Vertical Asphalt Melting Device with Stirring Mechanism - High Efficiency from China Suppliers and Factory
Product Description
For a relatively large melting capacity (2–15 t/h), a vertical coil structure is adopted; for a smaller melting capacity (1–2 t/h), a horizontal tube bundle structure is adopted; for a very small melting capacity (test use – 100–1000 kg/h), an electric heating structure is adopted. Continuous melting ensures stable discharge and can operate 24 hours a day without interruption. Indirect heating combined with forced stirring eliminates local overheating and prevents asphalt performance degradation. Built-in slag discharge ensures environmental compliance.
Main Structure
Compared to the submerged pump asphalt melter, the agitated vertical asphalt melter replaces the high-temperature circulation system with an agitation system (agitator and drive unit), resulting in a more compact equipment structure, faster, more uniform and stable heating, and lower failure rate.
The main structure consists of an asphalt tank (straight upper section and conical lower section), thermal oil heating coils (inner and outer coils plus conical coil), agitation system (gear motor, bracket), support frame (upper and lower brackets and columns), and is equipped with electronic load cells, digital thermometer, bottom slag discharge mechanism, as well as an asphalt filter and asphalt buffer (receiving) tank.
Working Principle
The stirring-type asphalt melting device can make the modified asphalt neither decompose nor melt rapidly and continuously, reaching the required process temperature, and continuously and stably discharging the qualified melted asphalt.
1
Melting Zone: Solid asphalt enters from the feeding port. Under high-temperature heat transfer oil and the action of the stirrer, the asphalt is heated uniformly. Liquid asphalt is pressed into the secondary zone while slag enters the conical storage.
2
Secondary Heating: Asphalt undergoes further heating, dehydration, and impurity sedimentation. Once the temperature meets process requirements, qualified asphalt is discharged through a filter to the storage tank.
3
Cleaning & Maintenance: A liquid discharge valve and manhole allow for easy cleaning. Impurities are discharged through the bottom mechanism. Personnel can enter through the manhole for maintenance.
4
Temperature Control: Real-time monitoring at the outlet controls the heat transfer oil valve, regulating melting speed and preventing asphalt aging due to overheating.
Core Applications
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Carbon Industry: Production of prebaked anodes; melting of coal tar pitch binder.
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Road Engineering: Supplying liquid asphalt to asphalt mixing plants, pavement repair, and crack sealing.
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Waterproofing / Chemical Industry: Supplying liquid asphalt for building waterproofing and anti-corrosion projects.
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Types by Form: Drum asphalt melting system, Bagged asphalt melting system, Bulk/lump asphalt continuous melting system.
Frequently Asked Questions
What are the available melting capacities for this equipment?
We offer various structures based on capacity: vertical coils for 2–15 t/h, horizontal bundles for 1–2 t/h, and electric heating for test scales of 100–1000 kg/h.
How does the agitation system improve performance?
The agitation system ensures forced stirring, which eliminates local overheating, enhances heat transfer efficiency, and prevents the degradation of asphalt performance.
Can the equipment operate continuously?
Yes, the system is designed for continuous melting and stable discharge, allowing for 24-hour uninterrupted operation to meet high-demand industrial needs.
How is asphalt aging prevented during the melting process?
The system uses precise temperature measuring points and automated heat transfer oil valves to keep temperatures within a set range, avoiding overheating and aging.
What types of asphalt packaging can this system handle?
The system is versatile and can be configured for drum asphalt, bagged asphalt, and bulk or lump asphalt continuous melting.
How are impurities and slag managed?
The equipment features a conical lower section for slag sedimentation and a dedicated bottom discharge mechanism to ensure clean liquid asphalt and environmental compliance.