Energy-saving drying device based on waste heat circulation
By combining waste heat recycling and cyclone separators, multi-stage recovery and utilization of waste heat from the rotary drum dryer's flue gas is achieved, solving the problems of energy waste and bag filter clogging, and improving the energy efficiency and stability of the equipment.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- SUZHOU GANGSONG BUILDING MATERIALS CO LTD
- Filing Date
- 2026-05-25
- Publication Date
- 2026-07-17
AI Technical Summary
In existing drying equipment, the waste heat from the high-temperature flue gas discharged by the rotary drum dryer is not effectively utilized, resulting in energy waste. Furthermore, the bag filter is prone to clogging, leading to unstable equipment operation.
The waste heat circulation mechanism is adopted, and heat transfer oil circulates between the first, second and third heat exchangers to achieve graded recovery and utilization of waste heat; combined with the cyclone separator and oil circuit heat exchange components, water vapor and large dust particles in the flue gas are separated, and double-layer heat exchange is carried out through the central heat exchange component and the oil circuit heat exchange component; blade cleaning components and wire mesh cleaning mechanisms are set to keep the equipment clean.
It improves energy efficiency, reduces energy consumption, extends the service life of bag filters, reduces equipment maintenance frequency, and ensures long-term stable operation of the equipment.
Smart Images

Figure CN122408407A_ABST