ALmix Hot Mix Storage Silos | Overview

From the bottom up, our hot mix storage silos are engineered to give our customers the highest quality storage solutions the market. As a standard, your ALmix silo is built to conditions of Seismic Zone IIA and a 150 mile/hour wind velocity. Designs are available to Seismic IV conditions and skid mounted silos are available where soil conditions allow. We can provide professional engineering services to design your footings based upon your soil conditions. And, when it comes time to install your silo system, our team of field service technicians is available to accomplish the job promptly and within budget.

Strength is derived from structural steel legs and frame supports house the 1/4-inch, 100% double welded silo tube. Silo walls are insulated and covered with pre-painted aluminum sheeting to keep heat loss at a minimum. Silo top decks are insulated with 10 inches of high-density insulation and covered with diamond decking, toe kicks and OSHA approved hand rails. A caged ladder is provided to from top to access bird’s nest on the main drag. Fully lined batchers are provided to collect mix and discharge into the silos while safeguarding against mix segregation.

Versatility begins with capacity selection. Our storage silos are offered in the following sizes:

• 100 ton

• 150 ton

• 200 ton

• 240 ton

• 260 ton

• 300 ton

Insulation packages are offered in 3-inch, 4-inch and 6-inch sizes. Silo cones may be heated electrically or with hot oil. Long term storage seals are offered where market or environmental conditions mandate. Versatility is also offered in your loadout selection with truck scale, weigh batcher or load cell mounting options available. Finally, storage silo quantity and configuration options are virtually limitless. Our modular design allows you to plan your company’s surge/storage system with the growth of your business firmly in mind.

CLAMSHELL GATE: Each ALmix storage silo features an independently driven remotely controlled clamshell type main gate, fully insulated against heat loss and located within main frame to substantially reduce wind chill. The Double clam shell gate doors are operated by two air cylinders and load material from the 30 inch silo opening allowing efficient flow and quick loadout. These gates are designed to automatically close in the case of a power failure. A low pressure safety switch is provided to automatically close the main gate if system air pressure drops below 70 psi.

DRIVEWAY AND TRUCK SCALE: The silo support frames are fabricated from 24-inch wide flange beams supported on four wide flange beam legs.  The leg frame includes square bearing pads and cross bracing. A low profile truck scale can also be provided. The scale features load cells with a summing box is connected to the ALmix Insignia Control System (ICS) to provide automatic silo loadout and ticket printing. 

OPTIONAL BLUE SMOKE CONTROL: Ductwork connecting the silo tops and cross drags to the main drag conveyor and to the silo loadout tunnel is used to direct hydrocarbons to the “blue smoke” baghouse. This baghouse is a pulse-jet style fabric filter collector to collect and filter out “blue smoke” from the silo and silo drive-thru area. The drive-thru is enclosed and contains collection hoods on each end.  

ALmix drag conveyors are renowned for their heavy design, durable liners, and abundance of features designed for today’s plant personnel.

ALmix main drag conveyors are constructed from the highest quality structural steel available. Higher capacity drag conveyors are constructed from two pre-cambered W36-135 bridge beams. They are engineered to run at a 50-degree incline for high efficiency and low abrasion. Conveyor floor lining consists of a 3/8-inch subfloor featuring bolt-in 1 inch thick Ni-Hard castings which incorporate 4 inch high side liners. Massive head and tail shafts, segmented sprockets and 6-inch pitch drag chain with AR-360 slats are all standard features. All electrical and air connections are pre-plumbed to the lower section of the drag for ease of installation. A VFD drive is available to reduce component wear.

ALmix Drag Conveyors | VFD Control

ALmix offers an optional VFD to control the speed of each drag conveyor. The ability to control the speed of the inclined drag slat conveyor allows for a reduction in conveyor wear by allowing the conveyor to be run at slower speeds during slower production runs, (not running it at 100% all the time). Slowing the main drag to match the plant production rate also maintains the level of mix in the slats, thereby maintaining mass and heat as mix is transferred into the storage silos.

Download the Hot Mix Silo Brochure

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