregate evenly then shrinks. The result is perfectly covered aggregate without the excess asphalt that forms clumps.

 

 

The spraybar system when mounted in your drum replaces the existing feed pipe. During foaming opperations the asphalt and water is metered by a computerized control panel installed in the control house through an externally mounted asphalt pump.

 

aggregate foaming pre-coat controls

 

The small spread rate required for precoating chips is dificult to control with existing batch plant pumpning systems, thus the reason for the external pump. The external pump is mounted in parralell with the existing system so that returning to normal asphalt production can be a simple twist of a couple valves.

 

foamed asphalt precoat pump

 

The spraybar in the drum is capable of delivering the required asphalt output for normal production.

 

pug mill foamed asphalt spraybar

 

Spraybar shown with guard removed.

 

assembling foamed asphalt plumbing

 

The bar is heat traced using the existing plant hot transfer oil.

 

foamed bitumen spraybar with heat trace