Research on the Application and Optimization of the Domestic Pneumatic Conveying Sample Carrier in the Automatic Fast-Separation System for Iron and Steel

本文针对全自动铁钢快分系统中风送样盒国产化替代需求，通过材料分析、结构优化及性能测试，解决国产样盒使用寿命短的问题。研究发现，国产一代样盒存在样盖松脱、检测环开裂等缺陷，通过螺纹连接加固、增加壁厚、密封胶应用及耐磨环结构优化等措施，开发出二代国产样盒。测试表明，优化后样盒平均使用寿命超6个月，平均使用次数达6000次以上，较进口样盒成本降低75%，为钢铁行业风送系统国产化提供了技术参考。Aiming at the localization replacement demand of pneumatic conveying sample boxes in the fully automatic iron and steel quick sorting system, this paper solves the problem of short service life of domestic sample boxes through material analysis, structural optimization, and performance testing. The study finds that the first-generation domestic sample boxes have defects such as loose sample lids and cracking of detection rings. By implementing measures such as reinforcing threaded connections, increasing wall thickness, applying sealant, and optimizing wear-resistant ring structures, a second-generation domestic sample box is developed. Tests show that the optimized sample boxes have an average service life of over 6 months and an average number of uses exceeding 6000 times, with a cost reduction of 75% compared to imported sample boxes. This provides a technical reference for the localization of pneumatic conveying systems in the steel industry.