一种免拆式焦炉煤气预热器清扫系统及清扫方法
By using a non-disassembly cleaning system and method, and utilizing a combination of ammonia and steam, efficient cleaning of the coke oven gas preheater was achieved, solving the problems of increased pressure differential and reduced preheating capacity, improving safety and efficiency, and reducing labor and time costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- SHANDONG IRON & STEEL CO LTD
- Filing Date
- 2025-07-29
- Publication Date
- 2026-07-17
AI Technical Summary
During use, coke oven gas preheaters are prone to increased pressure differential and reduced preheating capacity due to deposits. Existing cleaning methods are not ideal and have problems such as long disassembly and maintenance time, large number of personnel, and significant safety hazards.
A non-disassembly cleaning system is adopted, which uses ammonia water injection port, delivery pipe, sewage valve and three-way connection pipe, combined with the control of steam and ammonia water, to achieve comprehensive cleaning of coke oven gas preheater, including cleaning of bell mouth, heat exchange tube, gas inlet pipe and drainer. Hot ammonia water is used to dissolve organic precipitates and steam power is used to separate insoluble precipitates.
It eliminates the need to disassemble the preheater, ensuring high safety, significantly improving cleaning efficiency, reducing the number of personnel and time required, avoiding secondary accidents caused by hot work, and ensuring the stability of coke oven heating.
Smart Images
Figure CN120800079B_ABST