一种用于改善焙烧炉炉况和效率的冷却段返灰管道结构

By designing a switchable ash return pipeline structure in the gas suspension roasting furnace system and using automatic control valves to select the appropriate ash return conveying channel, the problems of material blockage and increased energy consumption caused by fine particles entering the roasting furnace circulation were solved, thus achieving stable operation and efficiency improvement of the roasting furnace.

CN224517439UActive Publication Date: 2026-07-17GUIYANG ALUMINUM MAGNESIUM DESIGN & RESEARCH INSTITUTE CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
GUIYANG ALUMINUM MAGNESIUM DESIGN & RESEARCH INSTITUTE CO LTD
Filing Date
2025-06-18
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

In a gas-suspension roasting furnace system, the increased generation of fine particles leads to problems such as material blockage in the return ash conveying pipe, increased energy consumption of the roasting furnace, and reduced operating efficiency. In particular, when the particle size of the material fed into the roasting furnace is too fine, the fine particles in the return ash enter the roasting furnace circulation and trigger a chain reaction.

Method used

Design a switchable ash return pipeline structure. By adding branch pipes and setting automatic control valves on the original ash return pipeline, the appropriate ash return conveying channel can be selected according to the production conditions, avoiding fine particles from entering the high negative pressure cyclone cooling cylinder and improving the furnace condition and efficiency of the roasting furnace.

Benefits of technology

It has achieved stable operation of the calcining furnace under different working conditions, reduced unexpected shutdowns, improved work efficiency, reduced energy consumption, stabilized main furnace flame detection, and prevented material blockage.

✦ Generated by Eureka AI based on patent content.

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Abstract

本实用新型公开了一种用于改善焙烧炉炉况和效率的冷却段返灰管道结构,包括有电收尘器、二级冷却旋风筒、四级冷却旋风筒,电收尘器经返灰管道A与二级冷却旋风筒连接,电收尘器经返灰管道B与四级冷却旋风筒进行连接,返灰管道A与返灰管道B上均设置有阀门。本实用新型所提出的气态悬浮焙烧炉返灰管道结构仅需在原有基础上进行较小的改进,就可以实现不同工况下的管路切换,从而保证焙烧主炉处于最佳炉况。实践证明,该方法简单适用,不仅能有效稳定焙烧炉系统在不同工况下的正常运行,提升工作效率,还能减少因返灰量较大造成的各种意外停车事故。
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