Thermal Oil Heated Vertical Bitumen Tank

A vertical bitumen storage tank with indirect thermal oil heating stores bitumen at a specified operating temperature for asphalt production and bulk handling. Thermal oil circulates through an internal heating coil, transferring heat to the bitumen without direct contact between the two fluids.
Indirect Thermal Oil Heating
Heat is transferred through the coil wall. Heating capacity and temperature uniformity depend on the thermal oil system, coil design, bitumen properties and operating conditions.
Insulated Vertical Structure
Thermal insulation and protective outer cladding are selected according to the required holding temperature, ambient conditions and expected storage duration. The vertical layout requires evaluation of tank height, foundation loads and maintenance access.
Integration with Asphalt Plants
Tank capacity, discharge connections, pumps, valves and instrumentation can be specified to match the asphalt plant's storage demand and process interfaces.

Storage Capacity and Working Volume

Select capacity according to daily bitumen consumption, delivery batch size, production demand and reserve requirements. Gross capacity and usable working volume should be specified separately.

Heating Duty and Temperature Control

Define the initial bitumen temperature, target holding temperature and required heat-up time. These parameters determine the thermal duty and help establish the required heater output, oil circulation rate and coil heat-transfer area.

Tank Structure and Installation Conditions

Confirm available ground space, overall height, foundation requirements, wind and environmental loads, access arrangements and installation location before finalizing the tank design.

Connections and Instrumentation

Specify inlet and outlet nozzles, flange standards, venting arrangements, temperature sensors, level measurement, high-level alarms and control interfaces according to the process design.

Final values are established through project engineering and confirmed in the approved technical proposal and drawings.

Manufacturing and inspection requirements should be defined in approved drawings, material specifications and the project inspection and test plan.
Material and Dimensional Inspection
Verify material identification, applicable material certificates, shell geometry, plate thicknesses, nozzle positions and critical interface dimensions against approved documents.
Welding and Non-Destructive Testing
Welding procedures, welder qualifications and NDT methods or inspection coverage should comply with the applicable design requirements and approved inspection plan. Radiographic or penetrant testing is used where specified.
Heating Circuit Testing
Inspect the heating coil, connections and thermal oil piping. Perform applicable pressure or leak tests using approved procedures and acceptance criteria.
Documentation and Handover
The project documentation package may include:

• Material test certificates and traceability records, where specified
• Approved general arrangement and fabrication drawings
• Applicable welding procedure and welder qualification records
• NDT reports and dimensional inspection records
• Pressure or leak test reports, as applicable
• Operation and maintenance manuals

The exact inspection scope and document list should be agreed before production.

Asphalt Mixing Plants
Provides intermediate bitumen storage between bulk deliveries and asphalt production. Capacity and discharge arrangements should match plant consumption and delivery schedules.
Road Construction Projects
Supports bitumen storage for paving operations where required holding temperatures, site conditions and delivery logistics have been assessed.
Bulk Storage Terminals
Can be configured for larger storage requirements with specified unloading connections, transfer lines, level monitoring and venting arrangements.
Standalone or Integrated Supply
The supply scope can be defined for the tank alone or an integrated package. The quotation should identify whether the thermal oil heater, circulation pump, bitumen transfer pump, valves, instrumentation, insulation and control panel are included or supplied separately.

Provide the following information to support technical evaluation and quotation.
Storage Requirements
Required gross and usable capacity, bitumen grade, daily consumption, delivery batch size and expected storage duration.
Thermal Requirements
Initial and target bitumen temperatures, required heat-up time, available heat source and thermal oil supply/return conditions.
Site and Structural Conditions
Installation location, available footprint, maximum height, foundation information, ambient conditions and relevant environmental loads.
Process and Electrical Interfaces
Nozzle sizes, flange standards, pump requirements, control signals, electrical supply and preferred automation arrangements.
Standards and Inspection
Destination country, applicable design code, required third-party inspection, material documentation and project-specific testing requirements.
Drawings and Supporting Documents
Provide a site layout, process flow diagram or preliminary equipment layout where available. These documents help clarify interfaces and installation constraints before final design.

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