Efficient Direct Fire Asphalt Heater System | China Suppliers & Factory for Asphalt Processing Solutions
Product Description
The asphalt heater is a dedicated heat exchange equipment for heating, warming up, and reducing the viscosity of solid/semi-solid asphalt, enabling it to reach a state suitable for transportation, spraying, mixing or production use. It is the core equipment of the asphalt storage, transportation and processing system.
Main Functions
Heating and melting
Heating the asphalt at room temperature to a flowing state to meet the requirements of pumping, pipeline transportation.
Insulation and temperature control
Stabilizing the working temperature of the asphalt to avoid cooling and thickening, as well as blocking pipelines and equipment.
Adjusting viscosity
Controlling the viscosity of the asphalt through heating to ensure uniform and stable metering, spraying, and mixing.
Preheating for energy saving
Preheating the low-temperature asphalt to reduce the heating load of subsequent processes and improve production efficiency.
Common Types
Heat transfer oil heater
Using high-temperature heat transfer oil as the heat medium, heating the asphalt through coils or shell-side. The temperature is uniform and safe, suitable for continuous production.
Steam heater
Utilizing steam heat exchange, with a simple structure and fast heating speed, mostly used in small-scale asphalt stations and pipeline heating.
Electric asphalt heater
Small in size, easy to install, and precise in temperature control, often used for small flow rates and local heating.
Sleeve-type / shell-and-tube heater
The asphalt flows through the shell-side, while the heat medium flows through the tube-side. The heat exchange efficiency is high, suitable for large-scale continuous heating.
Working characteristics
- Working temperature: Generally 120-200℃.
- Must have good insulation to reduce heat loss.
- The asphalt side flow channel is designed smoothly to prevent local overheating, aging, coking and carbon deposition.
- Often used in conjunction with asphalt pumps, filters, buffer tanks.
Typical application locations
- Heating inside/outside asphalt storage tanks.
- Heating asphalt transportation pipelines.
- Heating before the production of modified asphalt, emulsified asphalt.
- Supply systems for asphalt mixing stations, road construction, waterproofing membranes, carbon industries.
Frequently Asked Questions
An asphalt heater is dedicated heat exchange equipment used to heat, warm up, and reduce the viscosity of solid or semi-solid asphalt. This process ensures the asphalt reaches a flowing state suitable for transportation, spraying, mixing, or production use.
The main functions include heating and melting asphalt to a flowing state, providing insulation and temperature control to prevent pipeline blockage, adjusting viscosity for uniform metering and spraying, and preheating to save energy for subsequent processes.
Asphalt heaters generally operate within a working temperature range of 120°C to 200°C, depending on the specific flow and application requirements.
The heat transfer oil heater is the mainstream choice for continuous production because it uses high-temperature heat transfer oil as the heat medium through coils or shell-side, ensuring a uniform and safe temperature.
Typical application locations include inside or outside asphalt storage tanks, along transportation pipelines, before the production of modified or emulsified asphalt, and within supply systems for asphalt mixing stations, road construction, waterproofing membranes, and carbon industries.
The asphalt side flow channel is designed to be completely smooth, which ensures even heat distribution and prevents local overheating, aging, coking, and carbon deposition.