Continuous asphalt mixing plant, also called asphalt drum plant, is engineered to produce the asphalt mix through a continuous process. That is, the heating and drying of the aggregate and the agitation of the mixture are continuously performed in the same drum. It also requires the use of silos for temporary storage before transporting the mix to the paving site. Due to the relatively small output capacity, the continuous mixing plant is commonly used for small-scale projects.
Continuous Asphalt Plant Configuration
The drum plants come in several different configurations, all depending on how the aggregate flows in relation to the hot air.
In parallel flow plants, the aggregate flow is parallel to the hot combustion production flow. For this reason, it is not as good as counter-flow type in terms of pollution control and fuel saving. This type of plant has simple design, and is ideal for simple job.
In counter-flow plants, the aggregate flow is opposite to the direction of air flow. It provides better pollution control, fuel saving and superior quality of hot mix.
In addition, according to the transportation method, it can be divided into stationary and mobile plants.
Stationary asphalt plant: the equipment operation site is fixed. It is ideal for concentrated projects and urban road construction.
Mobile asphalt plant: it can be transported easily with the construction site, suitable for county and township roads and low-grade road projects.
Pros And Cons For Using This Type of Asphalt Plant
- Modular structure, easy installation, transportation and relocation
- Low investment cost, ideal for low-grade roads construction in rural areas
- Small footprint, ideal for use in narrow spaces
- Relatively low operating costs
- No accurate metering, no screening of aggregate
- Cannot monitor and accurately change the bitumen-aggregate ratio during operation
- Cannot add powder and various additives
- Simple dust removal facilities
- Relatively low quality finished product
Applications of Continuous Asphalt Mixing Plant
The continuous mixing plant is a cost-effective choice for small-scale projects where the grade is low and there are no high requirements for quality. Besides, based on your project requirements and project budget, you can custom design the asphalt plant. For example, adding bag dust removal system to the drum type asphalt plant for environmental protection.
Continuous Asphalt Mixing Plant Specifications
|Effect of De-dusting(mg/Nm3)||Dust discharge concentration≤50(Bag dust)|
|Volume of Cold Aggregate Storage(m3)||4.0m3×4|
|Control Mode||Manually, Semi-Auto/ Auto|
Common Components Of Continuous Asphalt Plant
Cold feed bins – to meter the different aggregates into the drying chamber.
Liquid asphalt storage tanks – storage of the liquid asphalt.
Drum Dryer – for heating and drying of the aggregate through the use of hot air.
Dust collection system – it captures fine sand and dust particles and returns them to the mix.
Storage silos – for temporary storage of the hot mix before transporting to the paving location. They must be insulated and sometimes heated to prevent temperature loss.
Continuous Asphalt Mixing Process
In drum plants, there is no interruption in the production process as the heating and drying of the aggregate and the agitation of the mixture are continuously performed in the drying chamber.
The cold aggregate enters the continuously rotating drum from the batching machine via a conveying belt, and is dried and heated. The asphalt nozzle in the drum sprays the asphalt continuously, and after the two are bonded, the mixing is completed with the rotation of the drum. This series of process is continuously performed in the drying chamber.
Tell Us What You Need
In order to help you select the most suitable and economical asphalt plant for your project, please provide some basic information about the plant you need, such as:
- Output capacity
- Stationary or mobile type
- Raw material
- Fuel: coal, oil or natural gas?
- Dust removal method you prefer
- Whether to add mineral powder
- It is a high or low-grade road construction?
- Your destination
- Other requirements
You can either fill out the contact form or email your inquiry. We will get back to you soon after receiving your inquiry!
Why Choose Aimix
High quality products – we never sacrifice quality for quantity. All our products are ruggedly constructed using high quality components as well as in line with stringent quality standards.
Competitive price – our asphalt plants are competitively priced. Depending on your specific requirements, we will offer a cost-effective solution for your project.
Technical support – we provide any technical service you need and help you design the most suitable plant for your project so as to maximize your productivity and your return on investment.
Perfect service – we offer a wide range of after-sales service. For example, sending our experienced engineers to the job site to guide the installation and commissioning of the plant. We also offer staff training, free technical advisory service and 12-month warranty. Our service is available at 24/7.
Looking for a reliable continuous asphalt mixing plant manufacturer? You can trust Aimix. To learn more, contact us today!