The asphalt production process starts with a precise cold feed system.
ALmix Cold Feed Systems | Overview
The blending process at every asphalt plant begins with a set of cold feed bins. After decades of building these bins, we’ve learned there is no substitute for a massive design. Our bins are made from the highest quality steel to withstand the constant abrasion of aggregates as well as the occasional front-end loader collision. Our bins have been engineered with the most advanced technologies allowing your plant to be both precise and safe.
We don’t stop at just Cold Feed Bins; ALmix provides a full line of virgin material processing products, including transfer conveyors, weigh conveyors, and screening solutions–all available in portable or relocatable, skid-mounted designs that are engineered to withstand the test of time.
No matter the size of your operation or the complexities of the market you serve, ALmix will customize the cold feed system your operation deserves.
ALmix Cold Feed Bins | Configurations
ALmix offers multiple cold feed bin configurations to fit any contractor’s needs. Choose any number of bins available in four different compartment sizes (8’ x 12’, 10’ x 14’ or 12’ x 16’) to match the needs of your operation.
ALmix Relocatable (Skid-Mounted) Cold Feed System
ALmix Portable Cold Feed System
ALmix Cold Feed Bins | Features
DURABLE BINS
All of our bins are constructed from 1/4” steel plate and top lip and mid-bin sections are reinforced with 3/8” bent steel plate for added strength and durability. Each bin gate is outfitted with a heavy duty screw jack for adjusting the gate opening as well as lockable gate positions with index. Bin bottoms are designed with self-relieving throats aid in material flowability and reduce drag on the feeder sides. Rotary electric vibrators to prevent material bridging come standard on sand bins. Each bin can be fitted with a grizzly constructed from 1/2-in. x 6-in. flat bar to reject oversized materials and to provide a smooth surface for the loader bucket.
CLEAN GEARBOX DESIGN
Each bin feeder incorporates a direct-connected helical gearbox through a fully digital AC flux vector drive. Direct connected gearboxes remove the need for sheaves, drive belts and the associated mesh guarding. The flux vector drive is capable of producing 100% torque at zero speed without overheating.
DETAILED BIN FEEDERS
To start, our bin feeders use troughing idlers to prevent material spillage without the need for additional rubber flashing. To alert the plant operator if material ceases to flow from any material bin, each bin feeder is equipped with a material flow detector and the bin feeder tail shaft is equipped with an optical encoder which allows automatic feeder control through the ALmix Insignia Control System. The bin feeder idlers and tail pulleys are guarded with perimeter-reinforced wire mesh guarding. All grease zerks are extended beyond the guarding for easy access.
Additional Cold Feed Bin Features
The following advanced features are available on both portable and relocatable cold feed bin systems.
Bin extensions
Bin dividers
Air cannons
Adjustable depth control gates
Self-relieving feeder throats
Wire mesh guarding
Cable Trays
Walkways
Grizzlies
Built-in scalping screens
Moisture probes
Bin level indicators
Built-in retaining walls
Bulkheads (available in full height)
Bin vibrators
Bin covers
ALmix Virgin Material Processing | Overview
Material handling is an often overlooked phase of the asphalt production process. At ALmix, we understand that it’s more strategic than just moving material from A to B. This is where your material is screened and weighed. An inadequate conveyor translates into an imprecise belt scale and varying AC contents. That’s why, whether you buy your plant skid mounted or portable, we use rigid deep truss frame conveyors complete with gravity take-ups. Walkways on one or both sides may be added to make conveyor and belt scale maintenance easier. Moving pieces are guarded with wire mesh and optional emergency pull cords are provided so that safety is not compromised. Test weights and sampling systems may be added to meet any specifications or requirements.
ALmix Virgin Material Processing | Screening & Weighing
Rugged single-deck or double-deck scalping screens with remote deck selection and full bypass are available for any size operation. Where screening demands are more intense, we offer individual screens that are built-in for each belt feeder, (see above in Cold Feed Bin Features). For highly-portable plant needs, the virgin material screening and weighing systems can be built into one, portable conveyor unit.
ALmix weigh conveyors are powered by weigh idlers built into the conveyor system. Guarded by wind guards, these weigh idlers provide accurate weighing of virgin materials as they are transported to the drum for drying. Remotely-operated test weights allow the performance of the Illinois 6-Minute Test from the control house with ease through the use of the ALmix Insignia Control System (ICS).
ALmix Virgin Material Processing | Transfer Conveyors
When needed, ALmix can customize transfer conveyors to fit the unique layout or geographic footprint of your plant. These conveyors are engineered with all of the same rugged features found throughout the ALmix material processing portfolio, including availability in both fully-portable and relocatable skid-mounted designs.