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.

CN122408407APending Publication Date: 2026-07-17SUZHOU GANGSONG BUILDING MATERIALS CO LTD
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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

Technical Problem

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.

Method used

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.

Benefits of technology

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.

✦ Generated by Eureka AI based on patent content.

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Abstract

本申请提供一种基于余热循环的节能烘干装置,包括热风机构、回转滚筒烘干机、布袋除尘器、尾气处理机构和余热循环机构;所述余热循环机构包括导热油管、循环泵和换热器,所述换热器包括第一换热器、第二换热器和第三换热器;所述第一换热器设置于所述热风机构的进风侧,第三换热器设置于回转滚筒烘干机和布袋除尘器之间;第二换热器包括保温夹套和夹套旋转接头,回转滚筒烘干机包括回转筒身,保温夹套套设于回转筒身外侧,夹套旋转接头与保温夹套连通,导热油管分别与夹套旋转接头、第一换热器和第三换热器连通;循环泵使导热油在第一换热器、第二换热器和第三换热器之间循环流动。本申请能够对烘干装置的余热进行利用。
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