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本文着重叙述了综合体多孔喷头孔型布局和孔型结构的合理设计及其改进演变的过程,进而对综合体多孔喷头吹炼工艺的基本理论加以分析,并对综合体多孔喷头喷孔结构的主要参数,如收缩段、喉口稳定段、扩张段的作用、设计原则以及喷孔中心夹角和喷孔流量分配都有较明确的论述。本文对我厂改建后三座转炉用氧枪提出具体改进方案,其设想是富有启发性的。
In this paper, the rational design and the process of the evolution of the hole pattern and hole structure of the composite porous nozzle are emphatically described, and then the basic theory of the compounding porous nozzle blowing technique is analyzed. The main parameters, such as the contraction section, the throat stable section, the role of the expansion section, the design principle as well as the nozzle center angle and nozzle flow distribution are more explicit discussion. In this paper, after the remodeling of our factory, three converter oxygen lances are put forward to propose specific improvement plans. The enlightenment is enlightening.