LAUDA temperature control systems utilizing molten salt as a heat carrier offer a revolutionary solution for industrial processes requiring extreme temperatures beyond the capabilities of conventional thermal oils. While thermal oils are generally limited to approximately 400 °C, LAUDA's molten salt technology safely reaches up to 550 °C, opening new possibilities for high-temperature chemical reactions and material processing.

Unmatched High-Temperature Performance

In the temperature window between 120 °C and 550 °C, molten salt mixtures act as an ideal liquid medium. They possess exceptional heat capacity and low viscosity, facilitating efficient energy transfer without the need for high-pressure infrastructure. This pressureless operation significantly reduces the complexity and cost of piping and vessel construction while enhancing overall plant safety.

Innovative Self-Draining Design

One of the most critical challenges in using molten salt is its high solidification point. LAUDA solves this with a sophisticated self-draining system architecture. The system features a heated floor tank equipped with a specialized submersible pump. Whenever the system is idle or the pump is deactivated, the liquid salt automatically drains back into the heated tank. This ensures that no salt can solidify within the external pipes or heat exchangers, allowing for reliable and maintenance-free cold starts.

Precise Cooling and Control

Despite the extreme temperatures, LAUDA ensures pinpoint accuracy. The system can be fitted with integrated air or water cooling modules designed to cool the salt mixture down to temperatures just above its setting point, accurate to within a single degree. This precise level of regulation is essential for sensitive chemical processes like lye evaporation or melamine production.

Key Features

• Unique Temperature Range: Operates efficiently where thermal oils fail, reaching up to 550 °C.
• High Operational Safety: Atmospheric operation eliminates the risks associated with high-pressure steam or pressurized oils.
• Robust Components: High-temperature resistant submersible pumps and specialized valves designed for corrosive salt environments.
• Modular Scalability: Heating and cooling capacities can be tailored to specific application requirements through modular boiler or electric heater units.
• Energy Efficiency: High thermal stability of the salt mixture reduces energy loss during long-term high-temperature cycles.

Typical Application Areas

• Chemical Production: Melamine synthesis and high-temperature reactions.
• Metal Processing: Aluminum dioxide (alumina) production.
• Industrial Processing: Lye evaporation and catalyst activation.
• Renewable Energy: Thermal storage and heat transfer in concentrated solar power applications.