Asphalt Batch Mix Plant VS Asphalt Drum Mix Plant

Asphalt batch mix plant and asphalt drum mix plant are different in many aspects,ranging from working principle,equipment structure,finished mixture to the price of asphalt plant for sale.If you want to buy a set of asphalt plant,it's supposed to be first question you must give much consideration. Once you make a decision between asphalt batch mix plant for sale and asphalt drum mix plant for sale,other issues will follow.

There are two kinds of asphalt plants, asphalt batch plant and asphalt drum plant. The former produces finished mixture in batches with a short interval; the latter can continuously produce finished mixture without interruption. Therefore, in some countries or regions, asphalt batch plant is also called the intermittent asphalt plant, and asphalt drum plant is also called the continuous asphalt plant.

How do they mix? What are the differences in the finished mixture they produce? Which projects are they suitable for separately? What is the difference in price of them? this article will give you a detailed explanation.

The Differences Between Asphalt Batch Mix Plant and Asphalt Drum Mix Plant?

1.Working Principle

①Asphalt Batch Mix Plant

● Video Presentation

3D Display Video Of Mixing Process of Asphalt Batch Plant

3D Display Video of Mixing Process of Asphalt Batch Mix Plant

● Process Flow

Process Flow of Asphalt Batch Plant

Process Flow of Asphalt Batch Mix Plant

● Instruction

After being poured into suitable hoppers according to the particle size, the cold aggregates are conveyed by a conveyor belt to a vibrating screen, where the cold aggregates with particle size larger than 4 cm are filtered out, and other cold aggregates are sent to the drying drum by a diagonal belt conveyor. Hot aggregates enter the elevator from the burner end of drying drum after being dried and heated. With its help, hot aggregates reach the vibrating screens. Depending on the size of the mesh, hot aggregates are sieved to different silos. Through accurate weighing, the hot aggregates in different silos are batched into the mixer according to the ratio designated ahead. At the some time,mineral powder also falls from the screw conveyor, and the heated liquid bitumen also sprays from the nozzle. After mixing, finished mixture is produced one batch by another.

②Asphalt Drum Mix Plant

● Video Presentation

3D Display Video of Drying, Heating and Mixing Process of asphalt Drum Plant

3D Display Video of Drying, Heating and Mixing Process of asphalt Drum Mix Plant

● Process Flow

Process Flow of Asphalt Drum Plant

Process Flow of Asphalt Drum Mix Plant

● Instruction

Drying drum of asphalt drum plant has functions of drying, heating and stirring. The cold aggregates go into the non-stop rotating drum from the hoppers via conveyor belt, in which cold aggregastes are dried and heated in sequence. The nozzle in the drying drum continuously sprays the bitumen, and mixture comes out unintermittedly with the drum rotating.

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2.Equipment Structure

①Graphical Representation of Systems of Asphalt Drum Mix Plant and Asphalt Drum Mix Plant

Systems of Asphalt Batch Mix Plant

Systems of Asphalt Batch Mix Plant

Systems of Asphalt Drum Mix Plant

Systems of Asphalt Drum Mix Plant

②The Differences in Devices of Asphalt Batch Mix Plant and Asphalt Drum Mix Plant

  Asphalt Batch Mix Plant Asphalt Drum Mix Plant
Cold Aggregate Weighing Device No No/Belt Weighing Device(Rough Weighing)
Powder Bin Yes(Add Additives Such as Mineral Powder and Fiber) No
Powder Weighing Device Yes No
Screw Conveyer Yes No
Bitumen Weighing Device Yes No
Variable Frequency Motor Driving Bitumen Pump No Yes
Vibrating Screen Yes(4—5 layers) No
Mixer Yes No
Dust Collector Volute Dust Collector + Baghouse Dust Collector Cyclone Dust Filter(Capacity≤40t/h)
Water Dust Collector(Capacity>40t/h)

③Instruction

  • After being heated, cold aggregates must be accurately sieved and weighed before entering the mixer. Hence it is not necessary to add a weighing device to the feeding system of asphalt batch plant.
  • Asphalt drum plant doesn't have a mixer, and the powder cannot be sufficiently stirred like it's in asphalt batch plant, so no powder can be added.
  • As to asphalt batch plant, before spraying in the mixer,the bitumen must be accurately weighed; Asphalt drum plant has no such a bitumen weighing device, but it can use bitumen pump that can be driven by variable frequency motor to control the amount of bitumen added during mixing process.
  • Asphalt batch plant has a precise weighing system, which makes it able to monitor the oil-stone ratio in real time and change oil-stone ratio at any time; Asphalt drum mixing plant does not have an accurate weighing system, and oil-stone ratio cannot be monitored in real time.
  • The environmental protection performance of asphalt batch mix plant is higher than that of asphalt drum mix plant.Because it is ordinarily equipped with one volute dust collector and one baghouse dust collector. You can choose to add a baghouse dust collector if local environmental requirements are higher.
  • Asphalt batch mix plant can add admixtures such as fibers, foams, rubber particles,etc.to the components through the admixture system,which makes itself meet more different road paving requirements, so it has wider applicability.

