Asphalt Drum Mixers Touts Recycle Systems

Asphalt Drum Mixers Inc. (ADM), Huntertown, Ind., is offering four models of portable and stationary recycling systems to improve the cost-efficiency of asphalt plants.

According to the company, its recycle systems allow plants to use milled material in hot mix asphalt (HMA). Since recycled asphalt pavement (RAP) is cheaper than virgin aggregate, ADM says the result is a less expensive finished product that maintains the quality of a pure virgin aggregate mix.

ADM’s recycle bins feature a 15-ton capacity and are continuously welded at the seams. The bins contain angle irons and midsection stiffeners for reinforcement; and sloped sidewalls to prevent material from plugging or bridging, according to the company. A tapered discharge opening leads to the direct-drive belt feeder with a 5-horsepower motor, multi-ply belt, self-cleaning tail pulley and adjustable skirt boards.

To transfer RAP from the bin, ADM says the recycle system includes a weigh conveyor that features a channel frame and wind shroud protection for accurate weighing. The conveyor is 2 feet wide and, depending on the model, between 45- and 65-feet long. It introduces RAP into the dried aggregate mix after the heating process, according to the company. Based on conditions and type of plant, up to 50 percent of the HMA can contain recycled pavement.

An optional lump breaker is available for ADM’s recycling systems to break down large pieces of RAP into a useable size. It features an adjustable steel breaker plate and replaceable tungsten-tipped teeth, and is powered by a 30-horsepower motor with an open-mesh covered V-belt drive. Single- and double-deck scalping screens are also available to ensure oversized material does not enter the aggregate mix, ADM says. Other options include air cannons, grizzlies, bin extensions, adjustable legs with sand shoes and a skid with bolt-on support legs.

More information is available at www.admasphaltplants.com.