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.
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
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.
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.
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.
Smart Images

Figure CN224517439U_ABST