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3.Finished Mixture

①The Difference in Finished Mixture of Asphalt Batch Plant and Asphalt Drum Plant

 
  Asphalt Batch Mix Plant Asphalt Drum Mix Plant
Capacity(t/h) 40—400 20—100
Applicable Project Large and Medium Small
Suitable Pavement High-level Roads like Highway Low-grade Roads in Villages and Towns

②Instruction

  • The capacity of asphalt batch plant is usually large, suitable for large and medium-sized projects. The finished mixture is of high quality and suitable for paving high-grade roads, such as highways.
  • The capacity of asphalt drum mix plant is relatively small and can only be used for small projects. Due to the lack of accurate weighing, no powder can be added, oil-stone ratio cannot be accurately changed, the quality of finished mixture is comparatively low, only suitable for low-grade roads.

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The Advantages and Disadvantages of Asphalt Batch Mix Plant and Asphalt Drum Mix Plant

Both have their own advantages and disadvantages. Asphalt batch plant is widely used now due to good quality of finished mixture, while asphalt drum plant has high cost-effectiveness, and can be applied to a large number of low-grade roads in towns and villages.

  Asphalt Batch Mix Plant Asphalt Drum Mix Plant
Advantages Cold Aggregates Undergo High Precision Screening and all Components are Acurately Weighed Compact Structure, Convenient for Transportation and Relocation
Able to Add Various Admixtures Less Land Footprint and could be Located in Narrow or Confined Areas
Monitor the Oil-stone Ratio in Real Time and Change Oil-stone Ratio during Operation Relatively Low Operating Cost
Adopt Pulse Baghouse Dust Collector, Environmental Performance is fine Low Investment Cost and High Cost-effectiveness
High Degree of Intelligence in Control System Particularly Suitable for Countries and Regions that are Rapidly Developing Rural Transport
High Quality of Finished Mixture  
Applicable to Large-scale and High-grade Road Construction Projects
Disadvantages More Land Footprint, Small Ppace is not Suitable No Acurate weighing and Precise Screening
High Initial Investment Can't Add Various Admixtures
High Maintenance and Operation Cost Unable to Monitor and Accurately Change Oil-stone Ratio during the Operation
Complex Structure, not Easy to Master Quickly Simple Dust collectors and Relatively Less environmental-friendly
  Low Quality of Finished Mixture

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Price Comparison of Asphalt Batch Mix Plant and Asphalt Drum Mix Plant

Liaoyuan Machinery has been dedicated to research and produce a full range of asphalt mixing plants for more than 20 years. It has become a leader in China's road construction machinery industry. Liaoyuan Machinery is also the directory membership unit of China Construction Machinery Industry Association. Its products' technology is leading and performance is stable. It has passed ISO9001 and ISO14001 quality system certification as well as the European CE certification and Russian GOST certification. Due to the high cost-effectiveness, more than 400 asphalt mixing plants of Liaoyuan Machinery have been exported to more than 80 countries and regions. then What is the price of each type of asphalt batch plant and asphalt drum plant Liaoyuan Machinery manufactures? See the table below for details:

Category Series Model Price
Batch Type Asphalt Batch Plant LB Series LB700、LB1000、LB1200、LB1500、LB2000
LB2500、LB3000、LB4000、LB5000
$135,000 Above
Environmental Asphalt Plant ELB Series ELB700、ELB1000、ELB1200、ELB1500、ELB2000
ELB2500、ELB3000、ELB4000、ELB5000
$152,000 Above
"Asphalt Batch Mixing Plant JNW Series JNW180、JNW220、JNW260、JNW340 $500,000 Above
YLB Mobile Asphalt Plant YLB700、YLB1000、YLB1500、YLB2000 $182,000 Above
QLB Mobile Asphalt Plant QLB10、QLB15、QLB20、QLB30
QLB40、QLB60、QLB80
$59,000 Above
Asphalt Recycling Plant RLB Series RLB60、RLB80、RLB120、RLB160 $182,000 Above
Drun Type DHB Asphalt Drum Mixing Plant DHB20、DHB40、DHB60、DHB80、DHB100 $70,000 Above
MDHB Asphalt Drum Mixing Plant MDHB20、MDHB40、MDHB60、MDHB80、MDHB100 $70,000 Above
SLB Asphalt Drum Mix Plant SLB8、SLB10、SLB15、SLB20、SLB30 $23,000 Above

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How To Make a Choice Between Asphalt Batch Mix Plant and Asphalt Drum Mix Plant?

  • If the project is large in scale, high in grade, or needs to change oil-stone ratio in operation, asphalt batch mix plant is supposed to be a good choice.
  • If the project scale is small, the grade is low, and environmental protection requirements are not very high, asphalt drum mix plant is probably the best choice.
  • Take project requirements and project budget in consideration and select asphalt batch mix plant or asphalt drum mix plant customized for you. For example, you can demand to add one more baghouse dust collector to the asphalt drum plant or add recycling and utilization system to asphalt batch mix plant, etc.

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