An asphalt plant dryer (dryer drum) is a piece of equipment used in the asphalt plant process. This dryer removes moisture from the aggregates, ensuring they dry properly for the asphalt plant. Asphalt plant dryers are fed by dosing the aggregates in different fractions and are used to remove moisture.
Some asphalt plant dryers feature forged steel rings and are seamless. They can also be delivered to customers with quality certificates. Dryer burners can be supplied by world-renowned brands. Dryer units can operate with a soft starter to avoid problems under load.
Dryers are designed to provide high thermal efficiency, low fuel consumption, effective use of heat, and high mechanical stability in the asphalt plant process. This equipment plays an important role in asphalt plant production.
Asphalt Plant Dryer
After the aggregate is dosed in the asphalt plant, the dryer removes moisture from the aggregate and heats it to a specific temperature. It is one of the most important pieces of equipment in an asphalt plant.
Asphalt plant dryers consist of the following basic components:
- Burner: This is the device used to heat the air in the dryer. Fuels such as natural gas or fuel oil are generally used.
- Dryer flights: These are the flights that lift and shower the aggregate so that it is heated. Flights are usually made of steel.
The operating principle of asphalt plant dryers is as follows:
- The fire in the burner heats the air sent into the dryer drum.
- The heated air passes through the aggregate, heating it and removing moisture.
- The heated and dried aggregate passes through the dryer and is sent to the screen using the elevator.
The performance of asphalt plant dryers depends on the following factors:
- Burner capacity: The burner capacity determines how much air it can heat in the dryer.
- Size and shape of dryer flights: The size and shape of the flights determine how well the aggregate is heated and dried.
- Dryer rotation speed: The rotation speed determines how quickly the aggregate passes through the dryer.
Asphalt plant dryers play an important role in asphalt production. They improve the quality and durability of asphalt by reducing the moisture content of the aggregate. They also reduce the amount of fuel used in asphalt production, ensuring an environmentally friendly production.
Asphalt Plant Dryer Features
- Our tire rings are made of forged steel. Thanks to a special forming method (ring rolling), they are seamless and have no joints.
- Our rings can be easily removed and installed thanks to their bolted connection plates.
- The rings are rotated with specially manufactured dryer drive rollers (optional) made of KESTAMID material, which is non-corrosive and can operate in all weather conditions.
- Dryer drive rollers made of cast iron or 4140 steel are available upon request.
- The two thrust rollers in the system limit the axial movement of the dryer.
- The special flight design from the dryer inlet to the discharge neck ensures smooth heating of the aggregate, efficient and economical combustion of the burner, and easy extraction of dust generated within the dryer.
- Highly efficient, economical, and trouble-free heating with our own dryer burners or burners purchased from world-class quality burner brands. These fully automatic burners can operate with gaseous fuels such as natural gas, liquid fuels such as fuel oil or diesel, or a combination, and comply with TSE and CE standards.
- Body and flights manufactured from wear-resistant and heat-resistant sheet metal.
- Four-roller drive. It is driven by a soft starter or speed controller, ensuring easy and smooth starts under load.
- Maximum energy savings are achieved by insulating with 50 mm rock wool and stainless (chrome) sheet metal.
- Long-lasting operation is ensured with high-quality reducers and electric motors.
- The bearings and bearing housings used are from world-renowned brands, guaranteeing maximum operating life.