The working principle of mullite honeycomb ceramic heat storage body is based on its unique structural and material characteristics, and heat energy recovery and utilization is achieved through efficient heat storage and exothermic processes.

1. Structural foundation and heat storage mechanism

Honeycomb porous structure: Mullite honeycomb ceramic heat storage body is composed of a large number of parallel arrangement of micro channels (honeycomb pores), and the walls of the pores are porous ceramic materials. This structure provides a great specific surface area (up to 1000-3000 m²/m³), significantly increasing the heat exchange area.

Material characteristics: Mullite (3Al₂O₃·2SiO₂) has a high melting point (1850℃), a low thermal expansion coefficient (about 4.5×10⁻⁶/℃), excellent thermal shock resistance and chemical stability, and is suitable for high-temperature and corrosive environments.

2. Heat storage process

Heat source gas flow: When high-temperature exhaust gas (such as 800-1200℃) passes through the honeycomb ceramic channel, heat is transferred to the channel wall through convection and radiation.

Thermal energy storage: Ceramic materials absorb heat and store it in the crystal lattice, and the exhaust gas temperature is reduced (can be reduced to 150-200℃), achieving waste gas waste heat recovery.

3. Heat release process

Cold fluid flow: Low-temperature air or gas flows in reverse through the heat-storing ceramic pores, absorbing the heat stored on the wall of the pores.

Heat energy release: Cold fluid is heated to high temperatures (such as 500-800°C) as combustion air or preheating fuel to improve combustion efficiency.

4. Periodic switching

Reversing control: Through valves or switching devices, the heat storage body is periodically switched between "heat storage" and "heat release" modes, usually switching every 1-3 minutes to ensure continuous heating.

Heat recovery efficiency: The efficient heat exchange design enables the heat recovery rate to reach more than 90%, significantly reducing energy consumption.

5. Application Advantages

Energy conservation and emission reduction: Reduce fuel consumption (can save 20%-50% energy) by recycling waste gas and reducing CO₂ emissions.

Uniform heating: The honeycomb structure promotes uniform distribution of airflow, reduces local overheating, and extends the life of the equipment.

Low resistance design: parallel channel structure reduces airflow resistance and reduces fan energy consumption.