转炉氧枪快换接头快接方式的优化

Optimization of Quick Connection Mode for Quick-change Coupler of Oxygen Lance of Converter

文章对氧枪快换接头的配合公差、倒角结构以及接头和介质接管之间的软连接形式等进行了详细分析,依据分析结果并结合现场的实际情况,改进了氧枪快换接头与介质接管之间的配合尺寸、倒角长度、配合面的表面粗糙度以及补偿器的连接形式等。在不影响氧枪原有使用功能的前提下,实现了240 t转炉氧枪快速更换,缩短了氧枪更换时间,降低了工人的劳动强度,同时保证了作业人员的安全。

In the paper,the fit tolerance and chamfer structure for quick-change coupler of oxygen lance as well as flexible connection mode between coupler and nozzle of medium are analyzed in detail.The fit dimension,chamfer length,surface roughness of fitting surface and type of connection of compensator are improved based on the analysis results combining with actual situations on site.On the premise of not affecting original using functions of oxygen lance,the rapid replacement for oxygen lance of 240 t converter is realized so that the duration of replacing oxygen lance is shortened,labor intensity of workers is reduced and safety of operating personnel is ensured.