High Capacity Liquid Asphalt Storage Tank System - China Suppliers and Factory for Road Construction Solutions
Product Description
A liquid asphalt storage tank is a sealed steel tank used for long-term, large-capacity storage of high-temperature liquid asphalt. It is the core equipment for material storage, thermal insulation, and transfer in asphalt mixing plants, modified asphalt production lines, waterproofing membrane manufacturing, and the carbon industry, providing a stable source of asphalt for the entire production system.
Main Classification
By Structure
Most commonly used, standard for job sites/asphalt mixing plants. Capacity 5–100 tons, movable, fast installation, small footprint.
Large fixed storage tank, capacity 100–5,000 tons, used for asphalt depots and large mixing plants, high storage capacity.
By Heating Method
Thermal oil coils arranged inside the tank with an external thermal oil heater. Uniform heating, no asphalt coking or aging, stable temperature control. Industry mainstream.
Fast temperature rise, low cost, suitable for remote job sites. Pay attention to exhaust and explosion protection.
Used for small tanks, clean with no open flame, suitable for waterproofing and small repair projects.
Core Structure (Three-Layer Tank + Systems)
- Inner tank: Q235B carbon steel, thickness 6–10 mm, resistant to high-temperature asphalt corrosion. Equipped with internal thermal oil coils, localized rapid heating zone, and ultra-low level asphalt extraction port, allowing complete drainage of asphalt from tank bottom.
- Insulation layer: 100–150 mm high-density rock wool/aluminum silicate, outer layer covered with aluminum sheet cladding. Excellent thermal insulation performance, temperature drop <1°C/h.
- Outer shell: Carbon steel protective cladding, weatherproof (rain and sun protection).
- Temperature control system: Automatic temperature control, typical storage temperature 130–160°C.
- Asphalt pump + piping: Connects to melter for feeding and to construction equipment for discharging.
- Monitoring devices: Level gauge, pressure gauge, breather valve, manhole, explosion-proof device.
- Optional mixing device: Prevents localized solidification and stratification.
Key Technical Features
Only heats the discharge zone instead of the entire tank, energy-saving, does not degrade overall asphalt quality.
Maintains asphalt in a fluid state throughout storage, preventing solidification, carbonization, and degradation.
Equipped with breather valve and fume collection system, reduces asphalt fume emissions.
Integrates with asphalt melter to achieve a complete system of solid asphalt melting → liquid asphalt storage → continuous discharge.
Common Specifications (Weight/Capacity)
Operating Principle
Difference from Buffer Tank
Capacity: Large capacity
Storage Term: Long-term storage
Heating: Overall heating
Primary Use: Main material storage
Capacity: Small capacity
Storage Term: Short-term transfer
Heating: Pressure stabilization and degassing
Primary Use: Intermediate link