An asphalt plant elevator is equipment used to transport materials from one point to another within the asphalt plant. It is typically used to transport heated aggregate to the screening unit.
Asphalt plant elevators are manufactured in two types: chain-type or belt-type. Chain-type elevators are the more commonly used type. The chains are connected to a mechanism that carries the buckets and moves them up or down.
Belt-type elevators are less common than chain-type elevators. The belts are connected to a mechanism that carries the buckets and moves them up or down.
Asphalt plant elevators consist of the following components:
- Buckets: Buckets are the components that carry the material and move it through the elevator.
- Chains or belts: Chains or belts are the mechanism that carries the buckets and moves them through the elevator.
- Motor: The motor powers the chains or belts and moves the material through the elevator.
- Drive system: The drive system is the mechanism that transmits power from the motor to the chains or belts.
- Control system: The control system is the mechanism that controls the operation of the elevator.
Asphalt plant elevators play an important role in asphalt plant production. By ensuring the efficient and safe transportation of materials, they make asphalt plant production more efficient and safer.
All equipment used in asphalt production works as a whole; however, the Elevator, which ensures the safe and uninterrupted transport of aggregate from the dryer to the screening unit, is one of the most critical components in this system. The Elevator plays a crucial role in maintaining production efficiency, transferring material at the right speed and temperature, and maintaining a balanced flow within the system. Therefore, choosing a durable, high-capacity, and long-lasting Elevator has become essential in modern asphalt plant installations.
What is an Asphalt Plant Elevator?
The equipment that vertically transports the hot aggregate from the dryer in the asphalt plant to the screening unit is called an Elevator. The elevator consists of a combination of conveyor chains or belts and buckets. The buckets collect the hot aggregate from the bottom and discharge it into the screening unit at the top. This process requires a structure that is resistant to high temperatures and abrasion. Therefore, the Elevator is an indispensable conveying mechanism in asphalt production, thanks to its mechanical strength and high heat resistance.
How Does an Elevator Work?
After leaving the dryer drum, the hot aggregate flows into the elevator inlet hopper. From here, the buckets begin transporting the aggregate:
Filling the buckets: Hot aggregate is collected by the buckets in the lower section.
Vertical transport: Aggregate is transported to the upper section by a chain or belt system.
Discharge: The aggregate is transferred from the upper flow channel to the screening unit using the Elevator.
Continuous cycle: This transport continues uninterrupted, and the production flow remains stable.
This engineering design ensures trouble-free conveying performance even in high-tonnage production.
What to Consider When Choosing an Asphalt Plant Elevator?
Choosing an Elevator with the right features is crucial for quality production. The following criteria should be considered:
Durable chain or belt structure
Wear-resistant steel buckets
Resistance to high temperatures (150–200°C)
Dust-tight casing design
Easy maintenance and service
Noise-reducing design
A correctly selected Elevator helps the plant operate efficiently for many years.