Coal injection lance (pulverized coal lance for steel mill) Ф34X4
Xiangye Coal Lance (Steel Mill Pulverized Coal Lance) Ф34×4 Technical Analysis
1. Product Specifications and Structure
Model and Dimensions: Heat-resistant seamless steel pipe with outer diameter 34mm and wall thickness 4mm, suitable for blast furnace coal injection systems, customizable in length (common size is 1700mm).
Material: Made of 2520 heat-resistant steel (e.g., SUS310S), treated for wear resistance, with high-temperature oxidation resistance and resistance to pulverized coal erosion.
Connection Method: Straight insertion or oblique insertion design, with an insertion angle typically ranging from 12° to 14°, to prevent the pulverized coal flow from directly blowing the tuyere.
2. Core Functions and Advantages
Coal Injection Performance: Stably transports pulverized coal to the blast furnace tuyere, supports large injection volume (e.g., 300kg per ton of iron), and reduces ironmaking costs.
Durability: Short heat-affected zone, not easy to deform, long service life and repairable, reducing the frequency of blast furnace shutdowns for maintenance.
3. Application Scenarios
Suitable Systems: Specifically used for blast furnace coal injection in steel mills, needs to be matched with supporting equipment such as pulverized coal distributors and ball valves.
Operation Requirements: The insertion depth and angle must be precisely controlled to prevent the pulverized coal flow from eroding the straight blowing pipe or tuyere.
4. Manufacturer and Selection Suggestions
Manufacturer: Xiangye Environmental Protection Equipment Co., Ltd., provides customized services (e.g., dual-tube design for oxygen-coal lances).
Selection Key Points: Choose the insertion method (straight insertion/oblique insertion) based on the pulverized coal particle size, injection pressure and tuyere structure.
If you need technical parameters or installation guidelines, you can contact the manufacturer to obtain detailed documents.
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