Daily maintenance suggestions for pulverized coal injectors (coal injection lances)
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￥450
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Daily Maintenance Recommendations for Pulverized Coal Lances
To extend the service life of lances and reduce abnormal damage, a sound daily inspection and maintenance mechanism needs to be established:
- Regular Visual Inspection: During each lance replacement or blast furnace shutdown, check the lance surface for signs of ablation, deformation, or wear. Pay special attention to whether the multi-hole at the lance tip is clogged or worn out, and promptly clear blockages or replace the lance tip.
- Dimension Inspection: Regularly measure the wall thickness of key parts of the lance (especially the 500mm area at the front end). When the wall thickness is reduced to 1/2 of the design value, replace it in time to avoid sudden perforation.
- Installation Specifications: Ensure that the insertion depth and angle of the lance meet the process requirements, and the connection with the tuyere and ball valve is well sealed to avoid air leakage or airflow deflection.
- Standardized Operation: Strictly follow the procedures for stopping coal injection, supplementary air supply, and lance withdrawal, and control the pressure adjustment speed during blast furnace shutdown/air resumption to avoid ablation caused by operational errors.
- System Linkage Inspection: Regularly check the stability of the pulverized coal conveying system (such as coal supply volume and airflow velocity) and the sealing performance of the ball valve to ensure that the working environment of the lance meets the process requirements and reduce the impact of system failures on the lance.
| Industry Category | Hardware & Tools/Cutting Power Tools/Spray Guns |
|---|---|
| Product Category | |
| Brand: | 翔业 |
| Spec: | DN32喷煤枪|长1700mm |
| Stock: | 1000 |
| Manufacturer: | 翔业（日照）环保设备有限公司 |
| Origin: | 113711 |
